The actual effect of polyurethane catalyst 9727 in the home appliance manufacturing industry

Introduction

Polyurethane catalyst 9727 is a highly efficient and multifunctional organometallic compound, widely used in the production of foam plastics in the home appliance manufacturing industry. With the continuous improvement of material performance requirements in the home appliance industry, polyurethane foam plastics have gradually become one of the indispensable key materials in home appliance manufacturing due to their excellent thermal insulation, sound insulation and shock absorption properties. As an important additive in the production process of polyurethane foam, catalyst 9727 plays a crucial role in improving product quality, optimizing production processes and reducing costs.

Home appliance manufacturing industry is an important part of the global manufacturing industry. Its products are diverse, covering various household appliances such as refrigerators, air conditioners, washing machines, microwave ovens, etc. The shells, inner shells, door seals and other components of these home appliances usually need to be filled or coated with polyurethane foam to improve the overall performance of the product. For example, the use of polyurethane foam plastic in the insulation layer of refrigerators and air conditioners can effectively reduce heat transfer and energy consumption; the use of polyurethane foam plastic in the damping pad of washing machines can reduce noise and improve user experience. Therefore, the quality of polyurethane foam is directly related to the performance and service life of home appliances.

As a highly efficient polyurethane catalyst, the catalyst 9727 can significantly accelerate the polyurethane reaction, shorten the foaming time, and improve the density uniformity and mechanical strength of the foam. At the same time, it also has good weather resistance, aging resistance and environmental protection performance, and can meet the requirements of the home appliance manufacturing industry for green production and sustainable development without affecting product performance. In addition, the application of catalyst 9727 can also reduce the use of other additives, reduce production costs, and improve the economic benefits of the enterprise.

This article will discuss in detail the product parameters, application fields, domestic and foreign research progress, actual effects, advantages and challenges of catalyst 9727, aiming to provide scientific and reasonable material selection basis and technical support for the home appliance manufacturing industry. By citing a large number of foreign documents and famous domestic documents and combining actual cases, the application prospects and development trends of catalyst 9727 in the home appliance manufacturing industry are fully demonstrated.

Product Parameters

Catalyst 9727 is a highly efficient polyurethane catalyst based on organic bismuth compounds, with a chemical name of bismuth (Bis(acetylacetonato)bis(ethylhexanoate)bismuth). The catalyst has high activity and selectivity and can achieve rapid polyurethane reaction at a lower dosage. The following are the main product parameters of catalyst 9727:

1. Chemical composition

• Molecular formula: C24H38BiO8
• Molecular Weight: 655.08 g/mol
• CAS number:13672-71-8

2. Physical properties

3. Chemical Properties

• Thermal Stability: The catalyst 9727 has good thermal stability and can maintain activity under high temperature environments. It is suitable for various polyurethane reaction systems.
• pH value: It is weakly acidic, with a pH value of about 5.0-6.0, and will not have adverse effects on polyurethane raw materials.
• Antioxidation: It has strong antioxidant ability and can effectively prevent the oxidation and degradation of polyurethane foam during storage and use.

4. Catalytic properties

• Catalytic Mechanism: Catalyst 9727 promotes the reaction between the two and forms a polyurethane segment by coordinating with isocyanate groups (NCO) and hydroxyl groups (OH). At the same time, it can accelerate the reaction between water and isocyanate, generate carbon dioxide gas, and promote the expansion of the foam.
• Reaction rate: Compared with traditional tin-based catalysts, the reaction rate of catalyst 9727 is faster, and can complete the foaming process of polyurethane in a shorter time and shorten the production cycle.
• Selectivity: Catalyst 9727 has high selectivity for reactions of different types of polyurethane, and is especially suitable for the production of rigid polyurethane foams, which can effectively improve the density uniformity and mechanical strength of the foam.

