环氧树脂基片状模塑料制备及其性能研究  

Preparation and properties of epoxy resin base sheet molding compound materials

作　　者：杨朋飞 刘玉彩 张金鑫[1] 陈愚飞 冯献起 YANG Pengfei;LIU Yucai;ZHANG Jinxin;CHEN Yufei;FENG Xianqi(Beijing New Friend Insulation Materials Co.,Ltd.,Beijing 101111,China;Shougang(Qingdao)Steel Industry Co.,Ltd.,Qingdao 266042,China)

机构地区：[1]北京新福润达绝缘材料有限责任公司,北京101111 [2]首钢(青岛)钢业有限公司,山东青岛266042

出　　处：《绝缘材料》2023年第4期12-16,共5页Insulating Materials

基　　金：河北省高等教育科学技术研究重点项目(ZD2019301);福润达集团研发项目(FRD2021101)。

摘　　要：以多官能度环氧树脂为树脂基体,双氰胺为主固化剂,云母为填料,制备环氧树脂基片状模塑料(E-SMC),然后采用模压成型工艺,制备环氧模压复合材料,并对其力学性能、热力学性能和电气性能等进行系统测试和研究。结果表明:环氧模压复合材料具有高的机械强度,其中典型样品的拉伸强度、弯曲强度、垂直压缩强度和平行压缩强度分别达到了64、178、440、332 MPa。环氧模压复合材料具有较低的密度(1.69~1.76 g/cm^(3))和较高的玻璃化转变温度(T_(g)最高可达201℃),同时,具有优异的电气性能,其中典型样品的击穿电压可达到100 kV,电气强度可达到17.1 kV/mm,相比电痕化指数(CTI)为600 V。An epoxy resin-based sheet molding plastic(E-SMC)was prepared by using multi-function epoxy resin as the resin matrix,dicyandiamide as main curing agent,and mica as fillers.Then the epoxy molding composite was prepared by molding process,and its mechanical properties,thermodynamic properties,and electrical properties were systematically tested and studied.The results show that the epoxy molding composites have high mechanical strength,and the tensile strength,bending strength,vertical compression strength and parallel compression strength of typical samples can reach 64,178,440,and 332 MPa,respectively.At the same time,the epoxy molding composites have low density(1.69−1.76 g/cm^(3)),high glass transition temperature(T_(g) up to 201℃),and excellent electrical strength properties,and the breakdown voltage of typical samples is up to 100 kV,the electric strength can reach 17.1 kV/mm,the comparative tracking index(CTI)is 600 V.

关 键 词：环氧树脂 模压成型 片状模塑料 

分 类 号：TM215[一般工业技术—材料科学与工程]