The high-quality development of the polyurethane industry and the downstream diversification and sustainable development needs have put forward higher requirements for the innovation and upgrading of polyurethane additives. Recently, at the 2023 Polyurethane Auxiliary Technology Seminar held in Zunyi, Guizhou Province, China Polyurethane Industry Association and the second annual meeting of the China Polyurethane Industry Association Auxiliary Committee, the green innovation and upgrading of the auxiliaries industry was accelerated, and the development of polyurethane and downstream industries was further promoted. High-quality development has become the general consensus of the participants.
Polyurethane additives are auxiliary chemical preparations added to improve the performance of polyurethane materials, including catalysts, foam stabilizers, initiators, flame retardants, antioxidants, light stabilizers, heat stabilizers, antibacterial agents, traffic Linking agent, vulcanizing agent, etc. Zhang Haoming, vice president of the Polyurethane Association and chairman of Jiangsu Aojia Material Technology Co., Ltd., said that the current high-quality development of the polyurethane industry has achieved outstanding results, but there are still serious homogenization, low concentration, insufficient innovation, and green development. The additive industry must adhere to the concept of green, circular, and low-carbon development to promote the sustainable development of the polyurethane industry.
Wang Fan, marketing director of Jiangsu Mesid Chemical Co., Ltd., also said that the types of polyurethane additives in my country are basically complete, but there are many middle and low-end products, the homogeneity of products is serious, and the innovation of key additives is insufficient. Multinational companies are the main players, and they must accelerate the green, high-end, safe, digital, and collaborative development of the additives industry. Taking the opportunity of the construction of the Polyurethane Auxiliary Engineering Technology Center and guided by the "Guidelines for the Development of the "14th Five-Year Plan" of China's Polyurethane Industry", Mesid is carrying out basic research, application and composite technology research on key technologies in the industry, and accelerating the development of new technologies and processes Research and development of new products and new applications, expand the compound development and application of functional, green, safe and environmentally friendly additives, actively promote the replacement of foaming agent ODS, build a polyurethane additive information, evaluation, and information service platform, and contribute to the high-quality development of the industry make a contribution.
"Aiming at the needs of emerging fields, high-end polyurethane products, and cost reduction and efficiency enhancement, we must focus on the development of general-purpose cost-effective polyurethane chain extenders and high-performance, multi-functional and environmentally friendly polyurethane chain extenders to fill product application gaps and pass the Scale application promotes product cost reduction and stable quality.” Zhou Jian, chairman of the Special Committee on Additives of the Polyurethane Association and chairman of Suzhou Xiangyuan New Materials Co., Ltd. believes that polyurethane chain extenders play a huge role in improving the performance of polyurethane elastic materials. In order to speed up the promotion of high-end, green, integrated and sustainable development of the polyurethane industry, and to develop mid-to-high-end polyurethane materials, it is necessary to accelerate the research on functional, high value-added, and green additives for polyurethane elastomers, and strengthen the compounding application Technology research and promotion. At present, Xiangyuan New Materials is accelerating the transformation from a product supplier to a system solution provider that combines products and application technical services, providing customers with customized products and supporting technical services, and promoting the transformation of new polyurethane chain extender achievements and Industrialization promotes the transformation and upgrading of the polyurethane chain extender industry.
The sustainable development trend of polyurethane and downstream industries has put forward new demands for the innovative development of green additives. Liu Chaofeng, vice president of Hengguangda Henghai Research Institute, believes that the automotive and home furnishing industries related to soft foam polyurethane products have higher and higher requirements for materials with low odor and low VOC, and the industry should speed up the development of environmentally friendly organic amine catalysts. For example, increase the molecular weight of organic amines or use reactive organic amine catalysts; improve the efficacy of catalysts and reduce the odor of the system through compound synergy; optimize raw materials and processes through the improvement of production technology to reduce carbon traces in the production process of organic amines, and at the same time reduce production costs, etc.
Shu Xingwen, general manager of Xiamen Kaiping Chemical Co., Ltd., said that polyurethane release agents need to be widely used in the molding process of automotive interior parts. With the rapid development of the automobile industry, the quality of the environment inside the car has gradually received attention, and the water-based release agent for automotive interior parts has gradually received attention. Kaiping Chemical has successively launched water-based release agent products such as car seats, ceilings, carpets, cowls, and glass wrappings. Water-based release agent products have been able to meet the production requirements of most automotive interior parts. Continue to reduce the VOC emissions of release agents, and apply water-based release agents to other fields, such as shoe soles, elastomers, glass fiber reinforced plastics, rubber and other industries, will be the research and development hotspots of release agent manufacturers.
At the meeting, many representatives also introduced the latest research and development achievements of polyurethane additives. According to Zhu Wangjun, deputy general manager of Guizhou Mingde New Material Technology Co., Ltd., stannous octoate is a commonly used metal catalyst in the polyurethane industry, but 2-ethylhexanoic acid (isooctanoic acid) is likely to remain in polyurethane products produced with stannous octoate catalyst. , there are certain health and environmental risks. The company independently developed a new type of tin-based polyurethane catalyst T900, which is stable in performance and environmentally friendly. The foam properties of its products are basically the same as those of stannous octoate products, showing good application potential.
Zhou Yuyu, R&D director of Jiangsu Aojia, said that Aojia developed the compression improving additive NOVAX EC-260, which can improve the durability, air permeability and elasticity of polyurethane sponge, and has low odor, low VOC, and does not contain prohibited substances , especially suitable for the application of mattress sponge and slow rebound sponge.
Ji Congqi, marketing director of Shanghai Qike Fluorosilicone Material Co., Ltd., said that polyurethane products are prone to aging phenomena such as yellowing in appearance and performance degradation due to environmental influences. Antioxidants need to be added to slow down the impact of oxidation. Qike company has developed a series of antioxidants for polyether, which have excellent anti-yellowing, anti-smoky redness, and anti-aldehyde effects. (Xu Yan)
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