• 文献标题:   Mechanics of reinforcement in a hybrid graphene and continuous glass fibre reinforced thermoplastic
  • 文献类型:   Article
  • 作  者:   LIU MF, LIN KL, YAO XD, VALLES C, BISSETT MA, YOUNG RJ, KINLOCH IA
  • 作者关键词:   gfrp, graphene nanoplatelet, ppmah, polypropylene, micromechanic
  • 出版物名称:   COMPOSITES SCIENCE TECHNOLOGY
  • ISSN:   0266-3538 EI 1879-1050
  • 通讯作者地址:  
  • 被引频次:   0
  • DOI:   10.1016/j.compscitech.2023.110001
  • 出版年:   2023

▎ 摘  要

Hybrid nanomaterial-fibre-reinforced polymer composites show considerable promise but are often limited by the poor dispersion of the nanofillers, with filtering by the fibre weave being a common issue. Herein, a hybrid continuous glass fibre reinforced polymer (GFRP) was prepared based upon a polypropylene matrix, woven E -glass fibre (GF) and graphene nanoplatelets (GNP). The GNP flakes were melt-mixed with a polypropylene-graft- maleic anhydride (PP-MAH) compatibiliser and then melt-coated onto the GF mats, followed by layer-by-layer assembly using polypropylene films and coated fibre mats in a hot press. It was found that the stiffness and strength of the GFRP were increased by up to-3 GPa (25%) and-120 MPa (95%), respectively, by the addition of up to only -1.7 vol% of the GNP, to the composite. The experimental results enable us to extend our previous theory of mechanics of reinforcement by 2D materials to FRP. In-situ Raman band shift measurements on the flakes close to the glass fibres under strain found that the effective modulus of the flake is-130 GPa, indicating that a higher reinforcing efficiency of graphene was obtained in the FRP than in neat polymers due to improved local reinforcement effect of the matrix in the FRP.