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Synergistic effect of nano‐SiO 2 and small‐sized graphene oxide on carbon fiber/epoxy composite
Author(s) -
Chu Caixia,
Ge Heyi,
Zhang Kaili,
Gu Nianliang,
Liu Shanshan,
Jin Chaosheng
Publication year - 2019
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.25326
Subject(s) - materials science , epoxy , composite material , graphene , composite number , oxide , layer (electronics) , nano , carbon fibers , fiber , nanotechnology , metallurgy
The poor interface of carbon fiber (CF) reinforced composites has long been one that researchers want to facilitate. A hierarchical structure of nano‐SiO 2 and small‐sized graphene oxide (sGO) on CF was constructed by a layer‐by‐layer method. The electrochemically treated CF was evenly coated with sGO sheets as a medium layer, which made nano‐SiO 2 uniformly spread over CF by electrostatic adsorption. The hierarchical structure could provide the synergistic reinforcement on the mechanical properties of CF composite by improving interface adhesion, mechanical interlocking, and chemical bonding. The interlaminar shear strength value of SiO 2 ‐sGO‐CF/epoxy composite reached 71.1 MPa, which was increased by 33.45% compared with the electrochemical etching CF/epoxy composite. The results show that the sizing of sGO and nano‐SiO 2 plays a positive synergistic effect by hierarchical reinforcement.