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Aspects regarding colour fastness and adsorption studies of a new azo-stilbene dye for acrylic resins
The aim of this study was the colour fastness investigation of the new synthetized direct symmetrical azo-stilbene dye, using two of the film field domain reference tests, namely the wet-scrub and the UV tests. The dye was incorporated in a water-based resin, and then was applied on a PCV foil. The...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7971012/ https://www.ncbi.nlm.nih.gov/pubmed/33723366 http://dx.doi.org/10.1038/s41598-021-85452-7 |
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author | Popa, Simona Radulescu-Grad, Maria Elena Perdivara, Alina Mosoarca, Giannin |
author_facet | Popa, Simona Radulescu-Grad, Maria Elena Perdivara, Alina Mosoarca, Giannin |
author_sort | Popa, Simona |
collection | PubMed |
description | The aim of this study was the colour fastness investigation of the new synthetized direct symmetrical azo-stilbene dye, using two of the film field domain reference tests, namely the wet-scrub and the UV tests. The dye was incorporated in a water-based resin, and then was applied on a PCV foil. The film colour parameters were determined before and after 200 wet-scrub cycles. Further, the dye was mixed with an acrylo-polyurethanic resin and then was applied on an aluminium plate, which was exposed to UV radiation for 414 h. The film colour parameters were recorded periodically. The maxima of the reflectance spectra depend on the UV time exposure. The quality of the film was analysed by the degree of gloss. A second focus was the elimination of the dye’s traces from wastewaters (these may be resulted from the industries which apply surface coating methods), using the active carbon powder. The main operational adsorption process parameters influence were investigated. Equilibrium, kinetic and thermodynamic studies were performed. The adsorption process was confirmed by the CIEL*a*b* colour space analysis. All colour studies were investigated using UV–Vis spectroscopy. |
format | Online Article Text |
id | pubmed-7971012 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-79710122021-03-19 Aspects regarding colour fastness and adsorption studies of a new azo-stilbene dye for acrylic resins Popa, Simona Radulescu-Grad, Maria Elena Perdivara, Alina Mosoarca, Giannin Sci Rep Article The aim of this study was the colour fastness investigation of the new synthetized direct symmetrical azo-stilbene dye, using two of the film field domain reference tests, namely the wet-scrub and the UV tests. The dye was incorporated in a water-based resin, and then was applied on a PCV foil. The film colour parameters were determined before and after 200 wet-scrub cycles. Further, the dye was mixed with an acrylo-polyurethanic resin and then was applied on an aluminium plate, which was exposed to UV radiation for 414 h. The film colour parameters were recorded periodically. The maxima of the reflectance spectra depend on the UV time exposure. The quality of the film was analysed by the degree of gloss. A second focus was the elimination of the dye’s traces from wastewaters (these may be resulted from the industries which apply surface coating methods), using the active carbon powder. The main operational adsorption process parameters influence were investigated. Equilibrium, kinetic and thermodynamic studies were performed. The adsorption process was confirmed by the CIEL*a*b* colour space analysis. All colour studies were investigated using UV–Vis spectroscopy. Nature Publishing Group UK 2021-03-15 /pmc/articles/PMC7971012/ /pubmed/33723366 http://dx.doi.org/10.1038/s41598-021-85452-7 Text en © The Author(s) 2021 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Popa, Simona Radulescu-Grad, Maria Elena Perdivara, Alina Mosoarca, Giannin Aspects regarding colour fastness and adsorption studies of a new azo-stilbene dye for acrylic resins |
title | Aspects regarding colour fastness and adsorption studies of a new azo-stilbene dye for acrylic resins |
title_full | Aspects regarding colour fastness and adsorption studies of a new azo-stilbene dye for acrylic resins |
title_fullStr | Aspects regarding colour fastness and adsorption studies of a new azo-stilbene dye for acrylic resins |
title_full_unstemmed | Aspects regarding colour fastness and adsorption studies of a new azo-stilbene dye for acrylic resins |
title_short | Aspects regarding colour fastness and adsorption studies of a new azo-stilbene dye for acrylic resins |
title_sort | aspects regarding colour fastness and adsorption studies of a new azo-stilbene dye for acrylic resins |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7971012/ https://www.ncbi.nlm.nih.gov/pubmed/33723366 http://dx.doi.org/10.1038/s41598-021-85452-7 |
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