The disadvantage of epdm

by:Keyuan     2020-12-04
The disadvantage of epdm and deficiencies are as follows: 1. Rubber viscous aspects though ethylene propylene rubber has now become the most widely used in the field of non-tire products elastomer, but still can't play an important role in the tyre products production. Its reason, as long as it is ethylene propylene rubber self-adhesive and mutual viscosity difference, easy to cause tire delaminating. This problem is also one of the biggest problems in the ethylene propylene rubber application. 2. Price at the beginning of the birth of ethylene propylene rubber, raw rubber has been projected rubber personage, due to its low monomer makes some predict it will be in the rubber dosage the biggest, the lowest cost of rubber. But today, ethylene propylene rubber raw rubber price is still higher than originally expected, and belong to the big synthetic rubber in the high, Although the price is lower than nitrile rubber and neoprene, but higher than that of styrene butadiene rubber, butadiene rubber, isoprene rubber and butyl rubber) 3. Binary ethylene-propylene rubber vulcanization rate aspects of molecular chain saturated completely, does not contain active high double bond, so far still unable to adopt cross-linked sulphur vulcanization, only with sulfide slower peroxide vulcanizing, thereby limiting the valuable application of elastomer. 4. Other aspects of ethylene propylene rubber flame retardant, oil resistance, air tightness and poor. So ethylene propylene rubber can't separate application in mineral oil, hydrocarbon solvent resistance of products; When used in flame retardant products, also want to add more flame retardants than other elastomer packing, so the high cost and poor flame retardant effect also; And used as inner tube, butyl rubber and part will reduce the air tightness of butyl rubber inner tube, and with limited. About ethylene propylene rubber articles recommendation: epdm is used for high temperature resistant conveyor belt status of high class related product recommendations: epdm waterproofing foam epdm
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