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液晶弹性体纤维的螺旋形态化用于状执行

Xiongbin Yang^1,2, Longfei Bai^1,2, Xiangyu Huang^1,2

¹Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, P. R. China.

ACS applied materials & interfaces

|August 25, 2025

概括

研究人员开发出类似植物的液晶弹性体螺旋纤维 (LCESF). 这些纤维在被加热或暴露在光线下时会显著改变形状,

科学领域:

材料科学
软机器人
生物仿真

背景情况:

有机体利用3D变形来与环境互动.
植物形状的转变具有重大意义.
开发模仿螺旋的人工执行器仍然是一个挑战.

研究的目的:

开发一种简化,低成本的响应性螺旋纤维制造方法.
研究液晶弹性体螺旋纤维 (LCESF) 的形状变化能力.
探索LCESF在软机器人和微型设备中的潜在应用.

主要方法:

使用简化方法制造液晶弹性体螺旋纤维 (LCESF).
调查热启动:加热后收缩和冷却后恢复.
通过涂层聚多巴胺 (PDA) 层来增强光响应性.
测试LCESF作为软抓取器用于对象操纵.

主要成果:

在加热时,LCESF表现出类似形的形状变化 (螺旋卷和绕线),收缩率高达73%.
纤维恢复了它们的原始线性形状,
通过添加PDA涂层来实现光响应.
软抓应用显示最大提升能力为自身重量的76倍.
在循环负载下,LCESF表现出稳定,可重复的启动,没有显著的疲劳.

结论:

开发了具有大量收缩和螺旋形态的能力的热和光响应LCESF.
LCESF提供了一个有前途的平台,用于创建人工状执行器.
潜在的应用包括需要复杂的形状变化和执行的微机器和软机器人.

关键词:

液晶弹性体光响应性软执行器状纤维三维螺旋变形

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