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Biomimetics pp 51-80 | Cite as

Modeling of Contact Angle for a Liquid in Contact with a Rough Surface for Various Wetting Regimes

  • Bharat BhushanEmail author
Chapter
Part of the Springer Series in Materials Science book series (SSMATERIALS, volume 279)

Abstract

The roughness distribution affects contact angle and surface wetting. Three surface wetting regimes are discussed, which include Wenzel, Cassie-Baxter, and Cassie regimes. In the Wenzel regime, a liquid droplet completely wets the rough surface with a homogeneous interface. In the Cassie-Baxter regime, a heterogeneous or composite interface with air pockets trapped between the asperities is formed. In a Cassie regime, a liquid film impregnates some of the cavities in an area surrounding the droplet as well.

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Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  1. 1.Nanoprobe Laboratory for Bio/Nanotechnology and Biomimetics (NLBB)The Ohio State UniversityColumbusUSA

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