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Improving the interlaminar shear strength and thermal conductivity of carbon fiber/epoxy laminates by utilizing the graphene‐coated carbon fiber
Author(s) -
Cheng Xiuyan,
Zhang Jinmeng,
Wang Haopeng,
Wu Lixin,
Sun Qingfu
Publication year - 2019
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.47061
Subject(s) - materials science , composite material , epoxy , thermal conductivity , graphene , shear strength (soil) , scanning electron microscope , carbon fibers , conductivity , fiber , reinforced carbon–carbon , composite number , nanotechnology , chemistry , environmental science , soil science , soil water
The poor interlaminar properties restrict the application of carbon fiber reinforced polymer (CFRP) composites. In this work, a novel method for fabricating a graded interface structure is developed to improve the through‐thickness thermal conductivity of CFRP composites. High‐strength graphene nano‐plates (GnP) and phenolic resin (PF) were selected to deposit on the surface of carbon fiber to design a novel CF/Epoxy laminates, where a simultaneous improvement of interlaminar shear strength (ILSS) and through‐thickness thermal conductivity was observed. With addition of 1 wt % of GnP‐PF in CF, 37.04% increase of the ILSS, and 16.67% enhancement of thermal conductivity compared to the original CFRP. The mechanism for improvement of both ILSS and thermal conductivity was studied by scanning electron microscopy and nano‐indentation, where a better interface formed by GnP‐PF has been clearly observed. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 47061.