【作者】 赵婧婧； 邓双辉； 周晓东； 林群芳；

【Author】 ZHAO JingJing~1,DENG Shuanghui~1,ZHOU Xiaodong~1,LIN Qunfang~2 (1.State Key Laboratory of Chemical Engineering,East China University of Science and Technology;2.School of Material Science and Engineering,East China University of Science and T echnology,Shang-hai 200237)

【机构】 华东理工大学化学工程联合国家重点实验室； 华东理工大学材料学院；

【摘要】 <正>细观力学分析认为,在复合材料界面引入柔性层,能使界面均匀地传递载荷、减少应力集中、可有效松弛热应力,但是,柔性层的引入可能造成体系界面剪切强度的下降,从而给复合材料的性能带来不利的影响。本文通过在碳纤维表面接枝一种可以进行紫外光交联的嵌段共聚物,碳纤维在与树脂复更多还原

【Abstract】 A well-defined copolymer(poly(n-butylacrylate)-co-poly(2-Hydroxyethyl acrylate)-b-poly(glycidyl methacrylate)((PnBA-co-PHEA)-b-PGMA)was synthesized by atom transfer radical polymerization(ATRP)and then introduced into the interface of carbon fiber and epoxy resin.After that prepare poly(2-methacryloyloxyethyl acrylate)(PMEA)on the interface by a chemical reaction with PHEA.Under the influence of UV light,Interpenetrating Polymer Network (IPN)was established by cross-linking the methacrylate moieties in the interface.The interfacial shear strength(IFSS)value of the resulting composite increases rapidly from 29.8 MPa to 49.3 MPa,in which the formation of IPN by UV cross-linking increased 13.3MPa.更多还原