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采用环氧树脂E-51,稀释剂1,4-丁二醇二缩水甘油醚(622)和四氢邻苯二甲酸二缩水甘油酯(711),固化剂3-氨甲基-3,5,5-三甲基环己基胺(固化剂A)和α-(2-氨甲基乙基)-ω-(2-氨甲基乙氧基)聚[氧(甲基-1,2-亚乙基)](固化剂B)制备了4种环氧体系,通过粘度和力学性能测试及示差扫描量热分析对其加工性能、固化特性、耐热性及拉伸性能进行了研究。结果表明,当E-51,711,固化剂A和B的质量配比为95∶5∶12.05∶17.10时,环氧体系综合性能最佳,30℃下初始粘度为0.4 Pa.s,适用期为40 min,固化后的拉伸强度为70 MPa,断裂伸长率为6.1%,可用于湿法缠绕成型或液体模塑成型。
Epoxy resin E-51, diluent 1,4-butanediol diglycidyl ether (622) and diglycidyl tetrahydrophthalate (711), curing agent 3-aminomethyl-3,5 , 5-trimethylcyclohexylamine (curing agent A) and α- (2-aminomethylethyl) -ω- (2-aminomethylethoxy) poly [oxy (methyl- Ethylene)] (curing agent B) were prepared four kinds of epoxy system, through the viscosity and mechanical properties of the test and differential scanning calorimetry analysis of its processing properties, curing properties, heat resistance and tensile properties were studied. The results showed that when the mass ratio of E-51,711 and curing agent A and B was 95:5:12.05:17.10, the epoxy system had the best comprehensive properties, the initial viscosity at 30 ℃ was 0.4 Pa.s and the pot life was 40 min, the tensile strength after curing is 70 MPa and the elongation at break is 6.1%, which can be used for wet winding or liquid molding.