表面改性处理对EP/BN复合材料导热及力学性能的影响  

Effects of Surface Modification on Thermal and Mechanical Properties of EP/BN Composites

作　　者：马振宁[1] 王逊[1] 颜婷婷[1] 喜冬阳 汪青杰[1] 钟博[3] 王培侨 Ma Zhenning1,Wang Xun1,Yan Tingting1,Xi Dongyang2,Wang Qingjie1,Zhong Bo3,Wang Peiqiao3(1.College of Science,Shenyang Jian zhu University,Shenyang 110168; 2.School of Materials Science and Engineering,Shenyand Jian zhu University,Shenyand 110168; 3.School of Meterials Science and Engineering,Harbin Institute of Technology（Weihai）,Weihai,264209)

机构地区：[1]沈阳建筑大学理学院,辽宁沈阳110168 [2]沈阳建筑大学材料科学与工程学院,辽宁沈阳110168 [3]哈尔滨工业大学(威海)材料科学与工程学院,山东威海264209

出　　处：《塑料科技》2018年第4期49-53,共5页Plastics Science and Technology

基　　金：国家自然科学基金(11604224);辽宁省教育厅基金(LJZ2016031,LJZ2016030);沈阳建筑大学涵育项目(XKHY2-105,XKHY2-101)

摘　　要：采用硅烷偶联剂KH-550对氮化硼（BN）进行表面改性,并对改性的BN进行了X射线光电子能谱分析（XPS）,考察了BN表面改性对EP/BN绝缘导热复合材料导热性能和力学性能的影响。结果表明：添加适量的偶联剂能够提高EP/BN复合材料的热导率,但是随着添加偶联剂用量的增加,复合材料的导热性能逐渐下降;另外,由表面改性BN制备的复合材料,其拉伸强度明显低于其他EP/BN复合材料。Boron nitride （BN） was modified by silane coupling agent KH-550, then characterized by X-ray photoelectron spectroscopy （XPS） analysis. The thermal conductivity and mechanical properties of the insulating thermal conductive composites, which obtained by adding surface modified BN and unmodified BN to epoxy resin （EP）, were investigated respectively. The results show that the thermal conductivity of the composites increases by adding certain amount of silane coupling agent, but the thermal conductivity of composites gradually reduces with the increasing content of silane coupling agent. And the tensile strength of the composites containing surface modified BN, is significantly lower than that of the other EP/BN composites.

关 键 词：绝缘导热复合材料 氮化硼 表面改性 热导率 拉伸强度 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]