多重平衡使得可调节的液滴在有图案的液体表面上被湿
Xitong Zhang1,2, Hongyu Zhao1, Jack R Panter3
1Institute for Multiscale Thermofluids, School of Engineering, University of Edinburgh, King's Buildings, Mayfield Road, Edinburgh EH9 3FD, UK.
Science advances
|September 19, 2025
概括
研究人员开发了有图案的液体表面 (PaLS) 来控制滴滴,克服了固体表面的限制. PaLS提供可调节的湿度,并消除了先进应用的接触线固定.
科学领域:
- 表面科学是一门科学.
- 流体动力学 流体动力学
- 材料科学是一种材料科学.
背景情况:
- 在微流体,传热和打印方面,以可控的湿度为固体表面设计图案至关重要.
- 固体表面粗性引入了诸如接触线固定和摩擦等局限性,阻碍了滴滴操纵.
- 现有的方法难以实现精确的湿度控制和表面光滑.
研究的目的:
- 引入一种新的实验策略和理论设计原则,用于图案液体表面 (PaLS).
- 为了证明PaLS如何将受控的湿度与滑剂注入表面的超光滑性相结合.
- 探索PaLS提供的丰富的湿行为和控制机制.
主要方法:
- 使用滑剂注入表面技术,实验制造有图案的液体表面 (PaLS).
- 在PaLS上描述滴滴行为和湿状态.
- 表面平均定律的理论推导,用于不同湿状态下的明显接触角.
主要成果:
- 帕尔斯表现出10个不同的湿状态,为滴水行为提供了前所未有的控制.
- 在PaLS上的液滴的表面接触角度可以在整个可湿度范围内调整.
- 在PaLS上消除了固体表面常见的接触线结效应.
- 导出理论定律准确地预测实验和模拟数据的表面接触角度.
结论:
- PaLS提供了一种独特而有效的方法,用于水滴管理的表面图案.
- PaLS的独特特性利用了流体与滑剂浸表面的相互作用.
- 这项技术对于需要精确滴滴控制和操纵的应用具有重大潜力.
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