HuangKocaefeKocaefeEtAl2013

Référence

Huang, X., Kocaefe, D., Kocaefe, Y., Boluk, Y., Krause, C. (2013) Structural analysis of heat-treated birch (Betule papyrifera) surface during artificial weathering. Applied Surface Science, 264:117-127. (URL )

Résumé

Effect of artificial weathering on the surface structural changes of birch (Betule papyrifera) wood, heat-treated to different temperatures, was studied using the fluorescence microscopy and the scanning electron microscopy (SEM). Changes in the chemical structure of wood components were analyzed by FTIR in order to understand the mechanism of degradation taking place due to heat treatment and artificial weathering. The results are compared with those of the untreated (kiln-dried) birch. The SEM analysis results show that the effect of weathering on the cell wall of the untreated birch surface is more than that of heat-treated samples. The FTIR spectroscopy results indicate that lignin is the most sensitive component of heat-treated birch to the weathering degradation process. Elimination of the amorphous and highly crystallised cellulose is observed for both heat-treated and untreated wood during weathering. It is also observed that heat treatment increases the lignin and crystallised cellulose contents, which to some extent protects heat-treated birch against degradation due to weathering.

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@ARTICLE { HuangKocaefeKocaefeEtAl2013,
    AUTHOR = { Huang, X. and Kocaefe, D. and Kocaefe, Y. and Boluk, Y. and Krause, C. },
    TITLE = { Structural analysis of heat-treated birch (Betule papyrifera) surface during artificial weathering },
    JOURNAL = { Applied Surface Science },
    YEAR = { 2013 },
    VOLUME = { 264 },
    PAGES = { 117-127 },
    ABSTRACT = { Effect of artificial weathering on the surface structural changes of birch (Betule papyrifera) wood, heat-treated to different temperatures, was studied using the fluorescence microscopy and the scanning electron microscopy (SEM). Changes in the chemical structure of wood components were analyzed by FTIR in order to understand the mechanism of degradation taking place due to heat treatment and artificial weathering. The results are compared with those of the untreated (kiln-dried) birch. The SEM analysis results show that the effect of weathering on the cell wall of the untreated birch surface is more than that of heat-treated samples. The FTIR spectroscopy results indicate that lignin is the most sensitive component of heat-treated birch to the weathering degradation process. Elimination of the amorphous and highly crystallised cellulose is observed for both heat-treated and untreated wood during weathering. It is also observed that heat treatment increases the lignin and crystallised cellulose contents, which to some extent protects heat-treated birch against degradation due to weathering. },
    DOI = { 10.1016/j.apsusc.2012.09.137 },
    ISSN = { 0169-4332 },
    KEYWORDS = { Heat-treated wood; Artificial weathering; FTIR; Wood chemical component; SEM; Structural change },
    OWNER = { amriv2 },
    TIMESTAMP = { 2013.01.10 },
    URL = { http://www.sciencedirect.com/science/article/pii/S0169433212016819 },
}

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