Interfacial tension and spreading coefficient for thin films

Rafael Tadmor; Ken G. Pepper

doi:10.1021/la702790b

Interfacial tension and spreading coefficient for thin films

Rafael Tadmor, Ken G. Pepper

Research output: Contribution to journal › Article › peer-review

34 Scopus citations

Abstract

We present a modified mathematical expression for the interfacial tension of very thin films. At large thicknesses the modified expression converges to the classic mathematical expression. We use this modified expression to derive an equation for the spreading coefficient as a function of film thickness. The spreading coefficient equation is then used to calculate the equilibrium thickness of a wetting liquid film for a "pancake drop". Our predictions agree with experimental data. The study is subjected to systems with van der Waals interactions only.

Original language	English
Pages (from-to)	3185-3190
Number of pages	6
Journal	Langmuir
Volume	24
Issue number	7
DOIs	https://doi.org/10.1021/la702790b
State	Published - 1 Apr 2008
Externally published	Yes

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Surfaces and Interfaces
Spectroscopy
Electrochemistry

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10.1021/la702790b

Cite this

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abstract = "We present a modified mathematical expression for the interfacial tension of very thin films. At large thicknesses the modified expression converges to the classic mathematical expression. We use this modified expression to derive an equation for the spreading coefficient as a function of film thickness. The spreading coefficient equation is then used to calculate the equilibrium thickness of a wetting liquid film for a {"}pancake drop{"}. Our predictions agree with experimental data. The study is subjected to systems with van der Waals interactions only.",

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AB - We present a modified mathematical expression for the interfacial tension of very thin films. At large thicknesses the modified expression converges to the classic mathematical expression. We use this modified expression to derive an equation for the spreading coefficient as a function of film thickness. The spreading coefficient equation is then used to calculate the equilibrium thickness of a wetting liquid film for a "pancake drop". Our predictions agree with experimental data. The study is subjected to systems with van der Waals interactions only.

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Interfacial tension and spreading coefficient for thin films

Abstract

ASJC Scopus subject areas

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