液晶与显示2025，Vol.40Issue(2)：250-271,22.DOI:10.37188/CJLCD.2024-0263
液晶弹性体自持驱动器研究进展
Advances in self-sustained actuators based on liquid crystal elastomers
摘要
Abstract
Liquid crystal elastomer(LCE)actuators are stimuli-responsive anisotropic polymer networks with aligned mesogens and moderate crosslinking.Renowned for their reversible actuation capability,diverse stimuli-responsiveness,rapid response,high programmability and robust mechanical properties,LCE actuators hold significant promise in applications such as soft robotics,artificial muscles and micro-intelligent devices.Recently,based on the reversible actuation of LCEs,self-sustained LCE actuators have emerged through the integration of built-in negative feedback loop control within the actuating system.These actuators emulate biological soft systems,executing rhythmic,continuous,and self-sustaining motions by autonomously harvesting energy from constant stimuli or natural environments and converting it into perpetual mechanical motion through their physical intelligence.This review offers a comprehensive analysis of the stimuli-responsiveness,construction principles,negative feedback control mechanisms,motion dynamics and potential application fields of two key categories:LCE self-oscillators and LCE self-sustained locomotors.We also provide an outlook on the future prospect of self-sustained LCE actuaors.关键词
液晶弹性体/刺激响应性/自持驱动/自振荡器/自持行进器Key words
liquid crystal elastomers/stimulus responsiveness/self-sustained actuators/self-oscillators/self-sustained locomotors引用本文复制引用
李理想,江智超,赵静,张英,刘清,杨清,刘玥,肖尧予..液晶弹性体自持驱动器研究进展[J].液晶与显示,2025,40(2):250-271,22.基金项目
国家自然科学基金(No.52303152,No.52403164) （No.52303152,No.52403164）
四川省自然科学基金面上项目(No.2024NSFSC0254) （No.2024NSFSC0254）
高分子材料工程国家重点实验室优秀青年项目(No.sklpme2023-2-07,No.sklpme2023-2-15)Supported by National Natural Science Foundation of China(No.52303152,No.52403164) （No.sklpme2023-2-07,No.sklpme2023-2-15）
Sichuan Science and Technology Program(No.2024NSFSC0254) （No.2024NSFSC0254）
Excellent Youth Project of State Key Laboratory of Polymer Materials Engineering(No.sklpme2023-2-07,No.sklpme2023-2-15) （No.sklpme2023-2-07,No.sklpme2023-2-15）
