【作者】 邓双辉； 周晓东； 范传杰； 张良顺； 林群芳；

【Author】 DENG Shuanghui~1,ZHOU Xiaodong~(1*),FAN Chuanjie~1,ZHANG Liangshun~2,LIN Qunfang~2 (1.State Key Laboratory of Chemical Engineering;2.Material Science and Engineering Insititute, East China University of Science and Technology,Shanghai 200237,China)

【机构】 华东理工大化学工程联合国家重点实验室； 华东理工大学材料科学与工程学院；

【摘要】 <正>实验研究证明,接枝于纤维表面的嵌段共聚物在与树脂基体的复合过程中,嵌段共聚物中与基体相容性不好的嵌段沉积在纤维表面,形成界面柔性层,使界面能够均匀地传递载荷、减小应力集中、松弛界面残余应力、提高复合材料的韧性;而另一嵌段则与树脂基体分更多还原

【Abstract】 In this work,we performed the polymer self-consistent-field theory(SCFT)to investigate the self-assembly behavior and interfacial properties of grafted AB diblock copolymer in homopolymer melt,and we also compared the theoretical approaches with our previous experimental findings.The results showed that as the grafting density increased,the assembly morphology transformed from a hemispherical structure into semicylinder-like and sandwich-like lamellar morphologies.The interfacial properties including the effective thickness of the grafted block and the interfacial width had relations with the key parameter,such as Flory-Huggins interaction parameters,volume fraction,chain-length and chain-grafting density.For specific parameter regions,our results corroborated other theoretical approaches and previous experimental findings.更多还原