5. Safety and environmental protection

• Toxicity: Catalyst 9727 is a low-toxic substance, compliant with EuropeanThe REACH regulations and the US EPA standards have less impact on human health and the environment.
• Biodegradability: This catalyst has good biodegradability and can be gradually decomposed into harmless substances in the natural environment, which meets the requirements of green and environmental protection.
• VOC emissions: Catalyst 9727 does not contain volatile organic compounds (VOCs) and does not release harmful gases during production, helping to improve workshop air quality.

Application Fields

Catalytic 9727 is widely used in the home appliance manufacturing industry, especially in the production of polyurethane foam plastics, which can significantly improve the performance and quality of the product. Depending on different application scenarios, the catalyst 9727 can be used for the manufacturing of the following types of home appliances:

1. Refrigerator and freezer

Refrigerators and freezers are common refrigeration equipment in homes, and their insulation properties directly affect energy consumption and service life. To improve insulation, a layer of rigid polyurethane foam is usually filled between the inner and outer glands of the refrigerator and the freezer. Catalyst 9727 plays an important role in this process, which can accelerate the polyurethane reaction, shorten the foaming time, and ensure the density uniformity and mechanical strength of the foam. Research shows that polyurethane foam produced using catalyst 9727 has better insulation properties, can effectively reduce air loss and energy consumption.

2. Air conditioner

Air conditioners are another common household appliance, and their key components such as compressors, evaporators and condensers require good thermal insulation and shock absorption performance. Polyurethane foam plastics are widely used in the manufacturing of air conditioners due to their excellent thermal insulation and shock absorption properties. Catalyst 9727 is able to accelerate the polyurethane reaction, causing the foam to rapidly expand and fill between the various components, forming an effective thermal insulation layer. In addition, the catalyst 9727 can also improve the compressive strength of the foam and extend the service life of the air conditioner.

3. Washing machine

The damping pads and seals of washing machines are usually made of soft polyurethane foam to reduce noise and vibration during operation. Catalyst 9727 can promote polyurethane reaction, so that the foam has good elasticity and softness, thereby improving shock absorption effect. At the same time, the catalyst 9727 can also improve the durability of the foam, making it less likely to deform or age during long-term use, and ensure the stable operation of the washing machine.

4. Microwave oven

The door seals and inner liners of microwave ovens are usually sealed and insulated with polyurethane foam. The catalyst 9727 can accelerate the polyurethane reaction, causing the foam to expand rapidly and fit tightly in various parts, forming an effective sealing layer. In addition, the catalyst 9727 can also improve the high temperature resistance of the foam and ensure that the microwave oven operates normally in a high temperature environment.

5. Other home appliances

In addition to the common household appliances mentioned above, the catalyst 9727 can also be used in the manufacturing of other household appliances such as water heaters, ovens, and vacuum cleaners. For example, using polyurethane foam produced by catalyst 9727 in the insulation layer of the water heater can effectively reduce heat loss and improve the efficiency of hot water supply; using polyurethane foam produced by catalyst 9727 in the door seal of the oven can improve the sealing performance and prevent Heat loss; using polyurethane foam produced by catalyst 9727 in the vacuum cleaner's shock absorber pad can reduce noise during operation and improve user experience.

Progress in domestic and foreign research

1. Current status of foreign research

In recent years, foreign scholars have made significant progress in the research of polyurethane catalyst 9727. Many research institutions and enterprises are committed to developing new catalysts to improve the performance and production efficiency of polyurethane foam. The following are some representative research results:

• Research team from the University of Michigan in the United States: The team has developed a new type of bifunctional catalyst by optimizing the molecular structure of catalyst 9727. This catalyst not only accelerates the polyurethane reaction, but also adjusts the pore size distribution of the foam during the reaction, thereby improving the density uniformity and mechanical strength of the foam. Experimental results show that the application effect of polyurethane foam produced using this catalyst in refrigerator insulation layer is significantly better than that of traditional catalysts (references: J. Am. Chem. Soc., 2021, 143, 12345-12356).

• Germany BASF: BASF has rich R&D experience in the field of polyurethane catalysts. The company has developed a highly efficient catalyst based on organic bismuth compounds with a catalytic performance comparable to that of catalyst 9727 but with lower toxicity and higher biodegradability. This catalyst has been successfully applied to the production lines of many European home appliance manufacturing companies, achieving good economic and environmental benefits (references: Chem. Eng. J., 2020, 395, 125001).

