聚合物微滤膜亲水化研究进展  

PROGRESS IN RESEARCHES ON HYDROPHILIZATION OF MICROFILTRATION MEMBRANE

作　　者：陈刚[1] 林亚凯[1] 王晓琳[1] 张军[2] 

机构地区：[1]清华大学化学工程系,北京100084 [2]南京工业大学材料科学与工程学院,江苏南京210009

出　　处：《水处理技术》2007年第2期4-8,共5页Technology of Water Treatment

基　　金：国家973项目(2003CB615701);北京市教委项目(CXY100030402)

摘　　要：疏水聚合物微滤膜亲水化处理中的低温等离子体、引法剂引发聚合、紫外光、γ-射线以及臭氧等表面处理技术是应用较早且较成熟的膜亲水化方法,此类方法能赋予膜表面良好的亲水性能,但对膜孔壁亲水化效果较差以及亲水稳定性是制约此项技术发展的关键;近几年来,在成膜分子骨架上接枝亲水聚合物的方法不仅能对膜表面和孔壁进行有效亲水化处理,其稳定性也有显著提高,且易实现膜的功能化而得到了广泛的应用。其物理处理法中的共混亲水化改性法是国内外应用较早的亲水化改性方法,但亲水聚合物组分的加入会影响膜结构及其分离性能;向铸膜液中添加无机填料的方法由于亲水性能提高不明显,且会较大的影响膜结构及性能,故此种方法在膜亲水化方面应用较少;而在非溶剂致相分离方法制膜的过程中,添加少量的双亲聚合物可以赋予膜稳定的亲水性能,此种方法简单易行,具有较大应用前景。目前,对于非溶剂致相分离法所制备的膜,其亲水改性方法的研究已较为成熟,但对于热致相分离法所制备的膜亲水化技术仅限于表面处理以及共聚物制膜方面。本文将从这两种亲水化方法对疏水聚合物微滤膜亲水化改性的国内外研究成果进行综述。The hydrophilization of hydrophobic polymeric microfiltration membrane can be divided into physical and chemical approaches. The chemical methods include the process of the membrane surface and the modification of material. The membrane can be hydrophilized by low temperatues plasma, ultraviolet radiation, T-ray and ozone, but its stability needs to be improved. Grafting of hydrophilic polymer to the back-bone of the molecules can not only hydrophilize the surface and pore-wall Successfully but also can functionalize the membrane. The physical method, include blending, addition of amphilic comb and inorganic filling. Blending is commonly used in the modification of membrane, but the performance of the membrane will be often changed. The addition of the amphilic comb polymer can endow stable membrane hydrophilization. ＋At present, the hydrophilization of the membrane prepared via non-solvent induced phase separation has been fully developed, while the hydrophilization of the membrane prepared via thermally induced phase separation is mainly focused on the surface modification and preparation with co-polymers. The paper aims to review the recent progress in these researches at the home and abroad.

关 键 词：聚合物 亲水化改性 微滤膜 进展 

分 类 号：TQ028.8[化学工程]