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Proceedings Paper

Comparison of dielectric materials for the activation of a macro-scale hinge configuration
Author(s): C. Jordi; A. Schmidt; G. Kovacs; Paolo Ermanni
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Paper Abstract

While much of the research on dielectric elastomer actuators used to concentrate on VHB 4910 as dielectric material, lately many new, specifically developed materials have come into focus. The acrylic VHB has been thoroughly characterized in a macro-scale agonist-antagonist configuration on an active hinge. This was carried out with the aim of using it on an airship, which was activated, undulating body and a fin and thus propelled in a fish-like manner. The concept was proved in flight, but still lifetime and viscosity of the actuators and the time-costing fabrication due to the necessary large pre-stretches of the dielectric membrane caused severe inconveniences. In order to evaluate the usability of other materials for this specific purpose, two other materials, a corrugated silicone with silver electrodes (by PolyPower) and an acrylic with interpenetrating network (IPN) developed by Pei et al. were characterized under similar conditions. The influence of the material on performance and design of the actuators and the conclusions for the use of the materials on the airship (and on applications with similar performance requirements) are presented.

Paper Details

Date Published: 28 March 2011
PDF: 11 pages
Proc. SPIE 7976, Electroactive Polymer Actuators and Devices (EAPAD) 2011, 79761G (28 March 2011); doi: 10.1117/12.880431
Show Author Affiliations
C. Jordi, EMPA (Switzerland)
ETH (Switzerland)
A. Schmidt, EMPA (Switzerland)
ETH (Switzerland)
G. Kovacs, EMPA (Switzerland)
Paolo Ermanni, ETH (Switzerland)

Published in SPIE Proceedings Vol. 7976:
Electroactive Polymer Actuators and Devices (EAPAD) 2011
Yoseph Bar-Cohen; Federico Carpi, Editor(s)

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