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Proceedings Paper

Elastomer actuators: systematic improvement in properties by use of composite materials
Author(s): Martin Molberg; Yves Leterrier; Christopher J. G. Plummer; Christiane Löwe; Dorina M. Opris; Frank Clemens; Jan-Anders E. Månson
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Paper Abstract

Dielectric elastomer actuators (DEAs) have attracted increasing attention over the last few years owing to their outstanding properties, e.g. their large actuation strains, high energy density, and pliability, which have opened up a wide spectrum of potential applications in fields ranging from microengineering to medical prosthetics. There is consequently a huge demand for new elastomer materials with improved properties to enhance the performance of DEAs and to overcome the limitations associated with currently available materials, such as the need for high activation voltages and the poor long-term stability. The electrostatic pressure that activates dielectric elastomers can be increased by higher permittivity of the elastomer and thus may lead to lower activation voltages. This has led us to consider composite elastomeric dielectrics based on thermoplastic elastomers or PDMS, and conductive polyaniline or ceramic (soft doped PZT) powder fillers. The potential of such materials and strategies to counter the adverse effects of increased conductivity and elastic modulus are discussed.

Paper Details

Date Published: 9 April 2010
PDF: 9 pages
Proc. SPIE 7642, Electroactive Polymer Actuators and Devices (EAPAD) 2010, 76420M (9 April 2010); doi: 10.1117/12.847493
Show Author Affiliations
Martin Molberg, EMPA (Switzerland)
Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Yves Leterrier, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Christopher J. G. Plummer, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Christiane Löwe, EMPA (Switzerland)
Dorina M. Opris, EMPA (Switzerland)
Frank Clemens, EMPA (Switzerland)
Jan-Anders E. Månson, Ecole Polytechnique Fédérale de Lausanne (Switzerland)

Published in SPIE Proceedings Vol. 7642:
Electroactive Polymer Actuators and Devices (EAPAD) 2010
Yoseph Bar-Cohen, Editor(s)

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