Effects of removal of extractives on the chemical composition and mechanical properties of wood
Effects of removal of extractives on the chemical composition and mechanical properties of wood
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去除提取物对木材化学成分和力学性能的影响
DOI：
10.15376/biores.15.4.8631-8647
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发表时间：
2020-09
期刊：
影响因子：
1.5
通讯作者：
Xue Z
中科院分区：
文献类型：
--
作者：
Zhao D;Yu H;Bao X;Liu J;Yuan H;Wang Y;Xue Z
用水、1% NaOH (wt%) 溶液和苯:乙醇溶液（V1:V2, 2:1）提取杨木和松木，研究提取物影响木材结构和力学性能的控制因素和机制。分别通过傅里叶变换红外光谱(FTIR)、氮气吸附、X射线衍射(XRD)和力学测试分析了样品的结构、孔隙分布、晶体结构和力学性能。结果表明，纤维素、半纤维素和木质素在提取物溶解过程中均发生了一定程度的降解。这种降解对孔隙的结构和数量产生了很大的影响。提取处理并没有改变木材的结晶类型，但增加了木材的结晶度，结晶区域的长度和宽度发生变化。此外，当提取物含量降低时，木材的机械性能发生变化。
Poplar and pine wood were extracted with water, 1% NaOH (wt%) solution, and benzene:ethanol solution (V1 : V2, 2 : 1) to investigate the governing factors and mechanism by which extractives affect wood structure and mechanical properties. The structure, pore distribution, crystal structure, and mechanical properties of samples were analyzed by Fourier transform infrared spectroscopy (FTIR), adsorption of N2 gas, X-ray diffraction (XRD), and mechanical testing, respectively. The results demonstrated that cellulose, hemicellulose, and lignin were degraded to some extent in the course of the dissolution of the extractives. This degradation had a great influence on the structure and quantity of pores. The extraction treatment did not change the crystallization type of the wood, but it increased the crystallinity of the wood, and the length and width of the crystallization area changed. In addition, the mechanical properties of wood were changed when the content of the extractives was reduced.
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DOI：
10.4028/www.scientific.net/amm.157-158.1624
发表时间：
2012-02
期刊：
Applied Mechanics and Materials
影响因子：
--
作者：
Zhong Yang;Ya Na Liu;B. Lv;Xuedan Xie
通讯作者：
Zhong Yang;Ya Na Liu;B. Lv;Xuedan Xie
影响因子：
1.5
作者：
Zhengbin He;Zhengyu Wang;Lijie Qu;Jing Qian;Song-lin Yi
通讯作者：
Zhengbin He;Zhengyu Wang;Lijie Qu;Jing Qian;Song-lin Yi
影响因子：
11.4
作者：
Haiqiang Shi;Miaofang Zhou;Chao Li;X. Sheng;Qian Yang;Na Li;Meihong Niu
通讯作者：
Haiqiang Shi;Miaofang Zhou;Chao Li;X. Sheng;Qian Yang;Na Li;Meihong Niu
影响因子：
1.3
作者：
B. Doczekalska;M. Zborowska
通讯作者：
B. Doczekalska;M. Zborowska
DOI：
10.1080/03067310903410949
发表时间：
2010-04
影响因子：
2.6
作者：
F. Tao;Y. Liu;Ning An
通讯作者：
F. Tao;Y. Liu;Ning An