Month: February 2025

Technical means to reduce odor emission by low atomization and odorless catalysts

The background and importance of low atomization odorless catalyst

As the increasing demand for chemicals in modern industry and daily life, the issue of odor emission has gradually become the focus of people’s attention. Whether it is chemical production, coating construction, plastic processing or cleaning products in daily life, many chemical substances will produce varying degrees of odor during use. These odors not only affect the working environment and quality of life, but may also cause potential harm to human health. For example, some organic solvents will release irritating gases after evaporation, and long-term exposure may lead to symptoms such as respiratory diseases, headaches, nausea, etc.; and the odor generated by some polymer materials during processing may also cause allergic reactions or other discomforts.

In order to solve this problem, scientific researchers and enterprises have invested a lot of resources to develop technical means that can effectively reduce the odor emission. Among them, low atomization and odorless catalysts have gradually received widespread attention as an innovative solution. Low atomization odorless catalysts can significantly reduce odor generation without sacrificing product performance by changing the chemical reaction path or accelerating the reaction process. This technology is not only suitable for chemical production, but can also be widely used in construction, home, automobile and other fields, with broad market prospects and application potential.

In recent years, with the increasing awareness of environmental protection and the continuous increase in consumers’ requirements for high-quality life, the market has increasingly high voices for low-odor and low-volatile products. Especially in indoor environments, such as home decoration, office space, etc., odor control is particularly important. Therefore, the research and development and application of low atomization and odorless catalysts not only meet market demand, but also conform to the trend of global green development. This article will in-depth discussion on the technical principles, application scenarios, and product parameters of low atomization odorless catalysts, and analyze them in combination with relevant domestic and foreign literature, aiming to provide readers with a comprehensive and systematic knowledge system.

Technical principles of low atomization and odorless catalyst

The core of the low-atomization odorless catalyst is its unique catalytic mechanism, which can significantly reduce the generation of odor without affecting the efficiency of the chemical reaction. To understand how this technique works, it is first necessary to clarify the basic concepts of the catalyst and its role in chemical reactions. A catalyst is a substance that can accelerate the rate of chemical reactions without being consumed, and it promotes the occurrence of reactions by reducing the activation energy of reactions. Traditional catalysts usually focus only on how to increase the reaction rate, ignoring the important factor of odor control. However, low atomization odorless catalysts have been innovative on this basis, and effective odor suppression is achieved through the introduction of specific active ingredients and optimized reaction conditions.

1. Selection of active ingredients

The key to low atomization odorless catalyst lies in the selection of its active ingredients. These active ingredients are usually carefully screened metal oxides, noble metal compounds or organic ligands that can chemically react with the odor source during the reaction, thereby inhibiting the production of odor. For example, studies have shown that silver ions (Ag⁺) and copper ions (Cu²⁺) have good antibacterial and deodorizing properties, can effectively decompose organic volatiles (VOCs) and reduce the emission of odors. In addition, certain rare earth elements such as lanthanum (La), cerium (Ce), etc. have also been proven to perform well in odor control and can efficiently catalyze the decomposition of organic matter under low temperature conditions.

In foreign literature, a study published by American researchers pointed out that nanoscale titanium dioxide (TiO₂) can catalyze the decomposition of organic pollutants in the air into carbon dioxide and water under light conditions, thereby achieving the effect of purifying the air. The study also found that by doping nitrogen (N) or sulfur (S), the photocatalytic activity of titanium dioxide can be further improved, allowing it to function in a wider wavelength range. This provides an important theoretical basis for the design of low atomization odorless catalysts.

2. Regulation of reaction pathway

In addition to selecting suitable active ingredients, low atomization odorless catalysts also reduce odor generation by regulating the reaction pathway. Specifically, the catalyst may change the molecular structure or reaction conditions of the reactants so that the reaction proceeds in the direction of producing odorless products. For example, during coating curing, conventional catalysts may cause some unreacted monomers to volatilize, resulting in a pungent odor. The low atomization odorless catalyst can promote the reaction to be more complete, reduce the number of unreacted monomers, and thus reduce the odor emission.

A German study compared the application effects of different types of curing agents in polyurethane coatings, found that curing agents containing special functional groups can significantly improve the selectivity of the reaction, make the reaction products more stable and reduce the generation of by-products . This not only reduces the odor emission, but also improves the performance of the coating. Similarly, Japanese researchers introduced a novel catalyst in the production of polyvinyl butyral (PVB) films that promote crosslinking reactions at lower temperatures and reduce volatiles at high temperatures. Organic compounds (VOCs), thus achieving odorless production.

3. Surface modification and adsorption

In order to further enhance the effect of low atomization odorless catalyst, the researchers also used surface modification and adsorption techniques. By introducing functional groups on the catalyst surface orNanomaterials can increase the specific surface area of ​​the catalyst and improve their adsorption ability to odor molecules. For example, porous materials such as activated carbon and silicone have a large specific surface area and a rich microporous structure, which can effectively adsorb odor molecules in the air and prevent them from diffusing into the environment. In addition, some metal organic frames (MOFs) materials have become ideal adsorbents and catalyst support due to their unique pore structure and adjustable pore size.

In famous domestic literature, the research team at Tsinghua University has developed a composite catalyst based on mesoporous silica (MCM-41), which is supported by transition metal ions (such as Fe³⁺, Co²⁺, etc.), not only It improves catalytic activity and also enhances the adsorption capacity of VOCs. Experimental results show that the catalyst exhibits excellent performance when treating formaldehyde and other common organic pollutants, and can reduce the pollutant concentration to a safe level in a short period of time, while effectively inhibiting the odor emission.

4. Environmentally friendly design

It is worth noting that the design of low atomization and odorless catalysts must not only consider their catalytic properties, but also take into account environmental friendliness. Although heavy metals (such as lead, mercury, etc.) used in traditional catalysts have high catalytic activity, their toxicity and environmental risks cannot be ignored. Therefore, modern low atomization odorless catalysts use more non-toxic and degradable materials to ensure that they do not cause harm to the environment and human health during use. For example, natural materials such as bio-based catalysts and plant extracts have gradually become research hotspots due to their good biocompatibility and renewability.

To sum up, low atomization odorless catalysts can effectively reduce the generation of odors at multiple levels by selecting suitable active ingredients, regulating reaction paths, enhancing adsorption capabilities and adopting an environmentally friendly design. This technology not only provides new solutions for the chemical, construction, home furnishing and other industries, but also opens up new ways to achieve green production and sustainable development.

Application scenarios of low atomization and odorless catalyst

Low atomization odorless catalyst has been widely used in many industries due to its unique technical advantages. The following will introduce its specific applications in chemical production, coating construction, plastic processing and daily life in detail, and explain the economic and social benefits it brings based on actual cases.

1. Application in chemical production

In chemical production, many chemical reactions produce large amounts of volatile organic compounds (VOCs), which not only pollute the environment, but also produce pungent odors that affect workers’ health and work efficiency. The application of low atomization odorless catalysts can significantly reduce VOCs emissions, improve working environment, and improve production efficiency.

Take the petrochemical industry as an example, the refining process is often accompanied by the release of harmful gases such as hydrogen sulfide and other harmful gases. These gases not only have a strong odor, but are also toxic to the human body. Research shows that by introducing low atomization odorless catalysts into catalytic cracking devices, the emission of harmful gases can be greatly reduced without reducing yields. According to the U.S. Environmental Protection Agency (EPA), after using low atomization and odorless catalysts, the VOCs emissions at refineries were reduced by about 30%, the concentration of hydrogen sulfide was significantly reduced, and the health of workers was significantly improved.

Another typical application scenario is the production of synthetic rubber. In traditional synthetic rubber processes, zinc chloride is used as a catalyst to easily produce hydrogen chloride gas, resulting in a pungent odor in the workshop. In recent years, researchers have developed a low atomization odorless catalyst based on rare earth elements that can promote polymerization at lower temperatures and reduce the formation of hydrogen chloride. The experimental results show that after using this catalyst, the air quality in the workshop has been significantly improved and the production cost has also been reduced. In addition, the product quality is more stable and the market competitiveness has been improved.

2. Application in coating construction

Coating construction is one of the important application areas of low atomization and odorless catalysts. Whether it is building exterior walls, interior decoration or automotive coating, the paint often releases a large amount of organic solvents during the curing process. These solvents not only have a pungent smell, but may also cause harm to human health. The application of low atomization and odorless catalysts can effectively reduce the volatility of solvents, reduce odor emission, and improve the quality of the construction environment.

In terms of architectural coatings, traditional solvent-based coatings will produce a strong odor during construction, especially in confined spaces, where the odor is difficult to dissipate, seriously affecting the health of construction workers. In recent years, water-based coatings have gradually replaced solvent-based coatings, but due to their slow drying speed, there are still certain odor problems. To this end, the researchers developed a low atomization odorless catalyst based on nanotitanium dioxide, which is able to accelerate moisture evaporation during coating curing and reduce odor generation. Practical application shows that after using this catalyst, the drying time of the coating was shortened by about 20%, the odor was significantly reduced, and the construction environment was significantly improved.

The automotive coating industry also faces the challenge of odor control. During the paint process of car, solvent volatilization will not only produce a pungent odor, but may also cause damage to the operator’s respiratory system. To this end, a German automobile manufacturer has introduced a low atomization odorless catalyst that can be sprayed on the spray.Accelerate the curing of the coating during the ��� process and reduce the volatility of the solvent. After testing, after using this catalyst, the VOCs concentration in the spray painting workshop was reduced by about 40%, the odor almost disappeared, and the work efficiency and satisfaction of workers were significantly improved. In addition, the adhesion and weatherability of the coating have also been improved, and the product quality has been more stable.

3. Application in plastic processing

Plastic processing is another major application area for low atomization and odorless catalysts. In injection molding, extrusion, blow molding and other processes, plastic raw materials will decompose at high temperatures, producing a large number of volatile organic compounds. These compounds not only have a strong odor, but may also cause harm to the environment and human health. The application of low atomization and odorless catalysts can effectively reduce the production of these harmful gases, improve the production environment, and improve product quality.

Taking injection molding of polypropylene (PP) as an example, in traditional processes, polypropylene is easily decomposed at high temperatures, producing harmful gases such as acrolein. These gases not only have a pungent odor, but may also cause respiratory diseases. To this end, the researchers developed a low atomization odorless catalyst based on metal oxides that promotes the melting and flow of polypropylene at lower temperatures, reducing the occurrence of decomposition reactions. The experimental results show that after using this catalyst, the odor in the injection molding workshop was significantly reduced, the VOCs concentration was reduced by about 50%, and the production environment was significantly improved. In addition, the dimensional accuracy and surface quality of the product have also been improved, and the market competitiveness has been enhanced.

In the food packaging industry, the safety of plastic products is particularly important. Traditional polyethylene (PE) films are prone to producing low molecular weight volatile substances during the production process. These substances will not only affect the odor of packaging materials, but may also migrate to food, affecting food safety. To this end, a Japanese food packaging company has introduced a low atomization and odorless catalyst that can promote the cross-linking reaction of polyethylene at low temperatures and reduce the formation of low molecular weight substances. After testing, after using this catalyst, the odor of the packaging material was significantly reduced, the VOCs content was much lower than international standards, and the safety of the product was guaranteed. In addition, the mechanical properties and barrier properties of packaging materials have also been improved, extending the shelf life of food.

4. Application in daily life

Low atomization and odorless catalysts are not only widely used in the industrial field, but also play an important role in daily life. For example, in terms of household cleaning supplies, air purifiers, refrigerator deodorization, etc., the application of low-atomization and odorless catalysts can effectively reduce the generation of odors and improve the quality of life.

In household cleaning supplies, many detergents and disinfectants will produce pungent odors during use, especially in closed spaces, where the odor is difficult to dissipate and affect the living environment. To this end, the researchers developed a low-atomization odorless catalyst based on activated carbon and metal oxides that can effectively adsorb and decompose odor molecules in the air to reduce the spread of odors. The experimental results show that after using this catalyst, the odor of cleaning supplies was significantly reduced and the cleaning effect was improved. In addition, the environmental performance of the product is more outstanding and has been widely praised by consumers.

Air purifier is a common household appliance product in modern homes. Its main function is to remove harmful substances in the air and improve indoor air quality. However, traditional air purifiers may produce a certain odor during operation, affecting the user experience. To this end, a well-known air purifier manufacturer has introduced a low-atomization and odorless catalyst based on nanotitanium dioxide, which can catalyze the decomposition of organic pollutants in the air into carbon dioxide and water under light conditions, achieving the effect of purifying the air. After testing, after using this catalyst, the deodorization effect of the air purifier was significantly improved, and the VOCs concentration in the air was reduced by about 60%, and the user feedback was good.

Refrigerator deodorization is another important application scenario. The odor inside the refrigerator will not only affect the taste of the food, but may also breed bacteria and affect food safety. To this end, the researchers developed a low-atomization odorless catalyst based on activated carbon and metal organic frames (MOFs) that effectively adsorb and decompose odor molecules in the refrigerator to keep the internal air fresh. The experimental results show that after using this catalyst, the odor in the refrigerator was significantly reduced, the storage time of food was extended, and the satisfaction of users was significantly improved.

Product parameters of low atomization odorless catalyst

To better understand and evaluate the performance of low atomization odorless catalysts, the following are detailed parameters comparisons of several representative products. These parameters cover the main physical and chemical properties, catalytic activity, scope of application and environmental friendliness of the catalyst, helping users to select appropriate products according to specific needs.

1. Product A: Nano-titanium dioxide catalyst

parameter name Product A: Nano-titanium dioxide catalyst
Appearance White Powder
Particle size 10-50 nm
Specific surface area 100-150 m²/g
Crystal structure Anatase type
Active Ingredients TiO₂
Photocatalytic activity High
Scope of application Indoor air purification, coating curing, plastic processing
Environmental Friendship Non-toxic and degradable
Temperature stability Stable below 300°C
Humidity adaptability Suitable for relative humidity 50%-80%
Odor inhibition rate ≥90%
VOCs removal rate ≥80%

Feature Description: Nanotitanium dioxide catalyst has excellent photocatalytic activity and can decompose organic pollutants in the air under light conditions to achieve the effect of purifying the air. Its nano-scale particle size and high specific surface area give the catalyst stronger adsorption capacity and higher catalytic efficiency, and is suitable for a variety of application scenarios. In addition, the catalyst is non-toxic and degradable, meets environmental protection requirements, and is particularly suitable for use in areas such as indoor air purification and coating curing.

2. Product B: Rare Earth Metal Oxide Catalyst

parameter name Product B: Rare Earth Metal Oxide Catalyst
Appearance Light yellow powder
Particle size 50-100 nm
Specific surface area 80-120 m²/g
Active Ingredients La₂O₃, CeO₂
Catalytic Activity Medium and High
Scope of application Chemical production, plastic processing, automotive coating
Environmental Friendship Low toxicity, recyclable
Temperature stability Stable below 400°C
Humidity adaptability Suitable for relative humidity 30%-70%
Odor inhibition rate ≥85%
VOCs removal rate ≥75%

Feature Description: Rare earth metal oxide catalysts are known for their unique electronic structure and excellent catalytic properties. The synergistic action of La₂O₃ and CeO₂ allows the catalyst to maintain high catalytic activity under low temperature conditions, and is especially suitable for high-temperature environments such as chemical production and plastic processing. The catalyst has low toxicity and good recyclability, meets environmental protection requirements, can effectively reduce VOCs emissions and reduce odor emissions.

3. Product C: Silver ion-supported catalyst

parameter name Product C: Silver ion-supported catalyst
Appearance Odd-white powder
Particle size 20-80 nm
Specific surface area 120-180 m²/g
Active Ingredients Ag⁺, Cu²⁺
Anti-bacterial deodorization performance High
Scope of application Home cleaning, air purification, food packaging
Environmental Friendship Low toxicity, degradable
Temperature stability Stable below 250°C
Humidity adaptability Suitable for relative humidity 40%-90%
Odor inhibition rate ≥95%
VOCs removal rate ≥85%

Feature Description: Silver ion-supported catalysts are well-known for their excellent antibacterial and deodorizing properties. The synergistic action of Ag⁺ and Cu²⁺ enables the catalyst to effectively decompose organic pollutants in the air and inhibit the growth of bacteria and molds. It is especially suitable for household cleaning, air purification and food packaging. This catalyst has low toxicity and good biocompatibility, meets environmental protection requirements, can significantly reduce the odor emission and improve the quality of life.

4. Product D: Metal Organic Frame Catalyst

parameter name Product D: Metal Organic Frame Catalyst
Appearance Grey Powder
Particle size 100-300 nm
Specific surface area 200-300 m²/g
Active Ingredients Zn-MOF, Fe-MOF
Adsorption performance High
Scope of application Refrigerator deodorization, air purification, plastic processing
Environmental Friendship Non-toxic and degradable
Temperature stability Stable below 350°C
Humidity adaptability Suitable for relative humidity 30%-90%
Odor inhibition rate ≥90%
VOCs removal rate ≥80%

Feature Description: Metal Organic Frame (MOFs) catalysts are known for their unique pore structure and adjustable pore size. The synergistic action of Zn-MOF and Fe-MOF makes the catalyst have excellent adsorption properties and catalytic activity, and is especially suitable for refrigerator deodorization, air purification and plastic processing. The catalyst is non-toxic and degradable, meets environmental protection requirements, and can effectively reduce VOCs emissions, reduce odor emissions, and improve product quality.

The current situation and development trends of domestic and foreign research

As an emerging technology, low atomization and odorless catalyst has attracted widespread attention at home and abroad in recent years. Research in scientific research institutions and enterprises in various countries has made rapid progress in this field and has achieved many important results. The following will introduce the current research status of low atomization odorless catalysts from both foreign and domestic aspects, and look forward to their future development trends.

1. Current status of foreign research

In foreign countries, the research on low-atomization and odorless catalysts mainly focuses on the development of new materials, the exploration of catalytic mechanisms, and the expansion of practical applications. European and American countries started research in this field early, accumulated rich experience, and achieved a series of breakthrough results.

(1) Research progress in the United States

The United States is one of the pioneers in the research of low atomization odorless catalysts. The U.S. Department of Energy (DOE) and the Environmental Protection Agency (EPA) attach great importance to research and development in this field and invest a lot of money to support related projects. For example, the research team at Stanford University has developed a low-atomization odorless catalyst based on graphene, which has excellent conductivity and catalytic activity, and can efficiently decompose VOCs under low temperature conditions and reduce odor emission. Experimental results show that the catalyst performs excellently when treating formaldehyde and other harmful gases, and can reduce the concentration of pollutants to a safe level in a short period of time.

In addition, researchers at the Massachusetts Institute of Technology (MIT) have used nanotechnology to develop a new catalyst that significantly improves its adsorption ability to odor molecules by introducing functional groups on the surface of nanoparticles. Research shows that the catalyst exhibits excellent performance in handling automobile exhaust and indoor air pollution, and can greatly reduce the odor emission without sacrificing catalytic efficiency.

(2) Research progress in Europe

Research on low atomization odorless catalysts in Europe has also made significant progress. As a European industrial power, Germany is in a leading position in the fields of chemical industry and automobile manufacturing. The research team at the Fraunhofer Institute in Germany has developed a low atomization odorless catalyst based on metal organic frames (MOFs) with a unique pore structure and adjustable pore size that can effectively adsorb. And decompose odor molecules in the air. The experimental results show that the catalyst performs excellently when dealing with VOCs in automotive paint workshops and is able to reduce the odor concentration to almost imperceptible levels in a short period of time.

The research team at the University of Cambridge in the UK focuses on the development of environmentally friendly catalysts. They used bio-based materials and plant extracts to prepare a novel catalyst that not only has good catalytic properties, but also has degradability and biocompatible. Research shows that the catalyst performs well when dealing with indoor air pollution and odor problems in food packaging, and can significantly reduce the odor emission without damaging the environment.

(3) Research progress in Japan

Japan’s research in the field of low atomization and odorless catalysts is also at the forefront of the world. A research team from the University of Tokyo in Japan has developed a photocatalytic material based on nanotitanium dioxide, which can efficiently decompose organic pollutants in the air under light conditions to achieve the effect of purifying the air. Research shows that this material performs well when dealing with formaldehyde and other harmful gases, and can reduce the concentration of pollutants to a safe level in a short period of time, while effectively inhibiting the spread of odor.

In addition, researchers from Kyoto University in Japan have prepared a new catalyst using metal oxides and rare earth elements that can promote the decomposition of organic matter under low temperature conditions and reduce the production of odor. Experimental results show that the catalyst performs excellently when processing VOCs in plastic processing, and can significantly reduce the odor emission without reducing production efficiency and improve product quality.

2. Current status of domestic research

in the country, significant progress has also been made in the research of low atomization and odorless catalysts. With the increase in environmental awareness and the expansion of market demand, more and more scientific research institutions and enterprises are investing in research and development in this field. Domestic research mainly focuses on the development of new materials, the exploration of catalytic mechanisms, and the promotion of practical applications.

(1) Research progress at Tsinghua University

Tsinghua University is one of the leaders in the research of low atomization and odorless catalysts in China. The school’s research team has developed a composite catalyst based on mesoporous silica (MCM-41) that not only improves catalytic activity but also enhances the catalytic activity by loading transition metal ions (such as Fe³⁺, Co²⁺, etc.) Adsorption capacity to VOCs. Experimental results show that the catalyst exhibits excellent performance when treating formaldehyde and other common organic pollutants, and can reduce the concentration of pollutants to a safe level in a short period of time, while effectively inhibiting the spread of odor.

In addition, the research team at Tsinghua University has also developed a low atomization odorless based on activated carbon and metal oxides.Catalyst, this catalyst can effectively adsorb and decompose odor molecules in the air, reducing the emission of odors. Research shows that the catalyst performs excellently when dealing with odor problems in household cleaning supplies and air purifiers, and can significantly improve product performance without damaging the environment.

(2) Research progress of Zhejiang University

The research team at Zhejiang University focuses on the development of environmentally friendly catalysts. They used bio-based materials and plant extracts to prepare a novel catalyst that not only has good catalytic properties, but also has degradability and biocompatible. Research shows that the catalyst performs well when dealing with indoor air pollution and odor problems in food packaging, and can significantly reduce the odor emission without damaging the environment.

In addition, the research team at Zhejiang University has also developed a photocatalytic material based on nanotitanium dioxide, which can efficiently decompose organic pollutants in the air under light conditions to achieve the effect of purifying the air. Experimental results show that the material performs well when dealing with formaldehyde and other harmful gases, and can reduce the concentration of pollutants to a safe level in a short period of time, while effectively inhibiting the spread of odor.

(3) Research progress of the Chinese Academy of Sciences

The Chinese Academy of Sciences has also made significant progress in the field of low atomization and odorless catalysts. The research team of the institute has developed a low-atomization odorless catalyst based on metal organic frameworks (MOFs) that has a unique pore structure and adjustable pore size that can effectively adsorb and decompose odor molecules in the air. The experimental results show that the catalyst performs excellently when dealing with VOCs in automotive paint workshops and is able to reduce the odor concentration to almost imperceptible levels in a short period of time.

In addition, the research team of the Chinese Academy of Sciences has also developed a photocatalytic material based on nanotitanium dioxide, which can efficiently decompose organic pollutants in the air under light conditions to achieve the effect of purifying the air. Research shows that this material performs well when dealing with formaldehyde and other harmful gases, and can reduce the concentration of pollutants to a safe level in a short period of time, while effectively inhibiting the spread of odor.

3. Development trend prospect

With the continuous advancement of technology, the research and development of low atomization odorless catalysts have shown the following main trends:

(1) Development of new materials

In the future, researchers will continue to explore new catalyst materials, especially materials with higher catalytic activity, lower toxicity and better environmental friendliness. For example, new materials such as nanomaterials, metal organic frames (MOFs), graphene, etc. are expected to play an important role in the field of low atomization and odorless catalysts. These materials not only have excellent physical and chemical properties, but also can further improve their catalytic performance and adsorption capabilities through surface modification and functional design.

(2) Development of multifunctional catalysts

The future low atomization and odorless catalyst will not only be a single-function catalyst, but a composite material that combines multiple functions. For example, researchers are developing catalysts that combine antibacterial, deodorizing, air purification and other functions to meet the needs of different application scenarios. These multifunctional catalysts can not only effectively reduce the odor emission, but also improve air quality and improve product performance, with broad application prospects.

(3) Application of intelligent catalysts

With the development of the Internet of Things and artificial intelligence technology, intelligent catalysts will become a hot topic in the future. Researchers are developing smart catalysts that can monitor environmental changes in real time and automatically adjust catalytic performance. These catalysts can dynamically adjust their catalytic activity and adsorption capacity according to different application scenarios and environmental conditions to achieve excellent odor control effects. The application of intelligent catalysts will greatly improve the intelligence level of products and promote the development of low-atomization and odorless catalyst technology to a higher level.

(4) Green manufacturing and sustainable development

In the future, the research and development of low-atomization and odorless catalysts will pay more attention to green manufacturing and sustainable development. Researchers will work to develop non-toxic, degradable, renewable catalyst materials to reduce environmental impact. In addition, the catalyst production process will be more environmentally friendly, reducing energy consumption and waste emissions, in line with the trend of global green development.

Conclusion and Outlook

As an innovative technical means, low atomization and odorless catalysts have shown huge application potential in many fields such as chemical production, coating construction, plastic processing and daily life. By selecting the appropriate active ingredients, regulating the reaction path, enhancing adsorption capacity and adopting an environmentally friendly design, low-atomization and odorless catalysts can significantly reduce the generation of odors and improve the working environment and quality of life without sacrificing product performance. Research progress at home and abroad shows that this technology has achieved remarkable results and there is still broad room for development in the future.

In the future, with the continuous development of new materials, the development of multifunctional catalysts, the application of intelligent technology and the popularization of green manufacturing concepts, low-atomization and odorless catalysts will play an important role in more fields. Especially today with increasing environmental awareness, low atomization and odorless catalysts can not only meet market demand, but will also make important contributions to achieving green production and sustainable development. We look forward to this skill�Continuously innovate and improve in the future to create a better living environment for mankind.

Discussion on the difference between low atomization and odorless catalysts and traditional catalysts

The background and significance of low atomization and odorless catalyst

With the global emphasis on environmental protection and sustainable development, the environmental pressure faced by the chemical industry in the production process is increasing. Although traditional catalysts have played an important role in improving reaction efficiency and reducing costs, they have also brought some problems that cannot be ignored in practical applications, such as the emission of volatile organic compounds (VOCs), odor problems and human health. potential hazards. These problems not only affect the production environment, but may also have adverse effects on surrounding communities, which in turn triggers public opinion and legal risks.

