超支化环氧树脂的合成及其改性环氧树脂导热胶性能研究  

Synthesis of Hyperbranched Epoxy Resin and Properties of Modified Heat Conductive Epoxy Adhesive

作　　者：付继芳[1] 施利毅[1] 钟庆东[1] 陈立亚[1] 陈怡[1] 丁郭君[1] 

机构地区：[1]上海大学纳米科学与技术研究中心,上海200444

出　　处：《绝缘材料》2012年第1期1-4,11,共5页Insulating Materials

基　　金：上海市教育委员会重点学科项目(J50102);教育部科学技术研究重点项目(208182);上海大学创新基金(A.10-0407-11-002);上海市第三期重点学科(S30107)

摘　　要：以偏苯三酸酐(TMA)和二缩三乙二醇(TEG)为原料合成了端基为两个羧基、一个羟基的AB2型单体,用TMA为核,采用一步法制备了新一代超支化聚酯,然后在相转移催化剂下与环氧氯丙烷反应进行端基环氧功能化制备了超支化环氧树脂HTTE-1。利用HTTE-1与Al2O3纳米粒子复合改性环氧树脂制备纳米复合材料,并对其性能进行了研究。结果表明:所得三元纳米复合材料体系的韧性优于单独填充纳米粒子体系,热导率提高。Using trimellitic anhydride（TMA） and triethylene glycol（TEG） as raw materials, An AB2 mono- mer with two carboxyl groups and one hydroxyl group as end groups was synthesized. Using TMA as nucleus,low viscosity hyperbranched polyester was prepared, and then hyperbranched epoxy resin（HTTE-1） was synthesized by reacting with epichiorohydrin under phase transfer catalysis conditions. A nano-com- posite was prepared from epoxy resin modified by HTTE-1 and nano-A1203, and the properties of the hancomposite were studied. The results show that the impact strength and thermal conductivity of the nano-A1203/HTTE-1/epoxy nano-composite were higher than that of the nano-AhO3/epoxy nano-composite.

关 键 词：超支化环氧树脂 增韧 热导率 

分 类 号：TM215[一般工业技术—材料科学与工程]