通过电子扫描电镜、原子力显微镜观察复合膜材料表皮层、多孔支撑层及断面结构。
The asymmetric membrane structure was observed which was composed of surface layer and porous support layer. And composite membrane had more loosen finger-like pore structure.
双凝固浴成膜方法可同时获得较厚的致密表面层和疏松多孔的支撑层。
The dense top layer as well as porous supporting layer can be made by duel-bath coagulation method simultaneously.
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