Spreading kinetics of constrained thin films
Keywords and Phrases
"The kinetics of spreading of thin liquid films on a solid substrate in the presence of constraints has been studied here. The internal constraint appears in the form of dissolved polymers which cause the solution to be non wetting or only partially wetting. The polymer is assumed to be non-adsorbing. The fluid flow is governed by the Laplace pressure and the disjoining pressure. A detailed formulation has been solved using a numerical scheme and results have been presented for two cases of thin films with and without dissolved polymers. Both these cases have further been analyzed in the presence and absence of evaporation effects. The external constraint is that of the film pinned to a slot. The results explain well experimental observations by other researchers who observed that drops of polymer solutions spread with rates similar to setting liquids and then suddenly stopped to equilibrate. It is seen that the contact line becomes pinned in the presence of evaporation effects"--Abstract, leaf iii.
Neogi, P. (Partho), 1951-
Isaac, Kakkattukuzhy M.
Wang, Jee C.
Chemical and Biochemical Engineering
Ph. D. in Chemical Engineering
National Science Foundation (U.S.)
University of Missouri--Rolla
Journal article titles appearing in thesis/dissertation
- Wetting kinetics of a thin film pinned to a slot
- Wetting kinetics of films containing non-adsorbing polymers
- Wetting kinetics of a thin film evaporating in air
- Wetting by polymer solutions
- Wagging the contact line: transverse and longitudinal waves
viii, 67 leaves
© 2006 Saritha Sathyanarayanan, All rights reserved.
Dissertation - Citation
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Full-text not available: Request this publication directly from Missouri S&T Library or contact your local library.http://laurel.lso.missouri.edu/record=b5962746~S5
Sathyanarayanan, Saritha, "Spreading kinetics of constrained thin films" (2006). Doctoral Dissertations. 1720.
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