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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/045/0116

    • Keywords

       

      Nanocarbon coated; glass fibre; composite materials; electromagnetic shielding; electrical conductivity.

    • Abstract

       

      Fibre-reinforced composites are significant materials for the construction of high-end aircraft; however, their complex manufactural process and high cost hinder their large-scale applications. Herein, a newly phenolic-based composite reinforced by nanocarbon-coated glass fibre (NCGF) prepared by pyrolysis of polyethylene was proposed to meet this challenge. The results show that the tensile strength and electrical conductivity of the composites increase withthe increase of NCGF content, approaching 40.06 MPa and 1.63 ${\times}$ 10$^{–6}$ S cm$^{–1}$ with the NCGF usage of 20 wt%. The electromagnetic shielding effectiveness (EMI SE) of the as-prepared composite is up to 21.82 dB at 20 wt% X-band(8.2–12.4 GHz). The relationship between total EMI SE (SE$_T$), surface reflection (SE$_R$) and absorption of electromagnetic wave (SE$_A$) of the as-prepared composite is systematically analysed. It is found that SE$_A$ is the main factor for EMI shielding. In addition, the increase of the imaginary part of the permittivity and the dielectric loss of the composite can also make the composite obtain a better electromagnetic shielding effect. In summary, our work introduced a facile paradigm for the production of low-cost fibre-reinforced composites as EMI shielding materials.

    • Author Affiliations

       

      JINGCHAO YU1 XIAODONG GAO1 2 WEIMIN YANG1 3 4 ZHENGHE ZHANG1 TIANYANG SHENG1 JIAN XIAO1 LISHENG CHENG1 3 JING TAN1 3

      1. College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
      2. China Nuclear Power Engineering Co., Ltd., Beijing 100840, China
      3. State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
      4. Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China

    • Dates

       
      Published
      27 June 2022
      Manuscript received
      21 October 2021
      Accepted
      28 February 2022
      Final version published online
      27 June 2022

  • Bulletin of Materials Science | News

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    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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