Position：Home >> Abstract

Structure control and characterization of polysulfone porous support membranes
Authors： BAI Jinliang, ZHANG Shouhai, WU Yawei, LI Zhansheng*, JIAN Xigao
Units： School of Chemical Engineering, Liaoning High Performance Polymer Engineering Research Center, Dalian university of technology, Dalian 116024, China
KeyWords： polysulfone; support membrane; sponge-like structure; pore size and pore size distribution.
ClassificationCode：TQ028.8
year,volume(issue):pagination： 2020, 40(6):65-70

Abstract：

The porous support membrane is critical for the fabrication of the high-performance reverse osmosis composite membranes. A series of flat membranes were prepared by immersion precipitation method using polysulfone (PSf) as the membrane material, N,N-dimethylacetamide (DMAc) as the solvent, -butyrolactone (GBL) as the second solvent, isopropyl alcohol (IPA) as the non-solvent additive, and water as the coagulation agent. The effects of DMAc/GBL mass ratio and approaching ratio  on the viscosity of the casting solution, the membrane structure and performance were discussed herein. The results showed that as the DMAc/GBL mass ratio decreased, the viscosity of the casting solution increased, the polysulfone flat membrane changed from finger-like structure to sponge-like structure, the membrane surface pore size decreased, and the pore size distribution became narrow. As the value of  increased, the viscosity of the casting solution increased, the formation of finger-like pores was suppressed, and membranes gradually changed to sponge-like pore structure, and the pore size distribution became wide

Funds：
国家重点研发计划项目（2017YFB0307600）；中央高校基本科研业务费资助项目（DUT19ZD404）

AuthorIntro：
白金亮（1994-），男，硕士研究生，研究方向为功能高分子膜材料及分离膜。E-mail：liang13050621604@qq.com。

Reference：

[1] STRATHMANN H. Introduction to Membrane Science and Technology [M]. Weinheim: Wiley-VCH, 2013.
[2] LAU W J, ISMAIL A F, MISDAN N, et al. A recent progress in thin film composite membrane: A review [J]. Desalination, 2012, 287: 190-199.
[3] 俞三传, 金可勇, 高从堦. 高性能聚砜支撑膜研制 [J]. 膜科学与技术, 1999, 06): 45-7+55.
[4] BAKER R. Membrane Technology and Applications [M]. Third ed. Chichester: Wiley, 2012.
[5] RAMON G Z, WONG M C Y, HOEK E M V. Transport through composite membrane, part 1: Is there an optimal support membrane? [J]. Journal of Membrane Science, 2012, 415-416: 298-305.
[6] ZHANG Z, AN Q, LIU T, et al. Fabrication of polysulfone ultrafiltration membranes of a density gradient cross section with good anti-pressure stability and relatively high water flux [J]. Desalination, 2011, 269(1): 239-48.
[7] LIU F, WANG L, LI D, et al. A review: the effect of the microporous support during interfacial polymerization on the morphology and performances of a thin film composite membrane for liquid purification [J]. RSC Adv, 2019, 9(61): 35417-28.
[8] 朱姝, 赵颂, 王志, 等. 用于反渗透复合膜的海绵状结构支撑膜制备研究 [J]. 化工学报, 2015, 66(10): 3991-3999.
[9] GHOSH A K, HOEK E M V. Impacts of support membrane structure and chemistry on polyamide-polysulfone interfacial composite membranes [J]. Journal of Membrane Science, 2009, 336(1-2): 140-148.
[10] MISDAN N, LAU W J, ISMAIL A F, et al. Formation of thin film composite nanofiltration membrane: Effect of polysulfone substrate characteristics [J]. Desalination, 2013, 329: 9-18.
[11] ZHU S, ZHAO S, WANG Z, et al. Improved performance of polyamide thin-film composite nanofiltration membrane by using polyetersulfone/polyaniline membrane as the substrate [J]. Journal of Membrane Science, 2015, 493: 263-274.
[12] SHARABATI J-A-D, GUCLU S, ERKOC-ILTER S, et al. Interfacially polymerized thin-film composite membranes: Impact of support layer pore size on active layer polymerization and seawater desalination performance [J]. Sep Purif Technol, 2019, 212: 438-448.
[13] KNEIFEL K, PEINEMANN K V. Preparation of hollow fiber membranes from polyetherimide for gas separation [J]. Journal of Membrane Science, 1992, 65(3): 295-307.
[14] LI Z, REN J, FANE A G, et al. Influence of solvent on the structure and performance of cellulose acetate membranes [J]. Journal of Membrane Science, 2006, 279(1): 601-607.
[15] 周敬倩, 任吉中, 林立,等. γ-丁内酯对聚醚酰亚胺膜结构形态的影响 [J]. 膜科学与技术, 2009, 29(4): 34-38.
[16] 王连军, 李杨, 胡义, 等. 气体分离复合膜的聚丙烯腈支撑底膜的制备与表征 [J]. 膜科学与技术 2015, 35(2): 48-52.
[17] REN J Z, LI Z S, WONG F S. A new method for the prediction of pore size distribution and MWCO of ultrafiltration membranes [J]. Journal of Membrane Science, 2006, 279(1-2): 558-569.
[18] HANSEN C M, EDITOR. Hansen Solubility Parameters: A User's Handbook [M]. CRC Press LLC, 2007.
[19] 何涛, 江成璋. 聚醚砜微孔膜制备中非溶剂添加剂作用研究 [J]. 膜科学与技术, 1998, 18(3): 45-50.

Service：
【Download】【Collect】

《膜科学与技术》编辑部 Address: Bluestar building, 19 east beisanhuan road, chaoyang district, Beijing; 100029 Postal code; Telephone：010-80492417/010-80485372; Fax：010-80485372 ; Email：mkxyjs@163.com

京公网安备11011302000819号