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Improvement of Adhesion Properties and Corrosion Resistance of Sol-Gel Coating on Zinc

Corrosion is a major problem for durability of many metals and alloys. Among the efficient classical surface treatments, chromate-based treatments must be banished from industrial use due to their toxicity. At the same time, sol-gel routes have demonstrated high potential to develop an efficient bar...

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Autores principales: Savignac, Pauline, Menu, Marie-Joëlle, Gressier, Marie, Denat, Bastien, Khadir, Yacine El, Manov, Stephan, Ansart, Florence
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6100545/
https://www.ncbi.nlm.nih.gov/pubmed/29751566
http://dx.doi.org/10.3390/molecules23051079
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author Savignac, Pauline
Menu, Marie-Joëlle
Gressier, Marie
Denat, Bastien
Khadir, Yacine El
Manov, Stephan
Ansart, Florence
author_facet Savignac, Pauline
Menu, Marie-Joëlle
Gressier, Marie
Denat, Bastien
Khadir, Yacine El
Manov, Stephan
Ansart, Florence
author_sort Savignac, Pauline
collection PubMed
description Corrosion is a major problem for durability of many metals and alloys. Among the efficient classical surface treatments, chromate-based treatments must be banished from industrial use due to their toxicity. At the same time, sol-gel routes have demonstrated high potential to develop an efficient barrier effect against aggressive environments. By this process, the anti-corrosion property can be also associated to others in the case of the development of multi-functional hybrid coatings. In this paper, the main goal is precisely to improve both the corrosion resistance and the adhesion properties of phosphated zinc substrates by the deposition of a hybrid (organic-inorganic) sol-gel layer. To reach this double objective, a choice between two formulations 3-glycidoxypropyltrimethoxysilane (GPTMS)/aluminum-tri-sec-butoxide (ASB) and 3-(trimethoxysilyl)propylmethacrylate (MAP)/tetraethylorthosilicate (TEOS) was firstly made based on the results obtained by microstructural characterizations using SEM, optical analysis, and mechanical characterization such as shock and/or scratch tests (coupled to climatic chamber and salt spray exposure). Several investigations were performed in this study, and the best formulation and performances of the system were obtained by adding a new precursor (1-[3-(trimethoxysilyl)propyl]ureido-UPS) under controlled conditions, as detailed in this paper.
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spelling pubmed-61005452018-11-13 Improvement of Adhesion Properties and Corrosion Resistance of Sol-Gel Coating on Zinc Savignac, Pauline Menu, Marie-Joëlle Gressier, Marie Denat, Bastien Khadir, Yacine El Manov, Stephan Ansart, Florence Molecules Article Corrosion is a major problem for durability of many metals and alloys. Among the efficient classical surface treatments, chromate-based treatments must be banished from industrial use due to their toxicity. At the same time, sol-gel routes have demonstrated high potential to develop an efficient barrier effect against aggressive environments. By this process, the anti-corrosion property can be also associated to others in the case of the development of multi-functional hybrid coatings. In this paper, the main goal is precisely to improve both the corrosion resistance and the adhesion properties of phosphated zinc substrates by the deposition of a hybrid (organic-inorganic) sol-gel layer. To reach this double objective, a choice between two formulations 3-glycidoxypropyltrimethoxysilane (GPTMS)/aluminum-tri-sec-butoxide (ASB) and 3-(trimethoxysilyl)propylmethacrylate (MAP)/tetraethylorthosilicate (TEOS) was firstly made based on the results obtained by microstructural characterizations using SEM, optical analysis, and mechanical characterization such as shock and/or scratch tests (coupled to climatic chamber and salt spray exposure). Several investigations were performed in this study, and the best formulation and performances of the system were obtained by adding a new precursor (1-[3-(trimethoxysilyl)propyl]ureido-UPS) under controlled conditions, as detailed in this paper. MDPI 2018-05-03 /pmc/articles/PMC6100545/ /pubmed/29751566 http://dx.doi.org/10.3390/molecules23051079 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Savignac, Pauline
Menu, Marie-Joëlle
Gressier, Marie
Denat, Bastien
Khadir, Yacine El
Manov, Stephan
Ansart, Florence
Improvement of Adhesion Properties and Corrosion Resistance of Sol-Gel Coating on Zinc
title Improvement of Adhesion Properties and Corrosion Resistance of Sol-Gel Coating on Zinc
title_full Improvement of Adhesion Properties and Corrosion Resistance of Sol-Gel Coating on Zinc
title_fullStr Improvement of Adhesion Properties and Corrosion Resistance of Sol-Gel Coating on Zinc
title_full_unstemmed Improvement of Adhesion Properties and Corrosion Resistance of Sol-Gel Coating on Zinc
title_short Improvement of Adhesion Properties and Corrosion Resistance of Sol-Gel Coating on Zinc
title_sort improvement of adhesion properties and corrosion resistance of sol-gel coating on zinc
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6100545/
https://www.ncbi.nlm.nih.gov/pubmed/29751566
http://dx.doi.org/10.3390/molecules23051079
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