Surfactant-driven spreading of a liquid on a vertical surface

S. He; J. B. Ketterson

doi:10.1063/1.868712

Surfactant-driven spreading of a liquid on a vertical surface

S. He^*, J. B. Ketterson

^*Corresponding author for this work

MRC - Materials Research Center

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

29 Scopus citations

Abstract

The spreading behavior of a liquid on the surface of a solid substrate is greatly changed by the presence of a molecular layer of organic material (a surfactant) on the liquid surface. In this work, we studied the spreading of water covered by a monolayer of valinomycin on a vertical glass slide, using an apparatus for Langmuir-Blodgett film deposition. The rate of spreading strongly depends on the surfactant concentration, and the spreading front is highly unstable: it bifurcates while spreading, forming tree-like patterns.

Original language	English (US)
Pages (from-to)	2640-2647
Number of pages	8
Journal	Physics of Fluids
Volume	7
Issue number	11
DOIs	https://doi.org/10.1063/1.868712
State	Published - 1995

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Fluid Flow and Transfer Processes
Computational Mechanics

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10.1063/1.868712

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AB - The spreading behavior of a liquid on the surface of a solid substrate is greatly changed by the presence of a molecular layer of organic material (a surfactant) on the liquid surface. In this work, we studied the spreading of water covered by a monolayer of valinomycin on a vertical glass slide, using an apparatus for Langmuir-Blodgett film deposition. The rate of spreading strongly depends on the surfactant concentration, and the spreading front is highly unstable: it bifurcates while spreading, forming tree-like patterns.

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Surfactant-driven spreading of a liquid on a vertical surface

Abstract

ASJC Scopus subject areas

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