荷电镶嵌膜的制备与优化  

Optimization for and Preparation of the Charged-Mosaic Membrane

作　　者：张浩勤[1] 刘金盾[1] 范国栋[1] 罗庆涛[1] 

机构地区：[1]郑州大学化工学院,河南郑州450002

出　　处：《郑州大学学报（工学版）》2004年第3期18-21,共4页Journal of Zhengzhou University（Engineering Science）

基　　金：河南省高校杰出科研人才创新工程项目(2001KYCX006)

摘　　要：以聚醚砜中空纤维膜为支撑膜,通过界面聚合方法制备了能有效传递电解质而截留低分子量有机物的复合荷电镶嵌膜.将均匀设计用于界面聚合制备荷电镶嵌膜的过程中,用SPSS软件进行数据处理,得到了回归方程,方程描述了各种因素对膜分离性能的影响.在实验范围内,酸接受剂浓度对膜分离因子的影响很小;4-氯甲基苯酰氯浓度和表面活性剂浓度可取最大值;聚乙烯亚胺浓度和界面聚合反应时间存在交互作用和最优值.模型计算值与实验结果吻合良好,表明该模型可用于指导成膜实践.在优化条件下,膜对无机盐的截留率不超过30%,膜对蔗糖截留率大于90%,对二甲酚橙的截留率可达96%,说明该膜可用于无机盐与低分子量有机物的分离.　In this paper, the uniform design is applied to the preparation of the charged-mosaic membrane and the experimental data is processed with the aid of SPSS software. The regression equation is established. The regression equation can describe the influence of many factors for the separation performance of membrane. In the experiment range, the influence of the acid acceptors concentration counts Less,the 4-(chloromethyl) benzoyl chloride concentration and the surfactant concentration should take the maximum value.,the polyethylenimine (PEI) concentration and the interfacial polymerization reaction time have the interaction and the optimization values respectively. The model is in good agreement with experimental data. The model can provide an important guide for the preparation of the charge-mosaic membranes by interfacial polymerization. The charge-mosaic membrane prepared in the optimal condition, can be permeable to salts but meanwhile not to low-molecular-weight non-electrolytes.

关 键 词：荷电镶嵌膜 制备 优化 均匀设计 回归分析 界面聚合 电解质 

分 类 号：O648[理学—物理化学] TQ028.8[理学—化学]