Hydrodynamic Signatures of Stationary Marangoni-Driven Surfactant Transport.
Phys Rev Lett
; 119(26): 264501, 2017 Dec 29.
Article
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| MEDLINE
| ID: mdl-29328684
ABSTRACT
We experimentally study steady Marangoni-driven surfactant transport on the interface of a deep water layer. Using hydrodynamic measurements, and without using any knowledge of the surfactant physicochemical properties, we show that sodium dodecyl sulphate and Tergitol 15-S-9 introduced in low concentrations result in a flow driven by adsorbed surfactant. At higher surfactant concentration, the flow is dominated by the dissolved surfactant. Using camphoric acid, whose properties are a priori unknown, we demonstrate this method's efficacy by showing its spreading is adsorption dominated.
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MEDLINE
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En
Revista:
Phys Rev Lett
Año:
2017
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Article
País de afiliación:
Japón