The present invention provides a resin composition for a fiber-reinforced composite material, which has excellent fluidity and impregnation into a fiber base material and which produces a cured product having excellent heat resistance. A resin composition for a fiber-reinforced composite material contains, as essential components, a poly(glycidyloxyaryl) compound (A), a polymerizable monomer (B) which is an unsaturated carboxylic acid or an anhydride thereof and has a molecular weight of 160 or less, an aromatic vinyl compound or a (meth)acrylate (C), and a radical polymerization initiator (D), wherein an equivalent ratio [glycidyloxy group/acid group] of a glycidyloxy group in the component (A) to an acid group in the component (B) is 1/1 to 1/0.48, and a molar ratio [(B)/(C)] of the component (B) to the component (C) is in the range of 1/0.55 to 1/2.
本发明提供了一种用于纤维增强复合材料的
树脂组合物,该组合物具有优异的流动性和对纤维基材的浸渍性,并能生产出具有优异耐热性的固化产品。一种用于纤维增强复合材料的
树脂组合物含有以下基本成分:聚
缩水甘油醚化合物 (A)、可聚合单体(B),后者是一种不饱和
羧酸或其酸酐,分子量在 160 或 160 以下、芳香族
乙烯基化合物或(甲基)
丙烯酸酯(C),以及自由基聚合
引发剂(D),其中组分(A)中的
缩水甘油氧基与组分(B)中的酸基的当量比[
缩水甘油氧基/酸基]为 1/1 至 1/0.48,组分(B)与组分(C)的摩尔比[(B)/(C)]在 1/0.55 至 1/2 之间。