| 摘要: |
| 针对食品加工超滤过程中的膜污染问题 ,采用丙烯酸、Tween20和十二烷基硫酸钠 3种物质对聚砜中空纤维膜进行了表面改性的试验研究 ,通过回归方程得出了最优处理条件 ,优化工作条件下所得毛细上升质量及回归方程计算结果表明 ,对于用作果汁澄清处理的聚砜中空纤维膜 ,以十二烷基硫酸钠对其的改性效果最好。 |
| 关键词: 膜污染,表面改性,中空纤维 |
| DOI： |
| 分类号:TS207.7 |
| 基金项目:陕西省科委资助项目(97K05-G5) |
|
| A study on surface modification of polysulphone hollow-fiber ultra-filtration membrane |
|
L and J,L and J
|
| Abstract: |
| Three kinds of surfactants (Acrylic acid,Tween20,S.D.S) were applied to modify the surface of polysulphone hollow-fiber membrane.The results indicated that these surfactants could improve hydrophilicity.The regression model was established and the capillary ascending quantity obtained under an optimum working condition.The result counted by a regression equation showed that the modified effect of surface of polysulphone hollow-fiber membrane,as a clearing treatment membrane to fruit juice.S.D.S was most effective. |
| Key words: membrane-fouling,surface-modification,hollow-fiber |
