高温高压湿热处理对环氧树脂复合材料电性能的影响  

Effect of Hygrothermal Treatment with High Temperature and Pressure on Electrical Properties in Epoxy Composite

作　　者：徐任信[1] 崔昌盛 王钧[1] 王翔[1] 杨小利[1] 

机构地区：[1]武汉理工大学材料科学与工程学院,武汉430070 [2]中船重工第七一二研究所,430064

出　　处：《纤维复合材料》2008年第1期32-34,共3页Fiber Composites

基　　金：湖北省自然科学基金(2007ABA028)

摘　　要：本文研究了多官能度环氧树脂(WHUT-170)、TDE-85和E-51环氧树脂/玻璃纤维复合材料经高温高压湿热处理后的电学性能。结果表明:WHUT-170复合材料具有高的湿热绝缘性能,样品在175℃、140MPa的水压下处理2h后,复合材料的体积和表面电阻率分别为1.1×1010Ω.cm和5.0×108Ω,均比TDE-85和E-51树脂复合材料的高出1个数量级;WHUT-170复合材料的介电常数和介电损耗明显低于其它体系。The electrical properties of multi- functional epoxy （WHUT- 170）,TDE- 85 and E- 51 epoxy/fiberglass composites under the hygro thermal enviroment with high temperature and pressure were studied in this artiele. The results show that WHUT- 170 composite is provided with high hygro thermal insulation properties. The bulk and surface resistivities of the WHUT- 170 composite are 1.1×10^10Ω·cm and 5.0 ×10^8Ω, respectively, after the sample treated in the enviroment of 175℃ and 140MPa for 2h, and higher than those of TDE - 85 and E- 51 composites by 1 order of magnitude. The dielectic constant and loss of WHUT - 170 composite are obviously lower than those of the others.

关 键 词：环氧树脂 复合材料 湿热性能 电性能 

分 类 号：TQ327.1[化学工程—合成树脂塑料工业]