弹性体
材料科学
液晶
制作
不稳定性
人工肌肉
仿生材料
纳米技术
放松(心理学)
复合材料
执行机构
光电子学
计算机科学
医学
心理学
人工智能
社会心理学
替代医学
物理
病理
机械
作者
Xu Dong,Xiaoshuang Zhou,Lvzhou Li,Xiaoting Cao,Jiawei Xu,Shengping Dai,Yilin Jiang,Qingyue Li,Ningyi Yuan,Jianning Ding
出处
期刊:iScience
[Elsevier]
日期:2023-04-01
卷期号:26 (4): 106357-106357
被引量:4
标识
DOI:10.1016/j.isci.2023.106357
摘要
Monodomain liquid crystal elastomers (m-LCEs) exhibit large reversible deformations when subjected to light and heat stimuli. Herein, we developed a new method for the large-scale continuous preparation of m-LCE fibers. These m-LCE fibers exhibit a reversible contraction ratio of 55.6%, breaking strength of 162 MPa (withstanding a load of 1 million times its weight), and maximum output power density of 1250 J/kg, surpassing those of previously reported m-LCEs. These excellent mechanical properties are mainly attributed to the formation of a homogeneous molecular network. Furthermore, the fabrication of m-LCEs with permanent plasticity using m-LCEs with impermanent instability without external intervention was realized by the synergistic effects of the self-restraint of mesogens and the prolonged relaxation process of LCEs. The designed LCE fibers, which are similar to biological muscle fibers and can be easily integrated, exhibit broad application prospects in artificial muscles, soft robots, and micromechanical systems.
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