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dc.contributor.authorMATTOS, B. D.pt_BR
dc.contributor.authorMISSIO, A. L.pt_BR
dc.contributor.authorCADEMARTORI, P. H. G. dept_BR
dc.contributor.authorGATTO, D. A.pt_BR
dc.contributor.authorMAGALHAES, W. L. E.pt_BR
dc.date.accessioned2016-04-11T11:11:11Zpt_BR
dc.date.available2016-04-11T11:11:11Zpt_BR
dc.date.created2016-04-11pt_BR
dc.date.issued2016pt_BR
dc.identifier.citationMaderas. Ciencia y tecnología, Concepción, v. 18, n. 1, p. 113-124, ene. 2016.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1043030pt_BR
dc.descriptionThe aim of this study was to evaluate the colorimetric properties of Pinus taeda and Schizolobium parahybum woods treated by in situ polymerization. The wood samples were impregnated in a vacuum/ pressure system and polymerized in an oven at 90°C for 10h, using benzoyl peroxide at 1,5wt% as the catalyst. The treatments were characterized using attenuated total reflectance infrared (ATRIR) spectroscopy and weight percentage gain (WPG). The color evaluation was performed using CIEL*a*b* concepts, specular gloss, and UV-Visible spectrophotometry. Treated woods showed increases in band intensity related to polymers (1730, 1460 and 1145 cm-1), and WPG ranged from 39 to 164%, depending of the wood species and treatments. Lightness decreased, while the Chroma, gloss and the color coordinates increased. A darkening of the all treated samples was observed, and confirmed by the decrease in the reflectance intensity between 400 and 700 nm.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectSchizolobium parahybumpt_BR
dc.subjectEspécie exóticapt_BR
dc.subjectFree radical polymerizationpt_BR
dc.subjectUV-Vispt_BR
dc.subjectHeat catalystpt_BR
dc.subjectComposites (materials)pt_BR
dc.titleColor changes of wood from Pinus taeda and Schizolobium parahybum treated by in situ polymerization of methyl methacrylate using cross-linkers.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2017-07-10T11:11:11Zpt_BR
dc.subject.thesagroMadeirapt_BR
dc.subject.thesagroTratamentopt_BR
dc.subject.thesagroEspécie nativapt_BR
dc.subject.thesagroPinus Taedapt_BR
dc.subject.nalthesaurusWood treatmentpt_BR
dc.subject.nalthesaurusPolymerspt_BR
riaa.ainfo.id1043030pt_BR
riaa.ainfo.lastupdate2017-07-10pt_BR
dc.identifier.doi10.4067/S0718-221X2016005000012pt_BR
dc.contributor.institutionBruno D. Mattos, Integrated program in Engineering & Materials Science (PIPE), UFPR; André L. Missio, Forestry Engineering (PPGEF), UFSM; Pedro H. G. de Cademartori, Wood and Forestry Science Center (PPGEF), UFPR; Darci A. Gatto, Professor da UFSM; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF.pt_BR
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