文献类型：期刊文献

中文题名：马来酸酐和甘油复合处理对杨木尺寸稳定性的影响

英文题名：Effects of a Maleic Anhydride and Glycerin Combination Treatment on Dimensional Stability of Poplar Wood

作者：仇洪波[1] 韩雁明[1] 范东斌[1] 李改云[1] 储富祥[1]

第一作者：仇洪波

机构：[1]中国林科院木材工业研究所

年份：2018

卷号：32

期号：1

起止页码：1-5

中文期刊名：木材工业

外文期刊名：China Wood Industry

收录：CSTPCD;;北大核心:【北大核心2017】；

基金：国家重点研发计划“人工林木材材质改良的化学基础研究”(2017YFD0600203).

语种：中文

中文关键词：马来酸酐;甘油;杨木;酯化反应;尺寸稳定性

外文关键词：maleic anhydride; glycerin; poplar wood; esterification reaction; dimensional stability

分类号：S781.6;S792.11

摘要：以马来酸酐和甘油为改性剂处理速生杨木,探究马来酸酐质量分数、预处理温度和时间、酯化温度和时间对改性材尺寸稳定性的影响。结果表明,马来酸酐质量分数100%、预处理温度90℃、预处理时间4h、酯化温度100℃、酯化时间4 h时,改性材的抗体积膨胀率最大;红外光谱分析和扫描电镜观察结果表明,马来酸酐与木材和甘油中的羟基发生了酯化反应,形成酯化物,填充细胞壁孔隙,降低孔隙率,故提高了木材尺寸稳定性。
In this study, maleic anhydride （MA） and glycerin were used as modifiers for treating poplar wood. The effects of maleic anhydride content, reaction temperature and time, as well as esterification temperature and time on the stability of the treated wood were investigated.The results showed that anti-volume swelling efficiency （ASE） of the wood samples reached 91.02% by optimum treatment processes such as 100% maleic anhydride content, below 90℃ reaction temperature for 4 hours and 100℃ of esterification temperature for 4 hours. Esterification between maleic anhydride with hydroxyl groups in both wood and glycerin was verified by FT-IR analysis and SEM observation. Therefore, it was concluded that the maleic anhydride and glycerol reacted with each other in the cell cavity and formed an esterified substance, resulting in reduced porosity and better dimensional stability of the wood samples.