膜科学与技术

Position：Home >> Abstract

Preparation and characterization of PSF microporous membranes by PSF-DMAc-PEG systems with low critical solution temperatures

Authors： Zhenliang Xu*, Fusi Jiang, Yongming Wei, Min Liu

Units： State Key Laboratory of Chemical Engineering, Membrane Science and Engineering R&D Lab, Chemical Engineering Research Center, East China University of Science and Technology, Shanghai 200237

KeyWords： Polysulfone; microporous membrane; thermally induced phase separation; low critical solution temperature

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2013,33(3):5-11

Abstract：

Polysulfone (PSF) - N, N-Dimethyl Acetamide (DMAc) -polyethylene Glycol (PEG200, PEG400 and PEG600) systems with low critical solution temperatures (LCST) were discussed. PSF-DMAc-PEG systems with LCST were confirmed by theory and experiments. PSF microporous membranes were fabricated by thermally induced phase separation with lower critical solution temperature (LCST-TIPS-Reverse thermally induced phase separation, RTIPS). The effects of coagulation bath temperatures, membrane preparing methods and compositions of casting solutions on morphologies and performances of PSF microporous membranes were discussed. Comprehensive mechanical properties of the membrane prepared by the mechanism of RTIPS were better than that by nonsolvent induced phase separation (NIPS). When the mass ratio of PEG400/DMAc was 1.1and coagulation bath temperature was 60℃, the membrane permeability and mechanical property was better as follows: the membrane flux was 670 L•m-2•h-1•bar-1, the average pore size was 0.060μm and the break strength was 5.62MPa.

Funds：

上海市科技攻关计划（11DZ1205201）

AuthorIntro：

许振良(1962 ~)，男，江苏江阴市人，教授、博导，主要研究膜科学与工程、分离科学与工程、污水治理工程等。

Reference：

[1].王勇, 王鸿儒. 聚砜类分离膜材料及其改性研究进[J]. 塑料工业, 2012, 40(1):5-8.
[2].Kim C, Lee K H. Effect of various additives on pore size of polysulfone membrane by phase-inversion process [J]. J Appl Polym Sci, 2003, 89:2562-2566.
[3].Muhamad D W, Basri H, Ahmad F I, etal. Effects of Water as Non-Solvent Additive on Performance of Polysulfone Ultrafiltration Membrane [J]. Adv Mater Res, 2012, 488-489:46-50.
[4].Han M J, Nam S T. Thermodynamic and rheological variation in polysulfone solution by PVP and its effect in the preparation of phase inversion membrane[J]. J Membr Sci, 2002, 202:55-61.
[5].秦建军, 林一铮, 江成璋. 下临界共溶温度体系制备聚砜中空纤维超滤膜的研究[J]. 膜科学与技术, 1993,13(4):18-22.
[6].许振良，刘敏，魏永明，程亮. 一种逆向热致相分离法制备聚砜类聚合物微孔膜的方法，中国发明申请号：CN201110318268.6（2011）.
[7].刘敏. TIPS与RTIPS法制备聚合物微孔膜[D]. 上海：华东理工大学,2011.
[8].Hansen C M. Hansen solubility parameters [M]. Florida: CRC Press, 1999.
[9].俞春芳, 黑恩成, 刘国杰. 聚合物的溶剂选择与新的两维溶解度参数[J]. 化工学报, 2001, 52(4):288-294.
[10].Kreve D W.Properties of polymers:Their estimation and correlation with chemical structure[M].4th Ed,NewYork:Elsevier,1991.
[11].Feng C S, Shi B L, Li G M, etal. Preparation and properties of microporous membrane from poly (vinylidenene fluoride-co-tetrafluoroethylene) (F2.4) for membrane distillation [J].J Membr Sci, 2004, 237(1-2):15-24.
[12].Ma Y X, Shi F M, Ma J, etal. Effect of PEG additive on the morphology and performance of polysulfone ultrafiltration membrane [J]. Desalination, 2011, 272:51-58.
[13].Chakrabarty B, Ghoshal A K. Effect of molecular weight of PEG on membrane Morphology and transport properties [J]. J Membr Sci, 2008, 309:209-221.

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