RUBBER COMPOUND FOR CAR ENGINE MOUNT ENHANCED DYNAMIC CHARACTERISTICS BY MIXING EPDM WITH SILICA

摘要

PURPOSE: A rubber composition for automotive engine mount is provided to have longer lifetime by enhancing thermal resistance and to enhance vibration transfer retarding power and durability. CONSTITUTION: A rubber composition for automotive engine mount comprises 0.4-2 parts by weight of sulfur, 0.5-2.5 parts by weight of each N-cyclohexyl-2-benzothiazyl-sulfenamide and tetramethylthiuram disulfide, 10-60 parts by weight of carbon black, 5-15 parts by weight of silica, 3-10 parts by weight of paraffinic oil based on EPDM mixture which blends the EPDM 1 which does not include oil and EPDM 2 which includes oil at the weight ratio of 1:3. As other additives, 2-7 parts by weight of zinc oxide, 0.5-2 parts by weight of stearic acid, 1-3 parts by weight of SUN 682 (sunprax) and 1-4 parts by weight of 13 C (N-phenyl-N'-isopropyl-p-phenylenediamine) are included.