What is polyurethane material? UV absorber manufacturer

Polyurethane (PU), the full name of polyurethane, is a polymer compound. It was produced by Otto Bayer and others in 1937. There are two types of polyurethanes: polyester and polyether. They can be made into polyurethane plastic (mainly foam), polyurethane fiber (called spandex in China), polyurethane rubber and elastomer. Soft polyurethane is mainly a thermoplastic linear structure, which has better stability, chemical resistance, resilience and mechanical properties than PVC foam materials, and has smaller compression set. Good heat insulation, sound insulation, shock resistance and anti-virus performance. Therefore, it is used as packaging, sound insulation, and filter materials. Rigid polyurethane plastic is light in weight, excellent in sound insulation and heat insulation performance, chemical resistance, good electrical performance, easy to process, and low water absorption. It is mainly used in construction, automobile, aviation industry, and structural materials for thermal insulation. The performance of polyurethane elastomer is between plastic and rubber, oil resistance, wear resistance, low temperature resistance, aging resistance, high hardness and elasticity. Mainly used in shoe industry and medical industry. Polyurethane can also be used to make adhesives, coatings, synthetic leather, etc. Polyurethane appeared in the 1930s. After nearly 80 years of technological development, this material has been widely used in the fields of home furnishing, construction, daily necessities, transportation, and home appliances.