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Polymer Complex Fiber for Linear Actuation with High Working Density and Stable Catch-State

机译：聚合物复合纤维，用于线性致动，具有高工作密度和稳定的捕获状态

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摘要

Fiber-based linear actuators (FLAs) are a key module in microrobots and biomimetic devices. It has been a great challenge to develop linear actuators that can balance output stress and output strain and hence provide high working density. Herein, we report the preparation and performance of a FLA system made from commercially available materials and allowed mass production at relatively low cost. The FLAs can lift up or lay down objects more than 1000 times of its own weight during active contraction and expansion under environmental stimuli. The contraction ratio and output stress can reach 30% and 0.24 MPa, respectively, and the sustainable work density is about 80 J/kg, which is 10 times the typical value of human skeletal muscles. Especially, the FLAs show stable catch-state (lock-up state) with no creeping and no further energy consumption.
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  • 来源
    《ACS Macro Letters》 |2020年第11期|共7页
  • 作者

    Dezhong Liu; Liping Zhu; Wentao Huang; Kan Yue; Shuguang Yang;

  • 作者单位

    State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Center for Advanced Low-Dimension Materials College of Materials Science and Engineering Donghua University;

    State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Center for Advanced Low-Dimension Materials College of Materials Science and Engineering Donghua University;

    State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Center for Advanced Low-Dimension Materials College of Materials Science and Engineering Donghua University;

    South China Advanced Institute for Soft Mater Science and Technology South China University of Technology;

    State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Center for Advanced Low-Dimension Materials College of Materials Science and Engineering Donghua University;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 有机化学;
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