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Synthesis and failure behavior of super-aligned carbon nanotube film wrapped graphene fibers£¬Carbon 72 (2014) 250-256. Ó°ÏìÒò×Ó£º6.16
ÕªÒª£ºSignificant progress has been made in recent years in research on wet spinning and hydrothermal synthesis of graphene fibers. In this paper, we report the relationship between the mechanical performance of graphene oxide (GO) fibers and their processing parameters in wet spinning. With super-aligned carbon nanotube (CNT) film wrapping, the specific strength and electrical conductivity of reduced GO (rGO) fibers were simultaneously enhanced by 22% and 49%, respectively. Thicker CNT filmwrapping of the rGO fiber induces a core¨Csheath structure; the resulting interfacial debonding and slippage under fiber axial loading were examined. The findings of this study provide guidelines for optimization of high-performance graphene/CNT hybrid fibers.
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