Warm Global Customers
With China Plastic Machinery
With China Plastic Machinery
EPDM thermosetting plastic is a chemical product composed of ethylene propylene diene rubber. EPDM is a terpolymer of ethylene, propylene and non-conjugated dienes. The main characteristics of EPDM are its excellent resistance to oxidation, ozone and corrosion.
Because EPDM belongs to the polyolefin family, it has excellent vulcanization characteristics. Among all rubbers, EPDM has the lowest specific gravity. It can absorb a large amount of fillers and oils without affecting the characteristics. Therefore, low-cost rubber compounds can be made. Molecular structure and characteristics EPDM is a terpolymer of ethylene, propylene and non-conjugated dienes. Diene has a special structure, only one of the two bonds can be copolymerized, and the unsaturated double bond is mainly used as a crosslink. The other unsaturated will not become the main polymer chain, but only a side chain. The main polymer chain of EPDM is fully saturated. This feature makes EPDM resistant to heat, light, oxygen, and especially ozone. EPDM is essentially non-polar, resistant to polar solutions and chemicals, has low water absorption and good insulating properties. During the EPDM production process, its properties can be adjusted by changing the amount of three monomers, the ethylene-propylene ratio, the molecular weight and its distribution, and the method of vulcanization.
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