摩擦记忆离子凝具有歇斯底里粘性-滑性过渡,通过热锁定实现元稳定状态
Jiaqi Chai1,2, Yunfei Ru1,2, Yuchen Jia1,2
1State Key Laboratory of Bioinspired Interfacial Materials Science, Center for Bioinspired Science and Technology, Hangzhou International Innovation Institute, Beihang University, Hangzhou, 311115, China.
Advanced materials (Deerfield Beach, Fla.)
|February 28, 2025
概括
研究人员开发了具有可调节摩擦状态和内存的离子凝. 这些材料可以在粘性,中等性和滑性状态之间切换,从而使软机器人和触觉设备中的应用成为可能.
科学领域:
- 材料科学 材料科学 材料科学
- 软机器人软机器人 软机器人软机器人
- 表面化学 表面化学
背景情况:
- 生物系统在环境适应方面表现出适应摩擦和歇斯底里.
- 人工材料在没有持续的外部刺激的情况下,难以保持摩擦状态.
研究的目的:
- 开发具有响应摩擦记忆力的离子凝.
- 为了实现先进应用的明显和可控制的摩擦状态.
主要方法:
- 在离子凝中利用热诱导的相分离.
- 在散装结构演变和表面滴滴吸附中利用了动力差异.
- 采用玻璃化来锁定转移稳定的中间状态.
主要成果:
- 通过延迟摩擦状态恢复来实现响应式摩擦记忆.
- 展示了三种不同的摩擦状态:粘性 (COF1.8),中等 (0.3-0.5),滑性 (0.03-0.07).
- 工程智能设备用于热识别,脱冰和运动操纵.
结论:
- 具有可调节摩擦内存的离子凝为软机器人和触觉工程提供了新的可能性.
- 开发的材料为创建具有可控制摩擦性能的先进表面提供了洞察力.
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