• 文献标题:   Graphene-modified carbon/epoxy nanocomposites: Electrical, thermal and mechanical properties
  • 文献类型:   Article
  • 作  者:   IMRAN KA, SHIVAKUMAR KN
  • 作者关键词:   graphene, electrical conductivity, thermal conductivity, mechanical propertie
  • 出版物名称:   JOURNAL OF COMPOSITE MATERIALS
  • ISSN:   0021-9983 EI 1530-793X
  • 通讯作者地址:   North Carolina A T State Univ
  • 被引频次:   7
  • DOI:   10.1177/0021998318780468
  • 出版年:   2019

▎ 摘  要

A primary limitation of fiber-reinforced polymer composites in aircraft applications is susceptibility to lightning because of poor electrical, thermal and electromagnetic properties. The current methods to mitigate the lightning strike in aircraft have added weight and reduced the performance. Previous graphene-modified epon 828 epoxy matrix study showed that three-roll dispersion is effective, repeatable and potentially scalable to disperse graphene in to epoxy to increase the electrical conductivity. Percolation threshold of graphene was found to be about 1.0 wt.% that enhanced electrical conductivity of epon 828 epoxy matrix from 4.3 x 10(-15) to 2.6 x 10(-6) S/m, thermal conductivity doubled and fracture toughness increased by one-third. In the present study, the same graphene/epon 828 is reinforced by carbon fabric by hand lay-up followed by compression molding. The resulting composite laminate was tested for electrical, thermal and mechanical properties and results of this nanocomposite laminates were compared with base composite laminate.