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PU introduction

PU introduction

2021年4月25日
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Polyurethane (PU), whose full name is polyurethane, is a polymer compound. It was produced in 1937 by Otto Bayer and others. Polyurethane has two categories: polyester type and polyether type. They can be made into polyurethane plastic (mainly foam), polyurethane fiber (called spandex in China), polyurethane rubber and elastomers.


Soft polyurethane mainly has a thermoplastic linear structure. It has better stability, chemical resistance, resilience and mechanical properties than PVC foam materials, and has less compression deformation. Good heat insulation, sound insulation, anti-vibration and anti-virus performance. Therefore, it is used as packaging, sound insulation, and filter material. Rigid polyurethane plastic is light in weight, excellent in sound insulation, heat insulation, chemical resistance, good electrical properties, easy to process, and low water absorption. It is mainly used as a structural material for construction, automobile, aviation industry, and thermal insulation. The performance of polyurethane elastomer is between plastic and rubber, oil resistance, abrasion resistance, low temperature resistance, aging resistance, high hardness and elasticity. Mainly used in the shoe industry and medical industry. Polyurethane can also be used to make adhesives, coatings, synthetic leather, etc.


Polyurethane appeared in the 1930s. After nearly eighty years of technological development, this material has been widely used in the field of home furnishing, construction, daily necessities, transportation, and home appliances.

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