| 超高分子量聚乙烯微孔膜的亲水改性研究(Ⅱ)改性UHMWPE微孔滤膜的性质及其过滤性能 |
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| 引用本文： | 郭红霞,王平,陈翠仙,李继定.超高分子量聚乙烯微孔膜的亲水改性研究(Ⅱ)改性UHMWPE微孔滤膜的性质及其过滤性能[J].膜科学与技术,2006,26(2):6-9. |
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| 作者姓名： | 郭红霞 王平 陈翠仙 李继定 |
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| 作者单位： | 清华大学,化学工程系,北京,100084 |
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| 基金项目： | 北京市科技合同项目;中国博士后科学基金 |
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| 摘 要： | 研究了UHMWPE微孔膜接枝HEMA和MAA后的水蒸气吸附特性、蛋白质吸附性能及其膜的过滤性能随着接枝率的变化.结果表明,膜的接枝率增大时,其BSA蛋白质吸附量降低;在一定范围内时,膜的去离子水和蛋白质溶液通量随接枝率的增大而提高,但接枝率过大时,其通量有所下降;其BSA溶液通量恢复率研究表明,改性膜比未改性膜显示较大的通量恢复,清洗后其通量恢复率可达80%以上,改性膜具有较高的抗蛋白质污染能力.
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| 关 键 词： | UHMWPE微孔膜 通量 BSA吸附 过滤性能 |
| 文章编号： | 1007-8924(2006)02-0006-03 |
| 修稿时间： | 2004年7月2日 |
Hydrophlic modification of UHMWPE microfiltration membrane (Ⅱ)The property and filtration performance of the membrane |
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| GUO Hongxia,WANG Ping,CHEN Cuixian,LI Jiding.Hydrophlic modification of UHMWPE microfiltration membrane (Ⅱ)The property and filtration performance of the membrane[J].Membrane Science and Technology,2006,26(2):6-9. |
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| Authors: | GUO Hongxia WANG Ping CHEN Cuixian LI Jiding |
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| Abstract: | The wetting characteristic of the modified porous UHMWPE microfiltration membrane was investigated by the moisture adsorption of the membrane with grafted degree.Also,the amount of BSA adsorbed on the modified membranes was smaller than that of the unmodified membrane and decreased with the grafted degree.The modified membrane showed enhanced wetting property and better anti-fouling capability than that of the unmodified membrane.The filtration performances of the membranes as a function of the grafted degree indicated that the modified membranes showed a maximum deionized water flux in 18.0% grafted degree and a maximum BSA solution flux in 25.0%.Moreover,the flux recovery of the modified membrane after cleaning was superior to that of the unmodified membrane. |
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| Keywords: | UHMWPE microfiltration membrane flux BSA adsorption filtration performances |
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