| 聚砜超滤膜的表面化学改性 |
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| 引用本文： | 冷云飞,潘凯,原涛,曹兵.聚砜超滤膜的表面化学改性[J].北京化工大学学报(自然科学版),2009,36(3):65-70. |
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| 作者姓名： | 冷云飞 潘凯 原涛 曹兵 |
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| 作者单位： | 北京化工大学 材料科学与工程学院， 北京 100029 |
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| 摘 要： | 利用化学接枝方法在膜的表面引入亲水基团，提高膜的抗污染能力。通过过硫酸钾(K2S2O8)羟基化预处理、铈盐引发丙烯酰胺(AAm)对聚砜(PSF)膜进行亲水化改性，研究了预处理温度、时间以及接枝反应水浴温度的变化对接枝反应的影响；并采用X射线光电子能谱(XPS)和全反射红外光谱(ATR-FTIR)对接枝前后聚砜膜进行表征，用扫描电子显微镜(SEM)观察接枝前后聚砜膜的形貌变化。结果表明，在羟基化预处理温度为40℃，处理时间2h，接枝反应温度为40℃时，接枝改性后的聚砜膜表面水接触角能够降低到29°左右。
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| 关 键 词： | 聚砜膜 丙烯酰胺 接枝改性 亲水性 聚砜膜 丙烯酰胺 接枝改性 亲水性 |
| 收稿时间： | 2008-10-27 |
Surface chemical modification of a polysulfone membrane |
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| LENG YunFei,PAN Kai,YUAN Tao,CAO Bing.Surface chemical modification of a polysulfone membrane[J].Journal of Beijing University of Chemical Technology,2009,36(3):65-70. |
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| Authors: | LENG YunFei PAN Kai YUAN Tao CAO Bing |
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| Institution: | College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | Chemical grafting has been employed to introduce hydrophilic groups onto a polysulfone membrane, in an attempt to improve its hydrophilicity and anti-fouling capability. Acrylamide graft copolymerization was initiated by Ce4+/OH-on the membrane surface after pre-treatment with K2S2O8. XPS and ATR-FTIR analysis showed that acrylamide (AAm) was successfully grafted onto the PSF membrane surface, and the surface morphology of the membrane after grafting was visualized by SEM. The effects of varying the pre-tre... |
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| Keywords: | polysulfone membrane acrylamide grafting modification hydrophilicity |
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