| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an epoxy resin composition forming a resin cured product having both excellent elastic modulus and toughness, having low viscosity and excellent in impregnating ability into reinforced fibers, and provide a prepreg and a fiber reinforced composite material using the epoxy resin composition. <P>SOLUTION: The epoxy resin composition comprises following components [A]-[D], wherein the epoxy resins [A]-[C] satisfy following blending rates based on 100 pts.mass of the whole epoxy resin; [A] a bisphenol type epoxy resin having ≥90°C softening temperature: 20-50 pts.mass, [B] a tri- or more functional amine type epoxy resin: 30-50 pts.mass, [C] a bisphenol F type epoxy resin having ≤450 number-average molecular weight: 10-40 pts.mass, and [D] a curing agent. <P>COPYRIGHT: (C)2013,JPO&INPIT |
