In Situ Observation of Dynamic Wetting Transition in Re-Entrant Microstructures

Yang He, Qingqing Zhou, Shengkun Wang, Ruyuan Yang, Chengyu Jiang, Weizheng Yuan

科研成果: 期刊稿件文章同行评审

11 引用 (Scopus)

摘要

Re-entrant microstructures exhibit excellent wetting stability under different pressure levels, but the underlying mechanism determined by wetting transition behavior at the microscale level remains unclear. We propose the “wetting chip” method for in situ assessment of the dynamic behavior of wetting transition in re-entrant microstructures. High sag and transverse depinning were observed in re-entrant microstructures. Analysis indicated that high sag and transverse depinning mainly influenced the stability of the structures. The threshold pressure and longevity of wetting transition were predicted and experimentally verified. The design criteria of wetting stability, including small geometry design, hydrophobic material selection, and sidewall condition, were also presented. The proposed method and model can be applied to different shapes and geometry microstructures to elucidate wetting stability.

源语言英语
页(从-至)3949-3953
页数5
期刊Langmuir
33
16
DOI
出版状态已出版 - 25 4月 2017

指纹

探究 'In Situ Observation of Dynamic Wetting Transition in Re-Entrant Microstructures' 的科研主题。它们共同构成独一无二的指纹。

引用此