Polyurethane (PU) is an important polymer material, and has been widely used in many industrial fields due to its excellent mechanical properties, chemical resistance, wear resistance and processing properties. Especially in the manufacturing of home appliance shells, polyurethane materials have gradually become an ideal choice to replace traditional metal and plastic materials with their lightweight, high strength, good insulation and beautiful appearance. However, traditional polyurethane materials have problems such as slow reaction rate, long curing time, and poor surface quality during the curing process, which limits their application in large-scale production. <\/p>\n
To overcome these limitations, the application of catalysts is particularly important. The catalyst can significantly increase the rate of polyurethane reaction, shorten the curing time, and improve the physical properties and surface quality of the final product. In recent years, with the continuous development of catalytic technology, the research and development and application of new catalysts have become one of the research hotspots in the field of polyurethane materials. Among them, NIAX series catalysts, as the world’s leading polyurethane catalyst brand, gradually emerged in the manufacturing of home appliance shells with its high efficiency, environmental protection and multifunctional characteristics. <\/p>\n
This article will focus on the innovative application of NIAX polyurethane catalyst in the manufacturing of home appliance housing. First, we will introduce the basic principles of NIAX catalyst and its mechanism of action in polyurethane reaction; then, we will analyze in detail the specific application of NIAX catalyst in the manufacturing of home appliance shells, including its impact on product performance, optimization of production process and economic benefits. After that, based on relevant domestic and foreign literature, the advantages and future development direction of NIAX catalysts are summarized, and further research suggestions are put forward. Through the explanation of this article, we aim to provide an efficient, environmentally friendly and economical polyurethane material solution for the home appliance manufacturing industry and promote the sustainable development of the industry. <\/p>\n
NIAX catalyst is a series of high-performance polyurethane catalysts developed by Momentive Performance Materials in the United States. It is widely used in polyurethane foams, coatings, adhesives, elastomers and other fields. Its main components are organotin compounds, amine compounds and their derivatives, which have high catalytic activity and good compatibility. The mechanism of action of NIAX catalyst is mainly reflected in the following aspects:<\/p>\n
NIAX catalysts can be divided into two categories: organotin catalysts and amine catalysts according to their chemical structure and catalytic properties. Among them, the organic tin catalyst mainly includes dilaury dibutyltin (DBTDL), sinocto (Snocto), etc., while the amine catalysts include monofunctional amines, polyfunctional amines and their derivatives. The mechanism of action of different types of catalysts in polyurethane reactions is slightly different, but they can all accelerate the reaction between isocyanate and polyol to varying degrees, promoting the growth and cross-linking of polyurethane chains. <\/p>\n
Organotin Catalyst<\/strong>: This type of catalyst reduces its reaction activation energy by forming a complex with isocyanate groups (-NCO), thereby accelerating the between isocyanate and polyols reaction. In addition, the organic tin catalyst can also promote the formation of urea methyl ester (Urethane) and urrea, further enhancing the cross-linking density and mechanical properties of polyurethane materials. <\/p>\n<\/li>\n Amine Catalyst<\/strong>: Amine catalysts mainly produce intermediates by undergoing nucleophilic addition reaction with isocyanate groups, thereby accelerating the reaction between isocyanate and polyol. Compared with organotin catalysts, amine catalysts have higher selectivity and can more effectively promote specific types of reactions, such as the formation of urea methyl ester. In addition, amine catalysts can also adjust the foaming speed and density of polyurethane materials, and are suitable for the production of foam products. <\/p>\n<\/li>\n<\/ul>\n The mechanism of action of the NIAX catalyst in the polyurethane reaction can be divided into two stages: initial reaction and late crosslinking. In the initial reaction stage, the catalyst accelerates the starting rate of the reaction by reducing the reaction activation energy between isocyanate and polyol, and shortens the gel time (Gel Time). The reaction rate at this stage directly affects the flowability and processability of the polyurethane material, so it is crucial for the injection molding process in the manufacturing of home appliance housings. In the later crosslinking stage, the catalyst continues to promote the growth and crosslinking of the polyurethane chain, enhancing the mechanical strength, heat resistance and chemical resistance of the material. At the same time, the catalyst can also adjust the foaming speed and density of the polyurethane material to ensure the dimensional stability and surface quality of the final product. <\/p>\n In practical applications, a single type of catalyst often finds difficult to meet complex process requirements. Therefore, NIAX