The Research on the Longitudinal Tensile Strength of Tracheids of Brown-rotted Chinese Fir

摘要：

Using Zero-span tensile test technique,measurements of the longitudinal tensile strength of tracheids of brown-rotted Chinese fir were obtained in the present work. The results showed that the longitudinal tensile strength of tracheids reduced with the increase of exposure time. The absolute value of reduced tensile strength was not remarkable because of low degradation efficiency. The FTIR spectroscopy results shows that brown-rot fungus did degraded the cellulose and hemicellulose of Chinese fir,explaining the reduction of tensile strength of tracheids. The intensities of the characteristic aromatic lignin peak at 1512 cm1 was not increased but decreased,which was very strange,hinting the reason of that is not clearly illustrate by the FTIR spectra only.

作者: CHENG Xian-bao ZHAO Rong-jun SHANGGUAN Wei-wei

作者单位: Research Institute of Wood Industry,Chinese Academy of Forestry,Beijing 100091

会议类型: 国际会议

会议名称: 2011 International Conference on Environmental Biotechnology and Materials Engineering(2011年环境生物技术与材料工程国际会议)

会议地点: 哈尔滨

会议语种:英文

页码: 2014-2018

在线出版日期: 2011-03-26（万方平台首次上网日期，不代表论文的发表时间）