What types of rubber materials are there?

There are many types of rubber materials, which can be mainly divided into two categories: natural rubber and synthetic rubber, and each category contains many different types of rubber. The following are some common types of rubber and their codes:

1. Natural rubber, code NR: Made from rubber tree latex, with good elasticity, wear resistance and tear resistance.

2. Styrene-butadiene rubber, code SBR: Made from butadiene and styrene copolymerization, with wear resistance and aging resistance.

3. Chloroprene rubber, code CR: Made from chloroprene, with good weather resistance, oil resistance and aging resistance.

4. Ethylene-propylene rubber, code EPDM: Made from ethylene, propylene and a small amount of non-conjugated dienes, with excellent weather resistance, oxidation resistance and electrical insulation properties.

5. Butyl rubber, code IIR: Made from isobutylene and a small amount of isoprene copolymerization, with good gas barrier properties, widely used in airtight products.

6. Fluororubber, code FKM or FPM: has excellent high temperature resistance and chemical corrosion resistance, suitable for extreme environments.

7. Silicone rubber, code SILICOME or VMQ: has high temperature durability, electrical insulation and excellent weather resistance, and is widely used in electronics, electricity, aviation and other fields.

8. Polyurethane rubber, code PU: made by the reaction of isocyanate and polyol, with excellent physical and mechanical properties and low temperature flexibility.

These rubber types and codes are classified according to their composition, performance and application fields, and each rubber has its unique application scenario.