Composition of epoxy resin, cured epoxy resin product, pre-impregnated and fiber reinforced composite material

摘要

Provided is an epoxy resin composition that gives a cured product having improved elastic modulus and improved nominal strain at compressive fracture. Also provided by using the epoxy resin composition is a fiber-reinforced composite material having excellent compression strength and interlayer toughness. The epoxy resin composition contains at least the following constituent components [A], [B] and [C]. [A] A specific ortho type epoxy resin. [B] At least one component selected from the group consisting of: thermoplastic resins that are compatible with the epoxy resin [A]; and core-shell type polymers. [C] An amine curing agent.