Enhancing mechanical properties of graphene / epoxy nanocomposites using few-layer graphene produced by liquid phase exfoliation

研究成果: Conference contribution

抄録

In this study, few-layer graphenes (FLGs) were produced by new liquid phase exfoliation (LPE), exfoliation of graphite with weak acid salts. A high concentration dispersion of FLGs in low-boiling point solvents is successfully carried out, achieved by binding molecules with a dispersing function. And then graphene/epoxy nanocomposites were fabricated and tensile properties were evaluated in order to understand the effect of FLGs introduced into the resin. Graphene/epoxy nanocomposite showed improved mechanical properties. Tensile strength and fracture strain were increased by 11.5% and 55.6% compared with as-received one's. Especially, the improvement of fracture strain was outstanding, which indicated that adding FLGs had a positive impact on suppressing effect on crack propagation and improving fracture toughness of matrix resin. These beneficial results were derived from crack trapping by uniformly dispersed FLGs.

本文言語English
ホスト出版物のタイトルECCM 2018 - 18th European Conference on Composite Materials
出版社Applied Mechanics Laboratory
ISBN(電子版)9781510896932
出版ステータスPublished - 2020
イベント18th European Conference on Composite Materials, ECCM 2018 - Athens, Greece
継続期間: 2018 6 242018 6 28

出版物シリーズ

名前ECCM 2018 - 18th European Conference on Composite Materials

Conference

Conference18th European Conference on Composite Materials, ECCM 2018
CountryGreece
CityAthens
Period18/6/2418/6/28

ASJC Scopus subject areas

  • Ceramics and Composites

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