Why does the Cassie-Baxter equation apply?

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116 Scopus citations

Abstract

Application of the Cassie-Baxter equation to the calculation of apparent contact angles is discussed. It is demonstrated that taking into account the precursor film surrounding the drop justifies the application of the Cassie-Baxter equation. Consideration of the precursor film is important for design of self-cleaning superhydrophobic surfaces.

Original languageEnglish
Pages (from-to)47-50
Number of pages4
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume324
Issue number1-3
DOIs
StatePublished - 1 Jul 2008

Keywords

  • Apparent contact angle
  • Cassie-Baxter equation
  • Design of superhydrophobic surfaces
  • Precursor film
  • Triple line

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