文献类型：会议论文

英文题名：The Research on the Longitudinal Tensile Strength of Tracheids of Brown-rotted Chinese Fir

作者：Cheng Xian-bao[1] Zhao Rong-jun[1] Shangguan Wei-wei[1]

第一作者：Cheng Xian-bao

通信作者：Zhao, RJ[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China

会议论文集：International Conference on Environmental Biotechnology and Materials Engineering

会议日期：MAR 26-28, 2011

会议地点：Harbin Univ Commerce, Harbin, PEOPLES R CHINA

主办单位：Harbin Univ Commerce

语种：英文

外文关键词：Zero-span test; longitudinal tensile strength; brown rot; Chinese fir; FTIR

年份：2011

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 cm(-1) was not increased but decreased, which was very strange, hinting the reason of that is not clearly illustrate by the FTIR spectra only.