Adelaide Research & Scholarship
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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 |
| Appears in Collections: | Aurora harvest 4 Materials Research Group publications |
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