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[Chemical Knowledge]：What kind of rubber is EPDM? This article will show you the characteristics and application of EPDM rubber.

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EPDM is a synthetic rubber, the full name of ethylene propylene rubber, also known as EPDM. EPDM rubber has the characteristics of oxidation resistance, ultraviolet resistance, acid and alkali resistance, and good cold resistance. It is widely used in automobiles, construction, electronic appliances, aerospace and other fields.

1. The definition and characteristics of EPDM rubber
1. Definition:
ethylene propylene rubber (EPDM) is an amorphous polymer compound, which is copolymerized by ethylene, propylene, radioactive initiator and impurities. It is a synthetic rubber with good physical properties (especially high temperature physical properties).

2. Characteristics:
① Excellent oxidation resistance: EPDM rubber has excellent oxidation resistance and is not easy to age.
② Good cold resistance: EPDM rubber has excellent cold resistance. In low temperature environment, the hardness of EPDM rubber does not change much.
③ Good acid and alkali resistance: EPDM rubber has strong corrosion resistance to acids, alkalis, salts and oxidants.
④ Not affected by ultraviolet rays and oxygen: EPDM rubber is not easily damaged by solar radiation such as ultraviolet rays, oxygen and light.
⑤ Good sealing: EPDM rubber has good sealing performance.

2. the advantages of EPDM rubber
1. Widely used: EPDM rubber is a polymer material widely used in automobiles, building materials, electronic appliances, medical equipment, aerospace and other fields.
2. Excellent physical properties: EPDM rubber has good mechanical strength, tear resistance, elasticity, elongation, resistance to cyclic fracture and corrosion resistance and other physical properties.
3. Good environmental protection: EPDM rubber has good environmental protection performance, low pollution level, and will not pollute the environment.

3. EPDM rubber application field
EPDM rubber is widely used in various fields, mainly including the following aspects:
1. Automotive field: EPDM rubber is widely used in the manufacture of automotive parts, such as doors, tires, seals, Windshield wiper, cooling system, air conditioning system, etc.
2. Construction field: EPDM rubber is widely used in the manufacture of building materials, such as skylights, thermal insulation materials, roof waterproof layer, sealing strip, vertical joint board, etc.
3. Electronic and electrical field: EPDM rubber is widely used in the manufacture of electronic and electrical parts, such as insulating materials, sealing strips, shock-absorbing materials, sound box shockproof pads, etc.
4. Aerospace field: EPDM rubber is widely used in the aerospace field, such as pipe seals, pipe sound-absorbing materials, wing anti-skid pads, etc.
EPDM rubber meets the requirements of various physical properties to a certain extent, and at the same time meets the requirements of environmental protection. While being widely used, EPDM rubber has also made important contributions to our environmental protection.