Polyorganosilazane/GPTMS functionalized silica coatings as an integrated corrosion–resistance system for AA2024-T3 aluminum alloy

A hybrid coating based on polyorganosilazane (Durazane® 1800) combined with 3-glycidyloxypropyltrimethoxysilane (GPTMS) was successfully synthesized to improve the corrosion resistance of the AA2024-T3 aluminum alloy. The polymers were cross–linked with the addition of tetra-n-butylammonium fluoride...

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Autores: Kumar Aruchamy, Udhaya, Merino, Emilia, Durán, Alicia, Eckert, Maroš, Galusek, Dušan, Castro Martín, Yolanda
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/350301
Acceso en línea:http://hdl.handle.net/10261/350301
https://api.elsevier.com/content/abstract/scopus_id/85171743091
Access Level:acceso abierto
Palabra clave:Coatings
Corrosion
Electrochemistry
GPTMS
Polysilazane
Synthesis
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spelling Polyorganosilazane/GPTMS functionalized silica coatings as an integrated corrosion–resistance system for AA2024-T3 aluminum alloyKumar Aruchamy, UdhayaMerino, EmiliaDurán, AliciaEckert, MarošGalusek, DušanCastro Martín, YolandaCoatingsCorrosionElectrochemistryGPTMSPolysilazaneSynthesisA hybrid coating based on polyorganosilazane (Durazane® 1800) combined with 3-glycidyloxypropyltrimethoxysilane (GPTMS) was successfully synthesized to improve the corrosion resistance of the AA2024-T3 aluminum alloy. The polymers were cross–linked with the addition of tetra-n-butylammonium fluoride (TBAF), and the hybrid coatings were deposited on aluminum substrates by dip coating and dried at 120 °C. Crack-free films with a thickness of 13 μm were obtained. Field emission electron microscopy (FESEM) analysis indicated that the synthesized hybrid films were smooth, homogenous, and devoid of cracks. Attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) studies demonstrated that the intensity of the Si–N–Si peak was maintained, showing that the backbone of the polysilazane was preserved after the addition of GPTMS. Nuclear magnetic resonance (NMR) spectroscopy indicated that glycidoxypropyl groups were still present in the Si–O–N network of the modified polysilazane. Contact angle measurements indicated that the hybrid coatings were hydrophobic, with a measured contact angle of 93 ± 6°. The electrochemical results confirmed that the synthesized hybrid coatings improved the corrosion resistance of the aluminum substrate in 3.5 wt% NaCl solution. This suggest that the modified polyorganosilazane coating is an effective solution for developing anti-corrosive coatings on metal substrates, offering excellent adhesion strength and good scratch resistance.The research was funded by the European Union’s Horizon 2020 research and innovation programme under the H2020 project FunGlass (Centre for Functional and Surface Functionalized Glass) [grant agreement No. 739566] and the TED2021-131258B-I00, funded by MCIN/AEI/10.13039/501100011033 and by the European Union “NextGenerationEU”/PRTR».Peer reviewedElsevier0000-0002-7920-54680000-0001-5995-87800000-0001-5747-2162Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242023info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/350301https://api.elsevier.com/content/abstract/scopus_id/85171743091reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésResults in Surfaces and Interfaceshttps://doi.org/10.1016/j.rsurfi.2023.100147Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3503012026-05-22T06:33:51Z
dc.title.none.fl_str_mv Polyorganosilazane/GPTMS functionalized silica coatings as an integrated corrosion–resistance system for AA2024-T3 aluminum alloy
title Polyorganosilazane/GPTMS functionalized silica coatings as an integrated corrosion–resistance system for AA2024-T3 aluminum alloy
spellingShingle Polyorganosilazane/GPTMS functionalized silica coatings as an integrated corrosion–resistance system for AA2024-T3 aluminum alloy
Kumar Aruchamy, Udhaya
Coatings
Corrosion
Electrochemistry
GPTMS
Polysilazane
Synthesis
title_short Polyorganosilazane/GPTMS functionalized silica coatings as an integrated corrosion–resistance system for AA2024-T3 aluminum alloy
title_full Polyorganosilazane/GPTMS functionalized silica coatings as an integrated corrosion–resistance system for AA2024-T3 aluminum alloy
title_fullStr Polyorganosilazane/GPTMS functionalized silica coatings as an integrated corrosion–resistance system for AA2024-T3 aluminum alloy
title_full_unstemmed Polyorganosilazane/GPTMS functionalized silica coatings as an integrated corrosion–resistance system for AA2024-T3 aluminum alloy
title_sort Polyorganosilazane/GPTMS functionalized silica coatings as an integrated corrosion–resistance system for AA2024-T3 aluminum alloy
dc.creator.none.fl_str_mv Kumar Aruchamy, Udhaya
Merino, Emilia
Durán, Alicia
Eckert, Maroš
Galusek, Dušan
Castro Martín, Yolanda
author Kumar Aruchamy, Udhaya
author_facet Kumar Aruchamy, Udhaya
Merino, Emilia
Durán, Alicia
Eckert, Maroš
Galusek, Dušan
Castro Martín, Yolanda
author_role author
author2 Merino, Emilia
Durán, Alicia
Eckert, Maroš
Galusek, Dušan
Castro Martín, Yolanda
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv 0000-0002-7920-5468
0000-0001-5995-8780
0000-0001-5747-2162
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Coatings
Corrosion
Electrochemistry
GPTMS
Polysilazane
Synthesis
topic Coatings
Corrosion
Electrochemistry
GPTMS
Polysilazane
Synthesis
description A hybrid coating based on polyorganosilazane (Durazane® 1800) combined with 3-glycidyloxypropyltrimethoxysilane (GPTMS) was successfully synthesized to improve the corrosion resistance of the AA2024-T3 aluminum alloy. The polymers were cross–linked with the addition of tetra-n-butylammonium fluoride (TBAF), and the hybrid coatings were deposited on aluminum substrates by dip coating and dried at 120 °C. Crack-free films with a thickness of 13 μm were obtained. Field emission electron microscopy (FESEM) analysis indicated that the synthesized hybrid films were smooth, homogenous, and devoid of cracks. Attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) studies demonstrated that the intensity of the Si–N–Si peak was maintained, showing that the backbone of the polysilazane was preserved after the addition of GPTMS. Nuclear magnetic resonance (NMR) spectroscopy indicated that glycidoxypropyl groups were still present in the Si–O–N network of the modified polysilazane. Contact angle measurements indicated that the hybrid coatings were hydrophobic, with a measured contact angle of 93 ± 6°. The electrochemical results confirmed that the synthesized hybrid coatings improved the corrosion resistance of the aluminum substrate in 3.5 wt% NaCl solution. This suggest that the modified polyorganosilazane coating is an effective solution for developing anti-corrosive coatings on metal substrates, offering excellent adhesion strength and good scratch resistance.
publishDate 2023
dc.date.none.fl_str_mv 2023
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/350301
https://api.elsevier.com/content/abstract/scopus_id/85171743091
url http://hdl.handle.net/10261/350301
https://api.elsevier.com/content/abstract/scopus_id/85171743091
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Results in Surfaces and Interfaces
https://doi.org/10.1016/j.rsurfi.2023.100147
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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