文献类型：期刊文献

英文题名：Water vapor sorption mechanism of furfurylated wood

作者：Shen, Xiaoshuang[1] Guo, Dengkang[1] Jiang, Pan[1] Yang, Sheng[1] Li, Gaiyun[1] Chu, Fuxiang[1]

第一作者：Shen, Xiaoshuang

通信作者：Yang, S[1];Chu, FX[1]|[a0005bb8448ded70c319b]杨昇;[a0005728d87cb2daf502d]储富祥;

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

年份：2021

卷号：56

期号：19

起止页码：11324-11334

外文期刊名：JOURNAL OF MATERIALS SCIENCE

收录：;EI(收录号：20211410163762);Scopus(收录号：2-s2.0-85103388001);WOS:【SCI-EXPANDED(收录号:WOS:000635073500002)】；

基金：This work was financially supported by the National Key Research and Development Program of China (2017YFD0600202).

语种：英文

外文关键词：Moisture control - Sorption - Wood

摘要：Furfurylation could have a significant influence on wood hygroscopicity. However, moisture sorption and its mechanism of furfurylated wood are not fully understood. The aim of this study was to clarify the effect of furfurylation on sorption behavior and the mechanism of moisture sorption for furfurylated wood. Water vapor sorption isotherms were derived from dynamic vapor sorption apparatus and analyzed employing Hailwood-Horrobin model. Simultaneously, fiber saturation point and accessible hydroxyl groups were determined by NMR cryoporometry and deuterium exchange method, respectively. Results indicated that compared with control sample, furfurylated samples with different weight gain percents (WPGs) exhibited a little difference in reduced equilibrium moisture content (EMCR) throughout RH range. Specifically, an increase below 30% RH and above 60% RH, and a reduction at 30-60% RH in EMCR of the furfurylated samples were showed, when compared with that of control sample. EMCR of 69% WPG displayed no distinguishable difference with that of 23% WPG over the whole RH range. Fiber saturation point increased with enhanced WPGs(.) However, accessible OH groups possessed a reduction with increased WPGs. The hygroscopic mechanism of furfurylated wood was associated with not only accessible OH groups but also other effects. This work could provide valuable guidance to control moisture-related properties of furfurylated wood.