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Proceedings Paper

Electroactive nonionic poly(vinyl alcohol) gel actuator
Author(s): Suzana Popovic; Chunye Xu; Hirohisa Tamagawa; Minoru Taya
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Paper Abstract

A fast (0.8sec), large (>10%) and reversible deformation of Poly(vinyl alcohol) gel (PVA) swollen with dimethyl sulfoxide (DMSO) upon electric field was realized, and the maximum observed strain reached quite high 27% (DP2100). St-PVA gels were found to exhibit more stable and reversible deformation than at-PVA gels. Furthermore, we have studied the macroscopic structure of PVA/DMSO gels and its influence on their strain exhibition. Four differently structured PVA/DMSO gels, monolayer, circular, triple-layered and porous, were prepared. Monolayer gel exhibited the highly reproducible strain behavior. The mechanism of electric actuation of PVA/DMSO gel is proposed. Then a design of gel mechanical switch is shown, which exhibited the fast response to the electric field with a large, stable and reversible stretching deformation.

Paper Details

Date Published: 16 July 2001
PDF: 10 pages
Proc. SPIE 4329, Smart Structures and Materials 2001: Electroactive Polymer Actuators and Devices, (16 July 2001); doi: 10.1117/12.432652
Show Author Affiliations
Suzana Popovic, Univ. of Washington (United States)
Chunye Xu, Univ. of Washington (United States)
Hirohisa Tamagawa, Gifu Univ. (Japan)
Minoru Taya, Univ. of Washington (United States)

Published in SPIE Proceedings Vol. 4329:
Smart Structures and Materials 2001: Electroactive Polymer Actuators and Devices
Yoseph Bar-Cohen, Editor(s)

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