液晶弹性体智能材料的先进制造技术与结构设计

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中图分类号： O753+.2 文献标识码：A doi：10.37188/CJLCD.2024-0237 CSTR：32172.14.CJLCD.2024-0237

Advanced manufacturing techniques and structure design of liquid crystal elastomer smart materials

Abstract： Liquid crystal elastomer is a type of soft smart materials composed of liquid crystal mesogens and polymer networks. Under external stimuli such as heat，light，or electric field，liquid crystal elastomers can undergo large reversible deformation，showing great potential in applications of soft robotics，artificial muscles，self-sensing systems，and biomedical devices. In recent years，with the development of various manufacturing technologies，researchers have extensively explored the processng methods and structure design of liquid crystal elastomers. This paper first introduces three conventional preparation strategies for liquid crystal elastomers，discussing their features and limitations.Then，we summarize the recent research advances in the manufacturing technologies of liquid crystal elastomers.We further introduce the strategies to utilize the structure design of liquid crystal elastomers to achieve multiple motion modes and rapid actuation. Finally，we discuss the current challenges and future development of liquid crystal elastomers.

Key words： liquid crystal elastomer; smart materials；advanced manufacturing techniques；structure design; 3D printing

1引言

液晶是介于各向同性液体和有序固体状态之间的一类物质状态，既具有液态的流动性，又保留一维或二维分子排列的有序性，呈现出特殊的物理性质。（剩余40750字）