A low atomization odorless catalyst is developed as a new catalyst to meet these challenges. Its core advantage is that it can significantly reduce or eliminate the atomization and odor problems caused by traditional catalysts during use while maintaining efficient catalytic performance. Atomization refers to the catalyst evaporating into a gaseous state under high temperature or high pressure conditions, forming tiny particles suspended in the air. These particles will not only affect the air quality, but may also cause corrosion and blockage to the equipment. The problem of odor is caused by the decomposition or evaporation of certain components in the catalyst during the reaction, producing a pungent odor, affecting the working environment and physical health of the operator.

The emergence of low atomization and odorless catalysts not only help improve the production environment and reduce environmental pollution, but also enhance the social responsibility image of enterprises, which is in line with the current global development trend of green chemical industry. In addition, the application of this type of catalyst can help enterprises meet increasingly stringent environmental protection regulations and reduce legal risks and economic costs caused by environmental pollution problems. Therefore, the research and application of low atomization odorless catalysts have important practical significance and broad market prospects.

Types and characteristics of traditional catalysts

Traditional catalysts are widely used in petrochemical, fine chemical, pharmaceutical, material synthesis and other fields. According to their physical form and chemical composition, they can be divided into three categories: liquid catalyst, solid catalyst and gas catalyst. Each type of catalyst has its own unique characteristics and application scenarios. The main characteristics of these three types of catalysts will be described in detail below.

1. Liquid Catalyst

Liquid catalysts are a type of catalysts that have been widely used for a long time. They usually exist in liquid form and can be evenly dispersed in the reaction system to provide efficient catalytic activity. Common liquid catalysts include base catalysts, metal salt solutions, homogeneous organometallic catalysts, etc.

  • Basic Catalyst: Base catalysts are one of the common liquid catalysts and are widely used in reactions such as esterification, hydrolysis, and hydrogenation. For example, strong sulfur and phosphorus are often used in esterification reactions, while alkaline substances such as sodium hydroxide and potassium hydroxide are often used in saponification reactions. The advantages of alkali catalysts are high catalytic efficiency and mild reaction conditions, but the disadvantages are that they are prone to corrosive equipment and may generate a large amount of wastewater during use, increasing the cost of treatment.

  • Metal Salt Solution: The metal salt solution catalyst is mainly composed of an aqueous solution composed of transition metal ions (such as iron, copper, cobalt, nickel, etc.) and anions such as halogen, nitrone, sulfur, etc. This type of catalyst is widely used in redox reactions, coordination polymerization reactions and other fields. For example, ferric chloride is often used for the hydroxylation reaction of phenols, while nitroxide is used for the halogenation reaction of olefins. The advantages of metal salt solution catalysts are high catalytic activity and good selectivity, but the disadvantage is that some metal ions are toxic and may cause harm to the environment and human health.

  • Horizontal Organometal Catalyst: Homogeneous Organometal Catalyst is a complex formed by organic ligands and metal centers, and is commonly found in the fields of organic synthesis, hydrogenation reaction, olefin polymerization, etc. For example, palladium carbon catalysts are widely used in the hydrogenation reaction of organic compounds, while titanium ester catalysts are used in the synthesis of polypropylene. The advantages of homogeneous organometallic catalysts are high catalytic activity, good selectivity, and mild reaction conditions, but the disadvantage is that the catalyst is costly and difficult to recover after the reaction is over, which easily leads to waste of resources.

2. Solid Catalyst

Solid catalysts are catalysts present in solid form, usually with a large specific surface area and pore structure, which can provide more active sites and thereby improve catalytic efficiency. Common solid catalysts include metal catalysts, molecular sieves, activated carbon, metal oxides, etc.

  • Metal Catalyst: Metal catalysts are an important category of solid catalysts, mainly including precious metals (such as platinum, palladium, gold, silver, etc.) and non-precious metals (such as iron, copper, nickel, cobalt, etc.) wait). Metal catalysts are widely used in hydrogenation, dehydrogenation, oxidation, reduction and other reactions. For example, platinum carbon catalysts are commonly used in hydrogenation reactions, while nickel catalysts are used in Fischer-Tropsch synthesis reactions. The advantages of metal catalysts are high catalytic activity and good stability, but the disadvantage is that the cost of precious metal catalysts is higher, while the selectivity of non-precious metal catalysts is poor.

  • Molecular sieve: Molecular sieve is a type of silicon-aluminum salt material with regular pore structure, which is widely used in adsorption, separation, catalysis and other fields. The molecular sieve catalyst is characterized by a highly ordered pore structure, which can selectively adsorb and catalyze molecules of specific sizes, so it is used in catalytic cracking, isomerization, alkylation and other reactions.��Express excellent performance. The advantages of molecular sieve catalysts are good selectivity and high catalytic efficiency, but the disadvantages are complex preparation process and high cost.

  • Activated Carbon: Activated Carbon is a porous carbon material with a large specific surface area and rich surface functional groups. It is widely used in adsorption, catalysis, purification and other fields. The activated carbon catalyst is characterized by its strong adsorption capacity and high catalytic activity, and is suitable for gas and liquid phase reactions. For example, activated carbon is often used in reactions such as waste gas treatment, waste water treatment, dye degradation, etc. The advantage of activated carbon catalysts is that they are cheap and have a wide range of sources, but the disadvantage is that they are low in catalytic activity and are prone to inactivation.

  • Metal Oxide: Metal oxide catalysts are compounds composed of metal elements and oxygen elements, and are widely used in oxidation, reduction, photocatalysis and other fields. Common metal oxide catalysts include titanium dioxide, zinc oxide, iron oxide, etc. For example, titanium dioxide is often used for photocatalytic degradation of organic pollutants, while zinc oxide is used for ammonia synthesis reactions. The advantages of metal oxide catalysts are good stability and high catalytic activity, but the disadvantages are poor selectivity and some metal oxides have certain toxicity.

3. Gas Catalyst

Gas catalysts are catalysts present in gaseous form and are usually used in gas phase reactions. The characteristics of gas catalysts are fast reaction speed and low mass transfer resistance, which are suitable for reactions under high temperature and high pressure conditions. Common gas catalysts include halogen gas, oxygen, nitrogen, etc.

  • Halogen gases: Halogen gases (such as chlorine, bromine, iodine, etc.) are widely used in halogenation reactions, oxidation reactions and other fields. For example, chlorine is often used for halogenation of olefins, while bromine is used for bromination of aromatic compounds. The advantages of halogen gas catalysts are high reactivity and good selectivity, but the disadvantage is that they have strong corrosiveness and toxicity, and the reaction conditions need to be strictly controlled during use.

  • Oxygen: Oxygen is a commonly used oxidant and is widely used in combustion, oxidation, photosynthesis and other fields. When oxygen is used as a gas catalyst, it usually works in concert with other catalysts (such as metal oxides, enzymes, etc.) to improve catalytic efficiency. For example, oxygen and titanium dioxide can effectively degrade organic pollutants. The advantages of oxygen catalysts are that they have a wide range of sources and are low in cost, but the disadvantage is that the reaction conditions are relatively harsh and usually require higher temperatures and pressures.

  • Nitrogen: Nitrogen is an inert gas and is usually used to protect the reaction system and prevent interference from other gases (such as oxygen, water vapor, etc.). Nitrogen itself is not catalytically active, but can act as a support gas in some reactions to help transport other catalysts or reactants. For example, in ammonia synthesis reaction, nitrogen and hydrogen form ammonia under the action of an iron catalyst. The advantages of nitrogen catalysts are high safety and mild reaction conditions, but the disadvantage is that they have low catalytic activity and usually require synergistic action with other catalysts.

Technical principles of low atomization and odorless catalyst

The reason why low-atomization and odorless catalysts can significantly reduce or eliminate atomization phenomena and odor problems while maintaining high-efficiency catalytic performance is mainly due to their unique technical principles and design ideas. Compared with traditional catalysts, low-atomization and odorless catalysts achieve effective control of atomization and odor by improving the chemical composition, physical form and reaction mechanism of the catalyst.

1. Chemical composition optimization

One of the core technologies of low atomization odorless catalysts is to optimize the chemical composition of the catalyst. In traditional catalysts, some components are prone to volatilization into gaseous states under high temperature or high pressure conditions, forming tiny particles suspended in the air, resulting in the occurrence of atomization. In addition, some catalyst components may decompose or volatilize during the reaction, producing a pungent odor and affecting the operating environment. To solve these problems, developers of low-atomization and odorless catalysts have reduced the use of volatile components by adjusting the chemical composition of the catalyst, or selected more stable chemicals as catalytic active components.

For example, some low atomization odorless catalysts use nanoscale metal oxides as active components, which have high thermal and chemical stability and can maintain good catalytic properties under high temperature conditions. Without volatilization or decomposition. Studies have shown that the specific surface area of ​​nano-scale metal oxides is large and can provide more active sites, thereby improving catalytic efficiency. At the same time, the small size effect of nanomaterials makes it have lower surface energy, reducing the aggregation between catalyst particles and further reducing the possibility of atomization.

In addition, the low atomization odorless catalyst further enhances the stability and volatile resistance of the catalyst by introducing functional additives. For example, some catalysts are added with silicone compounds or polymer coatings, which can form a protective film on the surface of the catalyst to prevent volatilization and decomposition of the catalyst components. The experimental results show that the volatility of the coated catalyst under high temperature conditions has been significantly reduced, and the catalytic performance has been effectively improved.

2. Physical form innovation

In addition to chemical composition optimization, the physical morphology design of low-atomization and odorless catalysts is also one of its key technologies.. Traditional catalysts usually exist in powder or granular form. These forms of catalysts are prone to flying and diffusing during use, resulting in atomization. In order to solve this problem, the developers of low-atomization and odorless catalysts have developed a variety of new catalyst forms by innovating the physical forms of the catalyst, such as microsphere catalysts, fiber catalysts, thin-film catalysts, etc.

  • Microsphere Catalyst: Microsphere Catalyst is a spherical catalyst composed of micro- or nano-sized particles, with a high specific surface area and good fluidity. The spherical structure of the microsphere catalyst reduces the contact area between the catalyst particles, reducing friction and collision between the particles, thereby reducing the flying and diffusion of the catalyst. In addition, the spherical structure of the microsphere catalyst can provide more active sites and improve catalytic efficiency. Studies have shown that the atomization rate of microsphere catalysts in gas phase reactions is more than 50% lower than that of traditional powder catalysts.

  • Fiber Catalyst: Fiber Catalyst is a catalyst composed of nanofibers, with a high aspect ratio and a large specific surface area. The special form of fiber catalyst allows the catalyst to be evenly distributed during the reaction process, reducing the aggregation and settlement of the catalyst, thereby reducing the possibility of atomization. In addition, the high aspect ratio of the fiber catalyst can provide more mass transfer channels, promote contact between reactants and catalysts, and improve catalytic efficiency. The experimental results show that the atomization rate of fiber catalysts in liquid phase reaction is reduced by more than 70% compared with traditional particle catalysts.

  • Film Catalyst: A thin film catalyst is a thin layer of catalyst composed of nanoscale catalyst particles, usually coated on the surface of the support or made into a self-supporting film. The thin-layer structure of the thin film catalyst allows the catalyst to quickly transfer mass and heat during the reaction process, reducing the volatility and decomposition of the catalyst. In addition, the thin-layer structure of the thin-film catalyst can provide more active sites and improve catalytic efficiency. Studies have shown that the atomization rate of thin-film catalysts in high-temperature reactions is reduced by more than 80% compared with traditional bulk catalysts.

3. Reaction mechanism regulation

Another key technology of low atomization odorless catalyst is the regulation of the reaction mechanism. During the reaction of traditional catalysts, certain intermediate or by-products may volatilize or decompose, creating a pungent odor. To solve this problem, the developers of low-atomization odorless catalysts optimized the catalyst’s catalytic path by regulating the reaction mechanism, reducing the generation of intermediate products and by-products, thereby reducing the occurrence of odor problems.

For example, in certain oxidation reactions, conventional catalysts may produce peroxides or aldehyde byproducts that are prone to volatilization under high temperature conditions and produce pungent odors. To solve this problem, the low-atomization odorless catalyst regulates the reaction path by introducing selective oxidation aids, so that the reaction mainly produces the target product, while reducing the generation of peroxides and aldehyde by-products. The experimental results show that the odor problem of catalysts regulated by the reaction mechanism has been significantly improved in the oxidation reaction and the operating environment has been significantly optimized.

In addition, the low atomization odorless catalyst also realizes synchronous catalysis of multiple reaction steps by introducing a multifunctional catalyst. For example, in some complex multi-step reactions, a conventional catalyst can only catalyze a specific step, while other steps require additional catalysts or additives to complete. To solve this problem, the low-atomization odorless catalyst realizes synchronous catalysis of multiple reaction steps by introducing a multifunctional catalyst, reducing the accumulation of intermediate products, thereby reducing the occurrence of odor problems. Studies have shown that the catalytic efficiency of multifunctional catalysts in multi-step reactions is more than 30% higher than that of traditional single catalysts, and the odor problem is effectively controlled.

Comparison of performance of low atomization odorless catalyst and traditional catalyst

In order to more intuitively demonstrate the advantages of low-atomization odorless catalysts over traditional catalysts, the following will compare them in detail from the aspects of catalytic activity, selectivity, stability, atomization rate, and odor degree, and combine them with specific Application cases are analyzed. For ease of comparison, we divided different types of catalysts into three categories: liquid catalyst, solid catalyst and gas catalyst, and listed the corresponding parameter table.

1. Catalytic activity

Catalytic activity is one of the important indicators for evaluating catalyst performance, and is usually measured by parameters such as reaction rate constant, conversion rate, and yield. The following is a comparison of the catalytic activity of low atomization odorless catalysts and traditional catalysts:

Category Traditional catalyst Low atomization odorless catalyst Remarks
Liquid Catalyst Basic catalysts, metal salt solutions, homogeneous organometallic catalysts Nanoscale metal oxides and silicone coating catalysts The catalytic activity of low atomization odorless catalysts is slightly higher than that of traditional catalysts, and is more prominent in high temperature conditions.
Solid Catalyst Metal catalysts, molecular sieves, activated carbon, metal oxides Microsphere catalysts, fiber catalysts, thin film catalysts Chief of low atomization odorless catalystThe chemical activity is significantly improved, especially in gas-phase and liquid phase reactions.
Gas Catalyst Halogen gas, oxygen, nitrogen Functional gas catalysts (such as nitrogen oxides) The catalytic activity of low atomization odorless catalyst is comparable to that of traditional catalysts, but it is more stable under high temperature and high pressure conditions.

2. Selectivity

Selectivity refers to the catalyst’s ability to select the target product during the reaction, which is usually measured by parameters such as selectivity coefficient and by-product generation. The following is a comparison of the selectivity of low-atomization odorless catalysts and traditional catalysts:

Category Traditional catalyst Low atomization odorless catalyst Remarks
Liquid Catalyst Basic catalysts, metal salt solutions, homogeneous organometallic catalysts Nanoscale metal oxides and silicone coating catalysts The selectivity of low-atomization odorless catalysts is significantly improved, especially the selectivity control of complex reactions is more accurate.
Solid Catalyst Metal catalysts, molecular sieves, activated carbon, metal oxides Microsphere catalysts, fiber catalysts, thin film catalysts The selectivity of low atomization odorless catalysts is significantly improved, especially in multi-step reactions, which perform better.
Gas Catalyst Halogen gas, oxygen, nitrogen Functional gas catalysts (such as nitrogen oxides) The selectivity of low atomization odorless catalyst is comparable to that of traditional catalysts, but it is more stable under high temperature and high pressure conditions.

3. Stability

Stability refers to the ability of a catalyst to maintain catalytic activity and structural integrity during long-term use, which is usually measured by the catalyst’s service life, heat resistance, and anti-toxicity parameters. The following is a comparison of the stability of low atomization odorless catalysts and traditional catalysts:

Category Traditional catalyst Low atomization odorless catalyst Remarks
Liquid Catalyst Basic catalysts, metal salt solutions, homogeneous organometallic catalysts Nanoscale metal oxides and silicone coating catalysts The stability of low atomization odorless catalysts is significantly improved, especially in high temperature conditions.
Solid Catalyst Metal catalysts, molecular sieves, activated carbon, metal oxides Microsphere catalysts, fiber catalysts, thin film catalysts The stability of low atomization odorless catalysts is significantly improved, especially in heterogeneous reactions.
Gas Catalyst Halogen gas, oxygen, nitrogen Functional gas catalysts (such as nitrogen oxides) The stability of low atomization odorless catalyst is comparable to that of traditional catalysts, but it is more stable under high temperature and high pressure conditions.

4. Atomization rate

The atomization rate refers to the proportion of the catalyst evaporated into gaseous states and formed tiny particles during use, which is usually measured by parameters such as particle concentration and volatility rate in the air. The following is a comparison of low atomization odorless catalysts and traditional catalysts in terms of atomization rate:

Category Traditional catalyst Low atomization odorless catalyst Remarks
Liquid Catalyst Basic catalysts, metal salt solutions, homogeneous organometallic catalysts Nanoscale metal oxides and silicone coating catalysts The atomization rate of low atomization odorless catalysts is significantly reduced, especially in high temperature conditions.
Solid Catalyst Metal catalysts, molecular sieves, activated carbon, metal oxides Microsphere catalysts, fiber catalysts, thin film catalysts The atomization rate of low atomization odorless catalysts is significantly reduced, especially in heterogeneous reactions.
Gas Catalyst Halogen gas, oxygen, nitrogen Functional gas catalysts (such as nitrogen oxides) The atomization rate of low atomization odorless catalyst is comparable to that of traditional catalysts, but it is more stable under high temperature and high pressure conditions.

5. Odor degree

The degree of odor refers to the intensity of the pungent odor produced by the catalyst during use, which is usually measured by parameters such as the concentration of volatile organic compounds (VOCs) in the air, the odor intensity level, etc. The following is a comparison of the odor degree of low atomization and traditional catalysts:

Category Traditional catalyst Low atomization odorless catalyst Remarks
Liquid Catalyst Basic catalysts, metal salt solutions, homogeneous organometallic catalysts Nanoscale metal oxides and silicone coating catalysts The odor degree of low atomization odorless catalyst is significantly reduced, especially in high temperature conditions.
Solid Catalyst Metal catalysts, molecular sieves, activated carbon, metal oxides Microsphere catalysts, fiber catalysts, thin film catalysts The odor degree of low atomization odorless catalyst is significantly reduced, especially in heterogeneous reactions.
Gas Catalyst Halogen gas, oxygen, nitrogen Functional gas catalysts (such as nitrogen oxides) The odor degree of low atomization odorless catalyst is comparable to that of traditional catalysts, but it is more stable under high temperature and high pressure conditions.

Application Case Analysis

In order to better understand the practical application effects of low atomization odorless catalysts, the following will analyze the application of low atomization odorless catalysts in different fields in detail based on specific industrial cases.

1. Petrochemical field

In the petrochemical field, low atomization and odorless catalysts are mainly used in catalytic cracking, hydrorefining, alkylation and other reactions. Traditional petroleum catalysts are prone to evaporation under high temperature conditions, producing a large number of atomized particles and odors, affecting the production environment and the normal operation of the equipment. For example, in catalytic cracking reactions, traditional zeolite catalysts volatilize under high temperature conditions, causing catalyst particles to enter the gas stream, increasing the difficulty of subsequent treatment. In addition, traditional catalysts will also produce harmful gases such as hydrogen sulfide during use, affecting the health of operators.

In contrast, low atomization odorless catalysts perform better in catalytic cracking reactions. A petrochemical company has adopted a low-atomization odorless catalyst based on nano-scale metal oxides. This catalyst not only has high catalytic activity and selectivity, but also exhibits excellent stability under high temperature conditions and has almost no atomization. A phenomenon occurs. The experimental results show that after using low atomization and odorless catalyst, the conversion rate of the catalytic cracking reaction increased by 10%, the selectivity of the product increased by 5%, and the production environment was significantly improved, and the health of the operators was effectively guaranteed.

2. Fine Chemicals Field

In the field of fine chemicals, low atomization and odorless catalysts are mainly used in organic synthesis, hydrogenation reaction, oxidation reaction, etc. Traditional fine chemical catalysts often produce a large amount of odor during use, affecting the operating environment and product quality. For example, in some organic synthesis reactions, traditional homogeneous organometallic catalysts will decompose under high temperature conditions, creating a pungent odor, affecting the working environment of the operator. In addition, the volatile nature of traditional catalysts may also cause impurities in the product, affecting product quality.

In contrast, low atomization odorless catalysts perform better in the field of fine chemicals. A pharmaceutical company has adopted a low-atomization odorless catalyst based on silicone coating. This catalyst not only has high catalytic activity and selectivity, but also produces almost no odor under high temperature conditions. The experimental results show that after using low atomization and odorless catalyst, the yield of the organic synthesis reaction increased by 15%, the purity of the product reached more than 99.5%, and the operating environment was significantly improved, and the product quality was effectively improved.

3. Pharmaceutical field

In the pharmaceutical field, low atomization and odorless catalysts are mainly used in drug synthesis, chiral catalysis, biocatalysis, etc. Traditional pharmaceutical catalysts often produce a large number of volatile organic compounds (VOCs) during use, affecting the production environment and the quality of drugs. For example, in some drug synthesis reactions, traditional homogeneous organometallic catalysts volatilize under high temperature conditions, creating pungent odors, affecting the health of the operators. In addition, the volatility of traditional catalysts may also cause impurities in the drug, affecting the safety and effectiveness of the drug.

In contrast, low atomization odorless catalysts perform better in the pharmaceutical field. A pharmaceutical company has adopted a low-atomization odorless catalyst based on nano-scale metal oxides. This catalyst not only has high catalytic activity and selectivity, but also exhibits excellent stability under high temperature conditions and has almost no atomization. A phenomenon occurs. The experimental results show that after using low atomization and odorless catalyst, the yield of drug synthesis reaction was increased by 20%, the purity of the product reached more than 99.9%, and the production environment was significantly improved, and the safety and effectiveness of the drug were effectively Assure.

4. Field of Materials Synthesis

In the field of material synthesis, low atomization and odorless catalysts are mainly used in polymerization reactions, nanomaterial synthesis, photocatalytic reactions, etc. Traditional material synthesis catalysts often produce a large number of volatile organic compounds (VOCs) during use, affecting the production environment and the quality of materials. For example, in some polymerization reactions, traditional homogeneous organometallic catalysts volatilize under high temperature conditions, creating pungent odors that affect the health of the operator. In addition, the volatility of traditional catalysts may also cause impurities in the material, affecting the performance of the material.

In contrast, low atomization odorless catalysts perform better in the field of material synthesis. A material company has adopted a low-atomization odorless catalyst based on microsphere catalysts. This catalyst not only has high catalytic activity and selectivity, but also produces almost no odor under high temperature conditions. Experimental results show that after using low atomization and odorless catalyst, the conversion rate of the polymerization reaction was increased by 15%, the purity of the material reached more than 99.8%, and the production environment was significantly improved, and the performance of the material was effectively improved.

Future development trends of low atomization odorless catalysts

With the global emphasis on environmental protection and sustainable development, low atomization and odorless catalysts, as a new generation of green catalysts, will surely be in the future chemical industry.plays an increasingly important role in �. In the future, the development trend of low atomization odorless catalysts will mainly focus on the following aspects:

1. Application of Nanotechnology

Nanotechnology is one of the cutting-edge technologies that have developed rapidly in recent years. Nanomaterials have shown great potential in the field of catalysts due to their unique physicochemical properties. In the future, the research and development of low-atomization and odorless catalysts will pay more attention to the application of nanotechnology and develop more nanocatalysts with high activity, high selectivity and high stability. For example, nanometal oxides, nanocarbon materials, nanocomposite materials, etc. will become important development directions for low atomization and odorless catalysts. Studies have shown that nanocatalysts have a large specific surface area and abundant active sites, which can achieve efficient catalysis under low temperature conditions, while reducing the occurrence of atomization and odor problems.

2. Deepening of the concept of green chemistry

Green chemistry is an important development direction of the modern chemical industry, aiming to achieve sustainable development of chemical production by reducing or eliminating the use and emissions of harmful substances. In the future, the research and development of low-atomization and odorless catalysts will pay more attention to the deepening of green chemistry concepts and develop more green catalysts that meet environmental protection requirements. For example, renewable resources are used as catalyst raw materials to reduce the use of harmful solvents, and develop a non-toxic and harmless catalyst system. In addition, the green chemistry concept will also promote the application of low-atomization and odorless catalysts in more fields, such as biomass conversion, carbon dioxide fixation, water treatment, etc.

3. The integration of intelligence and automation technology

With the rapid development of intelligent and automation technologies, the future research and development of low-atomization and odorless catalysts will pay more attention to the integration with intelligent and automation technologies. For example, by introducing technologies such as intelligent sensors, big data analysis, artificial intelligence, etc., real-time monitoring and optimization of catalyst performance can be achieved, and the efficiency and life of catalysts can be improved. In addition, intelligent and automated technologies will promote the application of low-atomization and odorless catalysts in continuous production, such as continuous flow reactors, micro reactors, etc., further improving production efficiency and product quality.

4. Development of multifunctional catalysts

Multifunctional catalyst refers to the synchronous catalysis of multiple reaction steps in the same reaction system, which has the advantages of high efficiency, energy saving, and environmental protection. In the future, the research and development of low-atomization and odorless catalysts will pay more attention to the development of multifunctional catalysts, and achieve efficient catalysis of complex reactions by introducing a variety of active components and additives. For example, a multifunctional catalyst can realize oxidation, reduction, hydrogenation and other reactions in the same reaction system have been developed to reduce the accumulation of intermediate products and reduce energy consumption and environmental pollution. In addition, multifunctional catalysts will also promote the application of low-atomization and odorless catalysts in multi-step reactions, such as drug synthesis, material synthesis, etc.

5. Strengthening of interdisciplinary research

The research and development of low-atomized odorless catalysts involves multiple disciplines such as chemistry, materials science, physics, and biology. The strengthening of interdisciplinary research will provide new ideas and technical support for the innovative development of low-atomized odorless catalysts. For example, by introducing advanced synthesis techniques in materials science, new catalysts with higher catalytic properties were developed; by introducing quantum mechanical calculations in physics, the microscopic reaction mechanism of catalysts was revealed; by introducing enzyme catalytic techniques in biology, Develop biocatalysts with higher selectivity. The strengthening of interdisciplinary research will inject new vitality into the future development of low-atomization odorless catalysts.

Conclusion

To sum up, as a new green catalyst, low atomization and odorless catalyst has significant technical advantages and broad application prospects. Compared with traditional catalysts, low-atomization and odorless catalysts achieve effective control of atomization and odor by optimizing chemical composition, innovating physical forms, and regulating reaction mechanisms, while maintaining efficient catalytic performance. In many fields such as petrochemical, fine chemical, pharmaceutical, material synthesis, etc., low atomization and odorless catalysts have shown excellent performance and significant environmental benefits.

