Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/78807
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Type: Journal article
Title: Characterizing water sorption in 100% solids epoxy coatings
Author: Coniglio, N.
Nguyen, K.
Kurji, R.
Gamboa, E.
Citation: Progress in Organic Coatings, 2013; 76(9):1168-1177
Publisher: Elsevier Science SA
Issue Date: 2013
ISSN: 0300-9440
Statement of
Responsibility: 
N. Coniglio, K. Nguyen, R. Kurji, E. Gamboa
Abstract: In the present work, water sorption kinetics and equilibrium in 100% solids epoxy coatings are investigated by immersion into distilled water baths from 20 to 85 C (absorption tests) and drying in a furnace between 60 and 85 C (desorption tests). The gravimetric liquid sorption measurements reveal a non-Fickian two-stage diffusion behaviour during both absorption and desorption. The effect of hydrothermal history was also investigated. Cycling the immersion bath temperature increases the saturation values. Alternating sorption-desorption cycles increases the speed of water movement. The hydrothermal-induced coating degradation and the sorption modes are discussed. © 2013 Elsevier B.V. All rights reserved.
Keywords: 100% solids epoxy
Gravimetric liquid sorption measurements
Water diffusion coefficient
Non-Fickian two-stage diffusion
Rights: © 2013 Elsevier B.V. All rights reserved.
DOI: 10.1016/j.porgcoat.2013.03.011
Published version: http://dx.doi.org/10.1016/j.porgcoat.2013.03.011
Appears in Collections:Aurora harvest 4
Materials Research Group publications

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