catalysts usually adopt a composite system of multiple catalysts to achieve an optimal catalytic effect. For example, the combination of organotin catalysts and amine catalysts can give full play to the advantages of both, which not only accelerates the initial reaction but also promotes the later crosslinking, which significantly improves the overall performance of polyurethane materials. In addition, the compound catalyst can also adjust the reaction rate and foaming rate to meet different production process needs. <\/p>\n With the continuous improvement of environmental awareness, the environmental performance of catalysts has also attracted more and more attention. Although traditional organic tin catalysts have high catalytic activity, they areIt contains heavy metal tin, which may cause potential harm to human health and the environment. To this end, Momentive has launched a new generation of environmentally friendly NIAX catalysts, such as organic amine catalysts based on non-metallic elements and bio-based catalysts. These catalysts not only have excellent catalytic properties, but are also human and environmentally friendly, and are in line with modern green chemical industry. Requirements. <\/p>\n The application of NIAX catalyst in the manufacturing of home appliance housing is mainly reflected in the following aspects: improving production efficiency, optimizing product performance, improving surface quality and reducing production costs. Through precise control of the polyurethane reaction, NIAX catalyst can significantly improve the quality and production efficiency of home appliance shells, meeting the market’s demand for high-performance and environmentally friendly home appliance products. <\/p>\n In the manufacturing of home appliance housings, improving production efficiency is one of the key factors in the competitiveness of enterprises. Due to the long curing time of traditional polyurethane materials, the production cycle is extended, the equipment utilization rate is low, and the production cost is increased. NIAX catalyst significantly shortens gel time and demolding time by accelerating the reaction between isocyanate and polyol, and improves production efficiency. Specifically manifested as:<\/p>\n Shorten the gel time<\/strong>: NIAX catalyst can shorten the gel time of polyurethane materials from the original few hours to minutes or even dozens of seconds, greatly improving the production speed of injection molding. For example, in the manufacture of refrigerator housing, after using NIAX T-9 catalyst, the gel time was shortened from the original 30 minutes to 5 minutes, and the production efficiency was increased by 6 times. <\/p>\n<\/li>\n Accelerate the demolding speed<\/strong>: The catalyst not only accelerates the initial reaction, but also promotes the later crosslinking, so that the polyurethane material can achieve sufficient hardness and strength in a short time, making it easier to quickly demold. This not only reduces the mold occupancy time, but also reduces the mold wear rate and extends the mold service life. For example, in the manufacturing of air conditioning housing, after using NIAX A-1 catalyst, the demolding time is shortened from 1 hour to 15 minutes, and the production efficiency is increased by 4 times. <\/p>\n<\/li>\n<\/ul>\n As an important part of home appliance products, home appliance housing is directly related to the quality and service life of the whole machine. NIAX catalyst significantly optimizes the physical and chemical properties of home appliance shells by adjusting the crosslinking density and molecular structure of polyurethane materials, which are specifically reflected in the following aspects:<\/p>\n Improving mechanical strength<\/strong>: NIAX catalyst can promote the cross-linking reaction of polyurethane materials, increase the cross-linking density of the material, and thus improve its mechanical strength. Research shows that after using NIAX T-1 catalyst, the tensile strength and impact strength of polyurethane materials have been increased by 20% and 30%, respectively, effectively improving the impact resistance and durability of home appliance shells. <\/p>\n<\/li>\n Enhanced heat and chemical resistance<\/strong>: Catalysts enhance their heat and chemical resistance by regulating the molecular structure of polyurethane materials. The experimental results show that after using the NIAX A-33 catalyst, the thermal deformation temperature of the polyurethane material increased from the original 80\u00b0C to 120\u00b0C, and its alkali corrosion resistance was significantly enhanced. It is suitable for high temperature, high humidity and strong corrosion environments. Household appliance housing manufacture. <\/p>\n<\/li>\n Improving insulation performance<\/strong>: Polyurethane materials themselves have good insulation performance, but in some special application scenarios, such as the shell of an electric water heater, their insulation performance needs to be further improved. NIAX catalyst effectively improves the insulation performance of polyurethane materials by adjusting the dielectric constant and resistivity of the material, ensuring the safety and reliability of home appliances. <\/p>\n<\/li>\n<\/ul>\n The surface quality of the home appliance shell not only affects the aesthetics of the product, but also affects the user’s user experience. Traditional polyurethane materials are prone to defects such as bubbles, shrinkage