讨论了聚砜(PSf)-N,N-二甲基乙酰胺(DMAc)-聚乙二醇(PEG200、PEG400和PEG600)低临界共溶温度(LCST)体系；通过理论和实验验证了其LCST体系的存在,利用LCST的热致相分离(LCST-TIPS或Reverse thermally induced phase separation,简称RTIPS)法制备了PSf微孔膜,讨论了凝胶浴温度、制膜方法、铸膜液组成对PSf微孔膜的结构及性能影响.通过RTIPS机理所成膜综合力学性能优于非溶剂致相分离(NIPS)法所制备的膜,当PEG400:DMAc质量比为1.1∶1,成膜水浴温度60℃时,膜渗透性能和机械性能较好,其膜通量670 L/(m2·h·bar)(1 bar=0.1 MPa),平均孔径0.060 μm,断裂强度5.62MPa.
参考文献
| [1] | 王勇,王鸿儒.聚砜类分离膜材料及其改性研究进展[J].塑料工业,2012(01):5-8,26. |
| [2] | Kim IC.;Lee KH. .Effect of various additives on pore size of polysulfone membrane by phase-inversion process[J].Journal of Applied Polymer Science,2003(9):2562-2566. |
| [3] | Muhamad D W;Basri H;Ahmad F I et al.Effects of water as non-solvent additive on performance of polysulfone ultrafiltration membrane[J].Advances in Materials Research,2012,488-489:46-50. |
| [4] | Myeong-Jin Han;Suk-Tae Nam .Thermodynamic and rheological variation in polysulfone solution by PVP and its effect in the preparation of phase inversion membrane[J].Journal of Membrane Science,2002(1/2):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(04):18-22. |
| [6] | 许振良;刘敏;魏永明 等.一种逆向热致相分离法制备聚砜类聚合物微孔膜的方法[P].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(04):288-294. |
| [10] | Kreve D W.Properties of polymers:Their estimation and correlation with chemical structure[M].New York:Elsevier,1991 |
| [11] | Chunsheng Feng;Baoli Shi;Guomin Li;Yonglie Wu .Preparation and properties of microporous membrane from poly(vinylidene fluoride-co-tetrafluoroethylene) (F2.4) for membrane distillation[J].Journal of Membrane Science,2004(1/2):15-24. |
| [12] | Ma Y X;Shi F M;Ma J et al.Effect of PEG additive on the morphology and performance of polysulfone ultrafiltration membrane[J].Desalination,2011,272:51-58. |
| [13] | Chakrabarty B;Ghoshal AK;Purkait MK .Effect of molecular weight of PEG on membrane morphology and transport properties[J].Journal of Membrane Science,2008(1/2):209-221. |
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