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Take you to learn about polyurethane manufacturers of polyurethane

2019-07-29

聚氨酯厂家

The full name is polyurethane. A high molecular compound. It was made in 1937 by O. Bayer et al. Polyurethanes are divided into polyester and polyether types. They can be made into polyurethane plastics (mainly foam plastics), polyurethane fibers (known as spandex in China), polyurethane rubber and elastomers.




Soft polyurethane (PU) is mainly a thermoplastic linear structure, it has better stability, chemical resistance, resilience and mechanical properties than PVC foaming materials, with a smaller compression variation. Good performance in heat insulation, sound insulation, earthquake resistance and poison resistance. Therefore used for packaging, sound insulation, filtration materials. Hard PU plastic has light weight, excellent sound insulation and thermal insulation properties, chemical resistance, good electrical properties, easy processing and low water absorption. It is mainly used in construction, automobile, aviation industry, thermal insulation structural materials. Polyurethane elastomer has properties between plastic and rubber, oil resistance, abrasion resistance, low temperature resistance, aging resistance, high hardness and elasticity. Mainly used in the footwear 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 technological development, it has been widely used in the fields of household, construction, daily necessities, transportation and household appliances.




It is widely used in daily life, such as paint and coating in furniture, refrigerator and freezer in household appliances, roof waterproof and insulation layer and interior and exterior coating in construction industry. It can also be made into a variety of polyurethane materials such as polyurethane sole, polyurethane fiber, polyurethane sealant and so on. Generally speaking, polyurethane products have wide adjustable range, strong adaptability, biological aging resistance and moderate price.


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