Study on weathering behavior of jack pine heat-treated under different conditions

dc.contributor.authorKocaefe, Duygu
dc.contributor.authorHuang, X.
dc.contributor.authorKocaefe, Yasar
dc.contributor.authorBoluk, Y.
dc.date.accessioned2015-04-24T11:26:38Z
dc.date.available2015-04-24T11:26:38Z
dc.date.issued2012
dc.description.abstractPaper presented at the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012.en_ZA
dc.description.abstractIt is of considerable importance to investigate the influence of weathering on the degradation processes of heat-treated wood. Kiln-dried (untreated) jack pine (Pinus banksiana) and jack pine heat-treated at three different temperatures (190°C, 200°C, and 210°C) were exposed to artificial weathering for different periods in order to understand the degradation processes due to weathering. Before and after exposure, their color and wettability by water were determined. Structural changes and chemical modifications at exposed surfaces were also investigated using SEM, FTIR spectroscopy, and XPS. The results revealed that the photo-degradation of lignin and the presence of extractives play important roles in color change and wetting behavior of heat-treated wood surfaces during weathering. The structural changes also influence the wettability. The effects of weathering for woods heat-treated under different conditions were similar, but different from those for untreated wood.en_ZA
dc.description.librariandc2014en_ZA
dc.format.extent6 pagesen_ZA
dc.format.mediumPDFen_ZA
dc.identifier.citationKocaefe, D, Huang, X, Kocaefe, Y & Boluk, Y 2012, Study on weathering behavior of jack pine heat-treated under different conditions, Paper presented to the 9th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Malta, 16-18 July, 2012.en_ZA
dc.identifier.isbn9781868549863
dc.identifier.urihttp://hdl.handle.net/2263/44837
dc.language.isoenen_ZA
dc.publisherInternational Conference on Heat Transfer, Fluid Mechanics and Thermodynamicsen_ZA
dc.relation.ispartofHEFAT 2012en_US
dc.rightsUniversity of Pretoriaen_ZA
dc.subjectDegradation processes of heat-treated wooden_ZA
dc.subjectInfluence of weatheringen_ZA
dc.subjectKiln-drieden_ZA
dc.subjectPinus banksianaen_ZA
dc.subjectScanning electron microscopy (SEM)en_ZA
dc.subjectFourier transform infrared spectroscopy (FTIR)en_ZA
dc.subjectX-ray photoelectron spectroscopy (XPS)en_ZA
dc.titleStudy on weathering behavior of jack pine heat-treated under different conditionsen_ZA
dc.typePresentationen_ZA

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