Effect of ethylene glycol dimethacrylate on VOC reduction, rheological, mechanical and anticorrosion properties of a hybrid sol-gel coating on AA2024-T3 and sulfuric acid anodized AA2024-T3

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dc.contributor.authorAgustín-Sáenz, Cecilia
dc.contributor.authorMartín-Ugarte, Eider
dc.contributor.authorPérez-Allende, Beatriz
dc.contributor.authorIzagirre-Etxeberria, Usoa
dc.contributor.institutionVALORIZACIÓN DE RESIDUOS
dc.contributor.institutionPOLIMEROS
dc.contributor.institutionINGENIERÍA DE SUPERFICIES
dc.date.issued2021-10
dc.descriptionPublisher Copyright: © 2021 Elsevier B.V.
dc.description.abstractAn inorganic–organic coating based on methacrylic-functionalized silica and zirconia was synthesized by sol-gel technology as replacer of Cr(VI)-based treatments used to protect both unconverted and electrically converted AA2024-T3 for aeronautic application. The effect of a bi-methacrylate organic precursor in the formulation was studied with the aim to reduce the sol viscosity and coating thickness while crosslink was increased and volatile organic compounds (VOC) were diminished in the formulation. The viscoelastic behavior was studied by rheometry, and the properties of the coating material were related to its corrosion protection capability, studied by electrochemical impedance spectroscopy and neutral salt spray tests. The mechanical properties of the resulting coatings were studied by dynamic microindentation and rotary wear tests. The formulations containing the organic precursor provided coatings with higher degree of crosslinking and lower VOC. The derived coatings were thinner and provided outstanding corrosion protection with low thickness on unconverted AA2024-T3 and as sealant of hard sulfuric acid anodized AA2024-T3. The hardness was improved in comparison to coatings without the organic precursor although abrasion resistance was better for coatings with higher inorganic character.en
dc.description.sponsorshipThe basis of this work received funding from the European Union 7th Framework Programme for Research and Technological Development, within the project AVCOP under Grant Agreement ID 315041 . The authors thank the support of the Basque Government for the Elkartek project Frontiers-V (ref. KK2019/00077).
dc.description.statusPeer reviewed
dc.identifier.citationAgustín-Sáenz , C , Martín-Ugarte , E , Pérez-Allende , B & Izagirre-Etxeberria , U 2021 , ' Effect of ethylene glycol dimethacrylate on VOC reduction, rheological, mechanical and anticorrosion properties of a hybrid sol-gel coating on AA2024-T3 and sulfuric acid anodized AA2024-T3 ' , Progress in Organic Coatings , vol. 159 , 106408 . https://doi.org/10.1016/j.porgcoat.2021.106408
dc.identifier.doi10.1016/j.porgcoat.2021.106408
dc.identifier.issn0300-9440
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85111191902&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofProgress in Organic Coatings
dc.relation.projectIDEuropean Union 7th Framework Programme for Research and Technological Development, 315041
dc.relation.projectIDEusko Jaurlaritza, KK2019/00077
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsAA2024-T3
dc.subject.keywordsAnticorrosion
dc.subject.keywordsHybrid sol-gel
dc.subject.keywordsMicrohardness
dc.subject.keywordsSulfuric acid anodizing
dc.subject.keywordsVOC
dc.subject.keywordsGeneral Chemical Engineering
dc.subject.keywordsSurfaces, Coatings and Films
dc.subject.keywordsOrganic Chemistry
dc.subject.keywordsMaterials Chemistry
dc.titleEffect of ethylene glycol dimethacrylate on VOC reduction, rheological, mechanical and anticorrosion properties of a hybrid sol-gel coating on AA2024-T3 and sulfuric acid anodized AA2024-T3en
dc.typejournal article
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