The present invention relates to an epoxy resin composition comprising at least (A) an epoxy resin having a cycloalkane ring or cyclohexene ring but having neither aromatic ring nor aminic nitrogen atom, (B) a carboxylic anhydride having no aromatic ring, and (C) an ultraviolet absorbent, wherein a content of component (A) is from 70 to 100 percents by weight based on the total weight of epoxy resins, and a content of component (B) is from 70 to 100 percents by weight based on the total weight of carboxylic anhydrides.
By this constitution, the present invention can provide an epoxy resin composition whose cured product excels in mechanical properties and weatherability, and a fiber reinforced composite material having excellent mechanical properties and weatherability.
本发明涉及一种环氧
树脂组合物,至少包括(A)具有环烷环或
环己烯环但不具有芳香环或
氨基氮原子的环氧
树脂,(B)不具有芳香环的
羧酸酐,以及(C)
紫外线吸收剂、(C)
紫外线吸收剂,其中组分(A)的含量为环氧
树脂总重量的 70%至 100%,组分 (B)的含量为
羧酸酐总重量的 70%至 100%。
通过这种结构,本发明可以提供一种环氧
树脂组合物,其固化产物具有优异的机械性能和耐候性,还可以提供一种具有优异机械性能和耐候性的纤维增强复合材料。