PREPREG AND FIBER-REINFORCED RUBBER MATERIALS

摘要

Carbon-fiber-reinforced rubber materials in which the heat resistance, water resistance, and dimensional stability of the carbon fibers are sufficiently exhibited and which have flexural fatigue resistance sufficient for practical use. The prepreg comprises reinforcing fibers impregnated with a liquid rubber having a viscosity at 70 DEG C of 0.01 to 100 Pa.s and containing substantially no solvents. One of the fiber-reinforced rubber materials is obtained by crosslinking the liquid rubber in the prepreg. The other fiber-reinforced rubber material comprises a core formed from the prepreg obtained by impregnating reinforcing fibers with a rubber ingredient and, reinforced with the core, a base comprising a rubber ingredient of the same kind as that rubber ingredient.