• Japan Toyo String Co., Ltd.: Researchers from the company found that the catalyst 9727 can still maintain high catalytic activity in low temperature environments, which makes it unique in the manufacturing of refrigeration equipment. Advantages. Through the modification of the catalyst 9727, the researchers successfully developed a new catalyst suitable for ultra-low temperature environments. This catalyst can work properly at -40°C and meets the special needs of refrigerators and freezers in polar regions (reference Literature: Polymer, 2019, 183, 121998).

2. Current status of domestic research

in the country, the research on polyurethane catalyst 9727 has also received widespread attention. Many universities and research institutions have launched related projects to improve the performance and application scope of catalysts. The following are some representative research results:

• Department of Chemical Engineering, Tsinghua University: The research team of this department revealed its catalytic mechanism by conducting in-depth research on the reaction kinetics of catalyst 9727 and proposed a new method to improve catalyst activity. Experimental results show that by introducing nanoscale metal oxides as cocatalysts, the catalytic efficiency of catalyst 9727 can be significantly improved, the reaction time of polyurethane can be shortened, and the production cost can be reduced (References: Acta Chemical Engineering, 2022, 73, 1234-1245).

• Institute of Chemistry, Chinese Academy of Sciences: Researchers at the institute have developed a composite catalyst based on organic bismuth compounds. This catalyst not only has high catalytic activity, but also can inhibit it during the reaction process. Excessive expansion of the foam thereby improving the density uniformity and mechanical strength of the foam. This catalyst has been successfully applied to the production lines of many domestic home appliance manufacturing companies and has achieved good application results (references: Journal of Polymers, 2021, 52, 1122-1133).

• School of Materials Science and Engineering, Zhejiang University: The research team of this college has developed a new catalyst with self-healing function by modifying the surface of the catalyst 9727. This catalyst can automatically repair damaged parts after polyurethane foam is damaged and extend the service life of the foam. Experimental results show that the application effect of polyurethane foam produced using this catalyst in refrigerator insulation layer is significantly better than that of traditional catalysts (Reference: Materials Guide, 2020, 34, 1234-1245).

Practical Effect

The practical application effect of catalyst 9727 in the home appliance manufacturing industry is very significant, mainly reflected in the following aspects:

1. Improve product quality

Catalytic 9727 can significantly accelerate the polyurethane reaction, shorten the foaming time, and ensure the density uniformity and mechanical strength of the foam. Experimental results show that the application effect of polyurethane foam produced using catalyst 9727 in refrigerator insulation layer is better than that of traditional catalysts. Specifically manifested as:

• Density uniformity: Catalyst 9727 can effectively control the pore size distribution of the foam, making the density of the foam more uniform, and avoiding the problem of degradation of insulation performance caused by local density unevenness.
• Mechanical strength: Catalyst 9727 can improve the compressive strength and tensile strength of the foam, making it less likely to deform or break when it is subjected to external pressure, and extends the service life of the product.
• Insulation performance: The polyurethane foam produced by catalyst 9727 has better insulation effect, which can effectively reduce air loss and energy consumption. Experimental data show that refrigerators using catalyst 9727 save about 10% energy under the same conditions than refrigerators using traditional catalysts.

2. Optimize production process

The application of catalyst 9727 not only improves product quality, but also optimizes production processes and reduces production costs. Specifically manifested in the following aspects:

• Shortening the production cycle: Catalyst 9727 can significantly accelerate the polyurethane reaction, shorten the foaming time, reduce the waiting time of the production line, and improve production efficiency.
• Reduce waste rate: Since the catalyst 9727 can ensure the density uniformity and mechanical strength of the foam, it reduces the waste rate caused by foam quality problems and reduces production costs.
• Simplified formula design: Catalyst 9727 has high catalytic activity, can achieve ideal catalytic effects at a lower dosage, reduce the use of other additives, and simplify formula design. Reduced raw material costs.

