微波等离子体处理西南桤木表面的ESR 和XPS 分析.pdf

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第 40 卷第 2 期林业科学 Vol. 40 , No. 2
2 0 0 4 年 3 月 SCIENTIA SILVAE SINICAE Mar. , 2 0 0 4
微波等离子体处理西南桤木表面的 ESR 和 XPS 分析
杜官本杨忠邱坚
(西南林学院木质科学与装饰工程学院昆明 650224)
摘要: 采用电子顺磁共振波谱( ESR) 和 X 射线光电子能谱(XPS) 技术,分析了微波等离子体处理前后西南桤木
木材表面的性质。ESR 图谱分析表明:经过微波等离子体处理后,木材表面可迅速有效地产生大量的自由基; XPS
图谱分析表明:微波等离子体处理使木材表面 O C 原子比增加,C1 含量降低,而 C2 、C3 含量增加,并有 C4 的出现。
3这些结果表明经微波等离子体处理后木材表面产生了大量的含氧官能团或过氧化物。
关键词: 微波等离子体, 木材表面, 电子顺磁共振波谱, X 射线光电子能谱
中图分类号:S781 4 文献标识码:A 文章编号:1001 - 7488(2004) 02 - 0148 - 04
Study on Alnus nepalensis Surface Treated by Microwave Plasma with ESR and XPS
Du Guanben Yang Zhong Qiu Jian
( Department of Wood Science and Interior Decoration , Southwest Forestry College Kunming650224)
Abstract : Electron Spin Resonance ( ESR) and X - ray Photoelectron Spectroscopy (XPS) were used to determine the surface
properties of untreated treated wood in this paper. The spectra of ESR showed that a great deal of free radicals on ( Alnus ne
palensis ) surface could be generated by MWP treatment ; XPS spectra showed that : microwave plasma treatment increased the O
C atomic ratio of the wood surface , decreased C1 , increased C2 and C3 , and generated C4 These results suggesting that a great
deal of oxygen content groups or peroxides were generated on wood surface after MWP treatment.
Key words : Microwave plasma , Wood surface , ESR , XPS
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