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Thermal Conductivity of Carbon Nanotubes-Expanded Graphite/Epoxy Resin Composite

  • Yanjie LIU Jiangyin LU Ling LI Xiaofeng WU Yanbin CUI
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  • 1. Key Laboratory of Oil & Gas Fine Chemicals, Ministry of Education, College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi, Xinjiang 830046, China; 2. State Key Lab of Multi-phase Complex System, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China

Received date: 2017-09-04

  Revised date: 2017-11-10

  Online published: 2018-06-06

Abstract

Multi-walled carbon nanotubes (MWCNTs) and expanded graphite were added into epoxy resin to improve the thermal conductivity. The results indicated that the maximum thermal conductivity of composite was 0.3448 W/(m?K) by adding 0.5wt% MWCNTs, which was improved by 30% than epoxy resin. When 0.75wt% MWCNTs-COOH was added into epoxy resin, the maximum thermal conductivity of composite was 0.3813 W/(m?K), which was improved by 40% than epoxy resin. The thermal conductivity of epoxy resin could reach up to 0.4039 W/(m?K) by adding hybrid filler (MWCNTs-COOH and expanded graphite). A thermally conductive network was formed in epoxy resin when MWCNTs-COOH and expanded graphite were added into epoxy resin and the thermal conductivity of polymer could be further improved.

Cite this article

Yanjie LIU Jiangyin LU Ling LI Xiaofeng WU Yanbin CUI . Thermal Conductivity of Carbon Nanotubes-Expanded Graphite/Epoxy Resin Composite[J]. The Chinese Journal of Process Engineering, 2018 , 18(3) : 563 -569 . DOI: 10.12034/j.issn.1009-606X.217325

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