偏振光调控液晶聚合物驱动器

打开文本图片集

中图分类号： O753+. 2 文献标识码：A doi：10.37188/CJLCD.2024-0242 CSTR：32172.14.CJLCD.2024-0242

Liquid crystal polymer actuators manipulated by polarized light

Abstract： Liquid crystal polymers （LCPs） possess distinctive chemical structures and physical properties， which endow them with significant potential in applications such as soft robotics and artificial muscles.In recent years，light regulation technology has emerged as a focal point in this research domain，due to its non-contact nature，precise control，and low energy consumption.Polarization，an essential physical attribute of light，introduces a novel dimension of regulation for photoresponsive systems.Modulating the polarization properties of light can significantly diversify the editing and operational methods of photoresponsive LCP actuators，thereby expanding their application scope.A plethora of studies have already demonstrated the control of shape changes in LCP devices or optical elements using polarized light. Building upon this foundation，this article provides a comprehensive summary of the working principles of polarized lightcontrolled LCP actuators. It also highlights several representative applications of polarized light-controlled liquid crystal actuators，based on the characteristics of different photoresponsive structures. Additionally， the article reviews the current challenges faced by such actuators and offers a perspective on future development. Future research endeavors should focus on enhancing the stability，photothermal conversion efficiency，and response speed of these actuators to propel their application advancement.

Key words： liquid crystal polymer； polarization light control; smart materials；soft actuator

1引言

2 偏振光驱动机制

柔性驱动器由于对环境刺激具有主动响应能力，在人造肌肉、软体机器人、仿生装置、传感器等制造中受到广泛关注，并且对生物医学、航空航天、军事探索等领域的发展具有重要的作用[1]。（剩余16524字）