Assembly Dependent Interfacial Property of Carbon Nanotube Fibers with Epoxy and Its Enhancement via Generalized Surface Sizing

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• 作者：Chaoshuai Lei ; Jingna Zhao ; Jingyun Zou ; Chunyang Jiang ; Min Li ; Xiaohua Zhang ; Zuoguang Zhang and Qingwen Li
• 刊名：Advanced Engineering Materials
• 出版年：2016
• 出版时间：May 2016
• 年：2016
• 卷：18
• 期：5
• 页码：839-845
• 全文大小：991K
• ISSN：1527-2648

文摘

The fiber-to-matrix interfacial shear strength (IFSS) plays a key role in building up composite structures using carbon nanotube (CNT) fibers. Originating from the assembly characteristics of CNT fiber, the IFSS strongly depends on the fiber's twisting level and densification level. Furthermore, there are rich ways to modify the fiber surface and thus enhance the IFSS, including the surface modification, the infiltration of matrix resin, and the introduction of silane coupling agent. As a new feature different from carbon fibers, these treatments either change the fiber's surface or form an interphase inside rather than around the fiber, and extend the common concept of surface sizing.