3D NETWORK GRAPHENE INTERLAYER IN FIBER REINFORCED COMPOSITES: EXCELLENT INTERLAMINAR FRACTURE TOUGHNESS AND STRENGTH

被引：0
作者：
Jia, Jingjing [1 ]
Du, Xusheng [2 ]
Mai, Yiu-Wing [2 ]
Kim, Jang-Kyo [1 ]
机构：
[1] Hong Kong Univ Sci & Technol, Dept Mech & Aerosp Engn, Kowloon, Clear Water Bay, Hong Kong, Peoples R China
[2] Univ Sydney, Ctr Adv Mat Technol CAMT, Sch Aerosp Mech & Mechatron Engn J07, Sydney, NSW 2006, Australia
来源：
20TH INTERNATIONAL CONFERENCE ON COMPOSITE MATERIALS | 2015年
基金：
澳大利亚研究理事会;
关键词：
Polymer-matrix composites (PMCs); Network graphene interlayer; Fracture toughness; Interfacial strength; Fractography; MODE-I; MECHANICAL-PROPERTIES; DELAMINATION TOUGHNESS; CARBON NANOTUBES; CFRPS; PERFORMANCE;
D O I：
暂无
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
This paper reports our recent work on developing a novel CVD grown 3D network graphene interleaves in glass fiber reinforced composites (GFRPs) with excellent interlaminar fracture toughness and interlaminar shear strength. By incorporating the network graphene in the failure-prone mid-plane, the interleaved multiscale composites present a remarkable increases of 70% and 206% in mode I and II interlaminar fracture toughness, respectively, and 36% enhancement in interlaminar shear strength, when compared to those composites without the interleaves. The pertinent mechanisms responsible for the toughening effects of interleaves include crack deflection and formation of interfacial micro-cracks with significant increase in surface areas owing to the 3D hollow sphere-like graphene wrapping around the epoxy matrix as well as graphene fracture and slippage between adjacent layers. This work opens a new venue towards the development of 3D network graphene interleaved FRPs with excellent toughness and high ILSS for suppression of crack growth under delamination loading compared to its CNT and CNF counterparts.
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页数：10
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