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Proceedings Paper

Improved actuation strain of PDMS-based DEA materials chemically modified with softening agents
Author(s): Miriam Biedermann; Martin Blümke; Michael Wegener; Hartmut Krüger
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Paper Abstract

Dielectric elastomer actuators (DEAs) are smart materials that gained much in interest particularly in recent years. One active field of research is the improvement of their properties by modification of their structural framework. The object of this work is to improve the actuation properties of polydimethylsiloxane (PDMS)-based DEAs by covalent incorporation of mono-vinyl-terminated low-molecular PDMS chains into the PDMS network. These low-molecular units act as a kind of softener within the PDMS network. The loose chain ends interfere with the network formation and lower the network’s density. PDMS films with up to 50wt% of low-molecular PDMS additives were manufactured and the chemical, mechanical, electrical, and electromechanical properties of these novel materials were investigated.

Paper Details

Date Published: 1 April 2015
PDF: 7 pages
Proc. SPIE 9430, Electroactive Polymer Actuators and Devices (EAPAD) 2015, 94301G (1 April 2015); doi: 10.1117/12.2085484
Show Author Affiliations
Miriam Biedermann, Fraunhofer-Institut für Angewandte Polymerforschung (Germany)
Martin Blümke, Fraunhofer-Institut für Angewandte Polymerforschung (Germany)
Michael Wegener, Fraunhofer-Institut für Angewandte Polymerforschung (Germany)
Hartmut Krüger, Fraunhofer-Institut für Angewandte Polymerforschung (Germany)

Published in SPIE Proceedings Vol. 9430:
Electroactive Polymer Actuators and Devices (EAPAD) 2015
Yoseph Bar-Cohen, Editor(s)

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