双动态结合液晶弹性体执行器的光诱导,快速和可逆的时空编程
Zhenxing Wang1, Muqing Si1,2, Junyi Han1
1State Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China.
Advanced materials (Deerfield Beach, Fla.)
|April 16, 2025
概括
研究人员开发了一种新型的液晶弹性体 (LCE) 执行器,使用动态的乙烯-乙烯酸烯酸键. 这允许快速,光诱导的形状变化行为的重编程,使软机器人能够定制轨迹.
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
- 软机器人软机器人 软机器人软机器人
背景情况:
- 液晶弹性体 (LCE) 提供可编程的形状变形能力.
- 目前用于空间时空控制LCE的方法通常是缓慢的或不可逆转的.
- 为精确的运动控制,将阴影调整到同otropic 温度 (TNI) 是关键.
研究的目的:
- 引入一种用于光诱导,可逆控制LCE属性的新方法.
- 为了使LCE执行器的时空重编程能够实现复杂的形状转换.
- 开发一个动态结合策略,以实现高效和可逆的LCE执行.
主要方法:
- 将动态的甲烯和乙烯酸 (An-A) 键纳入超分子LCE网络.
- 使用365nm紫外线进行An-A键循环添加和254nm紫外线进行脱聚合.
- 使用实验性表征和分子动力学模拟来分析网络变化.
主要成果:
- 通过An-A债券,LCE网络的可逆光感应拓变换.
- 证明了用光改变TNI,启动应变和机械性能的能力.
- 在几分钟内使用紫外线实现了LCE属性的重编程和删除.
结论:
- 成功开发了一种新的,可在空间时间上重新编程的LCE执行器.
- An-A动态键系统允许对LCE变形进行快速和可逆的控制.
- 这种方法为需要定制运动轨迹的先进软机器人应用提供了一个有希望的策略.
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