摘要 |
<P>PROBLEM TO BE SOLVED: To provide an epoxy resin composition that has a low viscosity, a high Tg and a high elastic modulus and yet exhibits excellent fracture toughness, and to provide, by applying such an epoxy resin for a fiber-reinforced composite material, a fiber-reinforced composite material that is excellent in thermal properties, compression strengths, impact resistance, fatigue resistance and perforated plate tensile strengths and is optimal for aircraft members and the like. Ž<P>SOLUTION: The epoxy resin composition comprises at least a constituent [A]: a specific bifunctional epoxy resin and a constituent [B]: a specific aromatic diamine hardening agent, where the total number of carbon atoms in substituting groups of the constituent [B] is at least 6. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
|