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Comparison of Crosslinking Efficiency in Dip and Roll-Deposited Coatings on Their Oxygen Barrier
[Image: see text] Coating techniques are key factors in determining coated film properties. In the present study, nanocomposite coatings of poly(vinyl alcohol) and a nanoclay, montmorillonite, were deposited layer-by-layer using roll (doctor blade, DB) and dip coating techniques, in an effort to com...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2019
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6777300/ https://www.ncbi.nlm.nih.gov/pubmed/31592139 http://dx.doi.org/10.1021/acsomega.9b00950 |
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author | Ben Dhieb, Fatma Tabatabaei, Seyed H. Mighri, Frej Ajji, Abdellah |
author_facet | Ben Dhieb, Fatma Tabatabaei, Seyed H. Mighri, Frej Ajji, Abdellah |
author_sort | Ben Dhieb, Fatma |
collection | PubMed |
description | [Image: see text] Coating techniques are key factors in determining coated film properties. In the present study, nanocomposite coatings of poly(vinyl alcohol) and a nanoclay, montmorillonite, were deposited layer-by-layer using roll (doctor blade, DB) and dip coating techniques, in an effort to compare the impact of these techniques on the crosslinking efficiency and oxygen barrier of the coated films. The barrier properties at different relative humidities were tested, and the extent of nanoclay intercalation as well as the films’ morphology was investigated. Barrier was further improved by crosslinking the coating with glyoxal and glutaraldehyde. Both techniques gave similar results but with a higher impact of relative humidity in roll coated films. Better results were achieved by tailoring the composition of those coatings to favor a higher density of hydrogen bonding in the coating. |
format | Online Article Text |
id | pubmed-6777300 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-67773002019-10-07 Comparison of Crosslinking Efficiency in Dip and Roll-Deposited Coatings on Their Oxygen Barrier Ben Dhieb, Fatma Tabatabaei, Seyed H. Mighri, Frej Ajji, Abdellah ACS Omega [Image: see text] Coating techniques are key factors in determining coated film properties. In the present study, nanocomposite coatings of poly(vinyl alcohol) and a nanoclay, montmorillonite, were deposited layer-by-layer using roll (doctor blade, DB) and dip coating techniques, in an effort to compare the impact of these techniques on the crosslinking efficiency and oxygen barrier of the coated films. The barrier properties at different relative humidities were tested, and the extent of nanoclay intercalation as well as the films’ morphology was investigated. Barrier was further improved by crosslinking the coating with glyoxal and glutaraldehyde. Both techniques gave similar results but with a higher impact of relative humidity in roll coated films. Better results were achieved by tailoring the composition of those coatings to favor a higher density of hydrogen bonding in the coating. American Chemical Society 2019-09-16 /pmc/articles/PMC6777300/ /pubmed/31592139 http://dx.doi.org/10.1021/acsomega.9b00950 Text en Copyright © 2019 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes. |
spellingShingle | Ben Dhieb, Fatma Tabatabaei, Seyed H. Mighri, Frej Ajji, Abdellah Comparison of Crosslinking Efficiency in Dip and Roll-Deposited Coatings on Their Oxygen Barrier |
title | Comparison of Crosslinking Efficiency in Dip and Roll-Deposited
Coatings on Their Oxygen Barrier |
title_full | Comparison of Crosslinking Efficiency in Dip and Roll-Deposited
Coatings on Their Oxygen Barrier |
title_fullStr | Comparison of Crosslinking Efficiency in Dip and Roll-Deposited
Coatings on Their Oxygen Barrier |
title_full_unstemmed | Comparison of Crosslinking Efficiency in Dip and Roll-Deposited
Coatings on Their Oxygen Barrier |
title_short | Comparison of Crosslinking Efficiency in Dip and Roll-Deposited
Coatings on Their Oxygen Barrier |
title_sort | comparison of crosslinking efficiency in dip and roll-deposited
coatings on their oxygen barrier |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6777300/ https://www.ncbi.nlm.nih.gov/pubmed/31592139 http://dx.doi.org/10.1021/acsomega.9b00950 |
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