11 July 2002 Thermally actuated polymer benders
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Abstract
A thermally driven liquid crystalline elastomer bending actuator was prepared with extended cycling capabilities. This device operated with strain rates of 1 Hz displacement and 0.13 Hz recovery starting from 25.1 degree(s)C to a maximum of 150 degree(s)C. The device is a bending actuator having a multilaminated material structure. Observed displacements were lower than previous freestanding liquid crystalline elastomer films due to the constraints imposed on the liquid crystalline elastomer by the device architecture. A device operated with low power of less than 2 W and cycled over a 1000 times successfully.
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D. Laurence Thomsen, D. Laurence Thomsen, Grayson Bush, Grayson Bush, Patrick Keller, Patrick Keller, Robert G. Bryant, Robert G. Bryant, } "Thermally actuated polymer benders", Proc. SPIE 4695, Smart Structures and Materials 2002: Electroactive Polymer Actuators and Devices (EAPAD), (11 July 2002); doi: 10.1117/12.475191; https://doi.org/10.1117/12.475191
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