| abstract |
The present invention provides an epoxy resin composition containing an epoxy resin (A) having a viscosity at 25° C. of 1000 mPa·s or less, an epoxy resin (B) having at least two epoxy groups that is other than the epoxy resin (A), a core-shell rubber particle (C), and an amine curing agent (D). The content of the epoxy resin (A) is in the range of 0.5 to 15 mass % relative to the total mass of (A), (B), (C), and (D), and the content of the core-shell rubber particle (C) is in the range of 1 to 10 mass % relative to the total mass of (A), (B), (C), and (D). This epoxy resin composition has low viscosity and good impregnation property into fibers and is capable of forming into a cured product having high heat resistance, high mechanical properties, and high water absorption resistance. |