水解聚丙烯腈超滤膜的制备与性能  

Preparation and Properties of Hydrolyzed Polyacrylonitrile Ultrafiltration Membrane

作　　者：郭玉阳 张洪超 张雪松 胡雪梅 杨亚楠[1] Guo Yuyang;Zhang Hongchao;Zhang Xuesong;Hu Xuemei;Yang Yanan(School of Chemical Engineering, Changchun University of Technology, Changchun,Jilin,130012)

机构地区：[1]长春工业大学化学工程学院,吉林长春130012

出　　处：《现代塑料加工应用》2020年第3期12-15,共4页Modern Plastics Processing and Applications

摘　　要：以水解改性聚丙烯腈(HPAN)为膜材料,采用相转化法成功制备了HPAN超滤膜。通过孔隙率测试、水接触角测试和动态污染试验等方法,研究了PAN水解时间对HPAN超滤膜结构形态和性能的影响。结果表明:随着PAN水解时间的增加,HPAN超滤膜的亲水性提高,孔的贯通性改善,孔隙率增加,纯水通量得到明显提升;但较长的水解时间会导致HPAN降解以及HPAN超滤膜截留性能下降。水解时间为2 h时,HPAN超滤膜具有优异的透水性,对牛血清白蛋白有较高的截留能力(93%)以及良好的防污能力。Hydrophilic polyacrylonitrile(HPAN)ultrafiltration membranes were successfully prepared with hydrolysis modified polyacrylonitrile as the basic materials by phase inversion methods.The effects of hydrolysis time of polyacrylonitrile on the morphologies and properties of HPAN ultrafiltration membranes were investigated through the methods of porosity testing,water contact angle test and dynamic anti-contamination,etc.The results show that with the increase of the hydrolysis time of polyacrylonitrile,the hydrophilicity of HPAN membrane increases,and the pore penetration improves,and the porosity increases,and the pure water flux is significantly improved.However,longer hydrolysis time will lead to degradation of HPAN and reduction of HPAN ultrafiltration membrane retention performance.When the hydrolysis time is 2 h,HAPN ultrafiltration membrane has excellent water permeability,higher retention capacity(93%)for bovine serum protein and good antifouling ability.

关 键 词：聚丙烯腈 超滤膜 水解改性 水通量 

分 类 号：TE2[石油与天然气工程—油气井工程]