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Lateral surface nonuniformities in drying latex films

Gundabala, VR, Lei, C-H, Ouzineb, K, Dupont, O, Keddie, JL and Routh, AF (2008) Lateral surface nonuniformities in drying latex films AIChE Journal, 54 (12). pp. 3092-3105.

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Abstract

The length scales of film, thickness nonuniformities, commonly observed in polymer colloid (i.e., latex) films, are predicted. This prediction is achieved by investigating the stability behavior of drying latex films. A linear stability analysis is performed on a base solution representing a uniformly drying latex film containing a surfactant. The analysis identifies film thickness nonuniformities over two length scales: long (millimeter) range (from lubrication theory) and short (micrometer) range (from nonlubrication theory). Evaporation and surfactant desorption into the bulk film are identified as the primary destabilizing mechanisms during drying. Experimental evidence through direct visualization and atomic force microscopy confirm the existence of nonuniformities over both length scales, which are shown to be functions of parameters such as initial particle volume fraction, surfactant amount, and desorption strength, while being independent of drying rate. © 2008 American Institute of Chemical Engineers.

Item Type: Article
Subjects : Physics
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
AuthorsEmailORCID
Gundabala, VRUNSPECIFIEDUNSPECIFIED
Lei, C-HUNSPECIFIEDUNSPECIFIED
Ouzineb, KUNSPECIFIEDUNSPECIFIED
Dupont, OUNSPECIFIEDUNSPECIFIED
Keddie, JLUNSPECIFIEDUNSPECIFIED
Routh, AFUNSPECIFIEDUNSPECIFIED
Date : 2008
Identification Number : 10.1002/aic.11621
Copyright Disclaimer : This is the peer reviewed version of the following article: Gundabala, VR, Lei, C-H, Ouzineb, K, Dupont, O, Keddie, JL and Routh, AF (2008) Lateral surface nonuniformities in drying latex films AIChE Journal, 54 (12). 3092 - 3105, which has been published in final form at http://dx.doi.org/10.1002/aic.11621. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving
Additional Information : This is the peer reviewed version of the following article: Gundabala, VR, Lei, C-H, Ouzineb, K, Dupont, O, Keddie, JL and Routh, AF (2008) Lateral surface nonuniformities in drying latex films AIChE Journal, 54 (12). 3092 - 3105, which has been published in final form at http://dx.doi.org/10.1002/aic.11621. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving
Depositing User : Symplectic Elements
Date Deposited : 17 Feb 2016 13:54
Last Modified : 17 Feb 2016 13:54
URI: http://epubs.surrey.ac.uk/id/eprint/138273

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