| 蒸发时间对两级凝胶法制备的聚醚砜膜结构和性能的影响 |
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| 引用本文： | 梅勇,丛军英,何春菊,王庆瑞.蒸发时间对两级凝胶法制备的聚醚砜膜结构和性能的影响[J].膜科学与技术,2004,24(6):1-4,9. |
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| 作者姓名： | 梅勇 丛军英 何春菊 王庆瑞 |
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| 作者单位： | 东华大学纤维材料改性国家重点实验室,上海,200051 |
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| 基金项目： | 上海重点专业基金资助项目 |
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| 摘 要： | 主要探讨了蒸发时间对用两级凝胶法(dual—bath coagulation method)所制得的聚醚砜(PES)超滤膜的性能和结构的影响．结果表明，随着蒸发时间的延长，水通量先减小后增大；肌肝和尿素去除率均是先升高而后降低，然后再升高的趋势；膜的孔隙率上升，平均孔径下降．在蒸发时间为10s时，肌肝和尿素去除率最高，且水通量适中，是血液净化用聚醚砜膜的最佳成形条件．
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| 关 键 词： | 聚醚砜膜 尿素去除率 蒸发时间 水通量 制备 凝胶法 成形条件 升高 影响 血液净化 |
| 文章编号： | 1007-8924(2004)06-0001-04 |
Effect of evaporation time on the structure and property of PES membrane formed by a dual- bath coagulation method |
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| MEI Yong,CONG Junying,HE Chunju,WANG Qingrui Donghua University,Shanghai ,China.Effect of evaporation time on the structure and property of PES membrane formed by a dual- bath coagulation method[J].Membrane Science and Technology,2004,24(6):1-4,9. |
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| Authors: | MEI Yong CONG Junying HE Chunju WANG Qingrui Donghua University Shanghai China |
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| Affiliation: | MEI Yong,CONG Junying,HE Chunju,WANG Qingrui Donghua University,Shanghai 200051,China) |
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| Abstract: | The effect of evaporation time on the structure and property of polyethersulfone ultrafiltration membrane formed by a dual-bath coagulation method were studied.The results show that the clearance rates of both urea and creatintine reach the highest and the pure water flux is moderate when the evaporation time is 10 seconds,which is the best formation condition for PES membrane used for hemofiltration. |
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| Keywords: | polyethersulfone dual-bath coagulation evaporation time water flux the clearance rate of creatintine the clearance rate of urea |
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