A three-dimensional graphene foam and poly dimethyl siloxane (GF/PDMS) composite was fabricated by infiltrating PDMS into 3D GF. It was synthesized by chemical vapor deposition (CVD) with nickel foam as a template. Research of the strain effect on electrical conductivity of three-dimensional grapheme composites indicates that the relative change rate of resistance of the composites increases with the increaseof bending curvature under bending stress. The relative change rate increases quickly with a small bending curvature while slowly with a big curvature. Under tensile strain, the relative change rate of resistance of the composites increases with the increaseof tensile stress. Average strain sensitivity is about 6. The above results show that the GF/PDMS composite is potentially applicable to flexible conductors and stress sensing materials.
ZHENG Chen-fei, XU Rong-qing, CHEN Jing, LU Yun-qing
. Strain Effect on Electrical Conductivity of Three-Dimensional Graphene Composites[J]. Journal of Applied Sciences, 2015
, 33(5)
: 568
-574
.
DOI: 10.3969/j.issn.0255-8297.2015.05.011
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