Modeling of Wetting: A Study of Nanowetting at Rough and Heterogeneous Surfaces

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• 作者：Mathias Lundgren ; Neil L. Allan ; Terence Cosgrove
• 刊名：Langmuir
• 出版年：2007
• 出版时间：January 30, 2007
• 年：2007
• 卷：23
• 期：3
• 页码：1187 - 1194
• 全文大小：937K
• 年卷期：v.23,no.3(January 30, 2007)
• ISSN：1520-5827

文摘

Molecular dynamics simulations were performed to study the behavior of nanoscale water droplets at solid surfaces.Simulations of droplets on heterogeneous patterned surfaces show that the relative sizes of the domains and the dropletsplay an important role as do the interactions between the solid and the liquid, particularly when the domain widthis comparable to the droplet radius. For pillar surfaces, a transition is observed between the Wenzel and the Cassieand Baxter regimes with increasing pillar height. The effects of pillar width and the gap between the pillars were alsoexamined. The simulations show clearly the importance of the detailed topography and composition of the solidsurface.