文献类型：期刊文献

中文题名：新型硅烷偶联剂对石英纤维/含硅芳炔复合材料界面增强增韧改性

英文题名：REINFORCING AND TOUGHENING OF QUARTZ FIBER( QF) / SILICON-CONTAINING ARYLACETYLENE( PSA) COMPOSITES WITH NEW SILANE COUPLING AGENT

作者：杨海荟[1];扈艳红[1];杜磊[1];顾渊博[1];张芳芳

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：2016

期号：8

起止页码：13

中文期刊名：玻璃钢／复合材料

外文期刊名：Fiber Reinforced Plastics/Composites

收录：CSTPCD;;北大核心:【北大核心2014】；CSCD:【CSCD_E2015_2016】；

基金：特种功能高分子材料及相关技术教育部重点实验室(B类)开放基金;上海市重点学科项目(B502)

语种：中文

中文关键词：石英纤维;含硅芳炔;端炔硅烷偶联剂;复合材料界面;增强增韧

外文关键词：quartz fiber; PSA; terminalalkynes silane coupling agent; composite interface; reinforcing and toughening

摘要：采用一种自主设计制备的含有端炔、醚键和酰亚胺环的硅烷偶联剂(AAS),对石英纤维/含硅芳炔复合材料进行增强、增韧改性。采用DSC、FT-IR以及TGA分析表征了AAS参与PSA的交联固化,与PSA形成良好的化学作用;XPS测试表明AAS与QF产生化学键合;SEM分析表明,AAS的使用改善了QF与PSA的粘结性能,提高了界面结合强度,常温条件下,复合材料的层间剪切强度(ILSS)和弯曲强度相比于未改性的分别提高了50.6%和43.0%,在250℃时,ILSS、弯曲强度的保留率分别为66.0%和84.2%。经过AAS改性后,复合材料的耐冲击性能也得到了提高,常温下QF/PSA的冲击强度较未改性时提升了20.4%。
A novel silane coupling agent AAS,designed and synthesized by our team,which contains terminal alkyne,ether linkage,and imide rings was employed to reinforce and toughen quartz fiber（ QF） / silicon-containing arylacetylene（ PSA） composites. The curing process of AAS and PSA was analyzed by FT-IR,DSC and TGA. XPS analysis indicates that chemical bondings are formed between AAS and QF. The interfacial properties of QF / PSA are improved after AAS treatment. The date of ILSS and flexual strength increased by 50. 6% and 43. 0%,respectively,compared with those of unmodified at room temperature,and the retention ratios of mechanical strengths are 66.0%and 84. 2% when heated up to 250 ℃. The impact resistance of the composites treated by coupling agent was also improved. At room temperature,the impact strength of the material is improved by 20. 4%.