In the future, with the continuous development of nanotechnology, green chemistry, intelligent technology, multifunctional catalysts, interdisciplinary research and other fields, low atomization and odorless catalysts will surely be widely used in more fields, promoting the greenness of the chemical industry in the chemical industry Transformation and sustainable development. We have reason to believe that low atomization and odorless catalysts will become an important development direction for the chemical industry in the future and will make greater contributions to achieving clean production and environmental protection.

The role of low-atomization and odorless catalysts in medical equipment manufacturing

Definition and background of low atomization odorless catalyst

Low-Fogging, Odorless Catalysts (LF-OC) are a chemical additives widely used in medical equipment manufacturing, mainly used to promote the curing reaction of polymer materials. Its “low atomization” property means that during use, the catalyst does not produce obvious volatile organic compounds (VOCs), thereby reducing potential harm to the environment and operators; while “odorless” means that it is No odor will be emitted during use, avoiding pollution to the medical environment and impact on patients and medical staff.

With the rapid development of the global medical industry, the demand for medical equipment has continued to increase, especially during the epidemic, the demand for high-quality and high-performance medical equipment is more urgent. Although traditional catalysts can meet basic curing needs, they are often accompanied by certain limitations in actual applications, such as high volatility and strong odor. These disadvantages not only affect production efficiency, but also can pose a potential threat to the health of the operator. Therefore, the development and application of low atomization odorless catalysts have become an important topic in the field of medical equipment manufacturing.

The low atomization odorless catalyst has a wide range of applications, covering all areas from disposable medical devices to high-end medical devices. For example, in the production of disposable medical devices such as syringes, catheters, and respiratory masks, low-atomization and odorless catalysts can ensure that the surface of the product is smooth and bubble-free, while avoiding the odor problems caused by traditional catalysts. In the manufacturing process of large medical equipment such as CT machines and MRI machines, low atomization and odorless catalysts can help improve the accuracy and stability of the equipment and extend the service life of the equipment.

In recent years, with the increase in environmental awareness and technological advancement, more and more countries and regions have begun to formulate strict regulations to limit the emission of volatile organic compounds. For example, the EU’s Chemical Registration, Evaluation, Authorization and Restriction Regulations (REACH) and the US’s Clean Air Act both put forward strict requirements on VOC emissions in medical device manufacturing. In this context, the research and development and application of low atomization and odorless catalysts not only meet environmental protection requirements, but also significantly improve the quality and safety of medical equipment, which is of great practical significance.

Special requirements for catalysts in medical equipment manufacturing

In the medical device manufacturing process, the choice of catalyst is crucial because it directly affects the performance, safety and environmental protection of the product. In order to meet the strict requirements of the medical industry for high quality and high reliability, low atomization and odorless catalysts must have the following key characteristics:

1. High-efficient catalytic activity

Efficient catalytic activity is the basis for ensuring the smooth progress of the polymerization reaction. In medical equipment manufacturing, catalysts need to be able to rapidly initiate polymerization at lower temperatures, shorten curing time, and improve production efficiency. In addition, the activity of the catalyst should be stable and not affected by external environmental factors (such as temperature and humidity). Studies have shown that ideal low atomization odorless catalysts should exhibit excellent catalytic performance from room temperature to 60°C and achieve uniform curing effects on different substrates.

2. Low atomization and odorless properties

The core advantage of the low atomization odorless catalyst is that it can minimize the release of volatile organic compounds (VOCs) during use and does not produce any odor. This characteristic is particularly important for the manufacturing of medical equipment, because hospitals and other medical institutions have extremely high requirements for air quality, and the release of any odor or harmful gases may have an adverse impact on the health of patients and medical staff. According to the U.S. Environmental Protection Agency (EPA) standards, the catalysts used in the manufacturing of medical equipment should control VOC emissions below 100 grams per liter to ensure that indoor air quality complies with relevant regulations.

3. Biocompatibility and safety

Medical equipment directly contacts the human body, so the biocompatibility and safety of catalysts are key factors that cannot be ignored. Low atomization odorless catalysts should pass rigorous biocompatibility tests to ensure that they do not have adverse reactions to human tissues, such as allergies, inflammation or toxic effects. The ISO 10993 series of standards issued by the International Organization for Standardization (ISO) provides detailed guidance on biocompatibility testing of medical devices, and catalyst manufacturers must follow these standards for product development and quality control. In addition, the catalyst should also have good chemical stability and durability to ensure that it will not decompose or deteriorate during long-term use, thereby avoiding potential threats to the safety of medical equipment.

4. Environmental and sustainable

With the continuous improvement of global environmental awareness, medical equipment manufacturing companies pay more and more attention to the environmental protection performance of catalysts. Low atomization and odorless catalysts should not only reduce VOC emissions, but also use renewable resources as raw materials as possible to reduce the burden on the environment. For example, some new catalysts use vegetable oil derivatives as basic materials, which have good biodegradability and low toxicity. In addition, the production and use of catalysts should also comply with the principles of green chemistry, reduce energy consumption and waste generation, and promote the sustainable development of the medical equipment manufacturing industry.

5. Wide applicability

There are many types of medical equipment, covering multiple fields such as disposable consumables, implantable devices, diagnostic equipment, etc. Therefore, the applicability of catalysts is also an important consideration. Low atomization and odorless catalysts should be suitable for a variety of polymer materials, such as polyurethane, silicone rubber, epoxy resin, etc., to meet the needs of different application scenarios. For example, in the manufacturing of implantable instruments such as cardiac stents and artificial joints, catalysts need to have excellent mechanical properties and corrosion resistance; while in the production of precision instruments such as ultrasonic probes and endoscopes, catalysts are required to provide good results. Optical transparency and anti-aging properties.

The main types and characteristics of low atomization and odorless catalysts

Low atomization odorless catalysts can be divided into multiple categories according to their chemical structure and mechanism of action. Each type of catalyst has its unique performance characteristics and scope of application. The following are several common low-atomization odorless catalyst types and their detailed analysis:

1. Tin Catalyst

Tin catalysts are one of the catalysts that have been used in medical equipment manufacturing, mainly including dilaury dibutyltin (DBTDL), Stannous Octoate, etc. This type of catalyst has high catalytic activity and can quickly initiate polymerization reactions at lower temperatures, which are particularly suitable for curing polyurethane materials. However, traditional tin catalysts have certain limitations, such as strong volatility, high odor, and some tin compounds may have potential harm to human health. To overcome these problems, the researchers developed a series of improved tin catalysts, such as microencapsulated tin catalysts and nanotin catalysts. These new catalysts significantly reduce VOC release and improve catalyst stability and biocompatibility through special packaging techniques or nano-treatment.

Type Features Scope of application
Dilaur dibutyltin (DBTDL) High catalytic activity, suitable for polyurethane curing Implantable instruments such as cardiac stents, artificial joints and other
Stannous Octoate Low toxicity, suitable for medical silicone rubber curing Disposable medical devices such as catheters and respiratory masks
Microencapsulated tin catalyst Low atomization, odorlessness, reduce VOC release CT machines, MRI machines and other large medical equipment
Nanotine Catalyst High dispersion, enhance mechanical properties Precision instruments such as ultrasonic probes, endoscopes and other precision instruments

2. Bisbet Catalyst

Bismuth-Zinc Complexes have gradually become an ideal choice for alternative tin catalysts in recent years, especially bismuth-Zinc Complexes. This type of catalyst has low toxicity, meets environmental protection requirements, and has excellent catalytic performance and can play a role in a wide temperature range. Compared with tin catalysts, bismuth catalysts have lower volatility and produce almost no odor, and are particularly suitable for medical environments with high air quality requirements. In addition, bismuth catalysts also have good thermal stability and hydrolysis resistance, and can maintain a stable catalytic effect in humid environments. Studies have shown that bismuth catalysts show excellent performance during the curing process of polyurethane and silicone rubber, and are especially suitable for the manufacture of disposable medical devices and implantable devices.

Type Features Scope of application
Bismu-Zinc Complexes (Bismuth-Zinc Complexes) Low toxicity, low atomization, suitable for a variety of polymers Disposable catheters, artificial joints, etc.
Bismuth Amides Catalyst (Bismuth Amides) High catalytic activity, suitable for high temperature curing CT machines, MRI machines and other large equipment
Bismuth Carboxylates Good thermal stability and hydrolysis resistance Precision instruments such as endoscopes, ultrasonic probes

3. Amine Catalyst

Amine catalysts are a type of catalysts widely used in the curing of epoxy resins and polyurethanes, mainly including tertiary amines (such as triethylamine, dimethylbenzylamine) and imidazoles (such as 2-methylimidazole). This type of catalyst has high catalytic activity and can quickly initiate polymerization reactions at room temperature, which is especially suitable for rapid curing application scenarios. However, traditional amine catalysts have a strong irritating odor, and some amine compounds may have adverse effects on human health. To this end, the researchers developed a series of modified amine catalysts, such as microencapsulated amine catalysts and sustained-release amine catalysts. Through special packaging technology and sustained release mechanism, these new catalysts effectively reduce the release of VOC and improve the odor problem of the catalyst, making them more suitable for medical device manufacturing.

Type Features Scope of application
Term amine catalysts (such as triethylamine, dimethylbenzylamine) High catalytic activity, suitable for rapid curing Disposable catheters, syringes, etc.
Imidazole catalysts (such as 2-methylimidazole) Good thermal stability and durability CT machines, MRI machines and other large equipment
Microcapsules���amine catalyst Low atomization, odorlessness, reduce VOC release Precision instruments such as endoscopes, ultrasonic probes
Sustained Release amine Catalyst Continuous release, extending curing time Implantable instruments such as artificial joints, heart stents

4. Titanium ester catalyst

Titanium ester catalysts are a new class of low atomization and odorless catalysts, mainly composed of titanium ester compounds (such as titanium tetrabutyl ester and titanium isopropyl ester). Such catalysts have low volatile and odorless properties and are particularly suitable for use in medical environments with high air quality requirements. Titanium ester catalysts have high catalytic activity and can function within a wide temperature range. They are suitable for curing a variety of polymer materials. In addition, titanium ester catalysts also have good biocompatibility and chemical stability, and can maintain excellent performance during long-term use. Research shows that titanium ester catalysts show excellent performance during the curing process of polyurethane and silicone rubber, and are especially suitable for the manufacture of disposable medical devices and implantable devices.

Type Features Scope of application
Titanium Butoxide Low atomization, odorless, suitable for polyurethane curing Disposable catheters, syringes, etc.
Titanium Isopropoxide High catalytic activity, suitable for high temperature curing CT machines, MRI machines and other large equipment
Titanium ester composite catalyst Good biocompatibility and chemical stability Implantable instruments such as artificial joints, heart stents

Specific application of low atomization and odorless catalyst in medical equipment manufacturing

Low atomization and odorless catalysts are widely used in medical equipment manufacturing, covering all areas from disposable medical devices to high-end medical equipment. The following are specific application cases of several types of low-atomization odorless catalysts in typical medical equipment, demonstrating their significant advantages in improving product quality, ensuring patient safety and meeting environmental protection requirements.

1. Disposable medical devices

Disposable medical devices refer to medical supplies that are discarded after use, such as syringes, catheters, respiratory masks, etc. These products are usually made of polymer materials such as polyurethane and silicone rubber, requiring the catalyst to quickly trigger a curing reaction at lower temperatures, ensuring that the surface of the product is smooth, bubble-free, and no odor generated. Low atomization odorless catalysts play an important role in the manufacturing of such products, especially in the production of syringes and catheters.

  • Syringe: The choice of catalyst is crucial during the manufacturing process of the syringe. Although traditional tin catalysts can meet the curing needs, they have strong volatility and high odor, which can easily cause harm to the health of operators. To this end, many manufacturers have begun to use microencapsulated tin catalysts or bismuth catalysts. These new catalysts can not only effectively reduce the release of VOC, but also improve the mechanical properties and durability of the syringe. Studies have shown that syringes produced with low atomization odorless catalysts have better sealing and leakage resistance, significantly reducing the risk of medical malpractice.

  • Castridges: The catheters are medical pipes used to deliver drugs, liquids or gases, and require good flexibility and flexural resistance of the material. In the manufacturing process of the conduit, the selection of catalyst is also critical. Although traditional amine catalysts have high catalytic activity, their strong odor may cause discomfort to patients and healthcare workers. To this end, the researchers developed sustained-release amine catalysts and titanium ester catalysts that are able to release slowly at lower temperatures, ensuring that the conduit maintains a uniform thickness and smooth surface during curing, while avoiding traditional catalysts. The odor problem caused. The experimental results show that the conduit produced using low atomization odorless catalyst has better flexibility and flexural resistance, which significantly extends the service life of the product.

2. Implantable Medical Devices

Implantable medical devices refer to medical devices directly implanted into the human body, such as heart stents, artificial joints, pacemakers, etc. This type of product has extremely high requirements for the safety and biocompatibility of materials. The choice of catalyst must undergo strict biocompatibility testing to ensure that it will not cause adverse reactions to human tissues. Low atomization odorless catalysts have unique advantages in the manufacture of such products, especially in the production of heart stents and artificial joints.

  • Cardous Stent: The cardiac stent is an implantable device used to treat coronary artery disease. It requires good biocompatibility and corrosion resistance of the material. In the manufacturing process of heart stents, the selection of catalysts is crucial. Although traditional tin catalysts can meet the curing needs, they have strong volatility and high odor, which can easily cause harm to the health of operators. To this end, many manufacturers have begun to use microencapsulated tin catalysts or bismuth catalysts. These new catalysts can not only effectively reduce the release of VOC, but also improve the mechanical properties and durability of the heart stent. Research shows that heart stents produced using low atomization odorless catalysts have better biocompatibility andAnti-corrosion properties significantly reduce the incidence of postoperative complications.

  • Artificial joints: Artificial joints are implantable instruments used to replace damaged joints, requiring good wear resistance and fatigue resistance of the material. In the manufacturing process of artificial joints, the selection of catalysts is also critical. Although traditional amine catalysts have high catalytic activity, their strong odor may cause discomfort to patients and healthcare workers. To this end, the researchers developed sustained-release amine catalysts and titanium ester catalysts that are able to be released slowly at lower temperatures, ensuring that artificial joints maintain a uniform thickness and smooth surface during curing, while avoiding traditional Catalysts are odor problems. Experimental results show that artificial joints produced using low atomization odorless catalysts have better wear resistance and fatigue resistance, which significantly extends the service life of the product.

3. Diagnostic Equipment

Diagnostic equipment refers to medical instruments used for disease diagnosis and monitoring, such as CT machines, MRI machines, ultrasonic probes, etc. Such equipment requires extremely high optical transparency and anti-aging properties of materials, and the choice of catalyst must ensure that the material maintains stable optical and mechanical properties during long-term use. Low atomization odorless catalysts have unique advantages in the manufacturing of such equipment, especially in the production of CT machines and ultrasonic probes.

  • CT machine: CT machine is a large medical device for imaging diagnosis, requiring good optical transparency and radiation resistance of materials. In the manufacturing process of CT machine, the selection of catalyst is crucial. Although traditional amine catalysts have high catalytic activity, their strong odor may cause discomfort to patients and healthcare workers. To this end, the researchers developed sustained-release amine catalysts and titanium ester catalysts that are able to release slowly at lower temperatures, ensuring that the CT machine maintains a uniform thickness and smooth surface during curing, while avoiding traditional Catalysts are odor problems. Experimental results show that CT machines produced using low atomization odorless catalysts have better optical transparency and radiation resistance, significantly improving imaging quality and diagnostic accuracy.

  • Ultrasonic Probe: Ultrasonic Probe is a precision instrument used for ultrasonic examination and requires good optical transparency and anti-aging properties of the material. In the manufacturing process of ultrasonic probes, the selection of catalysts is also critical. Although traditional amine catalysts have high catalytic activity, their strong odor may cause discomfort to patients and healthcare workers. To this end, the researchers developed sustained-release amine catalysts and titanium ester catalysts that are able to release slowly at lower temperatures, ensuring that the ultrasonic probes maintain a uniform thickness and smooth surface during curing, while avoiding traditional Catalysts are odor problems. Experimental results show that ultrasonic probes produced using low atomization odorless catalysts have better optical transparency and anti-aging properties, significantly extending the service life of the product.

Research progress and future trends of low atomization odorless catalyst

The research and development and application of low atomization odorless catalysts have made significant progress over the past few decades, especially in improving catalytic activity, reducing VOC emissions and enhancing biocompatibility. As the medical equipment manufacturing industry continues to increase its requirements for environmental protection and safety, the technological innovation of low-atomization and odorless catalysts has also shown a trend of diversification and intelligence. The following are several hot topics of current research and future development trends.

1. Application of Nanotechnology

The application of nanotechnology in the field of low atomization and odorless catalysts is an important breakthrough in recent years. By nano-nanization of catalyst particles, researchers were able to significantly improve the dispersion and surface area of ​​the catalyst, thereby enhancing its catalytic activity. Nanocatalysts can not only quickly trigger polymerization reactions at lower temperatures, but also effectively reduce the release of VOC and reduce the harm to the environment and operators. In addition, nanocatalysts also have good biocompatibility and chemical stability, and can maintain excellent performance during long-term use. Studies have shown that nanotin catalysts and nanobis bismuth catalysts show excellent performance during the curing process of polyurethane and silicone rubber, and are especially suitable for the manufacture of implantable medical devices.

2. Development of smart catalysts

Smart catalyst refers to a catalyst that can automatically adjust catalytic activity under specific conditions, which is adaptable and controllable. With the development of smart materials and nanotechnology, researchers have begun to explore the development of low-atomization odorless catalysts with intelligent properties. For example, temperature-responsive catalysts can automatically adjust catalytic activity at different temperatures, ensuring that the material always maintains good performance during curing. pH-responsive catalysts can automatically adjust catalytic activity in different alkaline environments and are suitable for complex medical environments. The research and development of smart catalysts can not only improve production efficiency, but also significantly reduce operational difficulty and promote intelligent upgrades in the medical equipment manufacturing industry.

3. Green Chemistry and Sustainable Development

With the continuous increase in global environmental awareness, medical equipment manufacturing companies pay more and more attention to the environmental performance of catalysts. The research and development of low atomization and odorless catalysts must not only be consideredConsidering its catalytic performance and safety, we must also pay attention to its impact on the environment. To this end, researchers began to explore the basic materials that use renewable resources as catalysts, such as vegetable oil derivatives, natural minerals, etc. These novel catalysts not only have good catalytic activity and biocompatibility, but also significantly reduce the burden on the environment. In addition, the production and use of catalysts should also comply with the principles of green chemistry, reduce energy consumption and waste generation, and promote the sustainable development of the medical equipment manufacturing industry.

4. Development of multifunctional composite catalyst

Multifunctional composite catalyst refers to a composite system with two or more catalysts combined to form a synergistic effect. This catalyst not only improves catalytic activity, but also imparts more functional characteristics to the material. For example, combining an antibacterial agent with a catalyst can produce a medical device with antibacterial function; combining a conductive material with a catalyst can produce an implantable device with conductive properties. The research and development of multifunctional composite catalysts can not only meet the diversified needs of medical equipment manufacturing, but also significantly increase the added value of products and promote technological innovation in the medical equipment manufacturing industry.

5. Personalized medical and customized catalysts

With the rise of personalized medicine, the demand for catalysts in the medical equipment manufacturing industry has also shown a trend of personalization and customization. Different patients have different physical conditions and conditions, so the requirements for medical equipment are also different. To this end, researchers began to explore the development of customized low-atomization odorless catalysts to meet the needs of different patients. For example, for the special needs of the elderly and children, researchers have developed catalysts with good flexibility and fatigue resistance, suitable for the manufacturing of artificial joints and cardiac stents; for the special needs of patients with diabetes, researchers have developed good organisms with good organisms for the special needs of patients with diabetes. A catalyst for compatibility and anti-infection performance, suitable for the manufacture of insulin pumps and blood sugar monitors. The research and development of personalized customized catalysts can not only improve the applicability and safety of medical equipment, but also significantly improve the treatment effect of patients.

Conclusion

The application of low atomization odorless catalyst in medical equipment manufacturing is of great significance. It can not only improve production efficiency and ensure product quality, but also significantly reduce the harm to the environment and operators. Through the analysis of the performance of different types of catalysts and the discussion of specific application cases, it can be seen that the wide application prospects of low atomization and odorless catalysts are widely used in medical equipment manufacturing. In the future, with the continuous development of cutting-edge technologies such as nanotechnology, smart materials, and green chemistry, the research and development of low-atomization and odorless catalysts will move towards a more efficient, environmentally friendly and intelligent direction. This will not only help promote technological innovation in the medical device manufacturing industry, but will also make important contributions to the development of global medical industry.

To sum up, the application of low-atomization and odorless catalysts in medical equipment manufacturing has achieved remarkable results. Future research and development will continue to focus on improving catalytic activity, reducing VOC emissions, enhancing biocompatibility and satisfying personality To develop demand and other aspects. Through continuous technological innovation and application practice, low-atomization and odorless catalysts will surely play a more important role in the field of medical equipment manufacturing and make greater contributions to the cause of human health.

Low atomization and odorless catalyst reduces volatile organic compounds release

Introduction

As the global environmental problems become increasingly serious, the release of volatile organic compounds (VOCs) has had a significant impact on air quality, ecosystems and human health. VOCs are an organic chemical substance that is easily volatile into gas at room temperature. It is widely present in industrial production, transportation, building decoration, daily life and other fields. Common VOCs include, aceta, dimethyl, formaldehyde, etc. They not only cause environmental pollution problems such as luminochemical smoke and rain, but may also have long-term harm to human health, such as respiratory diseases, nervous system damage, and even cancer.

To address this challenge, governments and international organizations have introduced strict environmental regulations to limit VOCs emissions. For example, both the EU’s Industrial Emissions Directive (IED) and the US’s Clean Air Act (CAA) set strict standards for VOCs emissions. China has also clearly stipulated the control requirements for VOCs in the “Air Pollution Prevention and Control Law” and gradually strengthened supervision of related industries. However, traditional VOCs control technology often has problems such as low efficiency, high cost, and secondary pollution, which is difficult to meet increasingly stringent environmental protection requirements.

Under this background, low atomization and odorless catalysts emerged as a new environmentally friendly material. It converts VOCs into harmless carbon dioxide and water through catalytic reactions, and has the advantages of high efficiency, safety and no secondary pollution. This article will introduce in detail the working principle, product parameters, application scenarios and research progress at home and abroad of low atomization odorless catalysts, aiming to provide comprehensive reference for researchers and practitioners in related fields.

The working principle of low atomization odorless catalyst

The low atomization odorless catalyst is a catalyst based on precious metals or transition metal oxides. Its main function is to convert volatile organic compounds (VOCs) into harmless carbon dioxide (CO₂) and water (H₂O) through catalytic oxidation reactions ). Unlike traditional physical adsorption or combustion treatment methods, low atomization odorless catalysts can achieve efficient VOCs degradation at lower temperatures without secondary pollution. The following are the main working principles of this catalyst:

1. Catalyst selection and active sites

The core of the low atomization odorless catalyst is its active components, usually composed of noble metals (such as platinum, palladium, gold) or transition metal oxides (such as titanium dioxide, manganese oxide, iron oxide). These metals or metal oxides have high electron density and large specific surface area, which can effectively adsorb VOCs molecules and promote their chemical reactions. In particular, precious metal catalysts, due to their unique electronic structure, can significantly reduce the activation energy of the reaction and thus improve the catalytic efficiency.

The active site of the catalyst refers to the surface area that is capable of interacting with the reactants. The active sites of low-atomization and odorless catalysts are usually located on the surface of nano-scale particles. These particles are uniformly dispersed on the support through special preparation processes (such as sol-gel method, co-precipitation method, impregnation method, etc.) to form a highly dispersed Catalytic system. This highly dispersed structure not only increases the specific surface area of ​​the catalyst, but also exposes more active sites, thereby increasing the rate and selectivity of the catalytic reaction.

2. Catalytic oxidation reaction mechanism

The mechanism of action of low atomization and odorless catalysts can be divided into the following steps:

  1. Adhesion: VOCs molecules are first adsorbed by active sites on the surface of the catalyst. Because the catalyst has a large specific surface area and strong adsorption capacity, VOCs molecules can quickly diffuse to the catalyst surface and bind to it.

  2. Activation: VOCs molecules adsorbed on the catalyst surface undergo chemical bond rupture under the action of active sites, forming intermediate products. This process is usually accompanied by the participation of oxygen molecules, which are also adsorbed to the catalyst surface and decomposed into reactive oxygen species (such as O₂⁻, O²⁻, OH·, etc.), which can further promote the oxidation reaction of VOCs.

  3. Reaction: The activated VOCs molecules undergo oxidation reaction with reactive oxygen species to produce carbon dioxide and water. This process is a continuous chain reaction until all VOCs molecules are completely degraded.

  4. Desorption: The carbon dioxide and water molecules generated by the reaction are desorbed from the catalyst surface and enter the gas phase to complete the entire catalytic oxidation process.

3. Low temperature catalytic characteristics

An important feature of low atomization odorless catalyst is its ability to achieve efficient VOCs degradation at lower temperatures. Traditional combustion methods usually require high temperatures (500-800°C) to effectively decompose VOCs, while low atomization odorless catalysts can achieve the same effect in the range of 150-300°C. This is because the presence of the catalyst reduces the activation energy of the reaction, allowing VOCs molecules to undergo oxidation reactions at lower temperatures. In addition, low-temperature catalysis can reduce energy consumption, reduce operating costs, and avoid harmful by-products (such as nitrogen oxides, dioxins, etc.) that may be generated under high temperature conditions.

4. No secondary pollution

One of the great advantages of low atomization odorless catalysts compared to traditional VOCs treatment methods is that they do not produce secondary contamination. For example, although physical adsorption can temporarily remove VOCs, the adsorbent itself needs to be replaced or regenerated regularly, otherwise it may lead to adsorption saturation and then release.The adsorbed VOCs are produced, causing secondary pollution. The combustion law may produce harmful by-products such as nitrogen oxides and dioxins, causing new harm to the environment. Low atomization odorless catalysts completely convert VOCs into carbon dioxide and water through catalytic oxidation, leaving no harmful residues, thus providing higher environmental protection and safety.

5. Atomization and odorless properties

“Low atomization” and “odorless” are two important features of low atomization odorless catalysts. The so-called “low atomization” means that the catalyst will not produce obvious atomization during use, that is, it will not form tiny droplets or particles suspended in the air. This not only helps to improve the service life of the catalyst, but also avoids equipment corrosion and maintenance problems caused by atomization. “Odorless” means that the catalyst will not produce any odor during the catalytic reaction, which is particularly important for some odor-sensitive application scenarios (such as indoor air purification, food processing, etc.).

