选用两种分子量的聚醚砜(PES)为膜材料,以N-甲基吡咯烷酮为溶剂,分别以聚乙二醇(PEG400、PEG6000)和聚乙烯吡咯烷酮(PVP K30)为添加剂,用非溶剂致相分离法制备了超滤膜,研究了添加剂种类及浓度对不同分子量PES超滤膜性能的影响,利用相图及铸膜液黏度数据,从热力学、动力学、聚合物聚集体大小角度对实验现象进行了解释.结果表明,同种添加剂时,随PES分子量增大制得超滤膜的过滤通量增大、截留率降低.不同添加剂时,PES超滤膜对PEG20000溶液的通量按添加剂为PEG400,PEG6000,PVP K30的顺序依次增大.添加剂为PVP K30、PEG400时PES超滤膜的截留率大于添加剂为PEG6000时PES超滤膜截留率.铸膜液配方相同,添加剂浓度增大时,制得超滤膜的厚度增大,过滤通量增大、截留率降低.
参考文献
| [1] | Lilian Begoin;Murielle Rabiller-Baudry;Bernard Chaufer;Christine Faille;Pascal Blanpain-Avet .Methodology of analysis of a spiral-wound module.Application to PES membrane for ultrafiltration of skimmed milk[J].Desalination: The International Journal on the Science and Technology of Desalting and Water Purification,2006(1/3):40-53. |
| [2] | Zandrie Borneman;Vural Gokmen;Herry H.Nijhuis .Selective removal of polyphenols and brown colour in apple juices using PES/PVP membranes in a single ultrafiltration process[J].Separation and Purification Technology,2001(0):53-61. |
| [3] | Murielle Rabiller-Baudry;Lilian Begoin;David Delaunay .A dual approach of membrane cleaning based on physico-chemistry and hydrodynamics Application to PES membrane of dairy industry[J].Chemical Engineering and Processing,2008(3):267-275. |
| [4] | Rahimpour A;Madaeni SS .Polyethersulfone (PES)/cellulose acetate phthalate (CAP) blend ultrafiltration membranes: Preparation, morphology, performance and antifouling properties[J].Journal of Membrane Science,2007(1/2):299-312. |
| [5] | Miyano T;Matsuurat T;Sourirajans S .Effect of poly mer molecular weight,solvent and casting solution com position on the pore size and the pore size distribution of polyethersulfone (victrex) membrane[J].Chemical Engineering Communications,1990,95:11-26. |
| [6] | 赵岳轩.聚醚砜-溶剂体系膜性能的研究[J].化工时刊,2005(04):16-17. |
| [7] | Bil'dyukevich A V;Semenkevich N G;Pratsenko S A .Effect of polyethersulfone molecular weigth upon mem brane transport characteristics[J].Chemical Engineering Science,2007,2:74-79. |
| [8] | Chen Zhou;Zhengchi Hou;Xiaofeng Lu .Effect of Polyethersulfone Molecular Weight on Structure and Performance of Ultrafiltration Membranes[J].Industrial & Engineering Chemistry Research,2010(20):9988-9997. |
| [9] | 李磊,孙伟娜,陈翠仙.高分子添加剂PVPK30对酚酞基聚芳醚砜超滤膜成膜性能的影响[J].高分子材料科学与工程,2008(07):59-62. |
| [10] | 孙俊芬,王庆瑞.添加剂PVP对聚醚砜超滤膜微结构和性能的影响[J].膜科学与技术,2003(03):1-4. |
| [11] | 刘强,孟范平,姚瑞华,张爱静.添加剂聚乙二醇对壳聚糖超滤膜结构和性能的影响[J].膜科学与技术,2010(01):24-29. |
| [12] | Barzin J;Madaeni SS;Mirzadeh H;Mehrabzadeh M .Effect of polyvinylpyrrolidone on morphology and performance of hemodialysis membranes prepared from polyether sulfone[J].Journal of Applied Polymer Science,2004(6):3804-3813. |
| [13] | Torrestiana-Sanchez B.;Brito-De La Fuente E.;Ortiz-Basurto R.I. .Effect of nonsolvents on properties of spinning solutions and polyethersulfone hollow fiber ultrafiltration membranes[J].Journal of Membrane Science,1999(1):19-28. |
| [14] | B.K.Chaturvedi;A.K.Ghosh;V.Ramachandhran;M.K.Trivedi;M.S.Hanra;B.M.Misra .Preparation,characterization and performance of polyethersulfone ultrafiltration membranes[J].Desalination: The International Journal on the Science and Technology of Desalting and Water Purification,2001(1):31-40. |
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