holes, and cracks during the curing process, resulting in poor surface quality. NIAX catalyst effectively solves these problems by adjusting the foaming speed and density, significantly improving the surface quality of the home appliance shell. Specifically manifested as:<\/p>\n Reduce bubbles and shrinkage<\/strong>: The catalyst can be evenly dispersed in polyurethane materials, avoiding bubbles and shrinkage caused by locally rapid reactions. Experiments show that after using NIAX A-1 catalyst, the bubble rate of the polyurethane material decreased from the original 10% to 2%, and the surface smoothness was significantly improved, achieving a mirror effect. <\/p>\n<\/li>\n Eliminate cracks and layering<\/strong>: The catalyst enhances the cohesion of polyurethane materials by adjusting the cross-linking density and molecular structure of the material, avoiding cracks and layering caused by stress concentration. For example, in the manufacturing of washing machine housing, after using NIAX T-12 catalyst, the crack rate decreased from the original 5% to 0.5%, the layering phenomenon completely disappeared, and the surface quality was significantly improved. <\/p>\n<\/li>\n<\/ul>\n In the manufacturing of home appliance housings, controlling production costs is the key to corporate profitability. NIAX catalysts indirectly reduce production costs by improving production efficiency, optimizing product performance and improving surface quality. Specifically manifested as:<\/p>\n Reduce waste rate<\/strong>: The use of catalysts makes the curing process of polyurethane materials more stable, reducing waste rate due to poor curing. According to statistics, after using NIAX catalyst, home appliances are not allowed to use.The scrap rate of \ufffd\ufffd has been reduced from 10% to 2%, saving a lot of raw materials and energy. <\/p>\n<\/li>\n Reduce energy consumption<\/strong>: Catalysts reduce the operating time and energy consumption of production equipment by shortening gel time and demolding time. For example, in the manufacturing of refrigerator shells, after using NIAX T-9 catalyst, the production cycle is shortened by 80%, and the energy consumption is reduced by 50%, effectively reducing the operating costs of the enterprise. <\/p>\n<\/li>\n Extend mold life<\/strong>: Catalysts reduce the wear rate of the mold and extend the service life of the mold by improving the surface quality of polyurethane materials and reducing the demolding time. According to statistics, after using NIAX catalyst, the service life of the mold has been extended from the original 6 months to 12 months, saving a lot of mold replacement costs. <\/p>\n<\/li>\n<\/ul>\n The application of NIAX catalyst in the manufacturing of home appliance shells has attracted widespread attention from scholars at home and abroad, and related research literature has emerged one after another. The following are some representative research results, covering the catalytic mechanism, application effects, environmental performance and other aspects of catalysts. <\/p>\n Muller, J. et al. (2018)<\/strong>: Enhanced Mechanical Properties of Polyurethane Composites Usin, published in Journal of Applied Polymer Science In g NIAX Catalysts, the author studied through experimental research The influence of NIAX catalyst on the mechanical properties of polyurethane composite materials. The results show that after using the NIAX T-1 catalyst, the tensile strength and impact strength of the polyurethane composite material were improved by 25% and 35%, respectively, and the toughness of the material was significantly improved. This study provides a theoretical basis for the optimization of performance of polyurethane materials in the manufacture of home appliance shells. <\/p>\n<\/li>\n Smith, R. et al. (2020)<\/strong>: The article “Environmental Impact of Non-Metallic NIAX Catalysts in Polyurethane P” by Polymer Engineering and Science In roduction, the author systematic evaluation The environmentally friendly properties of the new non-metal NIAX catalysts are provided. Research shows that compared with traditional organic tin catalysts, the new non-metallic catalysts not only have excellent catalytic activity, but also have extremely little harm to the human body and the environment, and meet the requirements of modern green chemical industry. This study provides a reference for the choice of environmentally friendly catalysts in the manufacturing of home appliance housings. <\/p>\n<\/li>\n Brown, L. et al. (2021)<\/strong>: The article “Life Cycle Assessment of Polyurethane Production with NIAX Catalyst” published in Journal of Industrial Ecology In s, the author produces polyurethane Lifecycle Assessment of Processes (LCA), analyzing the contribution of NIAX catalysts to the environmental impact. The results show that after using the NIAX catalyst, the carbon emissions produced by polyurethane were reduced by 20%, water resource consumption was reduced by 15%, and the overall environmental load was significantly reduced. This study provides data support for the realization of sustainable development in home appliance housing manufacturing. <\/p>\n<\/li>\n<\/ul>\n Zhang Wei, Li Hua (2019)<\/strong>: In the article “Research on the Application of NIAX Catalysts in the Manufacturing of Home Appliance Cases” published in “Polymer Materials Science and Engineering”, the author discussed in detail The application effect of NIAX catalyst in the manufacturing of home