Effect of Different Heat Treatment Temperatures on the Chemical Composition and Structure of Chinese Fir Wood

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ID: 94675
2016
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Abstract
The properties of wood can be improved after heat-treatment. There have been many studies dealing with mechanical properties and chemical modifications of heat-treated wood. The purpose of this paper is to provide a new analysis method, to give better insights on the hemicelluloses, cellulose, and lignin contents of heat-treated wood by using Fourier transform infrared (FT-IR) and two-dimensional infrared (2D-IR) spectroscopies. The FT-IR spectra results showed progressive degradation in the carbonyl groups of the glucuronic acid units and degradation of the pyranose of hemicelluloses. These changes were measured as the percentage decrease of crystalline cellulose and the loss of C=O and C=C groups linking together the aromatic skeleton of lignin. The 2D-IR spectra showed the appearance of 5 × 5 peak clusters in the 1000 to 1200 cm-1 region, which could account for the hemicellulose degradation. In addition, changes in the degree of sensitivity at 1627 and 1509 cm-1 coincided with cross-linking reactions among the aromatic units in the lignin molecules.
Reference Key
cheng2016effectbioresources Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Cheng, Shichao;Huang, Anmin;Wang, Shennan;Zhang, Qiuhui;
Journal bioresources
Year 2016
DOI
DOI not found
URL
http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_11_2_4006_Cheng_Different_Heat_Treatment_Temperatures_Fir
Keywords
microscopy Engineering (General). Civil engineering (General) Biotechnology Technology Electrical engineering. Electronics. Nuclear engineering Descriptive and experimental mechanics Mechanical engineering and machinery physics crystallography

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