FLUORINE-CONTAINING RUBBER COMPOSITION

摘要

A fluorine-containing rubber composition comprising: 100 parts by weight of a fluorine-containing rubber comprising a (vinylidene fluoride)-hexafluoropropylene- tetrafluoroethylene-ethylene-perfluoro(methyl vinyl ether) five-component polymer; and 1 to 100 parts by weight of a needle-shaped or fibrous filler having an average fiber diameter of 5μm or less and an average fiber length of 40 to 80μm. The fluorine-containing rubber composition can be used suitably as, for example, a material for molding a bi-directional-rotation-type oil seal which enables a fluid to be sealed continuously and satisfactorily in both a normal-direction rotational operation and a reverse-direction rotational operation.