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Electrothermally actuated artificial muscles from the silver-polyethylene-terephthalate core–shell structure

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Abstract

Developing compliant-artificial muscles for applications in soft robotics and flexible electronics is of practical importance. In this work, we construct Ag-PET (silver-polyethylene-terephthalate) twist-coiled structures from Ag-coated PET. Using electrothermal effect as the actuation mechanism, we demonstrate the contraction of the Ag-PET twist-coiled structures under the action of electric voltage. Increasing electric voltage increases Joule heating, resulting in the increase of the actuation distance and actuation load. Controlling the training load and the rotational speed in the preparation of the Ag-PET twist-coiled structures can tailor the line density of active coils and determine the functionalities of the Ag-PET twist-coiled structures.

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Acknowledgements

SL and HO are grateful to the National Science and Technology Council, Taiwan for their financial support.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 300, Taiwan

    Yu-Lun Liu, Hao Ouyang & Sanboh Lee

  2. Department of Athletics, National Taiwan University, Taipei, 10617, Taiwan

    Wen-Shin Lee

  3. Department of Chemical and Materials Engineering, University of Kentucky, Lexington, KY, 40506, USA

    Fuqian Yang

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  1. Yu-Lun Liu
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  2. Wen-Shin Lee
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  3. Fuqian Yang
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  4. Hao Ouyang
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  5. Sanboh Lee
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Correspondence to Sanboh Lee.

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Liu, YL., Lee, WS., Yang, F. et al. Electrothermally actuated artificial muscles from the silver-polyethylene-terephthalate core–shell structure. J Polym Res 29, 379 (2022). https://doi.org/10.1007/s10965-022-03233-w

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  • DOI: https://doi.org/10.1007/s10965-022-03233-w

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