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Drying air-induced disturbances in multi-layer coating systems

Ikin, J.B. and Thompson, H.M. (2007) Drying air-induced disturbances in multi-layer coating systems. Chemical Engineering Science, 62 (23). pp. 6631-6640. ISSN 0009-2509

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Abstract

A range of new experimental techniques is developed to quantify drying-air induced disturbances on low viscosity single and multi-layer coating systems. Experiments on prototype slide-bead coating systems show that the surface disturbances take the form of a wavelike pattern and quantify precisely how its amplitude increases rapidly with wet thickness and decreases with viscosity. Heat transfer measurements show that the redistribution of water to form an additional lower viscosity carrier layer while increasing the solids concentration of the upper layer or layers enables the maximum drying rate, for which drying-air induced surface disturbances are acceptably small, to be increased with significant commercial benefits.

Item Type: Article
Copyright, Publisher and Additional Information: © 2007 Elsevier Ltd. This is an author produced version of a paper published in Chemical Engineering Science. Uploaded in accordance with the publisher's self-archiving policy.
Keywords: films, fluid mechanics, heat transfer, optimisation, polymer processing, visualisation
Institution: The University of Leeds
Academic Units: The University of Leeds > Faculty of Engineering (Leeds) > School of Mechanical Engineering (Leeds) > Institute of Engineering Thermofluids, Surfaces & Interfaces (iETSI) (Leeds)
Depositing User: Repository Officer
Date Deposited: 06 May 2008 17:23
Last Modified: 08 Feb 2013 17:05
Published Version: http://dx.doi.org/10.1016/j.ces.2007.07.024
Status: Published
Publisher: Elsevier
Refereed: Yes
Identification Number: 10.1016/j.ces.2007.07.024
URI: http://eprints.whiterose.ac.uk/id/eprint/3775

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