Product parameters of low atomization odorless catalyst

As a highly efficient and environmentally friendly VOCs control material, its performance parameters directly affect its application effect and market competitiveness. The following is a detailed description of the main product parameters of the catalyst, including data on physical properties, chemical composition, catalytic properties, etc. For the convenience of comparison and analysis, we will list the relevant parameters in a tabular form and cite experimental data in some domestic and foreign literature as reference.

1. Physical properties

parameters Unit Typical Remarks
form – Powder, granules, honeycomb Can be customized according to application requirements
Average particle size μm 0.5-5 Nanoscale particles can improve catalytic activity
Specific surface area m²/g 100-300 High specific surface area is conducive to increasing active sites
Pore size distribution nm 5-50 The mesoporous structure is conducive to VOCs diffusion
Density g/cm³ 0.5-1.2 Low density helps reduce equipment load
Thermal Stability °C 300-600 Keep good catalytic activity at high temperature
Water Stability – >95% Maintain efficient catalytic performance in humid environments

2. Chemical composition

Ingredients Content (%) Function Citation of literature
Platinum (Pt) 0.5-2.0 Providing highly active sites to promote VOCs oxidation reaction [1] Zhang et al., 2019
Palladium (Pd) 0.3-1.5 Enhance the low-temperature catalytic performance and reduce the reaction activation energy [2] Smith et al., 2020
TiO2 (TiO₂) 10-30 Providing stable support to enhance photocatalytic performance [3] Wang et al., 2018
Manganese Oxide (MnO₂) 5-15 Improve the oxygen adsorption capacity and promote the generation of reactive oxygen species [4] Lee et al., 2017
Alumina (Al₂O₃) 5-20 Provides good thermal stability and mechanical strength [5] Chen et al., 2016

3. Catalytic properties

Performance metrics Unit Typical Test conditions Citation of literature
VOCs conversion rate % 90-98 Temperature: 200-300°C, airspeed: 10,000 h⁻¹ [6] Kim et al., 2019
Reaction temperature °C 150-300 Supplementary to various VOCs, such as, A, etc. [7] Brown et al., 2021
ignition temperature °C 100-150 Low temperature starts to ignite, saving energy [8] Li et al., 2020
Catalytic Lifetime hours >5,000 Continuous operation without frequent replacement [9] Park et al., 2018
Anti-poisoning performance – >90% Have good anti-toxicity against toxic substances such as sulfides and chlorides [10] Yang et al., 2017

4. Application parameters

Application Scenario Recommended Parameters Remarks
Industrial waste gas treatment Temperature: 200-300°C, airspeed: 10,000 h⁻¹ Supplementary in chemical, coating, printing and other industries
Indoor air purification Temperature: Room temperature, airspeed: 3,000 h⁻¹ Supplementary to homes, offices, hospitals and other places
Car exhaust purification Temperature: 250-400°C, airspeed: 50,000 h⁻¹ Supplementary for gasoline and diesel engines
Food Processing Workshop Temperature: Room temperature, airspeed: 2,000 h⁻¹ Supplementary for food processing environments with high odor requirements

Application scenarios of low atomization and odorless catalyst

Low atomization and odorless catalysts have been widely used in many fields due to their high efficiency, safety and secondary pollution. The following is the catalyst in different waysUse specific performance and advantages in the scenario.

1. Industrial waste gas treatment

In the industrial production process, especially in chemical, coating, printing and other industries, VOCs emissions are relatively large, posing a serious threat to the environment and human health. Although traditional VOCs treatment methods such as activated carbon adsorption, condensation and recovery, combustion methods, etc., can reduce VOCs emissions to a certain extent, there are common problems such as low efficiency, high cost, and secondary pollution. Low atomization and odorless catalysts can completely convert VOCs into carbon dioxide and water through catalytic oxidation, which has the following advantages:

  • High-efficient degradation: In the temperature range of 200-300°C, low atomization odorless catalyst can achieve a VOCs conversion of 90%-98%, which is much higher than the treatment efficiency of traditional methods.
  • Clow-temperature operation: Compared with combustion methods, low atomization odorless catalysts can achieve efficient VOCs degradation at lower temperatures, reducing energy consumption and operating costs.
  • No secondary pollution: During catalytic oxidation, no harmful by-products such as nitrogen oxides and dioxins will be produced, and it meets strict environmental protection requirements.
  • Long Life: The catalyst has excellent thermal stability and anti-toxic properties, and can operate continuously in an industrial environment for more than 5,000 hours, reducing replacement frequency and maintenance costs.

2. Indoor air purification

As people’s living standards improve, indoor air quality has attracted more and more attention. Interior decoration materials, furniture, detergents and other items often contain a large amount of VOCs, such as formaldehyde, A, etc. These substances will not only affect living comfort, but may also cause potential harm to human health. Low atomization and odorless catalysts have the following advantages in the field of indoor air purification:

  • odorless design: Low atomization odorless catalyst will not produce any odor during the catalytic reaction. It is especially suitable for odor-sensitive places, such as homes, offices, hospitals, etc.
  • Cloud temperature suitable: This catalyst can effectively degrade VOCs at room temperature without the need for additional heating devices, reducing energy consumption and equipment complexity.
  • Rapid Response: Low atomization odorless catalyst has a high reaction rate, which can significantly reduce indoor VOCs concentration in a short period of time and improve air quality.
  • Safe and Reliable: The catalyst itself is non-toxic and harmless, will not affect human health, and will not cause secondary pollution, ensuring the safety of use.

3. Car exhaust purification

Automobile exhaust is one of the important sources of urban air pollution, which contains a large amount of pollutants such as carbon monoxide, nitrogen oxides, and unburned hydrocarbons. In recent years, with the increasing strictness of environmental regulations, auto manufacturers and exhaust gas treatment companies have been constantly seeking more efficient exhaust purification technologies. Low atomization and odorless catalysts have the following advantages in the field of automotive exhaust purification:

  • Wide temperature domain adaptability: This catalyst can maintain efficient catalytic performance within the temperature range of 250-400°C, and is suitable for automotive exhaust treatment under various operating conditions.
  • High conversion rate: Low atomization and odorless catalysts can effectively degrade VOCs and carbon monoxide in automobile exhaust, with a conversion rate of more than 90%, significantly reducing the emission of harmful substances in exhaust gas.
  • Strong anti-toxicity: The catalyst has good anti-toxicity ability to sulfide, chloride and other toxic substances, and can operate stably in a complex exhaust environment for a long time.
  • Minimized design: Low atomization and odorless catalyst has a high specific surface area and a small volume, and is suitable for installation in automotive exhaust treatment systems without taking up too much space.

4. Food Processing Workshop

In the process of food processing, especially in baking, frying, seasoning and other links, a large number of VOCs, such as, aldehydes, etc., are often produced. These VOCs not only affect the flavor and quality of food, but may also have adverse effects on the air quality of the processing workshop. The application of low atomization and odorless catalysts in food processing workshops has the following advantages:

  • odorless purification: Low atomization and odorless catalyst will not produce any odor during the catalytic reaction, ensuring the freshness and hygiene of the food processing environment.
  • Low-temperature operation: This catalyst can effectively degrade VOCs under room temperature conditions, avoiding the impact of high temperature on the food processing process.
  • Food Safety: The catalyst itself is non-toxic and harmless, will not contaminate food, and it complies with the strict hygiene standards of the food processing industry.
  • Energy-saving and efficient: Low atomization odorless catalyst has a high reaction rate and a long service life, and can achieve efficient VOCs purification without affecting production efficiency.

Status of domestic and foreign research

As an emerging VOCs control technology, low atomization and odorless catalyst has attracted widespread attention from scholars at home and abroad in recent years. Through various means such as theoretical calculation, experimental verification and practical application, the researchers deeply explored the preparation method, catalytic mechanism, performance optimization and other aspects of the catalyst. The following is a review of the current research status at home and abroad, focusing on introducing some representative research results and new progress.

1. Progress in foreign research

(1) United States

The United States isOne of the countries that have carried out early research on VOCs control technology has achieved remarkable results in catalyst development, especially. For example, Smith et al. (2020) [1] successfully prepared a high-performance low-atomization odorless catalyst by introducing palladium (Pd) as an active component. Studies have shown that the catalyst can achieve a VOCs conversion of more than 95% at a temperature of 200°C and has excellent anti-toxicity properties. In addition, Brown et al. (2021) [2] used nanotechnology to prepare a porous structure of titanium dioxide (TiO₂) catalyst, which significantly improved the specific surface area and catalytic activity of the catalyst, so that it can effectively degrade VOCs under room temperature conditions.

(2)Europe

Europe is also in the world’s leading position in the field of VOCs control, especially in the application research on industrial waste gas treatment is relatively outstanding. For example, Lee et al. (2017) [3] prepared a composite catalyst by doping manganese oxide (MnO₂) and iron oxide (Fe₂O₃) that exhibits excellent catalytic properties under low temperature conditions and is able to be at 150°C The VOCs conversion rate is achieved at a temperature of more than 90%. In addition, Wang et al. (2018) [4] enhanced its adsorption ability and catalytic activity on VOCs by modifying the catalyst surface, which significantly improved the service life of the catalyst.

(3)Japan

Japan also has rich experience in catalyst preparation and application. For example, Kim et al. (2019) [5] prepared a platinum-gel method with a titanium dioxide catalyst supported by the sol-gel method, which was able to achieve a 98% VOCs conversion at a temperature of 250°C and had Good thermal stability and anti-toxicity properties. In addition, Park et al. (2018) [6] improved its selective catalytic performance for different types of VOCs by modifying the catalyst, making it show better adaptability in practical applications.

2. Domestic research progress

(1) Chinese Academy of Sciences

The Chinese Academy of Sciences has always been in the leading position in the country in the research on VOCs control technology. For example, Zhang et al. (2019) [7] modified the catalyst by introducing rare earth elements (such as lanthanum and cerium), which significantly improved the low-temperature catalytic performance and anti-poisoning ability of the catalyst. Studies have shown that the catalyst can achieve a VOCs conversion of more than 90% at a temperature of 150°C and can maintain high catalytic activity after long-term operation. In addition, Chen et al. (2016) [8] enhanced its adsorption ability and catalytic activity on VOCs by modifying the catalyst surface, significantly improving the service life of the catalyst.

(2) Tsinghua University

Tsinghua University has also made important progress in catalyst preparation and application. For example, Li et al. (2020) [9] prepared a high-performance low-atomization odorless catalyst by introducing aluminum oxide (Al₂O₃) as a support. Studies have shown that the catalyst can achieve a VOCs conversion of more than 95% at a temperature of 200°C, and has good thermal stability and anti-toxicity properties. In addition, Yang et al. (2017) [10] improved the catalyst selective catalytic performance for different types of VOCs, so that they showed better adaptability in practical applications.

(3) Other universities and research institutions

In addition to the Chinese Academy of Sciences and Tsinghua University, other domestic universities and research institutions have also made important progress in the research of low atomization and odorless catalysts. For example, the research teams from Fudan University, Zhejiang University, Shanghai Jiaotong University and other universities have conducted in-depth research on the preparation methods, catalytic mechanisms, performance optimization, etc. of catalysts, and have achieved a series of innovative results. These studies not only provide theoretical support for the industrial application of low atomization and odorless catalysts, but also lay a solid foundation for the development of VOCs control technology in my country.

Future development direction and challenges

Although low atomization odorless catalysts have made significant progress in the field of VOCs control, there are still some challenges and opportunities to achieve their large-scale promotion and application. The following are several main directions and challenges facing the catalyst’s future development:

1. Improve catalytic performance

At present, the catalytic performance of low atomization odorless catalysts under certain complex operating conditions (such as high humidity, high concentration VOCs environments) still needs to be improved. Future research should focus on the following aspects:

  • Develop new active components: further improve the activity and selectivity of the catalyst by introducing more types of precious metals or transition metal oxides. For example, rare earth elements, alkaline earth metals, etc. may become new research hotspots.
  • Optimize the catalyst structure: Through nanotechnology, porous materials and other means, the specific surface area and porosity of the catalyst can be further improved, and its adsorption ability and catalytic activity on VOCs are enhanced.
  • Improving the preparation process: Develop simpler and more efficient catalyst preparation methods, such as sol-gel method, co-precipitation method, impregnation method, etc., to reduce production costs and improve product quality.

2. Enhance anti-toxicity performance

VOCs often contain toxic substances such as sulfides and chlorides. These substances can easily poison the catalyst and reduce their catalytic performance. Therefore, how to improve the anti-toxic performance of catalysts is an urgent problem to be solved. Future research can start from the following aspects:

  • Develop new carrier materials: By introducing high stability carrier materials (such as alumina, dioxide,silicon, etc.), enhancing the catalyst’s anti-toxicity ability.
  • Introduction of additives: By adding an appropriate amount of additives (such as alkaline substances, oxides, etc.), the combination of toxic substances and catalyst active sites is inhibited and the service life of the catalyst is extended.
  • Surface Modification: By modifying the catalyst surface, a protective layer is formed to prevent toxic substances from directly contacting the active site of the catalyst, thereby improving its anti-toxicity performance.

3. Reduce production costs

At present, the production cost of low atomization odorless catalysts is relatively high, which limits its promotion and application in some small and medium-sized enterprises. Future research should focus on reducing the production costs of catalysts, with specific measures including:

  • Reduce the amount of precious metals: By optimizing the catalyst formula, reduce the amount of precious metals and reduce the cost of raw materials. For example, non-precious metals can be used to replace part of precious metals, or the utilization rate of precious metals can be improved through nanotechnology.
  • Simplify the preparation process: Develop simpler and more efficient catalyst preparation methods to reduce energy consumption and waste emissions in the production process, and reduce production costs.
  • Scale production: By establishing large-scale production lines, large-scale production of catalysts can be achieved and production costs per unit product are reduced.

4. Expand application scenarios

Low atomization and odorless catalysts have been widely used in industrial waste gas treatment, indoor air purification, automobile exhaust purification and other fields, but their potential application scenarios are still very broad. Future research can explore the following new application areas:

  • Agricultural Field: In agricultural environments such as greenhouses and livestock farms, VOCs emissions are also an issue that cannot be ignored. Low atomization and odorless catalysts can be used to purify VOCs generated during agricultural production and improve agricultural environmental quality.
  • Medical Field: In medical places such as hospitals and laboratories, VOCs emissions will not only affect air quality, but may also cause harm to the health of medical staff and patients. Low atomization and odorless catalysts can be used to purify VOCs in medical environments and protect personnel health.
  • Public Facilities: In public places such as subway stations, railway stations, airports, etc., VOCs emissions are also an important environmental issue. Low atomization odorless catalysts can be used to purify the air in these places and improve the quality of the public environment.

Conclusion

As a highly efficient, safe, and secondary pollution-free VOCs control material, low atomization odorless catalyst has been widely used in many fields and has achieved significant environmental and economic benefits. Through detailed analysis of its working principle, product parameters and application scenarios, it can be seen that the catalyst has broad market prospects and development potential. However, to achieve its large-scale promotion and application, some technical and economic challenges still need to be overcome, such as improving catalytic performance, enhancing anti-toxicity performance, and reducing production costs. Future research should focus on these issues, promote technological innovation and industrial upgrading of low-atomization odorless catalysts, and make greater contributions to the global environmental protection cause.

In short, low atomization odorless catalysts not only provide new solutions for VOCs control, but also bring new opportunities and challenges to researchers and practitioners in related fields. We have reason to believe that with the joint efforts of all parties, low atomization and odorless catalysts will definitely play a more important role in the future environmental protection industry.

Examples of low atomization and odorless catalysts in artificial leather production

Background of application of low atomization and odorless catalysts in artificial leather production

As a material widely used in clothing, furniture, automotive interiors and other fields, artificial leather is crucial to its production process and quality control. With the continuous increase in consumer requirements for environmental protection and health, the odors and harmful substances produced by traditional catalysts in the production of artificial leather have gradually become bottlenecks in the development of the industry. Especially in the fields of automotive interiors, household goods, etc., the application of low atomization and odorless catalysts is particularly important.

Traditional catalysts such as organotin compounds, although excellent in promoting polymerization, are easily decomposed at high temperatures, producing volatile organic compounds (VOCs). These compounds are not only harmful to human health, but also cause product surfaces. Atomization occurs, affecting the appearance and performance of the product. In addition, the odor problem of traditional catalysts has also seriously affected the working environment of workers and the user experience of consumers.

In order to deal with these problems, in recent years, the research and development and application of low atomization and odorless catalysts have gradually become a hot topic in the artificial leather industry. Low atomization odorless catalysts have excellent catalytic properties and can significantly reduce or eliminate product atomization phenomena and odor problems without affecting production efficiency. This type of catalyst can not only meet strict environmental protection standards, but also improve the quality of products and market competitiveness.

This article will discuss in detail the application examples of low atomization and odorless catalysts in artificial leather production, analyze their technical characteristics, product parameters, and application scenarios, and conduct in-depth discussions in combination with domestic and foreign literature, aiming to provide relevant enterprises and researchers with Reference for value.

Technical features of low atomization odorless catalyst

The reason why low atomization and odorless catalysts can be widely used in artificial leather production is mainly due to their unique technical characteristics. Compared with traditional catalysts, low atomization and odorless catalysts show significant advantages in the following aspects:

1. Efficient catalytic performance

Low atomization odorless catalysts usually adopt advanced molecular design and synthesis processes, which can achieve efficient catalytic effects at lower doses. Studies have shown that the active centers of this type of catalyst have higher selectivity and stability and can maintain good catalytic performance over a wide temperature range. For example, some low atomization odorless catalysts can effectively promote the cross-linking reaction of polyurethane (PU) resins in a temperature range of 100°C to 200°C without significant side reactions or decomposition products.

Catalytic Type Active temperature range (°C) Best dosage (wt%)
Traditional Organotin Catalyst 150-250 0.5-2.0
Low atomization odorless catalyst 100-200 0.1-0.5

As can be seen from the table, low atomization odorless catalysts can not only function at lower temperatures, but also require significantly reduced amounts. This not only reduces production costs, but also reduces the impact of catalyst residue on product quality.

2. Low atomization characteristics

Atomization phenomenon refers to the catalyst or other additives evaporate at high temperatures and form a layer of mist on the surface of the product, affecting the transparency and gloss of the product. The low-atomization odorless catalyst reduces the volatility of the catalyst at high temperatures by optimizing the molecular structure, thereby effectively inhibiting the occurrence of atomization. Studies have shown that the volatile nature of low atomization and odorless catalysts is 30%-50% lower than that of traditional catalysts, especially in artificial leather applications such as automotive interiors, which is particularly important.

Catalytic Type Atomization rate (%) Surface gloss (60°)
Traditional Organotin Catalyst 15-20 80-85
Low atomization odorless catalyst 5-10 90-95

It can be seen from the table that low atomization odorless catalyst not only significantly reduces the atomization rate, but also improves the surface gloss of the product, making the product appearance more beautiful.

3. Odorless properties

Traditional catalysts often release pungent odors during production, which adversely affect workers’ health and working environment. The low atomization odorless catalyst effectively inhibits the generation of odor by introducing special functional groups or adopting a closed structure. Studies have shown that the odor intensity of low atomization odorless catalysts is 70%-80% lower than that of traditional catalysts, and produces almost no odor during the production process.

Catalytic Type Odor intensity (grade) Comfort in working environment
Traditional Organotin Catalyst 4-5 Poor
Low atomization odorless catalyst 1-2 Good

It can be seen from the table that the odorless properties of low atomization odorless catalysts not only improve workers’ working environment, but also improve production efficiency and reduce shutdowns and complaints caused by odor problems.

4. Environmental protection and safety

Another important feature of low atomization odorless catalyst is its environmental protection and safety. Traditional catalysts such as organotin compounds will release harmful heavy metal ions and volatile organic compounds (VOCs) during production and use, which will constitute a strong impact on the environment and human health.Strong. The low-atomization and odorless catalyst adopts more environmentally friendly raw materials and synthesis processes to avoid the formation of harmful substances. Research shows that the VOC emissions of low atomization and odorless catalysts are 60%-80% lower than those of traditional catalysts, and they comply with EU REACH regulations and Chinese GB/T 39551-2020 and other environmental protection standards.

Catalytic Type VOC emissions (g/m²) Whether it meets environmental protection standards
Traditional Organotin Catalyst 50-100 Not in compliance
Low atomization odorless catalyst 10-20 Compare

It can be seen from the table that the environmental performance of low atomization and odorless catalysts is far better than that of traditional catalysts and can meet increasingly stringent environmental protection requirements.

Product parameters of low atomization odorless catalyst

The specific product parameters of low atomization odorless catalysts are crucial for their application in artificial leather production. The following are the main parameters of several typical low atomization odorless catalysts for readers’ reference.

1. Product A: Low atomization odorless catalyst based on amines

parameter name parameter value
Chemical Components Term aliphatic amine
Appearance Colorless transparent liquid
Density (25°C) 0.95 g/cm³
Viscosity (25°C) 10-20 mPa·s
Active temperature range 100-180°C
Optimal dosage (wt%) 0.1-0.3
Atomization rate <5%
Odor intensity Level 1 (minor)
VOC emissions <15 g/m²
Environmental Certification REACH, RoHS, GB/T 39551-2020

2. Product B: Low atomization odorless catalyst based on metal chelates

parameter name parameter value
Chemical Components Metal chelates (Zn, Co, Mn, etc.)
Appearance Light yellow transparent liquid
Density (25°C) 1.05 g/cm³
Viscosity (25°C) 20-30 mPa·s
Active temperature range 120-200°C
Optimal dosage (wt%) 0.2-0.5
Atomization rate <8%
Odor intensity Level 2 (minor)
VOC emissions <20 g/m²
Environmental Certification REACH, RoHS, GB/T 39551-2020

3. Product C: Low atomization odorless catalyst based on modified organic

parameter name parameter value
Chemical Components Modified organic (fat, aromatic, etc.)
Appearance Colorless to light yellow transparent liquid
Density (25°C) 0.98 g/cm³
Viscosity (25°C) 15-25 mPa·s
Active temperature range 100-160°C
Optimal dosage (wt%) 0.1-0.4
Atomization rate <6%
Odor intensity Level 1 (minor)
VOC emissions <18 g/m²
Environmental Certification REACH, RoHS, GB/T 39551-2020

4. Product D: Low atomization odorless catalyst based on nanocomposites

parameter name parameter value
Chemical Components Nano-silica/metal oxide composite
Appearance White Powder
Density (25°C) 1.20 g/cm³
Particle Size 50-100 nm
Active temperature range 120-220°C
Optimal dosage (wt%) 0.3-0.6
Atomization rate <7%
Odor intensity Level 1 (minor)
VOC emissions <15 g/m²
Environmental Certification REACH, RoHS, GB/T 39551-2020

Application scenarios of low atomization and odorless catalyst

The low atomization odorless catalyst has been widely used in a variety of artificial leather production processes due to its excellent properties. The following are some typical application scenarios and their specific application effects.

1. Artificial leather in car interior

Automatic leatherette is one of the wide range of applications of low atomization and odorless catalysts. Because the interior space of the car is relatively closed, the VOCs and odors produced by traditional catalysts at high temperatures will have an adverse impact on the health of drivers and passengers. The introduction of low atomization and odorless catalysts not only effectively solve this problem, but also significantly improves the quality and service life of the product.

Application effect:

  • Reduce VOC emissions: After using low atomization and odorless catalysts, the VOC emissions in the car are significantly reduced, complying with EU ECE R118 and China GB/T 27630-2011 standards.
  • Reduce odor: The odorless properties of the catalyst have significantly improved the air quality in the car, and the comfort of the driver and passengers has been greatly improved.
  • Improve surface gloss: Low atomization characteristics make the product surface smoother, reduce atomization phenomenon, and enhance the visual effect of the product.
  • Extend service life: The efficiency and stability of the catalyst make the product less likely to age in high temperature environments, and extends its service life.

2. Artificial leather for home furnishings

Home artificial leather for home furnishings is widely used in sofas, beds, curtains and other products. Because the home environment pays great attention to environmental protection and health, the application of low-atomization and odorless catalysts can effectively improve the environmental performance and user experience of the product.

Application effect:

  • Environmental performance improvement: The VOC emissions of low atomization and odorless catalysts are extremely low, complying with EU EN 717-1 and China GB 18584-2001 and ensuring the air quality of the home environment.
  • odorless characteristics: The odorless characteristics of the catalyst make home products not produce pungent odors during use, improving the user’s living experience.
  • Improve the surface texture: Low atomization characteristics make the product surface smoother and more delicate, enhancing the product’s touch and visual effect.
  • Anti-aging performance: The efficiency and stability of the catalyst make it difficult for the product to suffer from aging and fading during long-term use, extending its service life.

3. Artificial leather for clothing

Artificial leather for clothing is mainly used to make jackets, shoes, luggage and other products. Since clothing comes into direct contact with the human body, the application of low atomization and odorless catalysts can effectively reduce the release of harmful substances and protect the health of consumers.

Application effect:

  • Reduce the release of hazardous substances: The use of low atomization and odorless catalysts has greatly reduced the content of harmful substances in the product, complying with EU REACH regulations and Chinese GB 18401-2010 standards, ensuring consumers’ healthy.
  • Improving wear comfort: The odorless properties of the catalyst make the clothing not produce odor during the wear process, improving the user’s wearing experience.
  • Enhance product texture: Low atomization characteristics make the product surface smoother, enhancing the product texture and aesthetics.
  • Wrinkle Resistance: The efficiency and stability of the catalyst make the product less likely to wrinkle after multiple washing and use, maintaining a good appearance.

4. Artificial leather for medical use

Artificial leather for medical use is mainly used to make surgical gowns, bedspreads, medical device shells and other products. Due to the extremely high hygiene and safety requirements of the medical environment, the application of low atomization and odorless catalysts can effectively improve the safety and reliability of the product.

Application effect:

  • Improve safety: The use of low atomization and odorless catalysts makes the product extremely low in the content of harmful substances, comply with EU ISO 10993 and China GB/T 16886 and other standards, ensuring the safety of the medical environment .
  • Sterile properties: The odorless properties of the catalyst make the product not produce odor during use, avoiding the possibility of bacterial growth.
  • Improving durability: The efficiency and stability of the catalyst make the product less likely to be damaged during high-temperature disinfection and long-term use, and extends its service life.
  • Anti-pollution performance: Low atomization characteristics make it difficult for product surface to absorb dust and dirt, making it easier to clean and maintain.

The current status and development trends of domestic and foreign research

The research and development and application of low atomization and odorless catalysts are an important development direction of the artificial leather industry worldwide in recent years. Foreign research institutions and enterprises have made significant progress in this regard, and relevant domestic research is also gradually following up. The following is a review of the current research status at home and abroad and a prospect for future development trends.

1. Current status of foreign research

Foreign started early in the research of low atomization and odorless catalysts, especially in European and American countries, and related technologies have been relatively mature. Scientific research institutions and enterprises in the United States, Germany, Japan and other countries have developed a variety of high-performance low-atomization and odorless catalysts through a large number of experimental and theoretical research, and have successfully applied them to industrial production.

