What is pu resin?

Pu resin refers to polyurethane, the full name is polyurethane. A polymer compound. 1937 is the polyurethane made by O. Bayer and others, which can be divided into polyester type and polyether type. It can be made into polyurethane plastic (mainly foam plastic), polyurethane fiber (called spandex in China), polyurethane rubber and elastomer.

Flexible polyurethane (PU) is a thermoplastic linear structure, which has better stability, chemical resistance, resilience and mechanical properties than PVC foam, and has less compression deformation.

Good heat insulation, sound insulation, earthquake resistance and anti-virus performance. Therefore, it is used as packaging, sound insulation and filtering materials. Rigid PU plastic has the advantages of light weight, excellent sound insulation, chemical resistance, good electrical properties, easy processing and low water absorption.

Extended data:

The research, development and application of polyurethane coatings began in 1950s. With the continuous improvement of the public's material living standards;

The development speed of a series of industries such as automobile processing, furniture manufacturing and processing, petrochemical industry, machinery industry, bridges and ships is constantly improving. Polyurethane coatings have entered a new stage of rapid development with its outstanding performance advantages.

From 1980 to 2004, the usage of polyurethane coatings in various industries showed a very rapid development trend, and the output of polyurethane coatings was second only to alkyd coatings, becoming the fourth largest variety in the field of coatings.

References:

Baidu encyclopedia-polyurethane