Mechanical and electrical properties of carbon fiber composites with incorporation of graphene nanoplateletsat the fiber-matrix interphase
Mechanical and electrical properties of carbon fiber composites with incorporation of graphene nanoplateletsat the fiber-matrix interphase
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DOI：
10.1016/j.compositesb.2014.10.014
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发表时间：
2015-02-01
影响因子：
13.1
通讯作者：
Yu, Junrong
中科院分区：
文献类型：
--
作者：
Qin, Wenzhen;Vautard, Frederic;Yu, Junrong
在这项研究中，碳纤维（CF）涂有石墨烯纳米片（GNP），使用一个强大的和连续的涂层过程。将CF直接浸入稳定的GNP悬浮液中，并优化涂覆条件以获得高密度的均匀且分散良好的GNP。采用预浸料和铺层法制备了GNP包覆碳纤维/环氧树脂复合材料，并对复合材料的力学性能和导电性能进行了测试。GNP涂层的碳纤维/环氧树脂复合材料的900度弯曲强度、0度弯曲强度和层间剪切强度分别比未涂层的碳纤维/环氧树脂复合材料提高了52%、7%和19%。同时，将GNP结合在CF/环氧树脂界面中，通过在纤维之间创建导电路径，显著改善了通过厚度方向的导电性。(C)2014爱思唯尔有限公司版权所有。
In this study, carbon fibers (CFs) were coated with graphene nanoplatelets (GnP), using a robust and continuous coating process. CFs were directly immersed in a stable GnP suspension and the coating conditions were optimized in order to obtain a high density of homogeneously and well-dispersed GnP. GnP coated CFs/epoxy composites were manufactured by a prepreg and lay-up method, and the mechanical properties and electrical conductivity of the composites were assessed. The GnP coated CFs/epoxy composites showed 52%, 7%, and 19% of increase in comparison with non-coated CFs/epoxy composites, for 900 flexural strength, 0 degrees flexural strength and interlaminar shear strength, respectively. Meanwhile, incorporating GnP in the CF/epoxy interphase significantly improved the electrical conductivity through the thickness direction by creating a conductive path between the fibers. (C) 2014 Elsevier Ltd. All rights reserved.