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Proceedings Paper

High electromechanical performance of electroelastomers based on interpenetrating polymer networks
Author(s): Soon Mok Ha; Il Seok Park; Michael Wissler; Ron Pelrine; Scott Stanford; Kwang J. Kim; Gabor M. Kovacs; Qibing Pei
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Paper Abstract

The electromechanical performance of interpenetrating polymer networks (IPN) in which one elastomer network is under high tension balanced by compression of the second network, were investigated. Uniaxial stress relaxation analysis confirmed significant decrease in viscoelasticity in comparison with 3M VHB films, the primary component network in the IPN films. In dynamic mechanical analysis, the IPN composite showed a higher mechanical efficiency, suggesting delayed relaxation of the acrylic chains in the presence of IPN formation. This improvement was found to be dependant on the contents of poly(TMPTMA). Actuation performance without mechanical prestrain showed that these IPN electroelastomers had demonstrated high elastic strain energy density (3.5 MJ/m3) and a high electromechanical coupling factor (93.7%). These enhanced electromechanical performances indicate that IPN electroelastomer should be suitable for diverse applications.

Paper Details

Date Published: 10 April 2008
PDF: 9 pages
Proc. SPIE 6927, Electroactive Polymer Actuators and Devices (EAPAD) 2008, 69272C (10 April 2008); doi: 10.1117/12.778282
Show Author Affiliations
Soon Mok Ha, Univ. of California, Los Angeles (United States)
Il Seok Park, Univ. of Nevada, Reno (United States)
Michael Wissler, Swiss Federal Labs. for Materials Testing and Research (Switzerland)
Ron Pelrine, SRI International (United States)
Scott Stanford, SRI International (United States)
Kwang J. Kim, Univ. of Nevada, Reno (United States)
Gabor M. Kovacs, Swiss Federal Labs. for Materials Testing and Research (Switzerland)
Qibing Pei, Univ. of California, Los Angeles (United States)


Published in SPIE Proceedings Vol. 6927:
Electroactive Polymer Actuators and Devices (EAPAD) 2008
Yoseph Bar-Cohen, Editor(s)

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