Issue 17, 2012
From the journal:

Journal of Materials Chemistry

Novel conductive epoxy composites composed of 2-D chemically reduced graphene and 1-D silver nanowire hybrid fillers†

Van Hoang Luan,a   Huynh Ngoc Tien,a   Tran Viet Cuong,a   Byung-Seon Kong,b   Jin Suk Chung,a   Eui Jung Kima  and  Seung Hyun Hur*a  

* Corresponding authors

a School of Chemical Engineering and Bioengineering, University of Ulsan, Daehak-ro 102, Nam-gu, Ulsan 680-749, South Korea
E-mail: shhur@ulsan.ac.kr

b Advanced Energy Materials Team, KCC Central Research Institute, Mabuk, Yongin-si, Kyunggi-do 446-912, South Korea

Abstract

In this study, 1-D Ag nanowires (NWs), 2-D chemically reduced graphene (CRG), and hybrid CRG–Ag NW fillers were investigated for use as conductive epoxy composites. By combining the 2-D CRG with 1-D Ag NWs, the percolation limit of the Ag NWs decreased from 30 wt% to 10 wt% and the electrical conductivity was dramatically enhanced because of the decreased tunneling resistance between the Ag NWs due to the thin 2-D conductive CRGs. Their thermal and mechanical properties were also improved due to the chemical crosslinking effects between CRGs and the hardener in the epoxy matrix as well as the physical crosslinking effects between nano-structures and polymer chains. The break strength of the CRG/Ag-NW/epoxy composite was 50% higher than that of the pure epoxy resin.

Graphical abstract: Novel conductive epoxy composites composed of 2-D chemically reduced graphene and 1-D silver nanowire hybrid fillers

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Article information

DOI
https://doi.org/10.1039/C2JM16910J
Article type
Paper
Submitted
30 Dec 2011
Accepted
16 Feb 2012
First published
20 Mar 2012

J. Mater. Chem., 2012,22, 8649-8653

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Novel conductive epoxy composites composed of 2-D chemically reduced graphene and 1-D silver nanowire hybrid fillers

V. H. Luan, H. N. Tien, T. V. Cuong, B. Kong, J. S. Chung, E. J. Kim and S. H. Hur, J. Mater. Chem., 2012, 22, 8649 DOI: 10.1039/C2JM16910J

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