Paper Title:
Chemical and Physical Changes for Dimensionally Stability of Compressed Wood
  Abstract

The objective of this study was to determine the chemical and physical changes of chemical modified on poplar wood. The chemical modifier was impregnated into cell lumen space by pulse-dipping machine to improve the dimension stability and mechanical property of timber. The timbers were compressed and dried by the multilayer hot-press drying to produce the modified timber. The modified timber had better dimension stability than the natural wood when they were immerged water continuous eight-hour. Characteristics of Fourier Transform Infrared Spectroscopy (FTIR) for modified were studied by the FTIR spectrometer. The intensity of hydroxyl absorption peak in the infrared absorption spectrogram decreased significantly, and that of carbonyl decreased lightly, which due to the bond of the function groups of -NHCH2OH of urea-formaldehyde prepolymer react with the wood carboxyl (C=O) and hydroxyl(-OH). The morphologic models of chemical within wood were discovered by SEM.

  Info
Periodical
Advanced Materials Research (Volumes 129-131)
Edited by
Xie Yi and Li Mi
Pages
46-49
DOI
10.4028/www.scientific.net/AMR.129-131.46
Citation
G. F. Wu, Y. F. Jiang, H. Zhang, B. Wang, H. Y. Chen, J. W. Pu, "Chemical and Physical Changes for Dimensionally Stability of Compressed Wood", Advanced Materials Research, Vols. 129-131, pp. 46-49, 2010
Online since
August 2010
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Price
$32.00
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