According to different sources:

It is divided into natural rubber and synthetic rubber;

The second type is divided into general rubber and special rubber according to different uses;

Name English abbreviation

General rubber mainly includes:

1) Natural Rubber NR has good elasticity and comprehensive performance, but poor cold and alkali resistance. It is often used as automobile tire

2) styrene butadiene rubber SBR the cheapest rubber in the world as a cushion

3) ethylene propylene diene rubber EPDM has good corrosion resistance and insulation, which can be used as wear-resistant material or high-voltage reading material

4) cis-1,4-polybutadiene rubber br has the advantages of good elasticity, strong wear resistance and low temperature resistance, low heat generation, small lag loss, flexion resistance, crack resistance and dynamic performance

5) nitrile rubber NBR has good oil proof property, commonly known as oil proof rubber, often used as oil seal

6) the biggest advantages of isobutylene isoprene polymer IIBR: good air tightness, heat resistance, ozone resistance, aging resistance, chemical resistance, shock absorption and electrical insulation; the disadvantages are slow vulcanization and poor processing performance

Special rubber mainly includes:

1. Silicone rubber, silicone rubber, is tasteless and non-toxic. It is not afraid of high temperature and cold. At 300 ℃ and - 90 ℃, it is "calm" and "unchanged". It still has the original strength and elasticity. Silicone rubber also has good electrical insulation, oxygen and aging resistance, light and aging resistance, mould resistance and chemical stability.

2. There are three types of fluororubber: fluororubber 23, commonly known as No.1 rubber in China, is a copolymer of vinylidene fluoride and trifluoroethylene; fluororubber 26, commonly known as No.2 rubber in China, and DuPont brand vitona, a copolymer of vinylidene fluoride and hexafluoropropylene, with comprehensive performance better than No.1 rubber; fluororubber 246, commonly known as No.3 rubber in China, DuPont brand vitonb, and vinylidene fluoride, tetrafluoroethylene and hexafluoropropylene The fluorine content of terpolymer is higher than that of rubber 26, and it has good solvent resistance. Good chemical stability, high temperature resistance, good aging resistance, excellent vacuum performance, strong mechanical, electrical, air permeability, radiation resistance and other properties

3. Urethane rubber ur has good wear resistance, followed by good elasticity, high hardness, oil resistance and solvent resistance. The disadvantage is poor heat aging resistance

4. Neoprene CR has good wear resistance and is used as pad

CSM has good cold resistance

5. Polytetrafluoroethylene PTFE plastic king, excellent acid and alkali resistance, fluorine acid resistance, widely used, can be used as the pipeline of corrosive liquid.