The Effect of Weathering on Color and Glossiness Properties of Polyurethane-Modified Water-Based Varnish Layers Applied to Thermally Treated Ash Wood

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dc.contributor.authorUlay, Goksel
dc.contributor.authorAkter, Mete
dc.contributor.authorÇakicier, Nevzat
dc.contributor.authorPeker, Hüseyin
dc.contributor.authorAyata, Ümit
dc.contributor.authorAtilgan, Abdi
dc.contributor.authorÇiftçi, Seymen
dc.date.accessioned2025-10-11T20:45:25Z
dc.date.available2025-10-11T20:45:25Z
dc.date.issued2025
dc.departmentDüzce Üniversitesien_US
dc.description.abstractThe effects of artificial weathering (168, 336, and 504 h) on the glossiness values and color parameters of varnished, polyurethane-modified ash wood were investigated. Samples included control samples without treatment and thermally treated samples under two different conditions (190 °C for 1.5 h and 212 °C for 2 h), all coated with a polyurethane-modified water-based varnish. In non-thermally treated and varnished samples, decreases in L* values were observed after weathering, while increases were noted in ho, C*, b*, and glossiness at 60° in both perpendicular and parallel directions to the fibers. After weathering, for samples thermally treated at 190 °C for 1.5 h and varnished, increases were observed in glossiness values at 20° and 60° in both directions, as well as in L*, b*, and ho values. Conversely, decreases were noted in a* and C* values. In samples thermally treated at 212 °C for 2 h and varnished, increases in a*, L*, ho, b*, and C* values were detected after weathering, whereas decreases were observed in glossiness at all angles (20° and 60°) in both directions. The ∆E* values showed a decreasing trend in non-thermally treated varnished samples after weathering, while an increase was observed in samples thermally treated at 212 °C for 2 h and varnished. © 2025 Elsevier B.V., All rights reserved.en_US
dc.identifier.doi10.15376/biores.20.3.7555-7573
dc.identifier.endpage7573en_US
dc.identifier.issn1930-2126
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-105012444482en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage7555en_US
dc.identifier.urihttps://doi.org/10.15376/biores.20.3.7555-7573
dc.identifier.urihttps://hdl.handle.net/20.500.12684/21349
dc.identifier.volume20en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherNorth Carolina State Universityen_US
dc.relation.ispartofBioResourcesen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.snmzKA_Scopus_20250911
dc.subjectArtificial Weatheringen_US
dc.subjectAsh Wooden_US
dc.subjectColoren_US
dc.subjectGlossinessen_US
dc.subjectWater Based Varnishen_US
dc.subjectVarnishen_US
dc.subjectWater Treatmenten_US
dc.subjectWeatheringen_US
dc.subjectWooden_US
dc.subjectArtificial Weatheringen_US
dc.subjectAsh Wooden_US
dc.subjectC Valuesen_US
dc.subjectColor Parameteren_US
dc.subjectGlossinessen_US
dc.subjectPolyurethane Modifieden_US
dc.subjectPropertyen_US
dc.subjectValues Parametersen_US
dc.subjectWater Baseden_US
dc.subjectWater Based Varnishen_US
dc.subjectColoren_US
dc.subjectAshen_US
dc.subjectControl Systemsen_US
dc.subjectSamplesen_US
dc.subjectWater Treatmenten_US
dc.titleThe Effect of Weathering on Color and Glossiness Properties of Polyurethane-Modified Water-Based Varnish Layers Applied to Thermally Treated Ash Wooden_US
dc.typeArticleen_US

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