Analysis of the Compositions on PET Surface Layer Modified by Fluorocarbon Plasmas with Angle-dependent XPS Technique

Chem. J. Chinese Universities ›› 1999, Vol. 20 ›› Issue (10): 1605.

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Analysis of the Compositions on PET Surface Layer Modified by Fluorocarbon Plasmas with Angle-dependent XPS Technique

ZHANG Liang¹, MAO Kun-Yuan², ZHANG Xin-Sheng³, WANG Jian-Qi⁴

1. Department of chemistry, National University of singapoere, 10 Kent Ridge Crescent, Singapore 119260;
2. Beijing Representative Office, Nicolet Insrtument Corporation, Beijin 100020;
3. Beijing Education College at Xuanwu District, Beijing 100050, China;
4. School of Chemical Engineering & Materials Science, Beijing Institute of Technology, Beijing 100081, China

Received:1998-11-23 Online:1999-10-24 Published:1999-10-24

Abstract

Abstract: The surface of PET was modified by fluorocarbon plasmas.Angle-dependent XPS technique was employed to study the surface structure and compositions of the modified layer on PET surface. It was found that the homogeneous, cross-linking modified layer on PET surface can be formed by CH₄/CF₄plasmas, and their composition change a bit with the increase of the sampling depth of XPS. However, for pure CF₄plasma, the modified layer is heterogeneous, and the amount of the fluorine-containing groups on the outmost modified layers is more than that in the inner layer. The structures of the modified layer on the modified PETsurface depend on the molar amount of CH₄The relationship between the compositions of the modified layers and the sampling depth will be discussed in details in this paper.

Key words: CH₄/CF₄plasmas, PET, Angle-dependent XPS, Surface modification, Depth analysis

CLC Number:

O647.1

TrendMD:

ZHANG Liang, MAO Kun-Yuan, ZHANG Xin-Sheng, WANG Jian-Qi . Analysis of the Compositions on PET Surface Layer Modified by Fluorocarbon Plasmas with Angle-dependent XPS Technique[J]. Chem. J. Chinese Universities, 1999, 20(10): 1605.

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Analysis of the Compositions on PET Surface Layer Modified by Fluorocarbon Plasmas with Angle-dependent XPS Technique

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