在人类安全刺激下,具有同时超高执行应变和功率密度的软执行器
Zhen Jiang1, Hongda Lu1, Qingtian Zhang1
1School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, Wollongong, NSW, 2522, Australia.
Advanced materials (Deerfield Beach, Fla.)
|December 4, 2025
概括
研究人员开发了新的液晶弹性体 (LCE) 软执行器,使用体温刺激实现高执行应变和功率密度. 这些先进的软执行器非常适合下一代可穿戴设备和生物医学系统.
科学领域:
- 材料科学 材料科学 材料科学
- 机器人技术 机器人技术 机器人技术
- 聚合物化学 聚合物化学
背景情况:
- 软执行器对于各种应用,如可穿戴设备和生物医学系统至关重要.
- 现有的软执行器无法满足在轻微刺激下高执行应变和功率密度的联合要求.
研究的目的:
- 设计和开发一种新的软执行器系统,同时提供高的执行应变和功率密度.
- 解决当前软执行器在响应人类安全刺激时的局限性.
主要方法:
- 轻度交联的凝的宏分子工程,以在液晶弹性体 (LCE) 薄膜中创建厚度方向方向梯度.
- 使用超高拉伸比率 (高达2000%) 和受控的回收来建立分子导向.
- 开发完全交叉连接的单域LCE软执行器,响应体温刺激.
主要成果:
- 实现了88%的高启动应变和1960 W kg-1的功率密度.
- 已证明的性能超过现有的对轻微刺激敏感的软执行器.
- 在设备级演示中成功集成LCE执行器,包括旋转软机器人和智能安全开关.
结论:
- 新型体温响应的LCE软执行器克服了以前的局限性,提供了前所未有的性能.
- 开发的执行器技术具有重要的潜力,可以在现实世界中集成到先进的软机器人系统中.
- 这一突破为下一代具有增强能力的软机器人铺平了道路.
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