10 April 2008 Potential of thermally expandable polymers with embedded skeletons for actuator applications
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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.
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Gih-Keong Lau, Gih-Keong Lau, Johannes F. L. Goosen, Johannes F. L. Goosen, Trinh Chu Duc, Trinh Chu Duc, Fred van Keulen, Fred van Keulen, } "Potential of thermally expandable polymers with embedded skeletons for actuator applications", Proc. SPIE 6927, Electroactive Polymer Actuators and Devices (EAPAD) 2008, 69271D (10 April 2008); doi: 10.1117/12.776238; https://doi.org/10.1117/12.776238

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