Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Fabrication and Characterization of Meta-Aramid-Based Nanocomposite Films Reinforced with Graphene

그래핀이 보강된 메타-아라미드 기반 나노복합필름의 제조와 특성분석

  • Jeon, Gil-Woo (Korea Textile Development Institute) ;
  • Jeong, Young Gyu (Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University)
  • 전길우 (한국섬유개발연구원) ;
  • 정영규 (충남대학교 유기소재.섬유시스템공학과)
  • Received : 2019.08.23
  • Accepted : 2019.09.30
  • Published : 2019.10.31
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Abstract

Herein, we report the microstructures and thermal and electrical properties of meta-aramid-based nanocomposite films containing different graphene contents of 0-10.0 wt%, which are fabricated by solution-casting of meta-aramid and graphene mixtures in N,N-dimethylacetamide and lithium chloride. The microstructure, thermal stability, and dynamic mechanical thermal and electrical properties of the nanocomposite films were investigated by considering the dispersion and loading content of the graphene sheets. The electron microscopic images and X-ray diffraction patterns revealed that the graphene sheets were well dispersed in the nanocomposite films with relatively low graphene loadings of 0.1-1.0 wt%. However, partially ordered graphene aggregates were formed in the nanocomposite films with high graphene contents of 3.0-10.0 wt%. The thermal stability and dynamic mechanical thermal properties were observed to increase with the graphene content in the nanocomposite films. The electrical percolation threshold of the nanocomposite films was attained at a critical graphene content between 1.0 wt% and 3.0 wt%. Consequently, the electrical resistivity decreased substantially from ${\sim}10^{16}{\Omega}cm$ cm of the neat meta-aramid film to ${\sim}10^2{\Omega}cm$ of the nanocomposite film with 10.0 wt% graphene loading.

Keywords

References

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