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Enhanced thermal conductivity of carbon fibers/silanized graphene/epoxy matrix composites

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2024, 34(2), pp.647-655
  • DOI : 10.1007/s42823-023-00649-2
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : August 27, 2023
  • Accepted : December 13, 2023
  • Published : March 28, 2024

Yao Shan-Shan 1 Lee Seul-Yi 2 Li Hai-Long 1 Jin Fan-Long 1 PARK SOOJIN 3

1Department of Polymer Materials, Jilin Institute of Chemical Technology
2인하대학교 화학과
3인하대학교

Accredited

ABSTRACT

This study aimed to fabricate composites with high thermal conductivity using diglycidyl ether of bisphenol-A (DGEBA), incorporating carbon fiber cloth (CFC) and graphene as reinforcing agents. Notably, the dispersion of graphene within the DGEBA matrix was enhanced through surface modification via a silane coupling agent. The effects of CFC and graphene addition on the impact strength, thermal conductivity, and morphology of the composites were examined. The experimental results showed that the incorporation of 6 wt% CFC resulted in a substantial (16-fold) increase in impact strength. Furthermore, the introduction of 6 wt% CFCs along with 20 wt% graphene led to a remarkable enhancement in thermal conductivity to 5.7 W/(m K), which was approximately 22 and 4 times higher than the intrinsic thermal conductivities of pristine DGEBA and the CFC/DGEBA composite, respectively. The increased impact strength is ascribed to the incorporation of CFC and silane-modified graphene. Additionally, the gradual increase in thermal conductivity can be attributed to the enhanced interaction between the acidic silane-modified graphene and the basic epoxy–amine hardener within the system studied. Similar content being viewed by others

Citation status

Scopus Citation Counts (1) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-10-01)

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