| abstract |
A composition for anti-vibration rubber, wherein, with respect to 100 parts by weight of ethylene-propylene-diene copolymer rubber (EPDM), (A) an average particle size of 60-100 nm, an iodine adsorption amount of 14-23 g/kg, 32 to 60 parts by weight of carbon black A with DBP oil absorption of 100ml/100g or more, (B) carbon black B with an average particle diameter of 40 to 50 nm, iodine adsorption of 35 to 49 g/kg, and DBP oil absorption of 100 to 160 ml/100g of carbon black B 10 to 30 parts by weight, (C) 2-10 parts by weight of ethylene-α-olefin copolymer, and (D) 0-16 parts by weight of silica. The composition for vibration-proof rubber can be effectively used for low dynamic magnification (small increase in elastic modulus as the deformation speed of the rubber increases), durability (resistance to damage caused by repeated deformation of the rubber) Vulcanization molding material for center bearing supports, etc., with excellent resistance), heat resistance, etc. |