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dc.contributor.authorCabedo, Luis
dc.contributor.authorSuay Antón, Julio José
dc.contributor.authorPuig Brugal, Montserrat
dc.contributor.authorGracenea Zapirain, José Javier
dc.contributor.authorJiménez Morales, Antonia
dc.contributor.authorGamez-Perez, Jose
dc.date.accessioned2015-07-16T06:01:37Z
dc.date.available2015-07-16T06:01:37Z
dc.date.issued2014-08
dc.identifier.citationPUIG, M., et al. Adhesion enhancement of powder coatings on galvanised steel by addition of organo-modified silica particles. Progress in Organic Coatings, 2014, vol. 77, no 8, p. 1309-1315ca_CA
dc.identifier.issn0300-9440
dc.identifier.urihttp://hdl.handle.net/10234/127705
dc.description.abstractThe addition of organo-modified silica particles (OSP) to organic monolayer coatings has been investigated as an alternative to the use of primers or surface pretreatments in galvanised steel substrates. A commercial additive consisting of trifunctional organosilane (alkyl-triethoxysilane) grafted on silica particles was directly incorporated at different concentrations (1, 2.5, 3.5 and 4.5 wt%) as an integral additive in a polyester powder coating. The OSP were characterised physicochemically by means of FTIR and TGA, and the coating formulated by DSC. The anticorrosive properties of the systems were evaluated by means of electrochemical impedance spectroscopy (EIS), showing improvements with all the formulations containing the OSP, especially in the coating with 2.5% OSP. In order to explain this behaviour, morphological (using SEM) and adhesion studies were done. The formation of agglomerates in the powder coatings was detected when the concentration was over 2.5%. There was an improvement in the adhesion of the coating to the substrate for all the samples containing the OSP but especially for that containing 2.5%. The impact resistance was increased too, especially in the formulations with 2.5% and 3.5%.ca_CA
dc.format.extent7 p.ca_CA
dc.format.mimetypeapplication/pdfca_CA
dc.language.isoengca_CA
dc.publisherElsevierca_CA
dc.relation.isPartOfProgress in Organic Coatings (2014), vol. 77, no. 8, p. 1309-1315ca_CA
dc.rights© Elsevierca_CA
dc.subjectpowder coatingca_CA
dc.subjectcorrosionca_CA
dc.subjectadhesionca_CA
dc.subjectorganosilaneca_CA
dc.subjectmonolayerca_CA
dc.subjectsilicaca_CA
dc.titleAdhesion enhancement of powder coatings on galvanised steel by addition of organo-modified silica particlesca_CA
dc.typeinfo:eu-repo/semantics/articleca_CA
dc.identifier.doihttp://dx.doi.org/10.1016/j.porgcoat.2014.03.017
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccessca_CA
dc.relation.publisherVersionhttp://www.sciencedirect.com/science/article/pii/S0300944014001052#ca_CA


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