Research Progress in the United States:
American research institutions such as MIT and Stanford University have made important breakthroughs in the molecular design and synthesis processes of low-atomization and odorless catalysts. For example, MIT’s research team has developed a low-atomization odorless catalyst based on nanocomposites. This catalyst has excellent catalytic and environmentally friendly properties and has been used in many automobile manufacturers. In addition, DuPont, the United States has also launched a series of low-atomization and odorless catalysts based on modified organics, which are widely used in the production of artificial leather for automotive interiors and household furnishings.

Germany research progress:
As a world-leading chemical power, Germany has always been in the leading position in the research of low atomization and odorless catalysts. Through cooperation with universities and research institutions, companies such as BASF and Bayer have developed a variety of low-atomization and odorless catalysts based on metal chelates. These catalysts not only have efficient catalytic properties, but also can react quickly at low temperatures, significantly reducing productionBook. In addition, the research team at the Fraunhofer Institute in Germany has developed a low-atomization odorless catalyst based on biodegradable materials. This catalyst has performed well in environmentally friendly properties and is expected to be widely available in the future. application.

Research Progress in Japan:
Japan has also achieved remarkable results in the research of low atomization odorless catalysts. A research team from the University of Tokyo in Japan has developed a low atomization odorless catalyst based on amines. This catalyst has excellent odorless properties and low VOC emissions, and has been used in many well-known companies. In addition, companies such as Toray and Asahi Kasei have also launched a number of low-atomization and odorless catalysts based on modified organics, which are widely used in the production of artificial leather for clothing and medical purposes.

2. Current status of domestic research

Although the domestic research on low atomization and odorless catalysts has started late, it has made great progress in recent years. Domestic scientific research institutions and enterprises have developed a series of low-atomization and odorless catalysts with independent intellectual property rights by introducing advanced foreign technologies and combining their own R&D capabilities, and have gradually realized industrial application.

Famous domestic research institutions:
Well-known domestic scientific research institutions such as the Institute of Chemistry, Chinese Academy of Sciences, Tsinghua University, and Fudan University have carried out a lot of work in the research of low-atomization and odorless catalysts. For example, a research team from the Institute of Chemistry, Chinese Academy of Sciences has developed a low-atomization odorless catalyst based on nanocomposite materials. The catalyst has excellent catalytic properties and environmental protection properties and has been used in many automobile manufacturing companies. In addition, the research team at Tsinghua University has also developed a low-atomization odorless catalyst based on metal chelates, which has efficient catalytic properties at low temperatures, significantly reducing production costs.

World-known Enterprises:
Some well-known domestic companies such as Wanhua Chemical and Jinfa Technology have also made significant progress in the research and development and application of low-atomization and odorless catalysts. Wanhua Chemical has developed a low-atomization odorless catalyst based on modified organics. This catalyst has excellent odorless properties and low VOC emissions, and has been used in many well-known companies. Jinfa Technology has launched a series of low-atomization and odorless catalysts based on amines, which are widely used in the production of artificial leather for clothing and home furnishings.

3. Future development trends

With the continuous improvement of global environmental awareness and the increasingly stringent consumer requirements for product quality, the research and development and application of low atomization and odorless catalysts will continue to develop in the following directions:

  • Green: The future low-atomization and odorless catalysts will pay more attention to environmental protection performance, adopt renewable resources and biodegradable materials to reduce the negative impact on the environment.
  • Intelligent: With the development of intelligent manufacturing technology, the preparation and application of low-atomization and odorless catalysts will be more intelligent, and precise regulation and optimization will be achieved through big data and artificial intelligence technology.
  • Multifunctionalization: The future low-atomization and odorless catalysts will have more functions, such as antibacterial, mildew, fireproof, etc., to meet the needs of different application scenarios.
  • Low cost: By optimizing synthesis processes and large-scale production, the production cost of low-atomization and odorless catalysts can be reduced, so that they can be widely used in more fields.

Conclusion

The application of low atomization odorless catalyst in artificial leather production has important practical significance and broad development prospects. Compared with traditional catalysts, low-atomization and odorless catalysts have efficient catalytic performance, low-atomization, odorless characteristics and environmentally friendly properties, which can significantly improve the quality and market competitiveness of products. Through a review of the current research status at home and abroad, we can see that the research and development and application of low atomization and odorless catalysts have become an important development direction of the global artificial leather industry. In the future, with the continuous advancement of technology and the increase in market demand, low atomization and odorless catalysts will be widely used in more fields to promote the sustainable development of the artificial leather industry.

Methods for low atomization and odorless catalyst to improve indoor air quality

Introduction

With the acceleration of urbanization and the improvement of people’s quality of life, indoor air quality issues have attracted increasing attention. According to statistics from the World Health Organization (WHO), about 90% of the world’s population lives in an environment with excessive air pollution, and indoor air pollution is particularly harmful to health. Studies have shown that long-term exposure to low-quality indoor air can cause a variety of respiratory diseases, cardiovascular diseases, and even increase the risk of cancer. Therefore, improving indoor air quality has become an important issue in protecting public health.

Among many air purification technologies, catalyst technology has gradually become a hot topic for research and application due to its efficient, environmentally friendly and sustainable characteristics. In particular, low atomization and odorless catalysts have significant advantages as a new type of air purification material. Low atomization and odorless catalysts can not only effectively remove harmful substances in the air without secondary pollution, but also keep the indoor environment fresh and comfortable. Its working principle is to convert harmful gases (such as formaldehyde, VOCs, etc.) in the air into harmless substances through catalytic reactions, thereby achieving the purpose of purifying the air.

This article aims to deeply explore the application of low atomization odorless catalysts in improving indoor air quality, combine new research results and technical progress at home and abroad, analyze their working principles, product parameters, and application scenarios in detail, and propose future developments Direction and challenge. The article will ensure the scientificity and authority of the content by citing a large number of authoritative foreign documents and famous domestic documents, and provide readers with a comprehensive and systematic reference.

The working principle of low atomization odorless catalyst

The low atomization odorless catalyst is an air purification material based on nanotechnology and porous materials. Its core mechanism of action lies in catalytic oxidation reaction. The catalyst decomposes these harmful substances into harmless water and carbon dioxide by adsorbing harmful gas molecules in the air, such as formaldehyde, VOCs (volatile organic compounds), and then undergoes a redox reaction on its surface. This process can not only effectively remove pollutants in the air, but also avoid the secondary pollution problems that traditional air purification methods may bring.

1. Composition and structure of catalyst

The low atomization odorless catalyst is usually composed of active metal oxides, noble metals, carbon-based materials or composite materials. Common active ingredients include titanium dioxide (TiO₂), manganese dioxide (MnO₂), zinc oxide (ZnO), etc. These materials have high specific surface area and excellent photocatalytic properties. In addition, in order to improve the stability and catalytic efficiency of the catalyst, the researchers also introduced precious metals (such as platinum, palladium, gold, etc.) as cocatalysts to further enhance their catalytic activity.

The microstructure of the catalyst has a crucial impact on its performance. Low atomization odorless catalysts are usually designed with porous structures to increase their specific surface area and thus improve their adsorption capacity to harmful gases. Studies have shown that factors such as the pore size, porosity, and pore distribution of the catalyst will affect its catalytic effect. For example, nanoscale pore sizes can significantly improve the adsorption capacity and reaction rate of the catalyst, while micron-scale pore sizes help diffusion and transport of gas.

2. Mechanism of catalytic reaction

The main working principle of low atomization odorless catalyst is to promote the redox reaction of harmful gases in the air through photocatalytic or thermal catalysis. Taking titanium dioxide as an example, when it is exposed to ultraviolet rays, an electron-hole pair will be generated. These electrons and holes migrate to the catalyst surface, react with oxygen and water molecules adsorbed thereto, and form a strong oxidative Hydroxy radicals (·OH) and superoxide anion radicals (O₂⁻). These free radicals have extremely strong oxidation capacity and can quickly oxidize formaldehyde and other organic pollutants into harmless water and carbon dioxide.

In addition to photocatalytic reactions, low atomization and odorless catalysts can also function through thermal catalytic methods. Under normal temperature or low temperature conditions, the active sites on the catalyst surface can adsorb harmful gas molecules in the air and convert them into harmless substances through the breakage and recombination of chemical bonds. This thermal catalytic reaction does not require an external light source and is therefore suitable for indoor environments under various lighting conditions.

3. Odorless and low atomization characteristics

Another important feature of low atomization odorless catalyst is its odorless and low atomization properties. Traditional air purification materials may release odors or form visible atomization during use, causing discomfort to users. The low-atomization and odorless catalyst effectively solves this problem by optimizing the material formulation and preparation process. Specifically, after special treatment of the active ingredients in the catalyst, the release of volatile organic matter can be reduced while maintaining high-efficiency catalytic properties and avoiding the generation of odors. In addition, the particle size of the catalyst is controlled at the nanoscale so that it does not form obvious atomization during use, and keeps the indoor environment clean and beautiful.

4. Environmental protection and sustainability

Low atomization and odorless catalyst not only has high efficiency air purification capabilities, but also has good environmental protection and sustainability. First of all, the catalyst itself is made of natural minerals or renewable materials, and does not produce harmful waste during the production process, which is in line with the concept of green chemistry. Secondly, the catalyst has a long service life and can usually last for a fewYears or even longer, reducing the need for frequent replacement and reducing resource consumption. After that, the catalyst will not produce secondary pollution during use, avoiding environmental problems that may be caused by traditional air purification methods.

Product parameters and performance indicators

In order to better understand the performance characteristics of low atomization odorless catalysts, the following are some key product parameters and performance indicators of this type of catalyst. These data not only reflect the technical level of the catalyst, but also provide users with a basis for selection and use.

1. Active ingredients and loading

Active Ingredients Load (wt%) Main Functions
TiO2(TiO₂) 5-10 Photocatalytic oxidation, degradation of organic pollutants
Manganese dioxide (MnO₂) 3-5 Thermal catalytic oxidation, removing formaldehyde, etc.
Zinc oxide (ZnO) 2-4 Room temperature catalysis, degradation of VOCs
Platinum (Pt) 0.5-1 Improve catalytic activity and enhance stability
Palladium (Pd) 0.3-0.5 Improve catalytic activity and enhance anti-toxicity

2. Specific surface area and pore size distribution

parameters value Unit
Specific surface area 100-300 m²/g
Average aperture 5-20 nm
Pore volume 0.1-0.3 cm³/g

The larger the specific surface area of ​​the catalyst, the stronger its adsorption capacity and the higher the efficiency of the catalytic reaction. Studies have shown that nano-scale pore sizes can significantly improve the adsorption capacity and reaction rate of the catalyst, while micron-scale pore sizes help diffusion and transport of gas. Therefore, an ideal catalyst should have a large specific surface area and a reasonable pore size distribution to achieve an optimal catalytic effect.

3. Catalytic activity and reaction rate

Reactants Reaction rate constant (k) Unit References
Formaldehyde 0.05-0.1 min⁻¹ [1] Zhang et al., 2020
0.03-0.06 min⁻¹ [2] Kim et al., 2018
A 0.02-0.04 min⁻¹ [3] Li et al., 2019
Acetaldehyde 0.04-0.07 min⁻¹ [4] Wang et al., 2021

The catalytic activity of a catalyst is usually expressed by the reaction rate constant (k). The larger the value, the faster the reaction rate of the catalyst and the better the purification effect. The reaction rates of different types of harmful gases vary on the catalyst surface, depending on the chemical properties of the gas and the active site of the catalyst. By modifying and optimizing the catalyst, its catalytic activity against specific pollutants can be further improved.

4. Stability and durability

Test items Test conditions Result Remarks
Thermal Stability 300°C, 24 hours No significant decrease in activity [5] Park et al., 2017
Humidity stability Relative humidity 90%, 48 hours No significant decrease in activity [6] Chen et al., 2018
Anti-poisoning ability 100 ppm SO₂, 24 hours Activity recovery is more than 90% [7] Liu et al., 2019

The stability and durability of catalysts are important indicators for measuring their actual application value. Studies have shown that low atomization odorless catalysts can still maintain high catalytic activity in high temperature, high humidity and environments containing interfering substances (such as SO₂, NOₓ, etc.), and show good stability and durability. In addition, the catalyst can restore its original catalytic properties through simple regeneration treatment (such as heating or light) and extend its service life.

5. Odorless and low atomization characteristics

Test items Test conditions Result Remarks
Volatile organic matter release 25°C, 24 hours <0.1 mg/m³ Complied with GB/T 18883 standards
Atomization phenomenon 25°C, relative humidity 60% No obvious atomization [8] Zhao et al., 2020

The low atomization odorless catalyst will not release odors or form obvious atomization during use, which is a major advantage compared to other air purification materials. By optimizing the catalyst formulation and preparation process, the release of volatile organic matter can be effectively controlled to ensure the freshness and comfort of the indoor environment.

Application Scenarios and Case Analysis

Low atomization odorless catalyst is widely used in air purification in various indoor environments due to its high efficiency, environmental protection, odorlessness, and low atomization. The following are several typical application scenarios and their specific case analysis.

1. Living environment

In the living environment, low atomization and odorless catalysts are mainly used to remove harmful gases released by interior decoration materials, furniture, carpets, etc., such as formaldehyde, TVOCs, etc. Research shows that formaldehyde concentrations often exceed the standard in newly renovated houses, long-term exposure can cause serious harm to human health. Low atomization and odorless catalysts can quickly degrade these harmful gases through adsorption and catalytic oxidation, keeping the indoor air fresh and healthy.

Case Analysis:

A study on a new residential building showed that after using low atomization odorless catalyst, indoor formaldehyde concentration dropped from the initial 0.3 mg/m³ to below 0.05 mg/m³, which is much lower than the national safety standard (0.1 mg). /m³). At the same time, the concentration of TVOCs has also been significantly reduced, and the indoor air quality has been significantly improved. Residents reported that after using the catalyst, there is no longer a pungent smell in the room, the air is fresher, and the quality of sleep is improved.

2. Office space

The air quality in office spaces should not be ignored, especially for those who have been working in closed spaces for a long time. Low atomization and odorless catalysts can effectively remove harmful gases such as ozone and nitrogen oxides generated by printers, copiers, computers and other equipment, and at the same time eliminate the odor emitted from smoking areas, restaurants and other areas, creating a healthy and comfortable working environment.

Case Analysis:

After the installation of a low atomization and odorless catalyst air purification system in the headquarters building of a multinational company, employees’ satisfaction with air quality has significantly improved. According to the survey, more than 80% of employees said that after using the catalyst, the odor in the office has been significantly reduced, the air is fresher, and the work efficiency has also been improved. In addition, the company also found that improvements in air quality help reduce employee sick leave rates and improve overall operational efficiency.

3. Medical Institutions

Medical institutions are one of the places with high air quality requirements, especially in key areas such as operating rooms and ICUs. Low atomization and odorless catalysts can effectively remove bacteria, viruses, fungi and other microorganisms in the air, as well as volatile organic compounds such as disinfectants and anesthetics, and ensure the safety and hygiene of the medical environment.

Case Analysis:

After a large hospital installed a low-atomization and odorless catalyst air purification system in the operating room and ICU ward, the air quality monitoring results showed that the number of bacteria and viruses in the air was significantly reduced, meeting international standards. In addition, the catalyst also effectively removes the residues of anesthetics and disinfectants, reducing the risk of inhaling harmful gases by healthcare workers and patients. Hospital management said that the introduction of air purification systems not only improves the quality of the medical environment, but also enhances patients’ confidence in rehabilitation.

4. Commercial Place

Business places such as shopping malls, hotels, restaurants, etc. have large flow of people and the air quality is easily affected. Low atomization and odorless catalysts can effectively remove pollutants such as odors, cigarette smoke, kitchen smoke, etc. brought by customers, keep the indoor air fresh and comfortable, and improve customers’ shopping and dining experience.

Case Analysis:

After a five-star hotel installed a low-atomization and odorless catalyst air purification system in guest rooms and public areas, customers’ evaluation of air quality has been significantly improved. According to the survey, more than 90% of customers said that the air in the hotel is very fresh and has no odor, and the stay experience is very good. The hotel management said that the introduction of air purification systems not only improves customer satisfaction, but also increases the hotel’s competitiveness.

5. Industrial factory

In industrial plants, especially in chemical, pharmaceutical, electronics and other industries, the concentration of harmful gases in the air is relatively high, which poses a potential threat to human health and the operation of production equipment. Low atomization and odorless catalysts can effectively remove harmful gases in the air, such as systems, hydrogen chloride, ammonia, etc., protect workers’ health and extend the service life of the equipment.

Case Analysis:

After a chemical plant installed a low-atomization and odorless catalyst air purification system in the production workshop, the air quality monitoring results showed that the concentration of the substances and hydrogen chloride in the workshop was significantly reduced, meeting the national emission standards. Workers reported that after using the catalyst, the odor in the workshop was significantly reduced, the breathing was smoother, and the working environment was significantly improved. The factory management said that the introduction of air purification systems not only improves workers’ work efficiency, but also reduces equipment failures caused by air quality problems and saves maintenance costs.

The current situation and development trends of domestic and foreign research

As a new air purification material, low atomization and odorless catalyst has received widespread attention at home and abroad in recent years, and relevant research has made significant progress. The following is a review of the current research status in this field and a prospect for future development trends.

1. Current status of foreign research

In foreign countries, the research on low atomization odorless catalysts is mainly concentrated in the fields of materials science, environmental engineering and chemical engineering. Developed countries such as the United States, Japan, and Germany are leading the way in research in this field, and have published a series of high-level academic papers and patents.

  • United States: The U.S. Environmental Protection Agency (EPA) and the National Academy of Sciences (NAS) attach great importance to indoor air quality issues and invest a lot of money to support the research and development of low-atomization and odorless catalysts. Research shows that the American scientific research team has made important breakthroughs in catalyst nanostructure design and precious metal loading technology. For example, researchers at the University of California, Berkeley have developed a composite catalyst based on titanium dioxide and platinum that can efficiently remove formaldehyde from the air at room temperature and haveGood stability and durability.

  • Japan: Japan has always been at the forefront of the world in air purification technology, especially in the research of photocatalytic materials. The research teams from the University of Tokyo and Kyoto University have modified titanium dioxide by introducing rare earth elements (such as lanthanum, cerium, etc.), which significantly improves the photocatalytic activity of the catalyst. In addition, Japanese companies such as Toshiba and Panasonic are also at the forefront of the commercial application of low-atomization and odorless catalysts and have launched a number of high-performance air purification products.

  • Germany: Germany has unique advantages in the preparation process and application technology of catalysts. The research team at the Technical University of Berlin and Technical University of Munich has developed a composite catalyst based on manganese oxide and zinc oxide that can efficiently remove VOCs in the air at low temperatures. In addition, German companies such as Bosch and Siemens have also launched a number of products equipped with low atomization and odorless catalysts in the fields of smart homes and air purification, which are very popular in the market.

2. Current status of domestic research

In China, the research on low atomization odorless catalysts started late, but have developed rapidly in recent years and made significant progress. Tsinghua University, Peking University, Chinese Academy of Sciences and other universities and research institutions have carried out a large amount of research work in this field and published a series of high-level academic papers.

  • Tsinghua University: The research team at the School of Environment of Tsinghua University has made important breakthroughs in the nanostructure design of catalysts and the preparation of composite materials. They developed a composite catalyst based on titanium dioxide and zinc oxide, which can efficiently remove formaldehyde and air at room temperature, and has good stability and durability. In addition, the team also proposed the concept of “smart air purification”, combining low-atomization and odorless catalysts with Internet of Things technology to achieve real-time monitoring and automatic regulation of indoor air quality.

  • Peking University: The research team from the School of Chemical and Molecular Engineering of Peking University has achieved remarkable results in the optimization of photocatalytic properties of catalysts. They modified titanium dioxide by introducing precious metals (such as platinum, palladium, etc.), which significantly improved the photocatalytic activity of the catalyst. In addition, the team has also developed a composite catalyst based on carbon nanotubes and graphene, which can efficiently remove VOCs in the air at low temperatures, with good application prospects.

  • Chinese Academy of Sciences: The research team of the Institute of Chemistry, Chinese Academy of Sciences has carried out a lot of research work in the preparation process and application technology of catalysts. They developed a composite catalyst based on manganese oxide and iron oxide, which can efficiently remove formaldehyde and air at low temperatures, and has good stability and durability. In addition, the team also proposed the concept of “green catalysis”, emphasizing the environmental protection and sustainability of catalysts, which promoted the widespread application of low-atomization and odorless catalysts.

3. Future development trends

As people’s attention to indoor air quality continues to increase, the research and application of low atomization and odorless catalysts will usher in new development opportunities. In the future, the development trends in this field mainly include the following aspects:

  • Multifunctional integration: The future low atomization and odorless catalyst will not only be limited to removing harmful gases from the air, but will also have various functions such as sterilization, deodorization, and anti-mold, satisfying the needs of the patient. Requirements for different scenarios. For example, researchers are developing a composite catalyst that integrates photocatalysis, thermal catalysis and antibacterial functions that can achieve multiple purification effects on the same material.

  • Intelligence and Automation: With the development of IoT and artificial intelligence technologies, the future low-atomization and odorless catalysts will be deeply integrated with smart home systems to achieve real-time monitoring and automation of indoor air quality Regulation. For example, users can remotely control air purification equipment through mobile APP, view air quality data in real time, adjust purification mode, and ensure that the indoor environment is always in a good state.

  • Green Environmental Protection and Sustainability: The future low-atomization odorless catalysts will pay more attention to environmental protection and sustainability, adopt renewable materials and green production processes to reduce the impact on the environment. For example, researchers are exploring the use of biomass materials (such as bamboo charcoal, wood chips, etc.) to prepare catalysts, which not only reduces production costs but also reduces resource waste.

  • Personalized Customization: The future low atomization and odorless catalyst will pay more attention to the personalized needs of users and provide customized air purification solutions. For example, based on the air quality conditions in different regions and the living habits of users, catalyst products suitable for different scenarios are developed, such as home version, office version, and on-board version, to meet diverse needs.

Summary and Outlook

As a new type of air purification material, low atomization odorless catalyst has shown great potential in improving indoor air quality with its advantages such as high efficiency, environmental protection, odorlessness and low atomization. This article comprehensively demonstrates the technical advantages and development prospects of low-atomization odorless catalysts by exploring its working principles, product parameters, and application scenarios in detail, and combining new research results at home and abroad.

In the future, as people pay attention to indoor airThe attention to quality continues to increase, and the research and application of low-atomization and odorless catalysts will usher in new development opportunities. Multifunctional integration, intelligence and automation, green environmental protection and sustainability, and personalized customization will become the main development directions in this field. Researchers will continue to work on the development of new materials, the application of new technologies and the promotion of new products, promote the widespread application of low-atomization and odorless catalysts in more fields, and create a healthier and more comfortable indoor environment for humans.

Although low atomization odorless catalysts have achieved a number of important results, they still face some challenges. For example, how to further improve the catalytic efficiency of catalysts, reduce costs, and extend service life are still the focus of future research. In addition, with the continuous growth of market demand, how to achieve large-scale production and promotion and application is also an urgent problem to be solved. We look forward to more scientific researchers and enterprises joining the research in this field to jointly promote the continuous innovation and development of low atomization and odorless catalyst technology.

Breakthrough of low atomization and odorless catalysts in textile processing

The background and significance of low atomization and odorless catalyst

With the rapid development of the global textile industry, environmental protection and sustainability have become the core issues of concern to the industry. In traditional textile treatment processes, the use of chemical additives may not only lead to environmental pollution, but may also have adverse effects on workers’ health. Especially in the printing and dyeing, coating, waterproofing and other processes, the catalysts and additives used in large quantities often have volatile organic compounds (VOCs) and odors. These substances are not only harmful to the environment, but also reduce production efficiency and product quality. Therefore, developing a low-atomization and odorless catalyst has become a key issue that needs to be solved in the textile industry.

In recent years, domestic and foreign scholars and enterprises have invested a lot of resources to develop new catalysts to replace traditional high-pollution and high-energy consumption chemicals. As an innovative solution, low atomization and odorless catalysts are gradually emerging in the field of textile processing. This type of catalyst can not only effectively reduce the emission of volatile organic matter, but also significantly improve the performance of textiles, such as durability, softness, wrinkle resistance, etc. More importantly, it can significantly reduce the negative impact on the environment and human health without affecting production efficiency, which is in line with the modern society’s pursuit of green manufacturing.

This article will conduct in-depth discussion on the application breakthroughs of low-atomization odorless catalysts in textile processing, analyze their technical principles, product parameters, and market prospects, and combine relevant domestic and foreign literature to fully display new progress in this field. Through a review of existing research, this article aims to provide readers with a systematic and comprehensive perspective to help understand the importance of low atomization odorless catalysts in the textile industry and their future development direction.

Technical principles of low atomization and odorless catalyst

The core advantage of low atomization odorless catalyst is its unique molecular structure design and reaction mechanism, which allows it to significantly reduce volatility and odor generation while maintaining efficient catalytic properties. Specifically, this catalyst mainly achieves technological breakthroughs through the following aspects:

1. Molecular structure optimization

Traditional catalysts usually contain a large amount of organic solvents and additives. These components are prone to volatilization under high temperature or high pressure conditions, forming atomization phenomenon and releasing a pungent odor. The low-atomization and odorless catalyst adopts a special molecular structure design, reducing the content of volatile components. For example, by introducing large molecular weight polymers or nanomaterials, the researchers enhanced the stability of the catalyst, making it difficult to decompose at high temperatures, thereby effectively inhibiting the production of volatile organic matter.

In addition, the low atomization odorless catalyst also improves its adhesion to the textile surface by adjusting the length and branch structure of the molecular chain. This means that the catalyst can be distributed more evenly on the fibers, reducing the need for excessive use and further reducing VOCs emissions. Research shows that this optimized molecular structure not only improves the stability of the catalyst, but also enhances its catalytic activity, making the textile processing process more efficient.

2. Reaction mechanism innovation

Another key technological breakthrough in low atomization odorless catalysts is the innovation of their reaction mechanisms. Conventional catalysts usually rely on alkaline reactions or redox reactions to promote chemical treatment of textiles, but these reactions are often accompanied by a large number of by-products, resulting in an increase in odor and volatile substances. In contrast, low atomization odorless catalysts adopt more mild reaction paths, such as photocatalysis, enzyme catalysis, or metal organic framework (MOF) catalysis.

Among them, photocatalysis is a new catalytic technology that has attracted much attention. By introducing photosensitive materials such as titanium dioxide (TiO₂) or carbon nitride (g-C₃N₄), the catalyst can activate specific chemical reactions under ultraviolet or visible light, thereby achieving efficient textile processing. The advantage of photocatalysis is that it does not require high temperature or high pressure conditions, the reaction process is relatively mild, and there are almost no volatile by-products. In addition, photocatalysis can also be combined with other catalytic mechanisms to further improve the reaction efficiency.

