Epoxy resin composition for fiber-reinforced composite material, preform for fiber-reinforced composite material, and fiber-reinforced composite material

摘要

PROBLEM TO BE SOLVED: To provide an epoxy resin composition excellent in handleability at room temperature and impregnating into a reinforcing fiber base material and having an excellent appearance when formed into a composite material, and an epoxy resin cured product using the same. An object is to provide a preform and a fiber reinforced composite material. An epoxy resin composition containing components [A] and [B] and substantially no curing agent component, containing 70% by mass or more of a crystalline component, and having a complex viscosity η