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Proceedings Paper

Conductive filler: elastomer composites for Maxwell stress actuator applications
Author(s): Colin G. Cameron; Royale S. Underhill; Marc Rawji; Jeffrey P. Szabo
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Paper Abstract

Dielectric elastomer actuators rely on the compressive force generated by the electrostatic attraction of a pair of electrodes across a low-modulus polymer.This in turn induces the deformation of the elastomer in the plane normal to the force. It has been shown that the response of such a device is proportional to the permittivity of the core elastomer layer. Here we report our progress in increasing the permittivity of a polyurethane elastomer through the addition of a conductive filler, graphite. At loadings near the percolation threshold, the actuation stress increases by a factor of over 500, and relative permittivity beyond 4000 is reported.

Paper Details

Date Published: 27 July 2004
PDF: 9 pages
Proc. SPIE 5385, Smart Structures and Materials 2004: Electroactive Polymer Actuators and Devices (EAPAD), (27 July 2004); doi: 10.1117/12.539733
Show Author Affiliations
Colin G. Cameron, Defence R&D Canada/Atlantic (Canada)
Royale S. Underhill, Defence R&D Canada/Atlantic (Canada)
Marc Rawji, Defence R&D Canada/Atlantic (Canada)
Jeffrey P. Szabo, Defence R&D Canada/Atlantic (Canada)


Published in SPIE Proceedings Vol. 5385:
Smart Structures and Materials 2004: Electroactive Polymer Actuators and Devices (EAPAD)
Yoseph Bar-Cohen, Editor(s)

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