EPDM is ethylene, propylene, mix a small amount of the conjugate olefin copolymer, is one of the types of ethylene propylene rubber, expressed in EPDM, because its main chain is made up of chemical stability of saturated hydrocarbon, and only in the side chain containing unsaturated double bond, so the ozone resistance, heat resistance, excellent weather resistance and aging resistance, can be widely used in auto parts, building waterproof materials, wire and cable sheath, heat-resistant rubber hose, adhesive tape, automotive seals, and other fields.
With the recovery of Chinese economy, automobile, construction and other pillar industries have entered a period of rapid development, which has significantly boosted the market demand for EPDM.In 2012, the apparent consumption of EPDM in China reached 227,500 tons. The import dependence of the industry is still very high, and it is still growing in recent years.In the future, the rubber market of EPDM will enter a demand peak. In 2015, the total domestic demand for EPDM will reach about 320,000 tons, among which automobile and polymer modification will remain the two most important consumption fields.
EPDM can be cured using organic peroxide or sulfur.However, compared with sulfuration, the peroxide crosslinked EPDM has higher temperature resistance when used in the wire and cable industry.Compared with silicone, EPDM rubber parts are generally cheaper than silicone parts. They are also relatively resistant to moisture, puncture, tear and ozone.And silicone processing will be more in place, the temperature level will be better, the price will be relatively.