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15 April 2016 Bistable electroactive polymer with sharp rigid-to-rubbery phase transition
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Bistable electroactive polymers (BSEP) usually exhibit glass transition that spans a rather broad temperature range and are normally actuated above 70 °C. High actuation temperature limits the BSEP for wearable and personal assistive applications. A phase-changing polymer is synthesized and employed as BSEP having a narrow rigid-to-rubbery transition temperature range. Shape memory effect with both fixation and recovery rate close to 100% was observed. Diaphragm actuators of the BSEP can be electrically actuated at 50 °C up to 70% strain, and the deformed shape was fixed after cooling the BSEP below the transition temperature. The rigid-to-rigid actuation can be repeated for at least 10,000 cycles.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yu Qiu, Zhi Ren, Wei Hu, Chao Liu, and Qibing Pei "Bistable electroactive polymer with sharp rigid-to-rubbery phase transition", Proc. SPIE 9798, Electroactive Polymer Actuators and Devices (EAPAD) 2016, 97981U (15 April 2016);


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