EPOXY RESIN COMPOSITION AND CURED PRODUCT THEREOF, PREPREG, AND FIBER-REINFORCED COMPOSITE MATERIAL

摘要

The purpose of the present invention is to provide: an epoxy resin composition, of which the property and viscosity can be controlled easily, and which can be cured at a low temperature within a short time and enables the formation of a cured article having excellent mechanical properties including high tensile elongation at break and also having high heat resistance; and a cured product of the epoxy resin composition (i.e., a resin cured article). The epoxy resin composition according to the present invention is characterized by comprising (A) an alicyclic epoxy compound, (B) at least one compound selected from the group consisting of (B1) a lactone adduct compound having a hydroxy group and (B2) a polycarbonate polyol, and (C) a phenolic resin. It is preferred that the epoxy resin composition according to the present invention additionally contains (D) a curing catalyst.