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Fiber Actuators Based on Reversible Thermal Responsive Liquid Crystal Elastomer.

Xuwang Tian1, Yongshi Guo2, Jiaqi Zhang1

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Summary

This review details advances in liquid crystal elastomer fiber actuators (LCEFAs), focusing on their thermal response. It covers mechanisms, fabrication, applications, and future prospects for these promising soft actuators.

Keywords:
active responsive textilesartificial musclesfiber actuatorliquid crystal elastomerreversible thermal response

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Area of Science:

  • Soft robotics
  • Materials science
  • Biomimetic engineering

Background:

  • Soft actuators mimic biological movement, offering adaptability and safety in robotics, AI, and healthcare.
  • Liquid crystal elastomer fiber actuators (LCEFAs) provide reversible linear motion and are integrable into complex structures for programmed movements.

Purpose of the Study:

  • To provide a comprehensive review of recent advances in reversible thermal response LCEFAs.
  • To systematically analyze thermal driving mechanisms and heating strategies.
  • To discuss fabrication methods and functional applications.

Main Methods:

  • Systematic literature review focusing on thermal response LCEFAs.
  • Analysis of thermal driving mechanisms and heating strategies (direct/indirect).
  • Summary and discussion of LCEFA fabrication techniques and applications.

Main Results:

  • Detailed overview of thermal mechanisms and heating strategies for LCEFAs.
  • Compilation of various fabrication methods and diverse functional applications.
  • Identification of challenges in performance improvement and large-scale production.

Conclusions:

  • LCEFAs are promising soft actuators with significant potential in various fields.
  • Further research is needed to overcome challenges in performance and scalability.
  • Future development opportunities exist for LCEFAs in advanced applications.