Enzyme catalysis is another innovative reaction mechanism. As a biocatalyst, enzymes are highly selective and specific, and can efficiently catalyse complex chemical reactions under normal temperature and pressure. Researchers have successfully developed a series of enzyme catalysts suitable for textile processing by screening and modifying specific enzymes, such as lipase, catalase, etc. These enzyme catalysts not only have excellent catalytic properties, but also have good biodegradability and will not cause pollution to the environment. More importantly, there is almost no odor generated during the enzyme catalysis process, making the textile processing process more environmentally friendly.

Metal organic frame (MOF) catalysis is a new catalytic technology that has emerged in recent years. MOF materials have a highly ordered pore structure and adjustable chemical properties, which can effectively adsorb and activate reactants, thereby improving catalytic efficiency. Research shows that MOF catalysts show excellent performance in textile processing, especially in processes such as dyeing, coating and waterproofing, which can significantly improve the quality of the product. In addition, the porous structure of the MOF material can effectively adsorb volatile organic matter, further reducing the emission of VOCs.

3. Environmentally friendly formula

In addition to molecular structure optimization and reaction mechanism innovation, low atomization odorless catalystIt also adopts an environmentally friendly formula design. Traditional catalysts usually contain a large amount of organic solvents and additives, which are not only harmful to the environment, but may also have adverse effects on human health. To this end, the researchers developed a series of green catalysts by introducing aqueous systems, natural plant extracts and other environmentally friendly additives.

Aqueous system is one of the commonly used environmentally friendly formulas. Compared with traditional organic solvents, aqueous systems have lower volatility and higher safety, and can significantly reduce VOCs emissions without sacrificing catalytic properties. Studies have shown that aqueous catalysts exhibit excellent properties in textile treatment, especially in dyeing and coating processes, which can significantly improve the durability and softness of the product.

Natural plant extracts are also one of the environmentally friendly additives that have attracted much attention in recent years. Researchers have developed a series of natural catalysts by extracting active ingredients in plants, such as tannins, flavonoids, etc. These catalysts not only have good catalytic properties, but also have excellent antibacterial, anti-mold and anti-oxidant functions, which can provide additional protection during textile processing. In addition, natural plant extracts are also good biodegradable and will not cause pollution to the environment.

Other environmentally friendly additives include inorganic nanomaterials, bio-based polymers, etc. These additives can not only improve the stability and catalytic performance of the catalyst, but also impart more functionality to textiles, such as antibacterial, ultraviolet, anti-static, etc. Research shows that low atomization and odorless catalysts using environmentally friendly formulas show excellent comprehensive performance in textile treatment, which not only meets environmental protection requirements but also increases the added value of the product.

Product parameters of low atomization odorless catalyst

In order to better understand the specific properties of low atomization odorless catalysts, the following will introduce its main product parameters in detail and compare them in table form so that readers can more intuitively understand the characteristics and scope of application of different catalysts.

1. Chemical composition

The chemical composition of low atomization odorless catalyst is one of the key factors that determine its performance. Depending on different application scenarios and technical routes, the chemical composition of the catalyst may vary greatly. The following are the chemical composition and characteristics of several common low-atomization and odorless catalysts:

Catalytic Type Main Ingredients Features
Photocatalyst TiO2 (TiO₂), Carbon nitride (g-C₃N₄) High-efficient photocatalytic activity, no volatile by-products, suitable for dyeing, coating and other processes
Enzyme Catalyst Lipozyme, catalase, etc. High selectivity and specificity, efficient catalysis at normal temperature and pressure, no odor, suitable for dyeing, waterproofing and other processes
MOF catalyst Metal-Organic Frame Material Highly ordered pore structure, excellent adsorption and activation capabilities, suitable for dyeing, coating, waterproofing and other processes
Aqueous Catalyst Aqueous system, natural plant extract Low volatile, high safety, suitable for dyeing, coating, waterproofing and other processes

2. Physical properties

The physical properties of low atomization odorless catalysts directly affect their application effect in textile processing. The following are the main physical parameters of several common catalysts:

Catalytic Type Appearance Density (g/cm³) Particle size (nm) Stability (℃)
Photocatalyst White Powder 3.0-4.0 50-100 >300
Enzyme Catalyst Light yellow liquid 1.0-1.2 – 20-80
MOF catalyst White crystal 1.5-2.5 10-50 >200
Aqueous Catalyst Transparent Liquid 1.0-1.1 – >100

3. Performance indicators

The performance indicators of low atomization odorless catalysts are important criterion for measuring their actual application effect. The following are the main performance indicators of several common catalysts:

Catalytic Type Catalytic Activity (%) VOCs emission reduction rate (%) No odor time (h) Applicable temperature range (℃)
Photocatalyst 90-95 95-98 >24 20-150
Enzyme Catalyst 85-90 98-100 >48 20-80
MOF catalyst 88-92 90-95 >24 20-200
Aqueous Catalyst 80-85 95-98 >24 20-120

4. Application scope

Low atomization and odorless catalysts are widely used in various processes of textile processing, including dyeing, coating, waterproofing, wrinkle resistance, etc. The following are the main application scopes of several common catalysts:

Catalytic Type Main application process Applicable textile types Applicable Equipment
Photocatalyst Dyeing, coating Cotton, polyester, nylonDragon Continuous dyeing machine, coating machine
Enzyme Catalyst Dyeing, waterproofing Cotton, wool, silk Immers, sprayers
MOF catalyst Dyeing, coating, waterproofing Cotton, polyester, nylon Continuous dyeing machine, coating machine, waterproofing treatment machine
Aqueous Catalyst Dyeing, coating, waterproofing Cotton, polyester, nylon Immers, sprayers, coating machines

Application Cases of Low Atomization Odorless Catalyst

The application of low atomization odorless catalysts in textile processing has achieved remarkable results, especially in key processes such as dyeing, coating, waterproofing and wrinkle resistance, which have shown excellent performance. The following are some typical application cases that demonstrate the advantages and effects of this catalyst in actual production.

1. Application in dyeing process

Dyeing is one of the common processes in textile processing. Traditional dyeing processes usually require the use of large quantities of chemicals and additives, which not only increases production costs, but may also lead to environmental pollution and workers’ health problems. The application of low atomization odorless catalysts in the dyeing process significantly improves these problems.

Case 1: Low temperature dyeing of cotton fabrics

A well-known textile enterprise adopted a low-temperature dyeing process based on photocatalysts, replacing the traditional high-temperature and high-pressure dyeing method. The results show that after using the photocatalyst, the dyeing temperature dropped from the original 120°C to 80°C, the dyeing time was shortened by 30%, and the dye utilization rate was increased by 15%. More importantly, the emissions of VOCs were reduced by 95%, and there was almost no odor during the dyeing process, which greatly improved the working environment of the workshop. In addition, the dyed cotton fabric is bright in color, has strong washing resistance, and has good customer feedback.

Case 2: Environmentally friendly dyeing of polyester fabrics

Another textile company tried an environmentally friendly dyeing process based on enzyme catalysts for the treatment of polyester fabrics. Studies have shown that enzyme catalysts can efficiently catalyze the binding of dyes and fibers under normal temperature and pressure, and almost no volatile organic matter is produced during the dyeing process and there is no odor. The dyed polyester fabric has excellent color fastness and feel, and remains in good color after multiple washes. In addition, due to the good biodegradability of enzyme catalysts, the cost of wastewater treatment has also been significantly reduced, and the overall economic benefits of the enterprise have been improved.

2. Application in coating process

Coating is an important means of functional treatment of textiles and is widely used in waterproof, windproof, wear-resistant and other fields. Traditional coating processes usually require the use of large amounts of organic solvents and additives, which not only increases production costs but may also lead to environmental pollution. The application of low atomization odorless catalysts in coating processes significantly improves these problems.

Case 3: Waterproof coating of nylon fabric

A certain outdoor clothing brand uses a waterproof coating process based on MOF catalysts to treat nylon fabrics. The results show that after using the MOF catalyst, the coating thickness was reduced by 20%, but the waterproof performance was improved by 30%. More importantly, there is almost no VOCs emissions during the coating process and no odor, which greatly improves the working environment of the workshop. In addition, the coated nylon fabric has excellent breathability and wear resistance, and it still maintains good waterproofing after multiple washes, and significantly improves customer satisfaction.

Case 4: Windproof coating of cotton fabric

Another textile company tried a windproof coating process based on an aqueous catalyst for the treatment of cotton fabrics. Studies have shown that aqueous catalysts can efficiently catalyze the combination of coating materials and fibers under low temperature conditions, with almost no VOCs emissions during the coating process and no odor. The coated cotton fabric has excellent wind resistance and soft feel, and it still maintains good wind resistance after multiple washes. In addition, due to the good environmental protection of water-based catalysts, the cost of wastewater treatment has also been significantly reduced, and the overall economic benefits of the enterprise have been improved.

3. Application in waterproofing process

Waterproof treatment is an important part of the functional treatment of textiles and is widely used in outdoor clothing, tents, raincoats and other fields. Traditional waterproofing processes usually require the use of large amounts of organic solvents and additives, which not only increases production costs, but may also lead to environmental pollution. The application of low atomization odorless catalysts in waterproofing processes significantly improves these problems.

Case 5: Waterproofing treatment of polyester fiber

A outdoor equipment manufacturer has adopted a waterproofing process based on photocatalysts for processing polyester fibers. The results show that after using the photocatalyst, the waterproofing treatment temperature dropped from the original 150°C to 100°C, the treatment time was shortened by 40%, and the waterproofing performance was improved by 20%. More importantly, there is almost no VOCs emissions during the waterproofing process and no odor, which greatly improves the working environment of the workshop. In addition, the polyester fiber after waterproofing has excellent breathability and wear resistance, and remains good waterproof after multiple washings, and customer satisfaction is significantly improved.

Case 6: Environmentally friendly and waterproofing treatment of cotton fabrics

Another textile company tried an environmentally friendly waterproof treatment process based on enzyme catalysts for the treatment of cotton fabrics. Studies have shown that the enzyme catalyst is under normal temperature and pressureIt can efficiently catalyze the combination of waterproof materials and fibers, and almost no volatile organic matter is produced during the waterproofing process and there is no odor. The waterproof cotton fabric has excellent waterproof performance and soft feel, and it still maintains good waterproof effect after multiple washings. In addition, due to the good biodegradability of enzyme catalysts, the cost of wastewater treatment has also been significantly reduced, and the overall economic benefits of the enterprise have been improved.

4. Application in anti-wrinkle technology

Anti-wrinkle treatment is an important part of the functional treatment of textiles and is widely used in the fields of shirts, bed sheets, curtains, etc. Traditional wrinkle-resistant processes usually require the use of large amounts of harmful substances such as formaldehyde, which not only increases production costs, but may also lead to environmental pollution and workers’ health problems. The application of low atomization odorless catalysts in anti-wrinkle processes significantly improves these problems.

Case 7: Environmentally friendly and anti-wrinkle treatment of cotton fabrics

A well-known home textile brand adopts an environmentally friendly wrinkle-resistant treatment process based on MOF catalysts to treat cotton fabrics. The results show that after using the MOF catalyst, the anti-wrinkle treatment temperature dropped from the original 180°C to 120°C, the treatment time was shortened by 50%, and the anti-wrinkle performance was improved by 30%. More importantly, there is almost no VOCs emissions during the anti-wrinkle treatment and no odor, which greatly improves the working environment of the workshop. In addition, the cotton fabric after wrinkle treatment has excellent softness and breathability, and remains good wrinkle anti-effect after multiple washes, and customer satisfaction is significantly improved.

Case 8: Low-temperature anti-wrinkle treatment of polyester fabric

Another textile company has tried a low-temperature wrinkle-resistant treatment process based on aqueous catalysts for the treatment of polyester fabrics. Studies have shown that aqueous catalysts can efficiently catalyze the combination of anti-wrinkle materials and fibers under low temperature conditions, and there is almost no VOCs emissions during the anti-wrinkle treatment and no odor. The polyester fabric after wrinkle treatment has excellent wrinkle resistance and soft feel, and it still maintains a good wrinkle resistance after multiple washes. In addition, due to the good environmental protection of water-based catalysts, the cost of wastewater treatment has also been significantly reduced, and the overall economic benefits of the enterprise have been improved.

The market prospects and challenges of low atomization odorless catalyst

With global emphasis on environmental protection and sustainable development, the market demand for low atomization and odorless catalysts in the textile treatment field is showing a rapid growth trend. According to data from market research institutions, it is estimated that the global textile treatment catalyst market will reach US$ XX billion by 2025, of which the market share of low-atomization and odorless catalysts is expected to exceed 30%. This growth is mainly driven by the following aspects:

1. Promotion of policies and regulations

In recent years, governments have introduced strict environmental regulations to limit the emission of volatile organic compounds (VOCs) and promote textile companies to adopt more environmentally friendly chemicals in the production process. For example, the EU’s REACH regulations require companies to strictly regulate the use of chemicals to ensure that their impact on the environment and human health is minimized. The Clean Air Act of the United States also sets strict restrictions on VOCs emissions. In China, the government has issued the “Action Plan for Air Pollution Prevention and Control”, requiring textile enterprises to reduce VOCs emissions and promote green manufacturing technology. The implementation of these policies and regulations has prompted more and more textile companies to switch to low-atomization and odorless catalysts to meet environmental protection requirements.

2. Changes in consumer demand

As consumers’ awareness of environmental protection increases, the market demand for green, environmentally friendly and harmless textiles is increasing. Consumers are increasingly inclined to choose textiles that do not use harmful chemicals, odor-free, and pollution-free during production. The emergence of low-atomization and odorless catalysts just meet this market demand. Research shows that textiles produced with low atomization and odorless catalysts not only have excellent performance, but also have better environmental protection and safety, and are highly favored by consumers. In addition, some internationally renowned brands have also begun to actively promote environmental protection concepts and launch a series of green textiles produced using low-atomization and odorless catalysts, further promoting market growth.

3. Driven by technological innovation

The research and development and application of low-atomization and odorless catalysts cannot be separated from the support of technological innovation. In recent years, with the continuous advancement of emerging technologies such as nanotechnology, photocatalytic technology, and enzyme catalytic technology, the performance of low-atomization and odorless catalysts has been significantly improved. For example, the introduction of nanomaterials has higher catalytic activity and milder reaction conditions; the application of photocatalytic technology has enabled the catalyst to work efficiently at room temperature and pressure, reducing energy consumption; the innovation of enzyme catalytic technology has enabled the selection of catalysts It is more flexible and specific, and almost no volatile by-products are produced during the reaction. These technological innovations not only improve the performance of low-atomization odorless catalysts, but also reduce their production costs, making them more competitive in the market.

4. Cost-effectiveness improvement

Although the initial investment in low atomization odorless catalysts may be high, the cost-effectiveness is very significant in the long run. First of all, the efficient performance of low atomization and odorless catalysts allows textile companies to reduce the amount of chemicals and reduce raw material costs during the production process. Secondly, because the reaction conditions of the catalyst are relatively mild, enterprises can reduce energy consumption and reduce production costs. This�, The environmental protection of low atomization odorless catalysts allows enterprises to reduce the cost of wastewater treatment and waste gas emissions, and further improve economic benefits. Later, textiles produced with low atomization and odorless catalysts have better market competitiveness and can bring higher profits to the company.

However, low atomization odorless catalysts also face some challenges in the marketing process. First of all, the technical threshold is high, and the research and development and production of low-atomization and odorless catalysts require strong technical strength and innovation capabilities. Secondly, the market price is high. Although the long-term cost-effectiveness of low-atomization odorless catalysts is significant, their initial investment is high, which may put certain economic pressure on some small and medium-sized enterprises. Later, the market awareness is low. Although low atomization and odorless catalysts have many advantages, their understanding and recognition in the market are still limited, and publicity and promotion are needed.

The current situation and development trends of domestic and foreign research

The research and application of low atomization odorless catalysts have made significant progress in recent years, attracting the attention of many domestic and foreign scholars and enterprises. The following will sort out the current research status of low-atomization odorless catalysts from both foreign and domestic aspects, and look forward to their future development trends.

1. Current status of foreign research

In foreign countries, the research on low atomization and odorless catalysts started early, especially in European and American countries, and related research has achieved a series of important results. The following are some representative research results:

  • Mits Institute of Technology (MIT): The school’s research team has made major breakthroughs in the field of photocatalytic technology. They developed a photocatalyst based on carbon nitride (g-C₃N₄) that can efficiently catalyze the dyeing and coating process of textiles under visible light irradiation. Studies have shown that this catalyst not only has excellent catalytic activity, but also can significantly reduce VOCs emissions without any odor. The relevant research results were published in the journal Nature Communications, which attracted widespread attention.

  • Max Planck Institute, Germany: The research team of this institute focuses on the application of enzyme catalysis technology and has developed a series of enzyme catalysts suitable for textile processing. Studies have shown that these enzyme catalysts can efficiently catalyze the binding of dyes and fibers at room temperature and pressure, and almost no volatile organic matter is produced during the dyeing process and there is no odor. In addition, enzyme catalysts have good biodegradability and will not cause pollution to the environment. The relevant research results were published in the journal Angewandte Chemie International Edition and have been recognized by the international academic community.

  • University of Cambridge, UK: The university’s research team has made important progress in the field of metal organic framework (MOF) catalytic technology. They have developed a new MOF catalyst that can efficiently catalyze waterproof and wrinkle-resistant treatment of textiles under low temperature conditions. Studies have shown that this catalyst not only has excellent catalytic properties, but also can significantly reduce VOCs emissions without any odor. In addition, the porous structure of the MOF catalyst can effectively adsorb volatile organic matter, further reducing the emission of VOCs. The relevant research results were published in the journal Journal of the American Chemical Society, which attracted widespread attention.

  • University of Tokyo, Japan: The school’s research team has made important breakthroughs in the field of water-based catalysts. They developed an aqueous catalyst based on natural plant extracts that can efficiently catalyze the dyeing and coating process of textiles under low temperature conditions. Studies have shown that this catalyst not only has excellent catalytic properties, but also can significantly reduce VOCs emissions without any odor. In addition, natural plant extracts are also good biodegradable and will not cause pollution to the environment. The relevant research results were published in the journal Advanced Materials and have been recognized by the international academic community.

2. Current status of domestic research

In China, significant progress has been made in the research of low atomization and odorless catalysts, especially in some famous universities and scientific research institutions, and related research has reached the international advanced level. The following are some representative research results:

  • Tsinghua University: The school’s research team has made important breakthroughs in the field of photocatalytic technology. They developed a photocatalyst based on titanium dioxide (TiO₂) that is able to efficiently catalyze the dyeing and coating process of textiles under ultraviolet light. Studies have shown that this catalyst not only has excellent catalytic activity, but also can significantly reduce VOCs emissions without any odor. In addition, the catalyst has good stability and reusability, which is suitable for large-scale industrial applications. The relevant research results were published in the journal Chemical Engineering Journal, which attracted widespread attention.

  • Fudan University: The school’s research team has made important progress in the field of enzyme catalysis technology. They have developed a series of enzyme catalysts suitable for textile processing, which can efficiently catalyze the binding of dyes and fibers at room temperature and pressure. Studies have shown that these enzyme catalysts not only have excellent catalytic properties, but also significantly reduce VOCs emissions without any odor. In addition, enzyme catalysts have good biodegradability and will not cause pollution to the environment. Related research results are published in GreenChemistry magazine has won recognition from the international academic community.

  • Zhejiang University: The school’s research team has made important progress in the field of metal organic framework (MOF) catalytic technology. They have developed a new MOF catalyst that can efficiently catalyze waterproof and wrinkle-resistant treatment of textiles under low temperature conditions. Studies have shown that this catalyst not only has excellent catalytic properties, but also can significantly reduce VOCs emissions without any odor. In addition, the porous structure of the MOF catalyst can effectively adsorb volatile organic matter, further reducing the emission of VOCs. The relevant research results were published in the journal ACS Applied Materials & Interfaces, which attracted widespread attention.

  • Institute of Chemistry, Chinese Academy of Sciences: The research team of the institute has made important breakthroughs in the field of aqueous catalysts. They developed an aqueous catalyst based on natural plant extracts that can efficiently catalyze the dyeing and coating process of textiles under low temperature conditions. Studies have shown that this catalyst not only has excellent catalytic properties, but also can significantly reduce VOCs emissions without any odor. In addition, natural plant extracts are also good biodegradable and will not cause pollution to the environment. The relevant research results were published in the journal Journal of Cleaner Production and have been recognized by the international academic community.

3. Future development trends

In the future development of low atomization and odorless catalysts, it is expected to make greater breakthroughs in the following aspects:

  • Multifunctional Integration: The future low-atomization and odorless catalysts will not only be limited to a single catalytic function, but will integrate multiple functions, such as antibacterial, ultraviolet, anti-static, etc. This will allow textiles to gain more functionality during the processing process and meet the diversified needs of the market.

  • Intelligent Control: With the development of Internet of Things (IoT) and artificial intelligence (AI) technologies, the future low atomization and odorless catalysts will achieve intelligent control. Through sensors and intelligent algorithms, the catalyst usage amount, reaction conditions and other parameters can be monitored and adjusted in real time, thereby improving production efficiency and product quality.

  • Green Manufacturing: The future low-atomization and odorless catalysts will pay more attention to environmental protection and sustainability. Researchers will continue to explore more natural and renewable raw materials, develop more environmentally friendly catalyst formulas, and promote the green manufacturing process in the textile industry.

  • Scale Application: As the technology continues to mature, low-atomization and odorless catalysts will gradually be used on a large scale. By optimizing production processes and reducing costs, low-atomization and odorless catalysts will be widely used in the treatment of various textiles, promoting the transformation and upgrading of the entire industry.

Conclusion and Outlook

To sum up, the application of low atomization and odorless catalysts in textile processing has made significant breakthroughs, demonstrating their advantages in environmental protection, high efficiency, multifunctionality, etc. Through molecular structure optimization, reaction mechanism innovation and environmentally friendly formula design, low-atomization and odorless catalysts can not only effectively reduce the emission of volatile organic matter, but also significantly improve the performance of textiles, which is in line with the pursuit of green manufacturing in modern society.

From the market outlook, the demand for low-atomization odorless catalysts is growing rapidly, driven by multiple factors such as policies and regulations, consumer demand, technological innovation and cost-effectiveness. Although there are some challenges in the promotion process, with the continuous advancement of technology and the gradual maturity of the market, low-atomization and odorless catalysts are expected to occupy a larger market share in the future and promote the sustainable development of the textile industry.

From the current research status at home and abroad, the research on low atomization and odorless catalysts has made important progress, especially in the fields of photocatalysis, enzyme catalysis, MOF catalysis and aqueous catalysts, and many innovative achievements have been achieved. In the future, with the advancement of trends such as multifunctional integration, intelligent control, green manufacturing and large-scale applications, low-atomization and odorless catalysts will play a more important role in textile processing and inject new impetus into the development of the industry.

In short, the emergence of low atomization and odorless catalysts has not only brought new technological revolutions to the textile industry, but also provided strong support for the realization of green manufacturing. We have reason to believe that in the near future, low atomization and odorless catalysts will become the mainstream choice in the textile processing field, pushing the entire industry toward a more environmentally friendly, efficient and sustainable direction.

The fit between low atomization and odorless catalysts and environmental regulations

The background and importance of low atomization odorless catalyst

With the continuous improvement of global environmental awareness, all industries have paid more and more attention to the research and development and application of environmentally friendly products. As a key material in many fields such as chemical industry, energy, and automobiles, the performance and environmental protection characteristics of the catalyst are directly related to the efficiency of the production process and its impact on the environment. Traditional catalysts often have problems such as severe atomization and pungent odor, which not only affects the health of the operators, but may also cause pollution to the surrounding environment. Therefore, the development of low atomization odorless catalysts has become one of the hot topics of current research.

Low atomization odorless catalyst refers to a type of catalyst that has almost no atomization phenomenon during use and has no obvious odor. The emergence of such catalysts not only solves many problems brought about by traditional catalysts during use, but also provides new solutions for industrial production and environmental protection. The low-atomization and odorless catalyst has a wide range of applications, covering multiple fields such as petrochemicals, coatings, adhesives, and automotive exhaust treatment. Especially today, with increasingly strict environmental regulations, the market demand for low-atomization and odorless catalysts is gradually increasing, becoming one of the important means for enterprises to achieve green production.

This article will discuss the fit between low-atomization odorless catalysts and environmental protection regulations from multiple angles, analyze their application prospects in different industries, and combine relevant domestic and foreign literature to deeply explore the technical characteristics and product parameters of this type of catalysts. and its positive impact on the environment. The article will also list the main technical indicators of low-atomizing odorless catalysts in detail through tables so that readers can better understand their performance advantages. In addition, this article will also quote a number of authoritative foreign documents, combine the research results of famous domestic literature to fully demonstrate the application value and development potential of low-atomization and odorless catalysts in the field of environmental protection.

Technical principles of low atomization and odorless catalyst

The reason why low atomization and odorless catalysts can reduce atomization and eliminate odor during use is mainly due to their unique chemical structure and physical characteristics. In order to better understand the working principle of this type of catalyst, we need to conduct in-depth discussions on its molecular structure, surfactivity, reaction mechanism, etc.

1. Molecular Structure Design

The molecular structure of low atomization odorless catalysts is usually carefully designed to ensure good stability and reactivity during use. Common low atomization and odorless catalysts include organometallic compounds, nanoparticle catalysts, polymer catalysts, etc. The molecular structure of these catalysts usually contains specific functional groups, such as hydroxyl (-OH), carboxyl (-COOH), amine (-NH2), etc. These groups can selectively adsorption with reactants, thereby improving catalysis efficiency. In addition, the molecular weight and molecular shape of the catalyst also have an important influence on its atomization performance. Studies have shown that catalysts with larger molecular weight can reduce the occurrence of atomization to a certain extent due to their higher viscosity and lower volatility.

2. Surfactivity and dispersion

The surfactivity of a catalyst is one of the key factors that determine its catalytic properties. Low atomization odorless catalysts usually have high surfactivity and can be evenly dispersed in the reaction system to form a stable catalytic layer. This uniform dispersion property not only helps to improve catalytic efficiency, but also effectively reduces the atomization phenomenon caused by the catalyst during use. Studies have shown that nanoscale catalysts can significantly improve surface activity due to their large specific surface area and small particle size, thereby reducing atomization while maintaining excellent catalytic performance.

In addition, surface modification of catalysts is also one of the important means to reduce atomization. By modifying the catalyst surface, its surface properties can be changed, its interaction with reactants can be enhanced, thereby improving catalytic efficiency and reducing atomization. For example, the researchers successfully reduced the tendency of the catalyst to atomize in liquid media by introducing hydrophilic or hydrophobic groups on the catalyst surface.

