RUBBER COMPOUNDS FOR AUTOMOBILE ENGINE OIL SEAL HAVING EXCELLENT SEALING AND SLIP CHARACTERISTICS

摘要

A rubber composition for an automobile engine oil seal is provided to improve excellent seal CHARACTERISTIC of the front seal and rear seal and durability by optimizing the kind of the fluorine rubber, and to improve the leakage property of oil seal and wear property by together using K2O.TiO2 filler and graphite as the lubrication filler. A rubber composition for an automobile engine oil seal comprises Viton GLT(DuPont corp) 100.0 parts by weight as a fluorinated rubber, K2O.TiO2 30 parts by weight, graphite 5 parts by weight, peroxide cross-linker 5 parts by weight, MgO 6 parts by weight as a metal oxide cross-linker and processing aid 2 parts by weight. The K2O.TiO2 and graphite are used as the lubrication filler. The fluorinated rubber is a copolymer consisting of perfluoro methyl vinyl ether, hexafluoro propylene, vinylidene fluoride, and tetrafluoro ethylene.