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The interfacial energy in the Cassie-Baxter regime on the pyramid decorated solid surface
1Faculty of Chemistry, Adam Mickiewicz University, Umultowska 89b, 61-714, Poznań, Poland. gwnow@amu.edu.pl.
Abstract:
The wettability of the solid surface covered with a pattern of pyramids is studied in categories of behavior of a single liquid droplet settled onto such a surface. The Cassie-Baxter regime of wetting is assumed. The cellular model of liquid-solid interface has been proposed. On the basis of the calculations for a single elemental cell with applied periodic boundary conditions, the components of the interfacial energy have been obtained. The dependence of the interfacial energy and hypothetical pseudo-contact angle on the hydrostatic pressure is discussed. The influence of the line tension on the wettability of the surface, expressed in terms of the apparent contact angle is shown.
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