文献类型：期刊文献

英文题名：Maintenance of highly interfacial shear strength by diblock copolymer between carbon fiber and epoxy resin in hostile environment

作者：Deng, Shuanghui[1];Ma, Wendi[1];Zhou, Xiaodong[1];Fan, Chuanjie[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2012

卷号：19

期号：8

起止页码：499

外文期刊名：COMPOSITE INTERFACES

收录：;EI(收录号：20131316144575);WOS:【SCI-EXPANDED(收录号:WOS:000315188600003)】；

基金：The authors sincerely acknowledge the support of NSFC50003003 and 51073055.

语种：英文

外文关键词：carbon fibers; polymermatrix composites; environmental resistant; interfacial shear strength

摘要：The environmental resistance properties of carbon fiber (CF), with various surface modifications, reinforcing epoxy resin composites have been studied by a microbond test. The results of coolingheating cycling between 40 and 95 degrees C indicate that the introduction of the flexible poly(n-butyl acrylate) (PnBA) blocks into the interface can effectively decrease the interfacial degradation rate, induced by interfacial thermal stress. After 50 coolingheating cycles, the interfacial shear strength between CF and epoxy resin was still as high as 32.69 +/- 2.13MPa. The results of hygrothermal treatment by immersing the composites in hot water show that assembly morphology of the diblock copolymer hydroxyl-terminated poly(n-butyl acrylate-b-glycidyl methacrylate) (OH-PnBA-b-GMA) at the interface can decrease the interfacial water absorption and thus increase the hygrothermal resistance of the composite. Besides, the length of PnBA block in the diblock copolymer influenced the interfacial properties of the composite in a hygrothermal environment.