摘要
丁腈橡胶表面经ＸｅＦ２处理后，介质性能有显著的提高，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．
Remarkable improvement of some properties(e.g. oil resistant, friction coefficient) of nitrilebutadiene 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.
出处
《应用化学》
CAS
CSCD
北大核心
1997年第5期51-54,共4页
Chinese Journal of Applied Chemistry
关键词
丁腈橡胶
氟化
表面改性
改性
nitrilebutadiene rubber,fluorination,surface modification
