高分子有机膜改性技术研究进展

Research progress in modification of macromolecular organic membranes

综述了接枝共聚、共混、表面活性剂处理等高分子有机膜改性的主要方法及其研究进展。接技共聚和共混法是常用的有机膜改性方法,改性后的膜具有高通量和良好的抗污染性、稳定性以及对环境的适应性;表面活性剂法具有简单易行的优点,但改性后的膜稳定性差。指出今后的研究应针对源水及废水的不同特点,加强现场应用研究,并应加强成膜动力学和热力学等的机理研究。

The advances in researches and main methods of modification of macromulecular organic membrane(graft, blend and surfactant treatment)arc reviewed.Graft and blend are commordy used methods in modifying organic membrane. Higher flux,good anti-pollution,stability and adaptability to environment are characteristics of the modified membrane,but modi- fied membrane has poor stability.For the future,studies should be done according to various traits of source-water and wastewa- ter.Field application research work should be enhanced.Moreover,mechanism researches of membrane formation should be strengthened from the view point of dynamics and thermodynamics.