甲酰胺对PES及PPESK相转化非对称膜结构与性能的影响  

Effect of Formamide on Structure and Performance of PES,PPESK Ultrafiltration Membrane

作　　者：李磊[1] 孙伟娜[2] 陈翠仙[2] 李继定[2] 

机构地区：[1]青海民族学院化学系,青海西宁810007 [2]清华大学化工系,北京100084

出　　处：《高分子材料科学与工程》2010年第3期146-148,152,共4页Polymer Materials Science & Engineering

基　　金：国家973项目(2003CB615701);国家自然科学基金资助项目(20576059;20676067)

摘　　要：采用凝胶相转化法,以聚醚砜(PES)、杂萘联苯聚芳醚砜酮(PPESK)为膜材料,N,N-二甲基乙酰胺(DMAc)、N-甲基吡咯烷酮(NMP)为溶剂,通过改变铸膜液中非溶剂添加剂甲酰胺的含量,在平板刮膜机上制备了一系列超滤膜。考察了甲酰胺对铸膜液黏度、膜结构和性能的影响,对PES/DMAc和PPESK/NMP铸膜液体系中甲酰胺的作用规律进行了研究。Polyethersulphone（PES）,phenodiazine polyether-sulfone-ketone（PPESK）are developed engineering thermoplastic and membrane materials with high glass transition temperature.Gel phase inversion method was used to produce a series of PES/DMAc,PPESK/NMP ultrafiltration membrane with flat membrane casting equipment through changing the content of nonsolvent additives（formamide）.In this process,PES and PPESK were taken as solute,dimethylacetamide（DMAc）and N-methyl pyrrolidone（NMP）were taken as solvent.The effect of formamide on the viscosity of casting solution and the structure and performance of membrane was investigated and the action rules of formamide in PES/DMAc and PPESK/NMP membrane-forming system were studied.

关 键 词：聚醚砜 杂萘联苯聚芳醚砜酮 甲酰胺 超滤膜 

分 类 号：TB383[一般工业技术—材料科学与工程]