Solvent-free polyurethane (solvent-free PU) has broad application prospects and standardization has become the mainstream trend of industry development.

Solvent-free polyurethane, also known as solvent-free PU and solvent-free rigid foam polyurethane, refers to rigid foam polyurethane that does not contain components that can volatilize into the atmosphere. Compared with traditional polyurethane, solvent-free polyurethane has the advantages of strong chemical resistance, large load-bearing capacity, good corrosion resistance, UV resistance, and green environmental protection. It is widely used in transportation, civil construction, textiles, pharmaceutical packaging, food processing, and sporting goods. , plastics and other fields have broad application prospects.

Solvent-free polyurethane preparation usually uses dimethylol propionic acid, polyisocyanate, polyester/polyether polyol, etc. as raw materials, adding polyamine chain extender and terminal amino polyether, and the finished product is obtained through curing reaction. Solvent-free polyurethane preparation technology has the advantages of green environmental protection, low operating costs, etc., and can adjust the film-forming properties of polyurethane within the specified range. In recent years, as the independent research and development capabilities of local enterprises have improved, the maturity of my country’s solvent-free polyurethane technology has continued to improve, driving the development of the industry to further accelerate.

According to the “2023-2028 China Solvent-free Polyurethane (Solvent-free PU) Industry Market In-depth Research and Development Prospects Forecast Report span>》shows that solvent-free polyurethane laminating adhesive, solvent-free polyurethane elastomer, solvent-free polyurethane coating, solvent-free polyurethane adhesive, etc. are solvent-free polyurethane end products. As a kind of anti-corrosion coating, solvent-free polyurethane coating can be used for internal and external anti-corrosion of various storage tanks, internal and external anti-corrosion of pipelines, construction anti-corrosion, etc. As my country’s anti-corrosion coating industry gradually develops in the direction of green and environmental protection, solvent-free polyurethane coatings are in strong market demand as a substitute for solvent-free polyurethane coatings, which provides favorable conditions for the development of the solvent-free polyurethane industry.

Solvent-free polyurethane has broad application prospects in the plastics field and can be used to produce artificial leather, plastic runways and other plastic products. In 2022, the Ministry of Industry and Information Technology issued the national standard “Water-based/Solvent-free Polyurethane Composite Artificial Leather” (QB/T5754-2022). This standard has been officially implemented on April 1, 2023, and clearly regulates the packaging, marking and labeling of water-based/solvent-free polyurethane composite artificial leather. Production requirements and other contents are strictly stipulated. In the future, as the application scope of solvent-free polyurethane continues to expand, standardization will become the mainstream trend of industry development.

The main manufacturers of solvent-free polyurethane in my country include Amway Co., Ltd., Qingdao Ocean, Huide Technology, Kangda New Materials, Feilu Co., Ltd., Keshun Co., Ltd., etc. Keshun Co., Ltd. focuses on the research and development, production and sales of new waterproof building materials, and has independent research and development capabilities for solvent-free polyurethane waterproof coatings.

Industry analysts said that with the gradual implementation of national environmental protection policies, my country’s solvent-free polyurethane market demand will further grow, and the industry development prospects are relatively bright. good. In recent years, Chinese enterprises and scientific research institutions have continued to increase investment in the research and development of solvent-free polyurethane, driving the continuous expansion of its applicable scope. It is expected that standardization will become the mainstream development trend of my country’s solvent-free polyurethane industry in the future.