坚固和光塑性液晶弹性体,具有2倍动态链接器,用于人工肌肉
Yongpeng Wu1,2, Danfeng Pei2, Fang Wei2
1School of Material Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, P. R. China.
ACS applied materials & interfaces
|September 6, 2023
概括
具有双动态键的新型液晶弹性体 (LCE) 实现了类似肌肉的可逆执行. 这些自我愈合,可回收的LCE是可重编程的,为先进的人工肌肉和软机器人铺平了道路.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 生物材料工程 生物材料工程
背景情况:
- 液晶弹性体 (LCE) 以其独特的执行特性而闻名.
- 优化LCE以与生物肌肉可比的可逆启动仍然是一个关键的挑战.
- 动态债券在LCE中提供了自我修复,可回收利用和可编程性的潜力.
研究的目的:
- 在LCE中引入一个具有双重动态特性的独特细分.
- 为了在LCE中实现可逆的驱动行为,与活的骨肌肉相比.
- 探索这些新型LCE的自我修复,自我接,可回收利用和可重编程性.
主要方法:
- 纳入动态的disenide对热/光可塑性的共价键.
- 集成H-bond阵列,以实现动态交叉连接和机械强度.
- 使用高温或强烈可见光照射对LCE进行编程.
主要成果:
- 开发的LCE具有自我愈合,自和可回收性.
- 通过温度或光刺激实现了可重编程的启动.
- 启动阻塞应力达到1.96 MPa,弹性模量在80°C时为14.4 MPa,启动工作能力为135.2 kJ m−3.
结论:
- 双重动态LCE提供了一条可逆启动的途径,模仿骨肌肉.
- 这些LCE展示了可持续执行器,人工肌肉和软机器人的潜力.
- 与朱尔电极或光热材料的集成使得电力驱动和光热人工肌肉成为可能.
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