Conductive filler: elastomer composites for Maxwell stress actuator applications

Colin G. Cameron; Royale S. Underhill; Marc Rawji; Jeffrey P. Szabo

doi:10.1117/12.539733

27 July 2004 Conductive filler: elastomer composites for Maxwell stress actuator applications

Colin G. Cameron, Royale S. Underhill, Marc Rawji, Jeffrey P. Szabo

Proceedings Volume 5385, Smart Structures and Materials 2004: Electroactive Polymer Actuators and Devices (EAPAD); (2004) https://doi.org/10.1117/12.539733
Event: Smart Structures and Materials, 2004, San Diego, CA, United States

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.

Citation Download Citation

Colin G. Cameron, Royale S. Underhill, Marc Rawji, and Jeffrey P. Szabo "Conductive filler: elastomer composites for Maxwell stress actuator applications", Proc. SPIE 5385, Smart Structures and Materials 2004: Electroactive Polymer Actuators and Devices (EAPAD), (27 July 2004); https://doi.org/10.1117/12.539733

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