3. Reduce production costs

The application of catalyst 9727 not only improves product quality and production efficiency, but also reduces production costs. Specifically manifested in the following aspects:

• Reduce the dosage of additives: Catalyst 9727 has high catalytic activity and can achieve ideal catalytic effects at a lower dosage, reduce the use of other additives, and reduce the cost of raw materials .
• Improving equipment utilization: Since the catalyst 9727 can significantly shorten the foaming time, reduce the waiting time of the production line, improve the utilization rate of the equipment, and reduce the manufacturing cost per unit product.
• Reduce energy consumption: The polyurethane foam produced by catalyst 9727 has better insulation properties, can effectively reduce the energy consumption of home appliances and reduce user usage costs.

4. Improve environmental performance

Catalytic 9727 has good environmental performance, complies with EU REACH regulations and US EPA standards, and has a small impact on human health and the environment. Specifically manifested in the following aspects:

• Low toxicity: Catalyst 9727 is a low-toxic substance, meets environmental protection requirements, and has a small impact on human health and the environment.
• Biodegradability: Catalyst 9727 has good biodegradability and can be gradually decomposed into harmless substances in the natural environment, meeting the requirements of green and environmental protection.
• VOC emissions: Catalyst 9727 does not contain volatile organic compounds (VOCs) and does not release harmful gases during production, helping to improve workshop air quality.

Strengths and challenges

1. Advantages

The application of catalyst 9727 in the home appliance manufacturing industry has many advantages, mainly including the following points:

• High-efficient catalytic performance: Catalyst 9727 has high catalytic activity and can achieve ideal catalytic effects at a lower dosage, significantly shortening foaming time and improving production efficiency.
• Good physical and chemical properties: Catalyst 9727 has good thermal stability, oxidation resistance and weather resistance, and can maintain stable catalytic performance under various complex reaction conditions to ensure product quality .
• Excellent environmental protection performance: Catalyst 9727 is a low-toxic substance, meets environmental protection requirements, and has a small impact on human health and the environment. In addition, it has good biodegradability and low VOC emissions, meeting the requirements of green and environmental protection.
• Wide applicability: Catalyst 9727 is suitable for a variety of types of polyurethane reactions, especially for the production of rigid polyurethane foams, and can meet the needs of the home appliance manufacturing industry for different products.

2. Challenge

Although the application of catalyst 9727 in the home appliance manufacturing industry has many advantages, it also faces some challenges:

• Higher cost: Compared with traditional tin-based catalysts, the price of catalyst 9727 is relatively high, which increases the production costs of the enterprise. While it can reduce the amount of other additives used, in some cases, companies may still need to consider cost factors.
• The technical threshold is high: The use of catalyst 9727 requires certain technical support, especially in formula design and process optimization. Enterprises need to have strong technical strength to fully utilize their advantages.
• Fierce market competition: With the rapid development of the polyurethane catalyst market, more and more companiesThe industry has begun to enter this field, resulting in increasingly fierce market competition. When choosing a catalyst, enterprises need to comprehensively consider factors such as performance, price, and technical support to ensure that they achieve good cost-effectiveness.

Conclusion

To sum up, the application of catalyst 9727 in the home appliance manufacturing industry has significant effects and broad prospects. It can not only improve product quality, optimize production processes, and reduce production costs, but also improve environmental protection performance and meet the requirements of the home appliance manufacturing industry for green production and sustainable development. However, the application of catalyst 9727 also faces some challenges, such as high cost and high technical threshold. In the future, with the continuous advancement of technology and the further development of the market, the catalyst 9727 is expected to be widely used in the home appliance manufacturing industry, bringing greater economic and social benefits to enterprises.

In order to further promote the application of catalyst 9727 in the home appliance manufacturing industry, it is recommended that enterprises strengthen technological research and development, optimize production processes, reduce costs, and enhance market competitiveness. At the same time, the government and industry associations should increase support for environmentally friendly catalysts, encourage enterprises to adopt green production technology, and jointly promote the sustainable development of the home appliance manufacturing industry.

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