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林业科学 ›› 2004, Vol. 40 ›› Issue (2): 148-151.doi: 10.11707/j.1001-7488.20040226

• 论文及研究报告 • 上一篇    下一篇

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   

  1. 西南林学院木质科学与装饰工程学院,昆明650224
  • 收稿日期:2002-07-25 修回日期:1900-01-01 出版日期:2004-03-25 发布日期:2004-03-25

Study on Alnus nepalensis Surface Treated by Microwave Plasma with ESR and XPS

Du Guanben,Yang Zhong,Qiu Jian   

  1. Department of Wood Science and Interior Decoration, Southwest Forestry College Kunming650224
  • Received:2002-07-25 Revised:1900-01-01 Online:2004-03-25 Published:2004-03-25

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。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

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 nepalensis ) 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