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Aesthetically textured, hard latex coatings by fast IR-assisted evaporative lithography

Georgiadis, A, Muhamad, FN, Utgenannt, A and Keddie, JL (2013) Aesthetically textured, hard latex coatings by fast IR-assisted evaporative lithography Progress in Organic Coatings, 76 (12). pp. 1786-1791.

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Polymer coatings with periodic topographic patterns, repeating over millimetre length scales, can be created from lateral flows in an aqueous dispersion of colloidal particles. The flow is driven by differences in evaporation rate across the wet film surface created by IR radiative heating through a shadow mask. This new process, which we call IR radiation-assisted evaporative lithography (IRAEL), combines IR particle sintering with the concept of evaporative lithography. Here, a series of experiments has been conducted in which the mass of the latex is measured as a function of the exposure time under infrared radiation through a mask. The water evaporation rates and the minimum exposure time required for a dry film are estimated as a function of the power density of the IR emitter. The temperature of the wet film is monitored to avoid overheating and boiling of the water, which will otherwise cause defects. It is demonstrated that textured films can be created on a variety of substrates (plastics, metals, paper and glass), and processing times can be as short as 5 min. We use IRAEL to decorate household goods with an aesthetic coating with the desired texture. © 2013 Elsevier B.V. All rights reserved.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
Georgiadis, A
Muhamad, FN
Utgenannt, A
Keddie, JL
Date : 1 December 2013
Identification Number : 10.1016/j.porgcoat.2013.05.017
Additional Information : NOTICE: this is the author’s version of a work that was accepted for publication in Progress in Organic Coatings. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Progress in Organic Coatings, 76(12), December 2013, DOI 10.1016/j.porgcoat.2013.05.017.
Depositing User : Symplectic Elements
Date Deposited : 21 Oct 2013 14:00
Last Modified : 09 Jun 2014 13:50

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