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Zhengzhou Ou Nuo Building Materials Co., Ltd.
Home > News > What is polyurethane?

What is polyurethane?

2021-10-18
Polyurethane (PU), full name for polyurethane, is a kind of polymer compound. It was made in 1937 by Otto Bayer et al. Polyurethane has polyester type and polyether type two major categories. They can be made into polyurethane plastic (mainly foam), polyurethane fiber (known as spandex in China), polyurethane rubber and elastomer.
Soft polyurethane is mainly thermoplastic linear structure, it has better stability, chemical resistance, resilience and mechanical properties than PVC foam material, with smaller compression deformation. Good performance of heat insulation, sound insulation, earthquake resistance and anti-gas. Therefore used as packaging, sound insulation, filtering materials. Hard polyurethane plastic is light in weight, sound insulation, thermal insulation performance is superior, chemical resistance, good electrical performance, easy processing, low water absorption. It is mainly used in construction, automobile, aviation industry, thermal insulation structural materials. Polyurethane elastomer properties between plastic and rubber, oil resistance, wear resistance, low temperature resistance, aging resistance, high hardness, elastic. Mainly used in shoemaking industry and medical industry. Polyurethane can also make adhesives, coatings, synthetic leather and so on.
Polyurethane appeared in the 1930s, after nearly 80 years of technical development, this material has been widely used in the field of home furnding, construction, daily necessities, transportation, household appliances and so on.

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