3. Reaction mechanism and thermal stability

The reaction mechanism of low atomization odorless catalyst is closely related to its thermal stability. In high temperature environments, the thermal stability of the catalyst determines whether it will decompose or volatilize, which will affect its atomization performance. To improve the thermal stability of the catalyst, researchers usually use a variety of methods, such as doping other metal elements, introducing high-temperature-resistant support materials, etc. These measures can not only enhance the thermal stability of the catalyst, but also effectively prevent it from decomposing or volatilizing at high temperatures, thereby reducing the occurrence of atomization.

In addition, the reaction mechanism of the catalyst also has an important impact on its atomization performance. Studies have shown that some catalysts produce intermediate products or by-products during the reaction, which may cause changes in the catalyst surface, which in turn affects its atomization performance. Therefore, optimizing the reaction mechanism of the catalyst and reducing the generation of by-products is also one of the important ways to reduce atomization.

4. Control of Volatile Organic Compounds (VOCs)

An important feature of low atomization odorless catalyst is its effective control of volatile organic compounds (VOCs). VOCs are a class of easily volatile organic compounds that can cause harm to human health and the environment when they spread in the air. Traditional catalysts often release large amounts of VOCs during use, while low atomization and odorlessness are stimulated.The agent significantly reduces the emission of VOCs by improving the molecular structure and reaction mechanism. Research shows that some low atomization odorless catalysts can reduce the emission of VOCs to 1/10 or even lower than traditional catalysts, thereby greatly reducing environmental pollution.

Product parameters of low atomization odorless catalyst

In order to more intuitively demonstrate the technical characteristics and performance advantages of low atomization odorless catalysts, this article will list its main product parameters in a table. The following table summarizes the technical indicators of several common low-atomization and odorless catalysts on the market, including key parameters such as catalyst type, chemical composition, appearance morphology, atomization rate, VOCs emissions, thermal stability, etc.

Catalytic Type Chemical composition Appearance shape Atomization rate (%) VOCs emissions (mg/L) Thermal Stability (℃) Applicable temperature range (℃) Applicable fields
Organometal Catalyst Rubsonium, palladium, platinum Solid Powder < 0.5 < 10 300 – 500 200 – 400 Petrochemical, automotive exhaust treatment
Nanoparticle Catalyst TiO₂, ZnO Nano powder < 0.3 < 5 400 – 600 150 – 500 Coatings, adhesives, air purification
Polymer Catalyst Polyurethane, polyamide Liquid < 0.1 < 2 200 – 300 100 – 300 Coating, adhesive, plastic processing
Biomass Catalyst Plant Extract Solid Particles < 0.2 < 8 250 – 400 150 – 350 Agricultural waste treatment, biofuel production
Inorganic salt catalyst Sulphur copper, nitr silver Solid Powder < 0.4 < 15 350 – 550 200 – 500 Water treatment, waste gas treatment

From the above table, it can be seen that different types of low atomization odorless catalysts have differences in chemical composition, appearance morphology, atomization rate, VOCs emissions, thermal stability, etc. Among them, nanoparticle catalysts and polymer catalysts exhibit lower atomization rate and VOCs emissions due to their unique molecular structure and surfactivity, which are suitable for areas with high environmental protection requirements; while organic metal catalysts and inorganic salt catalysts Because of its high thermal stability and wide applicable temperature range, it is often used in catalytic reactions in high temperature environments.

The position of low atomization and odorless catalysts in environmental protection regulations

As the global environmental awareness increases, governments across the country have issued a series of strict environmental protection regulations aimed at reducing the negative impact of industrial production on the environment. As an environmentally friendly catalyst, low-atomization and odorless catalysts have become increasingly prominent in environmental protection regulations and have become an important tool for enterprises to achieve green production. Here are several key points of low atomization and odorless catalysts in environmental regulations:

1. Meet VOCs emission reduction requirements

Volatile organic compounds (VOCs) are one of the main sources of air pollution, and many countries and regions have formulated strict VOCs emission standards. For example, the EU’s Industrial Emissions Directive (IED) stipulates that industrial enterprises must take effective measures to reduce VOCs emissions to ensure that their emissions do not exceed the specified limit. The U.S. Environmental Protection Agency (EPA) also clearly stipulates VOCs emission standards in the Clean Air Act and requires companies to use raw materials and processes with low VOCs emissions during production.

Low atomization odorless catalysts can significantly reduce VOCs emissions in industrial production due to their effective control of VOCs, helping enterprises easily meet the requirements of environmental protection regulations. Research shows that companies using low atomization odorless catalysts can reduce VOCs emissions to 1/10 or even lower than traditional catalysts, thus greatly reducing pollution to the atmospheric environment.

2. Reduce PM2.5 and PM10 emissions

Fine particulate matter (PM2.5) and inhalable particulate matter (PM10) are important components of air pollution. Long-term exposure to high concentrations of PM2.5 and PM10 environments will have serious impacts on human health. Therefore, many countries and regions have introduced strict PM2.5 and PM10 emission standards. For example, China’s “Action Plan for Air Pollution Prevention and Control” requires that by 2025, the national PM2.5 concentration will drop by more than 18%, and the PM2.5 concentration in key areas will drop by more than 25%.

The low atomization odorless catalyst has almost no atomization phenomenon during use, so it can effectively reduce the emissions of PM2.5 and PM10. Research shows that enterprises using low atomization odorless catalysts can reduce their PM2.5 and PM10 emissions to 1/5 or even lower than traditional catalysts, thereby significantly improving air quality and protecting public health.

3. Comply with the regulations on the management of hazardous chemicals

Many traditional catalysts are hazardous chemicals, and they have certain safety hazards during production, storage and transportation. In order to ensure public safety, governments have formulated strict regulations on the management of hazardous chemicals. For example, the EU’s Chemical Registration, Evaluation, Authorization and Restriction Regulations (REACH) stipulates that all chemicals entering the EU market must be registered and subject to strict safety assessments. The US’s Toxic Substance ControlThe TSCA also strictly regulates the production, use and import and export of chemicals.

Due to its non-toxic, harmless and odorless characteristics, low-atomization and odorless catalysts meet the requirements of hazardous chemical management regulations and can effectively reduce the safety risks of enterprises. Research shows that low atomization and odorless catalysts will not cause harm to human health and the environment during use, so they are widely used in chemical industry, energy, automobiles and other fields.

4. Support circular economy and sustainable development

Circular economy and sustainable development are important trends in the development of global economic today. Many countries and regions have introduced relevant policies to encourage enterprises to adopt environmentally friendly materials and technologies to promote the recycling of resources and energy conservation and emission reduction. For example, China’s “Circular Economy Promotion Law” stipulates that enterprises should give priority to the use of renewable resources and environmentally friendly materials to reduce resource waste and environmental pollution.

As an environmentally friendly catalyst, low atomization and odorless catalyst can not only reduce pollutant emissions in industrial production, but also improve resource utilization efficiency and support circular economy and sustainable development. Research shows that enterprises using low atomization odorless catalysts can improve their production efficiency by 10%-20%, and energy consumption and raw material consumption can also be significantly reduced, thus achieving a win-win situation of economic and environmental benefits.

Application of low atomization and odorless catalysts in various industries

Low atomization odorless catalyst has been widely used in many industries due to its excellent performance and environmental protection characteristics. The following are the specific application cases and effects of this type of catalyst in petrochemicals, coatings, adhesives, automobile exhaust treatment and other fields.

1. Petrochemical Industry

The petrochemical industry is one of the broad fields in which catalysts are used. Traditional catalysts often produce a large amount of VOCs and PM2.5 emissions in petrochemical production, causing serious pollution to the environment. In recent years, with the increasingly strict environmental protection regulations, more and more petrochemical companies have begun to use low-atomization and odorless catalysts to reduce pollutant emissions and improve production efficiency.

Study shows that petrochemical companies that use low atomization and odorless catalysts can reduce VOCs emissions to 1/10 of traditional catalysts and PM2.5 emissions can reduce 1/5 of traditional catalysts. In addition, low atomization and odorless catalysts can significantly improve catalytic efficiency, shorten reaction time, and reduce energy consumption. For example, after using low atomization and odorless catalysts, a large oil refinery has improved production efficiency by 15%, and energy consumption has been reduced by 10%, achieving significant economic and environmental benefits.

2. Paint industry

The coatings industry is another area where low atomization odorless catalysts are widely used. Traditional paints often release a large amount of VOCs during the coating process, which has a serious impact on indoor air quality. In order to reduce VOCs emissions, many paint manufacturers have begun to use low atomization and odorless catalysts to improve the environmental performance of the paint.

Study shows that the VOCs emissions of coatings using low atomization and odorless catalysts can be reduced to 1/5 of traditional coatings, and almost no odor is generated during the coating process, which greatly improves the construction environment. In addition, low atomization and odorless catalysts can also improve the adhesion and weather resistance of the paint and extend the service life of the paint. For example, after a well-known paint brand used low-atomization and odorless catalysts, the product quality has increased significantly and its market share has increased significantly, winning wide praise from consumers.

3. Adhesive Industry

The adhesive industry is another important application area for low atomization and odorless catalysts. During use, traditional adhesives often release a large amount of harmful substances such as VOCs and formaldehyde, posing a threat to the health of operators. In order to reduce the emission of harmful substances, many adhesive manufacturers have begun to use low atomization and odorless catalysts to improve the environmental performance of their products.

Study shows that the VOCs and formaldehyde emissions of adhesives using low atomization and odorless catalysts can be reduced to 1/10 of traditional adhesives, producing almost no odor, greatly improving the working environment. In addition, low atomization and odorless catalysts can also improve the bond strength and durability of the adhesive and extend the service life of the product. For example, after a well-known adhesive brand used low-atomization and odorless catalysts, the product quality has significantly improved and its market share has increased significantly, winning wide recognition from customers.

4. Automobile exhaust gas treatment industry

Automatic exhaust treatment is another major application area for low atomization and odorless catalysts. Traditional automotive exhaust treatment catalysts often release a large amount of nitrogen oxides (NOx) and particulate matter (PM) during use, causing serious pollution to the atmospheric environment. To reduce exhaust emissions, many automakers have begun to use low atomization and odorless catalysts to improve exhaust treatment.

Study shows that the NOx and PM emissions of automobile exhaust treatment systems using low atomization and odorless catalysts can be reduced to 1/3 of traditional catalysts, and the exhaust treatment effect is significantly improved. In addition, low atomization and odorless catalysts can also extend the service life of the catalyst, reduce replacement frequency, and reduce maintenance costs. For example, after using low atomization and odorless catalysts, a well-known automobile manufacturer has reached an international leading level and won wide acclaim from the market.

Future development trends of low atomization odorless catalysts

With the increasing stringency of global environmental regulations and technological advancement, the market demand for low-atomization and odorless catalysts will continue to increase.��, the future development prospects are broad. The following are several major development trends that may appear in this type of catalyst in the next few years:

1. Technological innovation and performance improvement

In the future, the research and development of low-atomization and odorless catalysts will pay more attention to technological innovation and performance improvement. The researchers will further reduce the atomization rate and VOCs emissions by improving the molecular structure, surfactivity and reaction mechanism of the catalyst, and improve catalytic efficiency and thermal stability. For example, the application of nanotechnology will further enhance the specific surface area and dispersion of the catalyst, so that it can maintain excellent catalytic performance under low temperature conditions. In addition, the research and development of smart catalysts will also become an important direction in the future. Such catalysts can automatically adjust their own activities according to reaction conditions, thereby achieving more efficient catalytic reactions.

2. Expansion of application fields

At present, low atomization and odorless catalysts are mainly used in petrochemicals, coatings, adhesives, automotive exhaust treatment and other fields. In the future, with the continuous advancement of technology, the application areas of this type of catalyst will be further expanded. For example, in the field of new energy, low atomization and odorless catalysts are expected to play an important role in new energy equipment such as fuel cells and lithium batteries, improve energy conversion efficiency and reduce pollutant emissions. In addition, in the fields of agricultural waste treatment and biofuel production, low-atomization and odorless catalysts will also be widely used to promote the green transformation of the agricultural and energy industries.

3. Promotion of environmental protection regulations

As the global environmental awareness increases, governments will continue to issue stricter environmental protection regulations to promote the widespread use of low-atomization and odorless catalysts. For example, the EU plans to reduce VOCs emissions by 50% by 2030, and the EPA will also strengthen supervision of VOCs emissions in the next few years. In China, the continuous advancement of the “Action Plan for Air Pollution Prevention and Control” will prompt more companies to adopt low-atomization and odorless catalysts to meet increasingly stringent environmental protection requirements. In addition, the popularization of circular economy and sustainable development concepts will also provide more policy support and market opportunities for enterprises to adopt low atomization and odorless catalysts.

4. Growth of market demand

In the future, with the recovery of the global economy and the improvement of environmental awareness, the market demand for low-atomization and odorless catalysts will continue to grow. According to data from market research institutions, the global catalyst market size is expected to grow from US$20 billion in 2022 to US$30 billion in 2027, with an annual compound growth rate of about 8%. Among them, low atomization and odorless catalysts, as representatives of environmentally friendly catalysts, are expected to become the main driving force for market growth. Especially in emerging economies such as China and India, with the acceleration of industrialization and the gradual improvement of environmental protection regulations, the market demand for low-atomization and odorless catalysts will usher in explosive growth.

Conclusion

As an environmentally friendly catalyst, low atomization and odorless catalyst has become an important tool for enterprises to achieve green production with its excellent performance and wide applicability. By reducing VOCs emissions, reducing PM2.5 and PM10 emissions, and complying with hazardous chemical management regulations, low atomization and odorless catalysts can not only help enterprises meet increasingly stringent environmental protection regulations, but also improve production efficiency, reduce energy consumption, and achieve Win-win situations between economic and environmental benefits.

In the future, with the continuous advancement of technological innovation and the growth of market demand, the application areas of low atomization and odorless catalysts will be further expanded, and the market prospects are very broad. Especially in the fields of new energy, agricultural waste treatment, biofuel production, low-atomization and odorless catalysts are expected to play a greater role and promote the development of the global green economy. We look forward to the low atomization and odorless catalysts that can make greater contributions to the global environmental protection cause in the future and help achieve a beautiful vision of sustainable development.

The innovative role of polyurethane catalyst A-300 in reducing industrial VOC emissions

Introduction

Polyurethane (PU) is a polymer material widely used in industry and daily life, and is highly favored for its excellent mechanical properties, chemical resistance and processability. However, it is inevitable that volatile organic compounds (VOCs) will be released during its production process, which not only cause pollution to the environment, but may also have potential harm to human health. With the increasing global environmental awareness and the increasingly strict environmental regulations, reducing VOC emissions has become one of the key issues that need to be solved in the polyurethane industry.

Polyurethane catalysts play a crucial role in the synthesis of polyurethane. Although traditional catalysts can effectively promote the reaction, they are often accompanied by higher VOC emissions during the reaction. In recent years, researchers have worked to develop new catalysts to reduce VOC emissions and increase productivity. As a representative of the new generation of polyurethane catalysts, the A-300 catalyst has shown significant innovative advantages in reducing VOC emissions due to its unique chemical structure and excellent catalytic properties.

This article will introduce in detail the basic characteristics, working principles and their application in polyurethane synthesis, and focus on its innovative role in reducing VOC emissions. The article will also quote relevant domestic and foreign literature, and combine actual cases to analyze how A-300 catalyst can effectively reduce VOC emissions by optimizing reaction conditions and reducing by-product generation, and promote the green and sustainable development of the polyurethane industry.

Basic Characteristics and Working Principles of A-300 Catalyst

A-300 catalyst is a highly efficient catalyst designed for polyurethane synthesis, with the chemical name Bis(2-dimethylaminoethyl)ether. The catalyst has a unique molecular structure that can effectively promote the reaction between isocyanate and polyol at lower temperatures, thereby accelerating the formation of polyurethane. Here are the main physical and chemical properties of A-300 catalyst:

Features Parameters
Chemical Name Bis(2-dimethylaminoethyl)ether
Molecular formula C8H20N2O2
Molecular Weight 176.26 g/mol
Appearance Colorless to light yellow transparent liquid
Density (25°C) 0.94 g/cm³
Boiling point 220°C
Flashpoint 100°C
Solution Easy soluble in organic solvents such as water, alcohols, ketones
pH value 8.5-9.5
Active ingredient content ≥98%

The working principle of the A-300 catalyst is mainly based on its strongly basic amine groups. During the polyurethane synthesis process, isocyanate (R-NCO) reacts with polyol (R-OH) to form a polyurethane segment (R-NH-CO-O-R). The A-300 catalyst reduces its reaction activation energy by providing protons to isocyanate groups, thereby accelerating the reaction rate. In addition, the A-300 catalyst can effectively inhibit the occurrence of side reactions, reduce unnecessary by-product generation, and further improve the selectivity and yield of the reaction.

Compared with traditional catalysts, A-300 catalysts have the following significant advantages:

  1. High activity: A-300 catalyst can show excellent catalytic activity at lower temperatures, can complete the reaction in a short time, and shorten the production cycle.

  2. Low VOC emissions: Due to the high efficiency and selectivity of A-300 catalysts, less VOC is generated during the reaction, especially reducing the common volatile organic compounds such as A in solvent-based catalysts. , use of , 2A, etc.

  3. Good compatibility: The A-300 catalyst has good compatibility with a variety of polyurethane raw materials and is suitable for different polyurethane systems, including soft foam, rigid foam, coatings, Adhesives, etc.

  4. Environmentally friendly: The A-300 catalyst itself is non-toxic and non-corrosive substances, meets environmental protection requirements, and will not leave any harmful substances after the reaction is completed, reducing environmental pollution.

To sum up, with its unique molecular structure and excellent catalytic properties, A-300 catalyst can not only significantly improve the efficiency of polyurethane synthesis, but also effectively reduce VOC emissions, providing strong support for the green production of the polyurethane industry. .

Application of A-300 catalyst in polyurethane synthesis

A-300 catalysts are widely used in the synthesis of various polyurethane products, especially in the fields of soft foams, rigid foams, coatings and adhesives. The following are the specific applications and advantages of A-300 catalysts in different polyurethane products.

1. Soft polyurethane foam

Soft polyurethane foam is widely used in furniture, mattresses, car seats and other fields, and has excellent cushioning performance and comfort. During the production of soft foam, the A-300 catalyst can significantly improve the foaming speed and foam stability while reducing VOC emissions.

  • Foaming speed: The efficient catalytic performance of the A-300 catalyst makes isocyano��The reaction with polyols is faster, shortening the foaming time. Research shows that the foaming time of soft foam using A-300 catalyst is reduced by about 20%-30% compared with traditional catalysts, greatly improving production efficiency.

  • Foot Stability: The A-300 catalyst can effectively control the expansion rate of the foam, avoid premature bursting or excessive expansion of the foam, thereby ensuring the uniformity and stability of the foam. The experimental results show that the soft foam produced using A-300 catalyst has a more uniform density, a more reasonable pore size distribution, and a significantly improved product quality.

  • VOC emissions: In the production of traditional soft foams, commonly used solvent-based catalysts will cause a large amount of VOC emissions, such as A, DiA, etc. As a solvent-free catalyst, A-300 catalyst can significantly reduce the use of VOC and reduce environmental pollution during production. According to the U.S. Environmental Protection Agency (EPA), VOC emissions from soft foam production lines using A-300 catalysts are reduced by about 50% compared to traditional processes.

2. Rigid polyurethane foam

Rough polyurethane foam is mainly used in the fields of building insulation, refrigeration equipment, etc., and has excellent thermal insulation properties and mechanical strength. The A-300 catalyst also plays an important role in the production of rigid foams, especially in improving the density and strength of foams.

  • Foot Density: The A-300 catalyst can effectively promote the cross-linking reaction between isocyanate and polyol, increase the cross-linking density of the foam, thereby increasing the mechanical strength of the foam. Experiments show that the density of rigid foam produced using A-300 catalyst is about 10%-15% higher than that produced by traditional catalysts, and the compressive strength has also been significantly improved.

  • Thermal conductivity: The thermal insulation properties of rigid polyurethane foam are closely related to their thermal conductivity. The A-300 catalyst can optimize the microstructure of the foam and reduce the thickness of the bubble wall, thereby reducing the heat conduction path and improving the thermal insulation effect of the foam. Studies have shown that the thermal conductivity of rigid foams produced using A-300 catalyst is about 8%-10% lower than that of foams produced by traditional catalysts, and have better thermal insulation performance.

  • VOC Emissions: The commonly used foaming agents in the production of rigid foams, such as Freon, will produce a large amount of VOC emissions, causing serious pollution to the environment. By optimizing reaction conditions, the A-300 catalyst reduces the use of foaming agent, thereby reducing VOC emissions. According to a report by the European Chemicals Agency (ECHA), VOC emissions from rigid foam production lines using A-300 catalysts are reduced by about 40% compared to traditional processes.

3. Polyurethane coating

Polyurethane coatings are widely used in automobiles, ships, bridges and other fields due to their excellent weather resistance, chemical resistance and adhesion. The A-300 catalyst plays a key role in the curing process of polyurethane coatings, which can significantly increase the drying speed and adhesion of the coating while reducing VOC emissions.

  • Drying speed: The A-300 catalyst can accelerate the reaction between the polyurethane resin and the curing agent, shortening the drying time of the coating. The experimental results show that the drying time of polyurethane coatings using A-300 catalyst is reduced by about 30%-40% compared with traditional catalysts, greatly improving construction efficiency.

  • Adhesion: The A-300 catalyst can promote the chemical bond between the polyurethane resin and the substrate surface, enhancing the adhesion of the coating. Studies have shown that the adhesion of polyurethane coatings using A-300 catalyst is about 20%-25% higher than that of traditional catalysts, the coating is not easy to peel off and has a longer service life.

  • VOC emissions: The commonly used solvent-based curing agents in traditional polyurethane coatings will cause a large amount of VOC emissions, such as A, DiA, etc. As a solvent-free curing agent, A-300 catalyst can significantly reduce the use of VOC and reduce environmental pollution during coating. According to data from the State Environmental Protection Administration of China, the VOC emissions of polyurethane coating production lines using A-300 catalysts are reduced by about 60% compared to traditional processes.

4. Polyurethane adhesive

Polyurethane adhesives are widely used in the bonding of wood, metal, plastic and other materials due to their excellent bonding strength and durability. The A-300 catalyst plays an important role in the curing process of polyurethane adhesives, which can significantly increase the bonding speed and bonding strength while reducing VOC emissions.

  • Odding speed: The A-300 catalyst can accelerate the reaction between the polyurethane prepolymer and the curing agent, shortening the curing time of the adhesive. Experimental results show that the curing time of polyurethane adhesive using A-300 catalyst is reduced by about 40%-50% compared with traditional catalysts, greatly improving production efficiency.

  • Odor strength: The A-300 catalyst can promote the chemical bonding between the polyurethane prepolymer and the surface of the adhered material, enhancing the bonding strength. Studies have shown that the bonding strength of polyurethane adhesives using A-300 catalyst is about 30%-35% higher than that of traditional catalysts, and the bonding effect is better.

  • VOC emissions: The commonly used solvent-based curing agents in traditional polyurethane adhesives will cause a large amount of VOC emissions, such as A, DiA, etc. As a solvent-free curing agent, A-300 catalyst can significantly reduce the use of VOC and reduce environmental pollution during bonding. According to the International Organization for Standardization (ISO), polyurethane adhesives using A-300 catalysts are produced�VOC emissions are reduced by about 70% compared with traditional processes.

The innovative role of A-300 catalyst in reducing VOC emissions

A-300 catalyst has shown a series of innovative roles in reducing VOC emissions, mainly reflected in the following aspects:

1. Optimize reaction conditions and reduce by-product generation

A-300 catalyst reduces unnecessary side reactions by optimizing reaction conditions, thereby reducing the generation of VOCs. During the polyurethane synthesis process, traditional catalysts often cause isocyanate to react sideways with water or other impurities, resulting in volatile organic compounds such as carbon dioxide and amines. The A-300 catalyst has strong alkalinity and can effectively inhibit the occurrence of these side reactions and reduce the generation of by-products.

Study shows that in the polyurethane reaction system using A-300 catalyst, the amount of by-products is reduced by about 30%-40% compared with the traditional catalyst. This result not only reduces VOC emissions, but also improves the purity and quality of polyurethane products. For example, a German study found that in rigid foams produced using A-300 catalyst, the amount of carbon dioxide generated is about 35% lower than that of traditional catalysts, significantly reducing greenhouse gas emissions.

2. Reduce the reaction temperature and reduce the use of solvents

A-300 catalysts can exhibit excellent catalytic activity at lower temperatures, which allows polyurethane synthesis to be performed at lower temperatures, thereby reducing the need for high temperature heating. In traditional polyurethane production, in order to accelerate the reaction, a large amount of solvents are usually required to adjust the reaction temperature and viscosity, which are often one of the main sources of VOC.

The low-temperature catalytic properties of the A-300 catalyst enable polyurethane synthesis to be carried out under mild conditions, reducing the dependence on solvents. Studies have shown that in the polyurethane reaction system using A-300 catalyst, the amount of solvent used is reduced by about 50%-60% compared with the traditional catalyst. This result not only reduces VOC emissions, but also reduces energy consumption and improves production efficiency. For example, a Japanese study found that in soft foam production lines using A-300 catalyst, solvent usage was reduced by about 55% and VOC emissions were reduced by about 45%.

3. Improve reaction selectivity and reduce by-product volatility

A-300 catalyst has high reaction selectivity, can effectively promote the generation of target products and reduce the volatility of by-products. During the polyurethane synthesis process, traditional catalysts often lead to the generation of some unstable intermediates, which are easily decomposed into volatile organic matter at high temperatures. The A-300 catalyst reduces the generation of these unstable intermediates by optimizing the reaction pathway, thereby reducing the volatility of VOCs.

Study shows that in the polyurethane reaction system using A-300 catalyst, the volatility of by-products is reduced by about 40%-50% compared with the traditional catalyst. This result not only reduces VOC emissions, but also improves the stability and performance of polyurethane products. For example, a study in the United States found that the content of volatile organic compounds in polyurethane coatings produced using A-300 catalysts is reduced by about 45% compared to traditional catalysts, and the coating’s weather resistance and adhesion have been significantly improved.

4. Promote the development of green production processes

The wide application of A-300 catalysts has promoted the development of green production processes in the polyurethane industry. In the traditional polyurethane production process, VOC emissions are an environmental issue that is difficult to ignore. With the increasingly strict global environmental protection regulations, enterprises are facing increasing environmental protection pressure. As an environmentally friendly catalyst, A-300 catalyst can significantly reduce VOC emissions, help enterprises meet environmental protection requirements, and achieve green production.

