文献类型：期刊文献

中文题名：异氰酸酯硅烷处理石英布/PSA树脂复合材料的影响

英文题名：Effects of Isocyanate Coupling-Agent-Modification on Properites of QF/PSA Resin Composite

作者：扈艳红[1];梁秀华[1];杜磊[1]

机构：[1]华东理工大学材料科学与工程学院,特种功能高分子材料及相关技术教育部重点实验室,上海200237

年份：2014

卷号：44

期号：1

起止页码：62

中文期刊名：宇航材料工艺

外文期刊名：Aerospace Materials & Technology

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：国家自然科学基金项目(51073054);上海市重点学科资助(B502)

语种：中文

中文关键词：异氰酸酯;硅烷偶联剂;石英纤维;含硅芳炔树脂;复合材料界面改性

外文关键词：Isocyanate;Coupling agent;Quartz fiber;Silicon containing arylacetylene resin;Interface modification

摘要：设计并选用一种分子结构中带有异氰酸酯基的硅烷偶联剂对石英布进行了表面处理,对比了石英纤维改性对含硅芳炔树脂复合材料部分力学、介电及耐热性能等的影响。结果表明:偶联剂处理石英纤维后,偶联剂与石英纤维表面发生化学键合,明显改善石英纤维与含硅芳炔树脂的界面粘接,复合材料的层间剪切强度比未处理的提高了24.7%,弯曲强度提升了12.4%,偶联剂的加入不会降低复合材料的T g和介电性能。
A silane coupling agent containing isocyanate was designed and employed to modify the interface of quartz fiber reinforced silicon containing arylacetylene(PSA)composite.The flexural properties,dielectric proper-ties,heat-resistant properties and mechanical properties of GF/PSA composite were compared.The results showed that,the interfacial adhesion performances between the fibers and the resin are improved by the chemical bonding be-tween the coupling agent and the active groups on fibers surfaces.The interlaminar shear strength of the treated quartz fiber-PSA composite has been greatly improved by 24.7%compared with those untreated.The results revealed that the flexural strength of composite increased 12.4%after modified.The treating process on quartz fiber by IPTS had ignored effect on the dielectric properties of composite,and the insulating properties of composite are still excellent.No glass transition happened under the tested conditions,which meant the addition of IPTS wouldn't influence the heat-resistant of composite.