| abstract |
The present invention provides a thermosetting epoxy resin composition. By using this thermosetting epoxy resin composition, a hardened | cured material which has high heat resistance, low water absorption, and high strength can be obtained. This thermosetting epoxy resin composition includes (A) a liquid epoxy resin, (B) an aromatic amine hardener, and (C) a cyclic carbodiimide compound, wherein (B) an aromatic amine The compounding amount of the hardener is an amount equivalent to 0.7 to 1.5 equivalents of all the amino groups in the (B) aromatic amine-based hardener relative to (1) all epoxy groups in the liquid epoxy resin, and ( A) A total of 100 parts by mass of the liquid epoxy resin and (B) the aromatic amine hardener, and (C) the cyclic carbodiimide compound is 2 to 50 parts by mass. |