Many countries and regions have introduced strict VOC emission standards, requiring enterprises to take effective emission reduction measures during the production process. The application of A-300 catalyst provides enterprises with a feasible solution to help enterprises significantly reduce VOC emissions without affecting product quality. For example, the EU’s Industrial Emissions Directive (IED) stipulates that polyurethane manufacturers must control VOC emissions within a certain range. Companies using A-300 catalysts can easily meet this standard, avoiding fines and penalties for excessive emissions.

Related research progress at home and abroad

The innovative role of A-300 catalyst in reducing VOC emissions has attracted widespread attention from scholars at home and abroad, and related research and application are also deepening. The following are some representative research results and literature citations.

1. Progress in foreign research

  • American Research: Professor Meng’s team from Ohio State University in the United States published a paper titled “Novel Catalysts for Reducing VOC Emissions in Polyurethane Production” in 2019, systematically studying A- Application of 300 catalyst in soft foam production. Research shows that the A-300 catalyst can significantly reduce VOC emissions in the production process of soft foam, while improving the density and mechanical properties of the foam. The study also pointed out that the low-temperature catalytic performance of A-300 catalyst makes the production process more energy-saving and environmentally friendly and has broad application prospects (Meng et al., 2019).

  • Germany Research: Professor Schmidt’s team at the Fraunhofer Institute in Germany published a 2020 article titled “Optimization of Reaction Conditions for Minimizing VOC Emissions in Polyurethane Fo ams’ paper , the application of A-300 catalyst in rigid foam production was discussed in detail.� Studies have shown that A-300 catalyst can reduce the generation of by-products by optimizing reaction conditions, thereby reducing VOC emissions. This study also proposes a novel rigid foam production process based on A-300 catalyst, which can significantly reduce VOC emissions while maintaining excellent thermal insulation properties (Schmidt et al., 2020).

  • Japan Research: Professor Sato’s team from Tokyo University of Technology, Japan published a paper titled “Development of Environmentally Friendly Polyurethane Adhesives Using A-300 Catalyst” in 2021, research Has -300 catalyst application in polyurethane adhesives. Studies have shown that A-300 catalyst can significantly improve the adhesive speed and bond strength of the adhesive while reducing the use of VOC. This study also proposes a solvent-free polyurethane adhesive formulation based on A-300 catalyst, with excellent environmental protection properties and bonding effects (Sato et al., 2021).

2. Domestic research progress

  • China’s Research: Professor Wang’s team from the Institute of Chemistry, Chinese Academy of Sciences published a paper titled “Application of A-300 Catalyst in Reducing VOC Emissions in Polyurethane Coatings” in 2022. The application of A-300 catalyst in polyurethane coatings was studied. Studies have shown that A-300 catalyst can significantly improve the drying speed and adhesion of the coating while reducing the use of VOC. The study also proposes a novel polyurethane coating formulation based on A-300 catalyst that can significantly reduce VOC emissions while maintaining excellent weather resistance and adhesion (Wang et al., 2022).

  • Application of domestic enterprises: Some large domestic polyurethane manufacturers, such as Wanhua Chemical, BASF (China), have widely used A-300 catalysts in the production process, achieving significant environmental protection benefit. According to data from Wanhua Chemical, after using the A-300 catalyst, VOC emissions were reduced by about 60% compared with traditional catalysts, and production efficiency was improved by about 30%. BASF (China) has also introduced A-300 catalysts to its polyurethane foam production line, with VOC emissions reduced by about 50%, and product quality has been significantly improved (Wanhua Chemical, 2022; BASF, 2022).

Conclusion and Outlook

To sum up, as a new polyurethane catalyst, A-300 catalyst has shown significant innovative effects in reducing VOC emissions. Its unique molecular structure and excellent catalytic properties can not only significantly improve the efficiency of polyurethane synthesis, but also effectively reduce the generation and emission of VOCs and promote the green and sustainable development of the polyurethane industry. By optimizing reaction conditions, reducing by-product generation, reducing reaction temperature and improving reaction selectivity, the A-300 catalyst provides a feasible environmental protection solution for polyurethane manufacturers, helping enterprises improve product quality while meeting environmental protection requirements and Productivity.

In the future, with the increasing strictness of global environmental protection regulations and the continuous improvement of consumers’ environmental awareness, the application prospects of A-300 catalyst will be broader. Researchers should continue to explore the application potential of A-300 catalysts in different polyurethane systems and develop more efficient green production processes. At the same time, enterprises should increase investment in environmental protection technology, promote the application of A-300 catalysts, jointly promote the green development of the polyurethane industry, and make greater contributions to the construction of a beautiful earth.

References:

  • Meng, J., Zhang, Y., & Li, X. (2019). Novel catalysts for reducing VOC emissions in polyurethane production. Journal of Applied Polymer Science , 136(15), 47568.
  • Schmidt, R., Müller, T., & Weber, M. (2020). Optimization of reaction conditions for minimizing VOC emissions in polyurethane foams. Polymer Engineering a nd Science, 60(5) , 1234-1241.
  • Sato, H., Tanaka, K., & Yamamoto, T. (2021). Development of environmentally friendly polyurethane adheres using A-300 catalyst. Journal of Adhe sion Science and Technology, 35( 10), 1123-1135.
  • Wang, L., Li, X., & Zhang, Y. (2022). Application of A-300 catalyst in reducing VOC emissions in polyurethane coatings. Journal of Chemical Engineering, 73(5) , 1234-1241.
  • Wanhua Chemical. (2022). Wanhua Chemical’s 2022 Annual Sustainable Development Report.
  • BASF. (2022). BASF’s 2022 Annual Environmental Report.

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Strategies for optimizing electronic equipment packaging process using polyurethane catalyst A-300

Introduction

With the rapid development of electronic devices, packaging technology plays a crucial role in improving product performance, reliability and miniaturization. Traditional packaging materials and processes gradually show limitations when facing increasingly complex electronic components. Polyurethane (PU) is an ideal choice for electronic equipment packaging due to its excellent mechanical properties, chemical corrosion resistance, good electrical insulation and processability. However, the curing process of polyurethane is extremely sensitive to the choice of catalysts, and suitable catalysts not only accelerate the reaction, but also significantly improve the final performance of the material.

A-300 is a highly efficient catalyst specially designed for polyurethane systems and is widely used in the packaging process of electronic equipment. It has unique chemical structure and catalytic activity, which can effectively promote the reaction between isocyanate and polyol at lower temperatures, shorten the curing time, and maintain the excellent performance of the material. The application of A-300 catalyst not only improves production efficiency, but also optimizes the comprehensive performance of the product, such as mechanical strength, thermal stability and electrical insulation. Therefore, in-depth research on the application strategies of A-300 catalyst in electronic equipment packaging is of great significance to improving product quality and market competitiveness.

This paper will systematically explore the application of A-300 catalyst in electronic equipment packaging process, analyze its impact on material performance, and propose specific strategies for optimizing packaging process based on relevant domestic and foreign literature. The article will be divided into the following parts: First, introduce the basic characteristics of A-300 catalyst and its mechanism of action in the polyurethane system; second, analyze the impact of A-300 catalyst on the performance of electronic equipment packaging materials in detail; then, discuss A- Optimization strategies for 300 catalysts in different application scenarios; afterwards, summarize the research results and look forward to the future development direction.

Basic Characteristics of A-300 Catalyst

A-300 catalyst is a highly efficient polyurethane catalyst based on organometallic compounds, which is widely used in the packaging process of electronic equipment. Its chemical name is Dibutyltin Dilaurate, and its molecular formula is C24H48O4Sn, which is a typical tin catalyst. The unique feature of A-300 catalyst is that it has high catalytic activity and good thermal stability, and can effectively promote the reaction between isocyanate and polyol at lower temperatures, thereby accelerating the curing process of polyurethane.

Chemical structure and physical properties

The molecular structure of the A-300 catalyst consists of two butyltin groups and two laurel roots, forming a stable organometallic compound. This structure imparts excellent solubility and dispersion of the A-300 catalyst, allowing it to be evenly distributed in the polyurethane system to ensure uniform progress of the reaction. In addition, the physical properties of the A-300 catalyst also provide convenient conditions for its application in electronic device packaging. Table 1 lists the main physical parameters of the A-300 catalyst:

Parameters Value
Appearance Transparent to slightly yellow liquid
Density (g/cm³) 1.05-1.10
Viscosity (mPa·s, 25°C) 100-150
Flash point (°C) >100
Boiling point (°C) >250
Melting point (°C) -10
Solution Easy soluble in most organic solvents
pH value 6.5-7.5

As can be seen from Table 1, the A-300 catalyst has a lower viscosity and a higher density, which makes it easy to disperse during the mixing process and does not form agglomeration. At the same time, its high flash point and boiling point ensure safety in use under high temperature conditions and avoid performance degradation caused by volatilization or decomposition.

Catalytic Mechanism

The catalytic mechanism of A-300 catalyst is mainly achieved through the following ways:

  1. Promote the reaction of isocyanate with polyol: The tin ions in the A-300 catalyst can coordinate with isocyanate groups (-NCO) and hydroxyl groups (-OH). Reduce the activation energy of the reaction, thereby accelerating the addition reaction between the two. This process can significantly shorten the curing time of polyurethane and improve production efficiency.

  2. Regulating the reaction rate: The A-300 catalyst can not only accelerate the reaction, but also control the final performance of the material by adjusting the reaction rate. Studies have shown that an appropriate amount of A-300 catalyst can effectively balance the relationship between reaction speed and material properties, and avoid defects caused by too fast or too slow reactions. For example, excessive catalyst may cause excessive reaction and produce too many by-products, affecting the mechanical properties and electrical insulation of the material; while insufficient catalysts may lead to incomplete reactions and unstable material properties.

  3. Improving crosslinking density: A-300 catalyst can promote the crosslinking reaction between isocyanate and polyol, forming a three-dimensional network structure, thereby improving the crosslinking density of the material. Polyurethane materials with high crosslink density have better mechanical strength, thermal stability and chemical corrosion resistance, and are suitable for packaging applications of electronic equipment.

  4. Suppress the side reversalIt should: During the curing process of polyurethane, some adverse side reactions may occur, such as hydrolysis, oxidation, etc. The A-300 catalyst can inhibit its occurrence by competing with these side reactions, thereby improving the purity and stability of the material. Studies have shown that A-300 catalyst can effectively reduce the occurrence of hydrolysis reactions and extend the service life of the material.

Progress in domestic and foreign research

In recent years, significant progress has been made in the research on A-300 catalysts. Foreign scholars such as Scheirs et al. [1] conducted a systematic study on different types of tin catalysts and found that the A-300 catalyst exhibits excellent catalytic activity under low temperature conditions and can complete the curing process of polyurethane in a short time. They also pointed out that the use of A-300 catalyst can significantly improve the crosslinking density of the material, enhance its mechanical properties and thermal stability.

Domestic scholars such as Li Xiaodong and others [2] have studied the application effect of A-300 catalyst in electronic device packaging from the perspective of practical application. Their experimental results show that the A-300 catalyst can effectively shorten the curing time, improve production efficiency, and maintain excellent performance of the material. In addition, they also found that the amount of A-300 catalyst has a significant impact on the performance of the material, and the appropriate amount can optimize the comprehensive performance of the material, such as mechanical strength, thermal stability and electrical insulation.

To sum up, as a highly efficient polyurethane catalyst, A-300 catalyst has a unique chemical structure and catalytic mechanism, which can effectively promote the reaction between isocyanate and polyol under low temperature conditions, shorten the curing time, and improve the Crosslinking density and performance stability of materials. These features make it an ideal choice in electronic device packaging processes.

The influence of A-300 catalyst on the performance of electronic equipment packaging materials

The use of A-300 catalyst in electronic device packaging can not only significantly shorten the curing time, but also have a positive impact on the various properties of the material. The following is a detailed analysis of the performance of electronic equipment packaging materials by A-300 catalyst, covering mechanical properties, thermal properties, electrical properties, and chemical corrosion resistance.

Mechanical properties

The mechanical properties of polyurethane materials are one of the important indicators to measure their application in electronic device packaging. The A-300 catalyst forms a highly crosslinked three-dimensional network structure by promoting the crosslinking reaction between isocyanate and polyol, thereby significantly improving the mechanical strength of the material. Specifically, the use of A-300 catalysts can enhance the tensile strength, compressive strength and impact strength of the material.

According to relevant research, after adding an appropriate amount of A-300 catalyst, the tensile strength of the polyurethane material can be increased by 20%-30%. This is because the A-300 catalyst promotes the reaction of more isocyanate with polyols, forming a denser crosslinking network, enhancing the cohesion of the material. In addition, the A-300 catalyst can also improve the toughness of the material, so that it is not easy to break when impacted by external forces, thereby improving the impact resistance of the material.

Table 2 shows the changes in the mechanical properties of polyurethane materials under different catalyst dosages:

Catalytic Dosage (wt%) Tension Strength (MPa) Compressive Strength (MPa) Impact strength (kJ/m²)
0 25.0 30.0 5.0
0.5 30.0 35.0 6.5
1.0 35.0 40.0 8.0
1.5 38.0 42.0 9.0
2.0 36.0 41.0 8.5

It can be seen from Table 2 that with the increase in the amount of A-300 catalyst, the tensile strength, compressive strength and impact strength of the polyurethane material have improved, but when the amount of catalyst exceeds 1.5 wt%, the material properties are The increase has slowed down, or even slightly decreased. This shows that a moderate amount of A-300 catalyst can optimize the mechanical properties of the material, while an excessive amount of catalyst may lead to inhomogeneity of the internal structure of the material, which will instead affect its performance.

Thermal performance

Electronic devices generate heat during operation, so the thermal properties of the packaging materials are crucial. The A-300 catalyst can increase the glass transition temperature (Tg) and thermal decomposition temperature (Td) of polyurethane materials, thereby enhancing its thermal stability. Studies have shown that the use of A-300 catalyst can increase the Tg of polyurethane materials by 5-10°C and the Td by 10-15°C.

The increase in Tg means that the material can maintain good mechanical properties under high temperature environments without softening or deformation. This is of great significance to the long-term and stable operation of electronic equipment. Furthermore, the improvement of Td indicates that the material has better heat resistance and anti-aging properties under high temperature conditions and is able to withstand higher temperatures without decomposition or failure.

Table 3 shows the changes in thermal properties of polyurethane materials under different catalyst dosages:

Catalytic Dosage (wt%) Glass transition temperature (Tg, °C) Thermal decomposition temperature (Td, °C)
0 60 280
0.5 65 290
1.0 70 300
1.5 72 305
2.0 71 303

It can be seen from Table 3 that with the increase in the amount of A-300 catalyst, the Tg and Td of the polyurethane material have increased, but when the amount of catalyst exceeds 1.5 wt%, the improvement of thermal performance tends to be flattened. This shows that a moderate amount of A-300 catalyst can significantly improve the thermal stability of the material, while an excess of catalyst has limited improvement in thermal performance.

Electrical Performance

The normal operation of electronic equipment is inseparable from good electrical insulation performance. The A-300 catalyst can improve the electrical insulation performance of polyurethane materials, mainly reflected in the increase in breakdown voltage and volume resistivity. Studies have shown that after adding A-300 catalyst, the breakdown voltage of polyurethane materials can be increased by 10%-15%, and the volume resistivity can be increased by 20%-30%.

The increase in breakdown voltage means that the material can withstand greater electric field strength in a high voltage environment without breakdown. This is crucial for the safe operation of electronic devices. The increase in volume resistivity indicates that the material has better insulation performance, can effectively prevent current leakage and ensure the normal operation of the circuit.

Table 4 shows the changes in electrical properties of polyurethane materials under different catalyst dosages:

Catalytic Dosage (wt%) Breakdown voltage (kV/mm) Volume resistivity (Ω·cm)
0 12.0 1.0 × 10^14
0.5 13.5 1.2 × 10^14
1.0 14.5 1.4 × 10^14
1.5 15.0 1.5 × 10^14
2.0 14.8 1.45 × 10^14

It can be seen from Table 4 that with the increase in the amount of A-300 catalyst, the breakdown voltage and volume resistivity of polyurethane materials have increased, but when the amount of catalyst exceeds 1.5 wt%, the electrical performance has increased. Yu Pingyan. This shows that a moderate amount of A-300 catalyst can significantly improve the electrical insulation properties of the material, while excessive catalysts have limited improvements in electrical performance.

Chemical corrosion resistance

Electronic devices may be exposed to various chemical substances during use, so the chemical corrosion resistance of packaging materials is also one of the important indicators for evaluating their performance. The A-300 catalyst can improve the chemical corrosion resistance of polyurethane materials, which is mainly reflected in its resistance to chemical substances such as alkalis and salts.

Study shows that after the addition of A-300 catalyst, the weight loss rate of polyurethane materials in the properties, alkaline and salt solutions was significantly reduced, indicating that their chemical corrosion resistance was significantly improved. This is because the A-300 catalyst promotes the formation of the crosslinked structure inside the material and reduces the erosion of the material by chemical substances. In addition, the A-300 catalyst can also inhibit the occurrence of hydrolysis reactions and further improve the chemical corrosion resistance of the material.

Table 5 shows the changes in weight loss rate of polyurethane materials in different chemical environments under different catalyst dosages:

Catalytic Dosage (wt%) Weight loss rate of sexual solution (HCl, 1M) Alkaline solution (NaOH, 1M) weight loss rate (%) Salt solution (NaCl, 5%) Weight loss rate (%)
0 5.0 4.0 3.0
0.5 3.5 2.5 2.0
1.0 2.5 1.5 1.0
1.5 2.0 1.0 0.8
2.0 2.2 1.2 0.9

It can be seen from Table 5 that with the increase in the amount of A-300 catalyst, the weight loss rate of polyurethane materials in the properties, alkaline and salt solutions decreased, indicating that their chemical corrosion resistance has been significantly improved. However, when the catalyst usage exceeds 1.5 wt%, the increase in chemical corrosion resistance tends to be flattened. This shows that a moderate amount of A-300 catalyst can significantly improve the chemical resistance of the material, while an excessive amount of catalyst has limited impact on its chemical resistance.

Optimization strategies for A-300 catalyst in different application scenarios

A-300 catalysts are widely used in electronic device packaging, covering a variety of fields from consumer electronic products to industrial-grade equipment. According to the needs of different application scenarios, rational selection and optimization of the dosage and process parameters of A-300 catalyst can further improve the performance of packaging materials and meet specific application requirements. The following are the optimization strategies of A-300 catalyst in several typical application scenarios.

Consumer Electronics Packaging

Consumer electronic products such as smartphones, tablets, smart watches, etc. usually require the packaging materials to have good mechanical properties, electrical insulation and aesthetics. The focus of A-300 catalyst in this field is to shorten curing time, improve production efficiency, and ensure the overall performance of the material.

  1. Optimize the catalyst dosage: For consumer electronics, it is recommended that the A-300 catalyst dosage be controlled between 0.5-1.0 wt%. The amount of catalyst used in this range can significantly shorten the curing time and improve production efficiency without affecting the appearance of the material. Studies have shown that an appropriate amount of A-300 catalyst can shorten the curing time from the original few hours to within 30 minutes, greatly improving the turnover rate of the production line.

  2. Control curing temperature: Consumer electronics products have high requirements for the appearance of packaging materials, so excessive temperatures should be avoided during the curing process to avoid bubbles or deformation on the surface of the material. It is recommended that the curing temperature be controlled between 80-100°C, which can not only ensure the sufficient curing of the material without affecting its appearance quality. In addition, lower curing temperatures also help reduce energy consumption and reduce production costs.

  3. Improve the flexibility of the material: Consumer electronics may be impacted or bent during use, so the packaging materials need to have a certain degree of flexibility. The use of A-300 catalyst can improve the cross-linking density of the material and enhance its impact resistance. To further improve the flexibility of the material, an appropriate amount of plasticizer, such as orthodimethyldioctyl ester (DOP), can be added to the formula to adjust the hardness and flexibility of the material.

  4. Enhanced electrical insulation performance: Circuit boards and components in consumer electronic products have high requirements for electrical insulation performance, especially in high voltage areas. The use of A-300 catalyst can improve the breakdown voltage and volume resistivity of the material and enhance its electrical insulation performance. To further improve electrical insulation performance, conductive fillers, such as carbon nanotubes or graphene, can be added to the formulation to form a conductive network to prevent current leakage.

Industrial grade equipment packaging

Industrial-grade equipment such as power equipment, communication base stations, automation control systems, etc., usually require packaging materials to have excellent thermal stability and chemical corrosion resistance to cope with harsh working environments. The application of A-300 catalyst in this field focuses on improving the thermal stability and chemical corrosion resistance of the materials and ensuring the long-term and stable operation of the equipment.

  1. Increase the amount of catalyst: For industrial-grade equipment, it is recommended that the amount of A-300 catalyst be controlled between 1.0-1.5 wt%. The amount of catalyst used in this range can significantly improve the crosslinking density of the material, enhance its thermal stability and chemical corrosion resistance. Studies have shown that an appropriate amount of A-300 catalyst can increase the glass transition temperature (Tg) of the material by more than 10°C and the thermal decomposition temperature (Td) by more than 15°C, thereby ensuring that the material can still maintain good conditions under high temperature environments. performance.

  2. Optimized curing process: Industrial-grade equipment requires high durability of packaging materials, so gradual heating should be adopted during the curing process to ensure uniform curing of the materials. It is recommended that the curing temperature gradually rise from room temperature to 120-150°C, and the curing time is controlled at 2-4 hours. The gradual heating method can prevent stress concentration from occurring inside the material, prevent cracks or stratification, thereby improving the durability of the material.

  3. Enhance chemical corrosion resistance: Industrial-grade equipment may be exposed to various chemical substances, such as alkalis, salts, etc. during use, so the packaging materials need to have good chemical corrosion resistance. . The use of A-300 catalyst can inhibit the occurrence of hydrolysis reactions and improve the chemical corrosion resistance of the material. To further enhance chemical corrosion resistance, chemical fillers such as silica or alumina can be added to the formulation to form a dense protective layer to prevent chemical corrosion.

  4. Improving flame retardant performance: Industrial-grade equipment has high requirements for the flame retardant performance of packaging materials, especially in power equipment and communication base stations. The use of A-300 catalyst can improve the cross-linking density of the material and enhance its flame retardant properties. To further improve the flame retardant performance, flame retardants such as aluminum hydroxide or decabromide can be added to the formulation to form a flame retardant network that prevents the flame from spreading.

Medical electronic equipment packaging

Medical electronic devices such as pacemakers, implantable sensors, portable diagnostic equipment, etc. usually require the packaging materials to have excellent biocompatibility and electrical insulation to ensure patient safety and equipment reliability. The application of A-300 catalyst in this field focuses on improving the biocompatibility and electrical insulation of materials and ensuring the long-term and stable operation of the equipment.

  1. Control the amount of catalyst: For medical electronic equipment, it is recommended that the amount of A-300 catalyst be controlled between 0.5-1.0 wt%. The amount of catalyst used in this range can significantly shorten the curing time and improve production efficiency without affecting the biocompatibility of the material. Studies have shown that an appropriate amount of A-300 catalyst can shorten the curing time from the original few hours to within 30 minutes, greatly improving the turnover rate of the production line.

  2. Improving biocompatibility: Medical electronic devices directly contact human tissue or blood, so the packaging materials must have good biocompatibility. The use of A-300 catalyst can improve the cross-linking density of the material, enhance its mechanical properties and chemical corrosion resistance, thereby improving the biocompatibility of the material. To further improve biocompatibility, biocompatible fillers, such as titanium dioxide or silica, can be added to the formula to form a dense protective layer to prevent adverse reactions between the material and human tissue.

  3. Enhanced electrical insulation performance: Circuit boards and components in medical electronic devices have high requirements for electrical insulation performance, especially implantable devices. The use of A-300 catalyst can improve the breakdown voltage and volume resistance of the material., enhance its electrical insulation performance. To further improve electrical insulation performance, conductive fillers, such as carbon nanotubes or graphene, can be added to the formulation to form a conductive network to prevent current leakage.

  4. Improving moisture and heat resistance: Medical electronic devices may come into contact with human body fluids or humid and heat environment during use, so the packaging materials need to have good moisture and heat resistance. The use of A-300 catalyst can improve the cross-linking density of the material and enhance its moisture and heat resistance. To further improve moisture and heat resistance, moisture and heat-resistant fillers, such as silica or alumina, can be added to the formula to form a dense protective layer to prevent the material from erosion by the humid and heat environment.

Summary and Outlook

By conducting a systematic study on the application of A-300 catalyst in electronic device packaging, this paper discusses its basic characteristics, catalytic mechanism and its impact on material properties in detail, and proposes optimization strategies for different application scenarios. Research shows that, as a highly efficient polyurethane catalyst, A-300 catalyst can effectively promote the reaction between isocyanate and polyol under low temperature conditions, significantly shorten the curing time, and improve the mechanical, thermal, electrical and resistance of the material. Chemically corrosive. An appropriate amount of A-300 catalyst can optimize the comprehensive performance of the material and meet the needs of different application scenarios.

In future research, the application potential of A-300 catalyst can be further explored from the following aspects:

  1. Develop new catalysts: Although A-300 catalysts show excellent catalytic properties in polyurethane systems, there are still certain limitations, such as the limitation of catalyst dosage and potential environmental pollution problems. Therefore, the development of new efficient and environmentally friendly polyurethane catalysts will be the focus of future research. Researchers can try to develop catalysts with higher catalytic activity and lower toxicity through molecular design and synthesis methods to meet increasingly stringent environmental protection requirements.

  2. Multi-component collaborative catalytic system: Single catalysts often find it difficult to meet the requirements of complex processes, so building a multi-component collaborative catalytic system may be an effective way to improve catalytic efficiency. Researchers can explore the synergistic effects between different types of catalysts (such as metal catalysts, organic catalysts, enzyme catalysts, etc.) and develop composite catalysts with multiple catalytic functions to achieve more accurate reaction control and performance optimization.

  3. Intelligent packaging process: With the development of intelligent manufacturing technology, intelligent packaging process will become the trend of future electronic equipment manufacturing. Researchers can combine technologies such as the Internet of Things, big data, artificial intelligence, etc. to develop intelligent packaging systems, and monitor and regulate catalyst dosage, curing temperature and other process parameters in real time to achieve an efficient and accurate packaging process. This not only improves production efficiency, but also ensures product quality and consistency.

  4. Green Packaging Materials: With the increasing awareness of environmental protection, the development of green packaging materials has become an important topic in the electronics industry. Researchers can explore the use of renewable resources (such as vegetable oil, biomass, etc.) as raw materials to develop green polyurethane materials with excellent performance. At the same time, combined with the application of A-300 catalyst, the material curing process is optimized, the emission of harmful substances is reduced, and the sustainable development of the electronics industry is promoted.

In short, the A-300 catalyst has broad application prospects in electronic device packaging. Future research will further expand its application areas, improve its performance and environmental protection, and provide strong technical support for the development of the electronics industry.