A fiber reinforced composite structure having a glass transition temperature greater than 150°C is comprised of:
a) reinforcing fiber and
b) a curable epoxy resin composition comprising
(i) one or more epoxides having more than one epoxide group per molecule, of which epoxides at least 10 percent by weight is a
9,9-bis[4-(2,3-epoxypropoxy)phenyl]fluorene, all of the fluorene epoxy present being free of ortho substitution;
(ii) an effective amount of one or more epoxy curing agents.
                            玻璃化温度高于 150°C 的纤维增强复合材料结构由以下部分组成:
a) 增强纤维和
b) 可固化的环氧
树脂组合物,包括
(i) 一种或多种
环氧化物,每个分子具有一个以上的环氧基团,其中至少 10%(按重量计)的
环氧化物为
9,9-双[4-(2,3-环氧丙氧基)苯基]
芴,所有存在的环氧
芴均不含正交取代基;
(ii) 有效量的一种或多种环氧固化剂。