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Proceedings Paper

Potential of thermally expandable polymers with embedded skeletons for actuator applications
Author(s): Gih-Keong Lau; Johannes F. L. Goosen; Trinh Chu Duc; Fred van Keulen
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Paper Abstract

This paper presents an overview of a new type of thermal micro-actuators using thermally expandable polymers with embedded skeletons. Embedding a stiff skeleton enhances the actuation capability of the thermally expandable polymer. Consequently, the skeleton-reinforced polymers feature a large maximum actuation stress (often above 100 MPa) and a moderate maximum strain (often above 1%) besides a faster thermal response. In addition, the present composite design has room for performance improvement by tuning the volume fraction of the polymeric expander or selecting a proper expander material. Furthermore, the micro-actuators can be taylored for different motion characteristics, using various skeleton shapes. Finally, we discussed the possible applications using the present actuators.

Paper Details

Date Published: 10 April 2008
PDF: 8 pages
Proc. SPIE 6927, Electroactive Polymer Actuators and Devices (EAPAD) 2008, 69271D (10 April 2008); doi: 10.1117/12.776238
Show Author Affiliations
Gih-Keong Lau, Nanyang Technological Univ. (Singapore)
Johannes F. L. Goosen, Delft Univ. of Technology (Netherlands)
Trinh Chu Duc, Delft Univ. of Technology (Netherlands)
Fred van Keulen, Delft Univ. of Technology (Netherlands)

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

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