Function of polyurethane
Release time：
2022-07-13
Polyurethane can be used to manufacture plastics, rubber, fiber, rigid and soft foam plastics, adhesives and coatings, etc. It can be used in various fields of people's life, with a wide range of applications.
Polyurethane can be used to manufacture plastics, rubber, fiber, rigid and soft foam plastics, adhesives and coatings, etc. It can be used in various fields of people's life, with a wide range of applications.
1. Polyurethane foam material:
It is divided into rigid polyurethane foam, semi rigid polyurethane foam and soft polyurethane foam materials. Rigid polyurethane foam is mainly used for building thermal insulation materials, thermal insulation materials (thermal insulation of pipeline facilities, etc.), articles for daily use (bedding materials of beds, sofas, etc., thermal insulation layers of refrigerators, air conditioners, etc., and core materials of surfboards, etc.), and transportation tools (cushion, ceiling, etc. of automobiles, planes, and railway vehicles).
2. Polyurethane elastomer:
Polyurethane elastomer has good tensile strength, tear resistance, impact resistance, abrasion resistance, weather resistance, hydrolysis resistance, oil resistance and other advantages. It is mainly used for coating materials (such as protection of hoses, gaskets, tires, rollers, gears, pipes, etc.), insulators, soles, solid tires, etc.
3. Polyurethane waterproof material:
The polyurethane waterproof material is very convenient to use. It can be mixed and coated at the site, and then solidified with moisture at room temperature to obtain a waterproof layer with no joints, rubber elasticity and good performance. It is easy to repair after damage. It is generally used as flooring material, track and field track material, racecourse, park floor material, thermal insulation window frame, etc.
4. Polyurethane coating:
Polyurethane coating has strong adhesion, and the film has good wear resistance, water resistance and drug resistance. It is mainly used in furniture coatings, building materials coatings and industrial printing inks.
5. Polyurethane adhesive:
The performance of the cured product can be adjusted by adjusting the ratio of isocyanate and polyol to make it highly adhesive to the substrate, good water resistance, oil resistance and chemical resistance. Polyurethane adhesive is mainly used in packaging, construction, wood, automobile, shoemaking and other industries.
6. Biomedical materials:
Polyurethane has good biocompatibility, so it is gradually used as biomedical materials. It can be used in the manufacture of artificial heart pacemaker, artificial blood vessel, artificial bone, artificial esophagus, artificial kidney, artificial dialysis membrane, etc.
source：
Qijia.com
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