Share Email Print

Proceedings Paper

New high-performance electroelastomer based on interpenetrating polymer networks
Author(s): Soon Mok Ha; Wei Yuan; Qibing Pei; Ron Pelrine; Scott Stanford
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

This paper describes new electroelastomer films that exhibit high actuation performance at zero to minimal mechanical prestrain. Prestrain is generally required for electroelastomers, also known as dielectric elastomers, such as the VHB 4910 acrylic elastomer, to obtain high electromechanical strain and high elastic energy density. However, the prestrain can cause several serious problems, including the use of a prestrain-supporting structure, a large performance gap between the active materials and packaged actuators, instability at interfaces between the elastomer and prestrain-supporting structure, and stress relaxation. We have introduced a polymerizable and closslinkable liquid additive into highly prestrained acrylic films and subsequently cured the additive to form the second elastomeric network. In the as-obtained Interpenetrating Polymer Networks (IPN), the additive network can effectively support the prestrain of the acrylic films and consequently eliminate the external prestrain- supporting structure. The IPN composite films without external prestrain exhibit electrically-induced strains up to 233% in area, comparable to the VHB 4910 films under high prestrain.

Paper Details

Date Published: 17 March 2006
PDF: 12 pages
Proc. SPIE 6168, Smart Structures and Materials 2006: Electroactive Polymer Actuators and Devices (EAPAD), 616808 (17 March 2006); doi: 10.1117/12.657684
Show Author Affiliations
Soon Mok Ha, Univ. of California/Los Angeles (United States)
Wei Yuan, Univ. of California/Los Angeles (United States)
Qibing Pei, Univ. of California/Los Angeles (United States)
Ron Pelrine, SRI International (United States)
Scott Stanford, SRI International (United States)

Published in SPIE Proceedings Vol. 6168:
Smart Structures and Materials 2006: Electroactive Polymer Actuators and Devices (EAPAD)
Yoseph Bar-Cohen, Editor(s)

© SPIE. Terms of Use
Back to Top