期刊
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
卷 114, 期 13, 页码 3387-3392出版社
NATL ACAD SCIENCES
DOI: 10.1073/pnas.1614667114
关键词
repellency; Cassie state; monostability; interfaces; dewetting
资金
- National Natural Science Foundation of China [11372153, 11172149, 11632009]
- Electricite de France through the project Condensation on Micro/Nanostructured Surfaces
- Statoil ASA (Norway) through the project Nanotechnology for Anti-icing Application
Superrepellency is an extreme situation where liquids stay at the tops of rough surfaces, in the so-called Cassie state. Owing to the dramatic reduction of solid/liquid contact, such states lead to many applications, such as antifouling, droplet manipulation, hydrodynamic slip, and self-cleaning. However, superrepellency is often destroyed by impalement transitions triggered by environmental disturbances whereas inverse transitions are not observed without energy input. Here we show through controlled experiments the existence of a monostable region in the phase space of surface chemistry and roughness, where transitions from Cassie to (impaled) Wenzel states become spontaneously reversible. We establish the condition for observing monostability, which might guide further design and engineering of robust superrepellent materials.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据