文献类型：期刊文献

英文题名：Synthesis and application of a novel dicyanide-containing silane coupling agent

作者：Cheng, Bin[1]; Hu, Yanhong[1]; Deng, Shifeng[1]; Cui, Fangxu[1]; Hu, Junjie[1]

机构：[1] Key Laboratory of Specially Functional Polymeric Materials and Related Technology, Ministry of Education, School of Materials and Engineering, East China University of Science and Technology, 200237, China

年份：2018

卷号：397

期号：1

外文期刊名：IOP Conference Series: Materials Science and Engineering

收录：EI(收录号：20183805838433)

语种：英文

外文关键词：Coupling agents - Surface roughness - Homopolymerization - Curing - Cyanides

摘要：Silicon-containing arylacetylene (PSA) is a novel resin with excellent heat resistant properties and it has potential application in the field of aerospace. However, Quartz fiber(QF)/PSA composites has poor interfacial adhesion, and commonly used silane coupling agents decompose at high temperatures. In this paper, a novel silane coupling agent DCA was synthesized through the reaction of 2, 3-diamino-2-butenedioleonitrile, 2-keto-glutaric acid, 3-aminophenylacetylene and propyltriethoxysilane. In QF/PSA composites, the surface roughness and surface energy of QF had improved after modified by DCA. Spectral and thermal studies gave evidence for both homopolymerization of propargylic groups and nitrile groups during thermal curing, which indicated that DCA could co-cure with propargylic groups of PSA. After the cylization reactions of nitrile groups, a strong interfacial layer had been formed which could remarkably improve the thermal stability of composites. After modification, ILSS can reach 27.6MPa at room temperature, the retention rate was 54.7% at 500°C. ? Published under licence by IOP Publishing Ltd.