选用聚乙烯醇、水、乙酸、硫酸铁等为原料,用相转化法制备了亲水性超滤膜.在一定范围内研究了各种不同浓度的膜液组成对超滤膜性能的影响,确定了较佳的铸膜液组成(质量分数)为:8%PVA,6%乙酸,1.5%～2%硫酸铁.用此铸膜液制备的超滤膜,在操作压力为0.30～0.45*!MPa下,处理浓度为1*!000*!mg*L-1的O/W型乳化液,透液速率可达43*!L/(m2*h)以上,其除油率可达92%以上.研究还表明,PVA超滤膜中添加适量硫酸铁,可改善膜的结构和耐水性能.
参考文献
| [1] | 吴秋林;吴照和 .PVA-PE复合亲水分相膜的研制[J].膜科学与技术,1995,15(04):29-44. |
| [2] | 李娜;刘忠洲;续曙光 .耐污染膜-聚乙烯醇膜的研究进展[J].膜科学与技术,1999,19(03):1-7. |
| [3] | KATZ M G;Wydeven T .Selective permeability of PVA membranes. Ⅱ. Heat treated membranes[J].Journal of Applied Polymer Science,1982,27(01):79-87. |
| [4] | MU-HOE Y;TZONG-JENG C .The effect of skin layer composition and operating parameters on the performance of sulfonated polysulfone-poly(vinyl alcohol)composite reverse osmosis membrane[J].Separation Science and Technology,1993,28(06):1315-1325. |
| [5] | Lang K;Mtsuura T;Chowdhury G et al.Preparation and testing of polyvinyl alcohol composite membrans or reverse osmosis[J].Canadian Journal of Chemical Engineering,1995,73(05):686-691. |
| [6] | Wang Q.;Huang JG.;He LY. .SUPERMOLECULAR STRUCTURE AND MECHANICAL PROPERTIES OF P(AN-AM-AA)/PVA INTERMACROMOLECULAR COMPLEX FORMED THROUGH HYDROGEN BONDING[J].Journal of Applied Polymer Science,1997(11):2089-2096. |
| [7] | 刘茉娥;李学梅;吴礼光.膜分离技术[M].北京:化学工业出版社,1998:26-33. |
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