脂环族共混改性双酚A环氧树脂的热-力-电综合性能研究  

Study on Comprehensive Thermo-mechanical-electric Properties of Alicyclic Blend Modified Bisphenol A Epoxy Resin

作　　者：田霖 贾伯岩 刘杰 孙翠英 吴璇[2] 张佳鑫 刘贺晨[2] TIAN Lin;JIA Boyan;LIU Jie;SUN Cuiying;WU Xuan;ZHANG Jiaxin;LIU Hechen(State Grid Hebei Electric Power Co.,Ltd.,Electric Power Research Institute,Shijiazhuang 050021,China;North China Electric Power University,Baoding 071000,China)

机构地区：[1]国网河北省电力有限公司电力科学研究院,河北石家庄050021 [2]华北电力大学,河北保定071000

出　　处：《绝缘材料》2022年第8期16-21,共6页Insulating Materials

基　　金：国网河北省电力有限公司科技项目(kj2020-057)。

摘　　要：为了提高双酚A环氧树脂(DGEBA)的综合性能,采用脂环族环氧树脂共混改性双酚A环氧树脂,并对共混体系的热、力学和电气性能进行综合分析。结果表明:当脂环族环氧树脂2021P的质量分数为10%时,共混体系的热-力-电综合性能较好,相比于纯双酚A环氧树脂,此时共混体系的玻璃化转变温度升高了3.18%,弯曲强度和拉伸强度分别提高了3.95%和4.65%,泄漏电流降低了6.03%,介质损耗因数减小了24.25%,工频电气强度提高了7.16%。In order to improve the comprehensive performance of bisphenol A epoxy resin(DGEBA), bisphenol A epoxy resin was modified by alicyclic epoxy resin through blending, and the thermal, mechanical and electrical properties of the blending system were comprehensively analyzed. The results show that when the mass fraction of alicyclic epoxy resin 2021P is 10%, the blending system have better thermal, mechanical and electrical properties.Compared with the pure bisphenol A epoxy resin, the glass transition temperature of the blending system increases by 3.18%, and the bending strength and tensile strength increase by 3.95% and 4.65%, respectively. The leakage current decreases by 6.03%, the dielectric loss factor decreases by 24.25%, and the power frequency electric strength increases by 7.16%.

关 键 词：脂环族环氧树脂 双酚A环氧树脂 共混 热学性能 力学性能 电气性能 

分 类 号：TM215[一般工业技术—材料科学与工程]