CAPILLARY HYDRODYNAMICS AND INTERFACIAL PHENOMENA

In coating processes, one or more liquid layers is typically applied, either individually or simultaneously, onto a substrate; after coating, these liquid layers are ultimately transformed into a solid coated structure via chilling, drying, or some other means. For much of a coating process, then, t...

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Bibliographic Details
Published inLiquid Film Coating pp. 19 - 62
Main Authors Weinstein, Steven J., Palmer, Harvey J.
Format Book Chapter
LanguageEnglish
Published The Netherlands Springer Netherlands 1997
Subjects
Bond Number
Capillary Number
Contact Angle
Contact Line
Surface Tension Force
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Summary:In coating processes, one or more liquid layers is typically applied, either individually or simultaneously, onto a substrate; after coating, these liquid layers are ultimately transformed into a solid coated structure via chilling, drying, or some other means. For much of a coating process, then, the layers are in liquid form. To understand the advantages and limitations of such processes, it is imperative to have a fundamental understanding of the physical principles governing fluid flow. In many cases, these principles can be expressed concisely in mathematical form, allowing the suitability of various coating operations for a desired product application to be assessed from a theoretical point of view. Once the agreement between theory and experiment is established for a given process, the need to perform experiments to explore the effect of process variables is greatly diminished; the use of a theoretical analysis can often represent significant savings in time and money in evaluating various coating options.
ISBN:9401062463
9789401062466
DOI:10.1007/978-94-011-5342-3_2