EFFECTS OF ARTIFICIAL WEATHERING ON THE SURFACE PROPERTIES OF COATED RADIATA PINE

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dc.authoridEsteves, Bruno/0000-0001-6660-3128
dc.authoridDomingos, idalina/0000-0002-4308-1563
dc.contributor.authorSahin, Sirri
dc.contributor.authorEsteves, Bruno
dc.contributor.authorCan, Ahmet
dc.contributor.authorSivrikaya, Huseyin
dc.contributor.authorDomingos, Idalina
dc.contributor.authorFerreira, Jose
dc.contributor.authorAyata, Umit
dc.date.accessioned2024-10-04T18:49:37Z
dc.date.available2024-10-04T18:49:37Z
dc.date.issued2023
dc.departmentBayburt Üniversitesien_US
dc.description.abstractRadiata pine boards were coated with two different methods A and B both beginning with a hydro primer and finishing with a mat oil but method A using an acrylic high gloss coating and method B three layers of an acrylic sealer in between. The samples were subjected to aging processes for 144 h, 288 h, and 432 h by using UV-A 340 nm lamps. The CIE L*a*b* and CIE L*C*H* coordinates were determined (L*, a*, b*, C*, h(o)*, Delta E*), gloss (perpendicular (perpendicular to) and parallel (//) to the grain at 20 degrees, 60 degrees, and 85 degrees angles) and surface adhesion strength via the pull-off method were tested before and after weathering. Results have shown that lightness (L*), decreases with weathering for both varnish applications with a higher decrease for the B coating system. Redness increased for both applications with no significant differences. At the same time there was a yellowing of the samples along the weathering period. Parallel and perpendicular gloss decreased for 20 degrees and 60 degrees angles while it increased for 85 degrees angle. The adhesion strength of method A was higher and its decrease with weathering was smaller than for method B. Both varnish applications have proven to confer some protection against wood discoloration, but method A showed the best results and is therefore the best method to be used by radiata pine.en_US
dc.description.sponsorshipFCT - Foundation for Science and Technology, I.P., through CERNAS Research Centre [UIDB/00681/2020]en_US
dc.description.sponsorshipThe authors thank the KPS factory in Duzce, Turkiye for UV varnish applications. This work was funded by FCT - Foundation for Science and Technology, I.P., through CERNAS Research Centre, within the scope of the project Ref UIDB/00681/2020.en_US
dc.identifier.doi10.4067/s0718-221x2023000100429
dc.identifier.issn0717-3644
dc.identifier.issn0718-221X
dc.identifier.scopus2-s2.0-85168603099en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.4067/s0718-221x2023000100429
dc.identifier.urihttp://hdl.handle.net/20.500.12403/3235
dc.identifier.volume25en_US
dc.identifier.wosWOS:001089459100003en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherUniv Bio-Bioen_US
dc.relation.ispartofMaderas-Ciencia Y Tecnologiaen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectArtificial weatheringen_US
dc.subjectcoloren_US
dc.subjectglossinessen_US
dc.subjectPinus radiataen_US
dc.subjectvarnish applicationsen_US
dc.subjectwood discolorationen_US
dc.titleEFFECTS OF ARTIFICIAL WEATHERING ON THE SURFACE PROPERTIES OF COATED RADIATA PINEen_US
dc.typeArticleen_US

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