文献类型：会议论文

英文题名：Effect of Heat Treatment on Decay Resistance of Chinese Fir and Pine

作者：Li, Yanjun[1] Du, Lanxing[1] Hu, Gouying[1] Ma, Xingxia[2]

第一作者：Li, Yanjun

通信作者：Li, YJ[1]

机构：[1]Zhejiang Agr & Forestry Univ, Sch Engn, Hangzhou 311300, Zhejiang, Peoples R China;[2]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China

会议论文集：3rd International Conference on Manufacturing Science and Engineering (ICMSE 2012)

会议日期：MAR 27-29, 2012

会议地点：Xiamen, PEOPLES R CHINA

语种：英文

外文关键词：heat treatment; chemical composition; decay resistance

年份：2012

摘要：To enhance decay resistance, the effect of heat treatment and the variation of chemical composition on Chinese Fir and Pine were investigated in this study - heat treatment temperature was 170 degrees C, 190 degrees C and 210 degrees C, respectively, heat treatment time was 2, 3 and 4hours, respectively. Both of them were subsequently exposed to white-rot fungus and brown-rot fungus. The results showed that:(1) With the increasing of the heat treatment, decay resistance of Chinese Fir and Pine were improved, anti-corrosion of Pine after being heat treated at 190 degrees C which were exposed to write-rot fungus can reach I, anti-corrosion of Chinese Fir after being heat treated at 170 degrees C treated which were exposed to brown-rot fungus could reach I yet, After being heat treated at 210 degrees C for 3 hours, the Chinese fir samples had no measurable weight loss when exposed to the write-rot fungus.(2) There was no remarkable influence on both Chinese Fir and Pine by heat treatment time.(3) The moisture content of Chinese Fir and Pine were lower than the moisture content that the rot fungus need, macromolecule chains such as cellulose and hemicellulose broke down, their contents decreased, and the hemicellulose decomposed into acetic acid, they prevented the growth of rot fungus.