What kind of rubber material is EPDM?
Three EPDM is ethylene, propylene and non conjugated diene copolymer three yuan, began commercial production in 1963. The whole world is the annual consumption of 800 thousand tons of.EPDM the main characteristic is its excellent resistance to oxidation, ozone resistant and anti erosion ability. Because three EPDM rubber is vulcanized polyolefin family. It has excellent characteristics. Among all the rubber, EPDM has the lowest proportion. It can absorb a large amount of filler and oil and do not affect the properties. It can produce low-cost rubber compounds.
Up to two keys: one can be polymerized and one can be vulcanizedThe reaction is similar to the two basic monomersThe primary key random aggregation produces a uniform distributionSufficiently volatile to facilitate removal from the polymerFinally, the curing speed of the polymer is appropriateInfluence of type and content of diene on properties of polymersThree yuan ethylene propylene production is mainly using ENB and DCPD.The most widely used in ethylene propylene is ENB, which is much faster than DCPD products. Under the same polymerization conditions, the nature of the third monomer affects the long chain branching and increases in the following order: EPM
Three yuan is three yuan, a copolymer of ethylene propylene diene and non conjugated diene. With special structure, one of only two keys can be copolymerized, unsaturated double bonds in the main chain. As another unsaturated polymer backbone will not become, will become the side of the side chain. The main polymer chain three yuan is fully saturated. This characteristic makes three yuan can resist heat, light, oxygen, especially ozone. Three yuan is essentially non-polar, resistant to polar solvents and chemicals, low water absorption, good insulating properties.In the three yuan ethylene propylene production process, by changing the number of three monomers, ethylene, propylene ratio, molecular weight and its distribution, as well as vulcanization method, can adjust its characteristicsThe choice of EPDM third monomer