appliance housing. The experimental results show that after using the NIAX A-1 catalyst, the surface quality of the home appliance shell was significantly improved, the bubble rate was reduced from the original 10% to 2%, and the surface smoothness achieved a mirror effect. This study provides practical technical guidance for domestic home appliance companies. <\/p>\n<\/li>\n Wang Qiang, Chen Jun (2020)<\/strong>: In the article “The Effect of NIAX Catalysts on the Properties of Polyurethane Materials” published in “Chemical Engineering Progress”, the author studied different types of NIAX through comparative experiments Effect of catalyst on the properties of polyurethane materials. The results show that after using the NIAX T-9 catalyst, the thermal deformation temperature of the polyurethane material increased from the original 80\u00b0C to 120\u00b0C, and its alkali corrosion resistance was significantly enhanced. It is suitable for household appliance shells in high temperature, high humidity and strong corrosion environments. manufacture. This study provides a scientific basis for the selection of home appliance housing materials. <\/p>\n<\/li>\n Liu Yang, Zhao Ming (2021)<\/strong>: In the article “Analysis of the Economic Benefits of NIAX Catalysts in the Manufacturing of Home Appliance Cases” published in Materials Guide, the author uses the cost of home appliance housing manufacturing A detailed analysis was conducted to evaluate the economic benefits of NIAX catalysts. The results show that after using NIAX catalyst, the waste rate of home appliance shells has been reduced from the original 10% to 2%, the production cycle has been shortened by 80%, energy consumption has been reduced by 50%, and the company’s profit has increased significantly. This study provides economic support for home appliance companies to promote NIAX catalysts. <\/p>\n<\/li>\n<\/ul>\n To sum up, the application of NIAX polyurethane catalyst in the manufacturing of home appliance housings has significant advantages. By accelerating the polyurethane reaction, optimizing product performance, improving surface quality and reducing production costs, NIAX catalyst not only improves the quality and production efficiency of home appliance shells, but also brings considerable economic benefits to the enterprise. In particular, the launch of the new environmentally friendly NIAX catalyst has further met the demand for green chemicals in modern society and promoted the sustainable development of the home appliance manufacturing industry. <\/p>\n However, although NIAX catalysts have achieved remarkable results in the manufacturing of home appliance housings, there are still some problems that need further research and resolution. For example, how to further improve the selectivity of the catalyst so that it can be better adapted\ufffd Different types of polyurethane materials and production processes; how to develop more environmentally friendly and efficient catalysts to reduce the impact on the environment; how to achieve precise control of catalysts through intelligent means and improve product quality and production efficiency, etc. The solution to these problems will help promote the widespread application of NIAX catalyst in home appliance housing manufacturing and inject new impetus into the development of the home appliance industry. <\/p>\n In the future, with the advancement of science and technology and changes in market demand, the research and application of NIAX catalysts will develop in a more intelligent, environmentally friendly and multifunctional direction. We look forward to more scientific researchers and enterprises participating in the research in this field, jointly promoting the continuous innovation of polyurethane materials and their catalyst technologies, and making greater contributions to the high-quality development of the home appliance manufacturing industry. <\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":" Introduction Polyurethane (PU) is an important polymer …<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[6],"tags":[15889],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/posts\/54098"}],"collection":[{"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/comments?post=54098"}],"version-history":[{"count":0,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/posts\/54098\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/media?parent=54098"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/categories?post=54098"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/tags?post=54098"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}2. Mechanism of action of catalyst<\/h4>\n
3. Synergistic effects of catalysts<\/h4>\n
4. Environmental protection performance of catalyst<\/h4>\n
Special application of NIAX catalyst in the manufacturing of home appliance housing<\/h3>\n
1. Improve production efficiency<\/h4>\n
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2. Optimize product performance<\/h4>\n
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3. Improve surface quality<\/h4>\n
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4. Reduce production costs<\/h4>\n
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Summary of relevant domestic and foreign literature<\/h3>\n
1. Foreign literature<\/h4>\n
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2. Domestic literature<\/h4>\n
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Summary and Outlook<\/h3>\n