Paper Title:
Organic-Inorganic Nanocomposite Electrodes for Dielectric Elastomer Actuator
  Abstract

This study dealt with the Maxwell stress effect of waterborne polyurethane (WPU)/ conductive filler nanocomposite, which was a promising candidate for a material to be used in dielectric elastomer actuator electrode. Conductive nanocomposites were produced by using three types of conductive filler such as carbon black (CB), vapor grown carbon fiber (VGCF), and silver powder (Ag). Among them, conductive nanocomposite containing VGCF exhibited the lowest threshold concentration. And the blend of CB and VGCF (CB/VGCF) filler had a synergistic effect to electrical conductivity. Actuation test showed that CB/VGCF nanocomposite electrode had the largest displacement. Then it could be stated that the improvement of the displacement in CB/VGCF nanocomposite electrode was originated from the increase in relative dielectric constant. In addition, a unique feature of the hysteresis in the bending deformation was described. The feature is that the prior application of an electric field significantly improves the bending speed in the successive application.

  Info
Periodical
Key Engineering Materials (Volumes 336-338)
Edited by
Wei Pan and Jianghong Gong
Pages
323-326
DOI
10.4028/www.scientific.net/KEM.336-338.323
Citation
C. H. Kim, H. D. Jung, J. O. Lee, N. J. Jo, "Organic-Inorganic Nanocomposite Electrodes for Dielectric Elastomer Actuator", Key Engineering Materials, Vols. 336-338, pp. 323-326, 2007
Online since
April 2007
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Price
$32.00
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