Piezoresistive Effect of Multi-Wall Carbon Nanotube Reinforced Epoxy Resin Coating

Abstract:

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Some conductive MWNT with different loading was filled in epoxy resin through the dispersion technique of surfactant-decoration, high-intensive shear mixing, and bath sonication process. This kind of conductive functional resin coating was then simply brushed on a FRP sheet surface. The electrical conductivity of the cured nanocomposite coating was acquired by four-electrode method to explore the percolation threshold and piezoresistive effect. The change in its longitudinal strain of the coating and FRP sheet was simultaneously sampled under three-point bending. Results reveal that, at the onset percolation threshold (2.0%), the nanocomposite possesses superior piezoresistive effect with high strain-sensitivity (up to 27), which favors to health monitoring to FRP structure used as a novel self-sensing coating.

Info:

Periodical:

Edited by:

Deliang Chen

Pages:

196-199

DOI:

10.4028/www.scientific.net/AMR.266.196

Citation:

J. L. Luo et al., "Piezoresistive Effect of Multi-Wall Carbon Nanotube Reinforced Epoxy Resin Coating", Advanced Materials Research, Vol. 266, pp. 196-199, 2011

Online since:

June 2011

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Price:

$35.00

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