Degradation of Sol-Gel Acrylic Coatings Based on Si and Zr Investigated Using Electrochemical Impedance, Infrared and X-Ray Photoelectron Spectroscopies

This study aimed to synthesise and characterise two types of sol-gel acrylic coatings: one based on Si and the other based on Si and Zr. These coatings, which served as a barrier for corrosion protection of aluminium, were synthesised by sol-gel methodology using silicon precursors tetraethyl orthos...

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Autores principales:	Peter Rodič, Sandrine Zanna, Ingrid Milošev, Philippe Marcus
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	aluminium hybrid sol-gel corrosion protection real-time FTIR XPS EIS Technology T
Acceso en línea:	https://doaj.org/article/765e8a5e56db4860b34bce778a8d0981
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spelling	oai:doaj.org-article:765e8a5e56db4860b34bce778a8d09812021-11-08T07:44:28ZDegradation of Sol-Gel Acrylic Coatings Based on Si and Zr Investigated Using Electrochemical Impedance, Infrared and X-Ray Photoelectron Spectroscopies2296-801610.3389/fmats.2021.756447https://doaj.org/article/765e8a5e56db4860b34bce778a8d09812021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fmats.2021.756447/fullhttps://doaj.org/toc/2296-8016This study aimed to synthesise and characterise two types of sol-gel acrylic coatings: one based on Si and the other based on Si and Zr. These coatings, which served as a barrier for corrosion protection of aluminium, were synthesised by sol-gel methodology using silicon precursors tetraethyl orthosilicate and organically modified silicon precursor 3-methacryloxypropyltrimethoxysilane, without and with the addition of zirconium(IV) n-propoxide chelated with methacrylic acid. The synthesis process was followed using real-time Fourier transform infrared spectroscopy, which confirmed the condensation reactions of Si–O–Si and Si–O–Zr networks, depending on the sol type. This was reflected in the composition of the coating as well, as shown by X-ray photoelectron spectroscopy. The coating topography, thickness and morphology were analysed using focused ion beam scanning electron microscopy. X-ray photoelectron spectroscopy was employed to follow the degradation of acrylic coatings upon immersion in sodium chloride solution. Corrosion properties, evaluated using electrochemical impedance spectroscopy in 0.1 M NaCl, confirmed high barrier protection of coated aluminium with acrylic coatings based on Si and even better for coating based on Si with Zr. The more durable corrosion protection of the latter was also confirmed by salt spray testing.Peter RodičSandrine ZannaIngrid MiloševPhilippe MarcusFrontiers Media S.A.articlealuminiumhybrid sol-gelcorrosion protectionreal-time FTIRXPSEISTechnologyTENFrontiers in Materials, Vol 8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	aluminium hybrid sol-gel corrosion protection real-time FTIR XPS EIS Technology T
spellingShingle	aluminium hybrid sol-gel corrosion protection real-time FTIR XPS EIS Technology T Peter Rodič Sandrine Zanna Ingrid Milošev Philippe Marcus Degradation of Sol-Gel Acrylic Coatings Based on Si and Zr Investigated Using Electrochemical Impedance, Infrared and X-Ray Photoelectron Spectroscopies
description	This study aimed to synthesise and characterise two types of sol-gel acrylic coatings: one based on Si and the other based on Si and Zr. These coatings, which served as a barrier for corrosion protection of aluminium, were synthesised by sol-gel methodology using silicon precursors tetraethyl orthosilicate and organically modified silicon precursor 3-methacryloxypropyltrimethoxysilane, without and with the addition of zirconium(IV) n-propoxide chelated with methacrylic acid. The synthesis process was followed using real-time Fourier transform infrared spectroscopy, which confirmed the condensation reactions of Si–O–Si and Si–O–Zr networks, depending on the sol type. This was reflected in the composition of the coating as well, as shown by X-ray photoelectron spectroscopy. The coating topography, thickness and morphology were analysed using focused ion beam scanning electron microscopy. X-ray photoelectron spectroscopy was employed to follow the degradation of acrylic coatings upon immersion in sodium chloride solution. Corrosion properties, evaluated using electrochemical impedance spectroscopy in 0.1 M NaCl, confirmed high barrier protection of coated aluminium with acrylic coatings based on Si and even better for coating based on Si with Zr. The more durable corrosion protection of the latter was also confirmed by salt spray testing.
format	article
author	Peter Rodič Sandrine Zanna Ingrid Milošev Philippe Marcus
author_facet	Peter Rodič Sandrine Zanna Ingrid Milošev Philippe Marcus
author_sort	Peter Rodič
title	Degradation of Sol-Gel Acrylic Coatings Based on Si and Zr Investigated Using Electrochemical Impedance, Infrared and X-Ray Photoelectron Spectroscopies
title_short	Degradation of Sol-Gel Acrylic Coatings Based on Si and Zr Investigated Using Electrochemical Impedance, Infrared and X-Ray Photoelectron Spectroscopies
title_full	Degradation of Sol-Gel Acrylic Coatings Based on Si and Zr Investigated Using Electrochemical Impedance, Infrared and X-Ray Photoelectron Spectroscopies
title_fullStr	Degradation of Sol-Gel Acrylic Coatings Based on Si and Zr Investigated Using Electrochemical Impedance, Infrared and X-Ray Photoelectron Spectroscopies
title_full_unstemmed	Degradation of Sol-Gel Acrylic Coatings Based on Si and Zr Investigated Using Electrochemical Impedance, Infrared and X-Ray Photoelectron Spectroscopies
title_sort	degradation of sol-gel acrylic coatings based on si and zr investigated using electrochemical impedance, infrared and x-ray photoelectron spectroscopies
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/765e8a5e56db4860b34bce778a8d0981
work_keys_str_mv	AT peterrodic degradationofsolgelacryliccoatingsbasedonsiandzrinvestigatedusingelectrochemicalimpedanceinfraredandxrayphotoelectronspectroscopies AT sandrinezanna degradationofsolgelacryliccoatingsbasedonsiandzrinvestigatedusingelectrochemicalimpedanceinfraredandxrayphotoelectronspectroscopies AT ingridmilosev degradationofsolgelacryliccoatingsbasedonsiandzrinvestigatedusingelectrochemicalimpedanceinfraredandxrayphotoelectronspectroscopies AT philippemarcus degradationofsolgelacryliccoatingsbasedonsiandzrinvestigatedusingelectrochemicalimpedanceinfraredandxrayphotoelectronspectroscopies
_version_	1718442822252625920

Degradation of Sol-Gel Acrylic Coatings Based on Si and Zr Investigated Using Electrochemical Impedance, Infrared and X-Ray Photoelectron Spectroscopies

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