超滤膜改性国内外研究状况

Modified Ultrafiltration Research Progress in China and Abroad

超滤是一种超滤过程因无相变,分离系数大,操作温度在室温上下,操作简便和设备较简单等特点,在科研及生活领域已获得广泛应用。但是现存商业用超滤膜存在通量低,易污染等缺点,需要对其进行改性。本文介绍了当前国内外使用比较广泛的两种方法共混改性及表面改性。

Ultrafiltration had a lot of advantages,such as no phase change,separation coefficient,operating temperature at about room temperature,and easy operation and equipment,therefore,it can be widely used in the areas of research and life.However,nowadays the commercial membrane was in low quantity,easy to be polluted and had other shortcomings,which should be modified.The more extensive use of blending modification and surface modification methods both in China and abroad were described.