Effect of Bleaching on Hardness, Gloss, and Color Change of Weathered Woods

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dc.contributor.authorBudakçı, Mehmet
dc.contributor.authorKaramanoğlu, Mehmet
dc.date.accessioned2020-05-01T09:11:36Z
dc.date.available2020-05-01T09:11:36Z
dc.date.issued2014
dc.departmentDÜ, Teknoloji Fakültesi, Ağaç İşleri Endüstri Mühendisliği Bölümüen_US
dc.descriptionWOS: 000336960700039en_US
dc.description.abstractThe aim of this study was to eliminate the problems of hardness, gloss, and color change of some wood materials exposed to weathering conditions using a bleaching procedure to attempt to return the wood material to its natural state. For this, wood samples of Scots pine (Pinus sylvestris L.), Eastern beech (Fagus orientalis L.), sessile oak (Quercus petraea L.), and chestnut (Castanea sativa Mill.) were exposed to weathering conditions based on 12 months ASTM D-1641, followed by a bleaching procedure using 18% solutions of S1 (NaOH + H2O2), S2 (NaOH + Ca(OH)(2)), S3 (KMnO4 + NaHSO3 + H2O2), S4 (NaSiO3 + H2O2), and the commercial product S5 (Cuprinol Decking Restorer-(H2C2O4 + C2H4(OH)(2)). The color, gloss, and hardness changes of samples were determined according to ASTM D 2244-2, EN ISO 2813, and ASTM D 2240 standards. As a result, hardness and gloss values of all woods decreased due to weathering conditions and the wood color turned grey due to degradation. When comparing the weathered samples to the bleached samples, the hardness value was found to be highest in pine wood bleached with the S2 solution, and the gloss value was highest in oak wood bleached with the S1 solution. The greatest color change was found in pine, beech, and chestnut samples bleached with the S4 solution and in oak samples bleached with the S1 solution.en_US
dc.identifier.endpage2327en_US
dc.identifier.issn1930-2126
dc.identifier.issue2en_US
dc.identifier.startpage2311en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12684/5683
dc.identifier.volume9en_US
dc.identifier.wosWOS:000336960700039en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherNorth Carolina State Univ Dept Wood & Paper Scien_US
dc.relation.ispartofBioresourcesen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectWood materialen_US
dc.subjectWeathering conditionsen_US
dc.subjectBleaching procedureen_US
dc.subjectHardnessen_US
dc.subjectGlossen_US
dc.subjectColoren_US
dc.titleEffect of Bleaching on Hardness, Gloss, and Color Change of Weathered Woodsen_US
dc.typeArticleen_US

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