Contact Angle Relaxation during the Spreading of Partially Wetting Drops

Contact Angle Relaxation during the Spreading of Partially Wetting Drops

We apply the molecular kinetic theory of wetting to the relaxation of the dynamic contact angle during the spreading of liquid droplets on solid surfaces. Experimental data have been obtained for several solid−liquid combinations and are successfully fitted using the theory. Physical parameters are...

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Veröffentlicht in:Langmuir 1997-12, Vol.13 (26), p.7293-7298
Hauptverfasser: de Ruijter, M. J, De Coninck, J, Blake, T. D, Clarke, A, Rankin, A
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Sprache:eng
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Chemistry
Exact sciences and technology
General and physical chemistry
Solid-liquid interface
Surface physical chemistry
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container_end_page 7298
container_issue 26
container_start_page 7293
container_title Langmuir
container_volume 13
creator de Ruijter, M. J
De Coninck, J
Blake, T. D
Clarke, A
Rankin, A
description We apply the molecular kinetic theory of wetting to the relaxation of the dynamic contact angle during the spreading of liquid droplets on solid surfaces. Experimental data have been obtained for several solid−liquid combinations and are successfully fitted using the theory. Physical parameters are extracted and interpreted in terms of the microscopic characteristics of the liquid and the solid. We also show that droplet spreading and forced wetting can be described by the same equations. A comparison is made between the results obtained within the molecular-kinetic framework and those obtained with conventional hydrodynamic theory.
doi_str_mv 10.1021/la970825v
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subjects Chemistry
Exact sciences and technology
General and physical chemistry
Solid-liquid interface
Surface physical chemistry
title Contact Angle Relaxation during the Spreading of Partially Wetting Drops
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