Slip velocity during wetting of solids

A slip velocity at the contact line of a liquid drop on a solid surface originates because of the force induced by the gradient of the chemical potential in the liquid along the solid-liquid interface. Einstein's equation is used to relate the slip velocity and the force. The gradient occurs be...

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Bibliographic Details
Published in:Journal of colloid and interface science 1977-01, Vol.59 (1), p.135-138
Main Authors: Ruckenstein, E, Dunn, C.S
Format: Article
Language:English
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Summary:A slip velocity at the contact line of a liquid drop on a solid surface originates because of the force induced by the gradient of the chemical potential in the liquid along the solid-liquid interface. Einstein's equation is used to relate the slip velocity and the force. The gradient occurs because (a) the interaction potential at the liquid-solid interface near the contact line due to the neighboring molecules differs from that of a semi-infinite liquid and depends upon the distance from the contact line and (b) the chemical potential is pressure dependent.
ISSN:0021-9797
1095-7103
DOI:10.1016/0021-9797(77)90347-2