文献类型：期刊文献

英文题名：Dimensional Stability and Mechanical Properties of Plantation Poplar Wood Esterified Using Acetic Anhydride

作者：Chai, Yubo[1] Liu, Junliang[1] Wang, Zhe[1] Zhao, Yong[2]

第一作者：柴宇博

通信作者：Chai, YB[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China;[2]Univ Toronto, Fac Forestry, Toronto, ON M5S 3B3, Canada

年份：2017

卷号：12

期号：1

起止页码：912-922

外文期刊名：BIORESOURCES

收录：;EI(收录号：20210509843755);Scopus(收录号：2-s2.0-85054394034);WOS:【SCI-EXPANDED(收录号:WOS:000397065200065)】；

基金：This work was financially supported by the Fundamental Research Funds of the Central Public Welfare Institutes, Chinese Academy of Forestry (CAFYBB2014QAO18).

语种：英文

外文关键词：Acetylation; Dimensional stability; Acetic anhydride; Plantation poplar wood

摘要：Plantation poplar ( Populus ussuriensis) wood was esterified using acetic anhydride without catalysts to improve its dimensional stability. The effects of acetylation temperature ( 100 degrees C, 120 degrees C, and 140 degrees C) on the dimensional stability, mechanical properties, microstructure, and functional groups of the resulting acetylated wood were systematically investigated. Results showed that the wood acetylated at 100 degrees C and 120 degrees C had an improved dimensional stability and comparable mechanical properties to those of the control wood. Wood acetylated at 140 degrees C had an improved dimensional stability and decreased mechanical properties as compared to those of the control wood. Scanning electron microscopic ( SEM) analysis showed that the wood acetylated at 140 degrees C had obviously different microstructures than the control wood and the wood acetylated at 100 degrees C and 120 degrees C. The changes of functional groups in the acetylated wood were revealed by Fourier transform infrared spectroscopy ( FTIR). The -OH groups of cellulose, hemicellulose, and lignin all were shown to participate in the acetylation reaction.