聚丙烯腈超滤膜的流动特性研究  

Study of the Flow Character of Porous Polymer UF Membranes

作　　者：王建[1] 王晓琳[2] 营爱玲[3] 俞斌[4] 

机构地区：[1]连云港化工高等专科学校,江苏连云港222001 [2]清华大学,北京100084 [3]淮海工学院,江苏连云港222005 [4]南京化工大学,江苏南京221009

出　　处：《淮海工学院学报（人文社会科学版）》2001年第2期5-7,共3页Journal of Huaihai Institute of Technology(Humanities & Social Sciences Edition)

基　　金：国家自然科学基金(批准号:29876018)

摘　　要：研究了多孔性聚丙烯腈管式超滤膜的流动特性．考察了不同浓度的ＮａＣｌ，ＫＣＩ，ＭｇＣｌ２， ＮａＳＯ４和ＭｇＳＯ４等电解质溶液对ＵＦ膜的流动特性随区差的变化关系．结果显示，在几种电解质 溶液中．ＵＦ膜的透过流量随压差变化表现出良好的线性关系．这种关系不随电解质种类、浓度和 压差变化．实验过程中ＵＦ膜的微孔结构稳定．使用过程中膜孔因堵塞造成膜污染的机会很小．The permeation flux through the porous polymer UF tubular membrane which is composed of polyacrylonitrile was measured under the corresponding applied pressure difference. The permeation flux through the membrane was plotted against the applied pressure difference as the linear relation, the ratio is defined as the pure water permeability. According to the Hagen-Poisenille equation, the pore diameters of the membranes can be determined. The knowledge of pollution degree of the membranes can be understood from the changes of the pore diameters. In all the experiments, the pure water permeability of ACP-0053 UF membrane does not change with the test time. It can be explained that the UF membrane is not easily polluted.

关 键 词：超滤膜 流动特性 纯水透过系数 污染 

分 类 号：O647[理学—物理化学]