Surface of blended fiber had porous structure after acid treatment.
经酸处理后共混纤维表面存在多孔结构。
The powder had porous structure by means of the mixture solvent of alcohol and calcium chloride.
以乙醇 氯化钙混合溶剂制备的粉末内部具有多孔结构；
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.
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。
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