桐酐与甲基四氢苯酐复合固化环氧体系的性能  

Study on the properties of curing products of epoxy resin with methyltetrahydrophthalic anhydride and methyl maleieleostearate anhydride

作　　者：夏建陵[1] 蒋澄[2] 王定选[1] 

机构地区：[1]中国林业科学研究院林产化学工业研究所国家林业局林产化学工程重点开放性实验室,江苏南京210042 [2]南京林业大学化学工业学院,江苏南京210037

出　　处：《热固性树脂》2006年第4期5-8,共4页Thermosetting Resin

基　　金：国家自然科学基金资助项目(30271060)

摘　　要：研究了不同配比的环氧树脂618/桐酸甲酯酸酐(MeMA)/甲基四氢苯酐(MeTHPA)固化物的固化行为。测定了固化物热变形温度、拉伸强度、弯曲强度、冲击强度及体积电阻等,解析了体系固化前后的红外光谱。结果表明:混合酸酐固化剂中MeTHPA与MeMA的配比为9∶1时,与618环氧树脂固化所得的产物综合性能最佳。2 000 h人工加速老化后其力学性能未见下降。The curing behave of the epoxy resin（618）/methyltetrahydrophthalic anhydride（MeTHPA）/methyl maleieleostearate anhydride（MeMA） systems in different proportion was studied. The heat distortion temperature, peel strength, bending strength, impact strength and volume resistance were measured. FTIR spectra of the curing system between the beginning and the ending of curing process were compared. It was indicated that the colligated mechanical properties of curing system was best and the volume resistance was tested up to ∞ while ratio of MeTHPA and MEMA was 9：1 and the curing schedule was 100 ℃ ×2 h, 120 ℃ × 2 h, 140 ℃ × 5 h. The colligated mechanical properties of curing system did not decreased after 2 000 h accelerated weathering age testing.

关 键 词：环氧树脂 甲基四氢苯酐 桐酸甲酯酸酐 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]