Interlayer growth of SiC nanowires in graphene aerogel for thermal conductivity enhancement of epoxy resin and its mechanism

Author:

Zhao Xintong1,Wu Wei12ORCID,Drummer Dietmar3ORCID,Wang Yi1,Liu Chao1,Li Shuo1,Lu Zijian1

Affiliation:

1. Sino‐German Joint Research Center of Advanced Materials, School of Materials Science and Engineering East China University of Science and Technology Shanghai PR China

2. Shenzhen Research Institute of ECUST Shenzhen PR China

3. Institute of Polymer Technology, Friedrich‐Alexander‐University Erlangen‐Nuremberg Erlangen Germany

Abstract

AbstractThe chemical reduction method is a simple and popular way to contrast the graphene network to improve the polymer matrix's thermal conductivity. And hybrid thermal conductive fillers composed of two or more mixed fillers through chemical synthesis usually have better thermal conductivity because of the synergistic effort. In this work, silicon carbide nanowires (SiC NWs) in graphene aerogels are synthesized with the chemical vapor deposition method, acting as bridges for phonon transmission between adjacent graphene sheets. The RGO/SiC NWs aerogel‐endowed EP composites have a high thermal conductivity of 3.79 W/mK at a filler loading of 5.5 wt%, and 4.23 W/mK at a filler loading of 7.5 wt%, which is 1895% and 2126% higher than pure EP resin, respectively. Finite element analysis (FEA) is utilized to analyze the heat conduction mechanism of composites at last.

Funder

Deutsche Forschungsgemeinschaft

Publisher

Wiley

Subject

Materials Chemistry,Polymers and Plastics,General Chemistry,Ceramics and Composites

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