在不同氟化温度和时间的条件下,对聚乙烯材料表面进行氟化,采用扫描电镜和X 射线能谱仪对表面氟化层的厚度、均匀性及表面氟含量进行了分析。结果表明:聚乙烯材料氟化层越厚,表面越不均匀,表面平滑性越差;随着温度的提高和时间的延长,氟化层表面氟含量增加,但温度提高时,氟含量增加很少,这与氟化层增厚抑制氟化反应有关。

The surface of polyethylene material was fluorinated under different fluorination temperature and time, the scanning electron microscopy and X-ray energy dispersive spectrometer were adopted to analyze thickness, smoothness and fluorine content of polyethylene material’s surface fluorinated layer. Its results show that the thicker fluorinated layer of polyethylene material, the more non-uniform surface and the surface’s smoothness is worse. With the increasing of temperature and time, the surface’s fluorine content of fluorinated layer is increasing, but when temperature is enhanced, the fluorine content increases only a few, it relates with the thickening of fluorinated layer, which inhibit the fluoridation.