中华医学超声杂志

应用化学 ›› 1997, Vol. 0 ›› Issue (5): 51-54.

• 研究论文 • 上一篇    下一篇

丁腈橡胶的XeF2表面氟化改性研究

王斌, 王德贵, 陆兆达   

  1. 西北核技术研究所, 西安 710024
  • 收稿日期:1996-11-06 修回日期:1997-06-11 出版日期:1997-10-10 发布日期:1997-10-10

Surface Modification of Nitrile Butadiene Rubber by Fluorination with XeF2

Wang Bin, Wang Degui, Lu Zhaoda   

  1. Northwest Institute of Nuclear Technology, Xi'an 710024
  • Received:1996-11-06 Revised:1997-06-11 Published:1997-10-10 Online:1997-10-10

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摘要： 丁腈橡胶表面经XeF2处理后,介质性能有显着的提高,摩擦系数降低6～8倍。用XPS法研究了氟化处理的丁腈橡胶表面结构,并用曲线拟合分峰技术对C1s谱进行数学处理。结果表明,随着氟化时间延长,橡胶表面氢被氟取代逐步生成-CH2-CHF-CH2-、-CHF-CH2-CHF-和-CHF-CHF-CHF-等。SEM照片显示氟化膜厚度可达8～9μm.

关键词: 丁腈橡胶, 氟化, 表面改性

Abstract: Remarkable improvement of some properties(e.g. oil resistant, friction coefficient)of nitrile butadiene rubber(NBR)was observed after surface fluorination by XeF2. The surface structure of the fluorinated NBR has been studied by XPS and the carbon 1S peaks have been measured mathematically by curve fitting technique. The results showed that with the increase of fluorinating time the H atoms on the surface of NBR are substituted by F atoms, resulting gradually —CH2—CHF—CH2— 、 —CHF—CH2—CHF— and —CHF—CHF—CHF— groups. The SEM photographs showed about 8～9 μm thickness of the fluorinated surface of NBR.

Key words: nitrile-butadiene rubber, fluorination, surface modification

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