Polyurethane material is short for polyurethane, and its English name is polyurethane, abbreviated as PU. It is a polymer material. Polyurethane is an emerging organic polymer material, known as the "fifth largest plastic" and widely used in many fields of the national economy due to its excellent performance. The product application fields involve light industry, chemical industry, electronics, textiles, medical treatment, construction, building materials, automobiles, national defense, aerospace, aviation, etc.