中文摘要：

利用聚乙烯醇（PVA）和聚乙烯胺（PVAm）的混合溶液，经刮膜、干燥和交联固定化处理，改性廉价涤纶滤布制备复合膜．亲水性PVA的羟基和PVAm的氨基被用来提高复合膜的亲水性和抗污染能力．考察了改性涤纶制备复合膜过程中PVA／PVAm共混比例、交联时间、交联剂用量、涂膜厚度以及涂膜次数对复合膜抗污染性能和渗透通量的影响．结果表明：当优（PVA）：m（PVAm）＝：1：1、交联时间为45min、交联剂质量分数为0．2％、涂膜厚度为100μm且涂膜交联2次制备的复合膜的抗污染性能最好．

英文摘要：

Polyvinyl alcohol （PVA） and polyvinyl amine （PVAm） or polyethylene amine with hydrophilic hydroxyl and/or amine groups, were used to increase the hydrophilic and antifouling properties of thepolyester filter cloth, following the wet-coating/drying, cross-linking and soaking procedures. The pro- portion of PVA to PVAm in coating solution, the thickness of wet-coating and cross-linking time, as well as the content of cross-linking agent in solution were studied to improve the antifouling performance of membranes. The results show that when the ratio of m（ PVA ） ： m（ PVAm ） was 1 ： 1, the thickness of wet-coating on membrane was controlled at 100μm, and the content of cross-linking agent（glutarylalde- hyde ）was 0. 2% , after two rounds coating treatment, the best antifouling composite membrane can be prepared.