期刊
NATURE PHYSICS
卷 14, 期 2, 页码 191-+出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/NPHYS4305
关键词
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资金
- Collaborative Research Center [1194]
- ERC [340391 SUPRO, SPP 8173]
- EU Marie Sklodowska-Curie grant [722497]
- National Postdoctoral Science Foundation of China
- Alexander von Humboldt Foundation
- German National Academic Foundation
- Marie Curie Actions (MSCA) [722497] Funding Source: Marie Curie Actions (MSCA)
It has been known for more than 200 years that the maximum static friction force between two solid surfaces is usually greater than the kinetic friction force-the force that is required to maintain the relative motion of the surfaces once the static force has been overcome. But the forces that impede the lateral motion of a drop of liquid on a solid surface are not as well characterized, and there is a lack of understanding about liquid-solid friction in general. Here, we report that the lateral adhesion force between a liquid drop and a solid can also be divided into a static and a kinetic regime. This striking analogy with solid-solid friction is a generic phenomenon that holds for liquids of different polarities and surface tensions on smooth, rough and structured surfaces.
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