微波等离子体处理木材表面光电子能谱分析

Abstract

Abstract:

X-ray photoelectron spectroscopic(XPS)is one of the most effective and sensitive tools for the surface analysis of solid wood.This tool was applied to elucidate the verifying of wood surface treated by microwave phasma in this paper.Plasma treatment decreased C₁(carbon bonded to carbon and/or hydrogen)and increased C₂(carbon bonded to a single oxygen), C₃(carbon bonded to two non-carbonyl oxygen or to acarbony l oxygen)in XPS Cls spectra, and C₄(carbon bonded to a carbonyl and a non-carbonyl oxygen)appeared after plasma treat.This suggested increasing of hydro xyl groups on cellulose and/or lignin by plasma treatment.Appearing of atom N indicated that-NH₂ occurred possibly during treatment.Under the same treatment conditions, oxygen plasma was most effective, followed by air and Nitrogen.On the other side, oxygen plasma treatment presented differences with Nitrogen and air.

Key words: Microw ave plasma, X-ray photoelectron spectroscopy, Wood surface

Guanben Du,Yukun Hua,Yongjie Cui,Zhen Wang. X-RAY PHOTOELECTRON SPECTROSCOPIC (XPS)ANALYSIS OF WOOD SURFACE TREATMENT WITH MICROWAVE PLASMA[J]. Scientia Silvae Sinicae, 1999, 35(5): 104-109.

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X-RAY PHOTOELECTRON SPECTROSCOPIC (XPS)ANALYSIS OF WOOD SURFACE TREATMENT WITH MICROWAVE PLASMA

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