探究不同聚合物浓度、外凝固浴温度、内凝固浴组成对干-湿相转化法所制备的聚醚砜(PES)/聚甲基丙烯酸甲酯(P MMA )共混中空纤维超滤膜的结构和性能的影响。结果显示,P MMA 的加入可以弱化PES膜的疏水性,提高膜的综合性能；总固含量增大,膜通量下降,截留率、拉伸强度增加；外凝固浴温度上升,膜通量增大,截留率、拉伸强度降低；随着芯液中N,N-二甲基乙酰胺(DMAc)含量增大,膜截面结构由对称双指状孔结构向单排指状孔结构转化,膜通量先减后增,截留率先升后降,拉伸强度呈增大趋势。
The effect of polymer concentration,coagulation bath temperature and bore liquid concentration on the performance of PES/PMMA blend hollow-fiber membranes,which were fabricated by phase inversion process were investigated.The addition of PMMA could improve hydrophilicity and overall performance of PES mem-brane.The results demonstrated that the pure water flux decreased gradually when the polymer concentration increased from 15% to 20%.However,the rejection and tensile strength increased.With the increase of coagu-lation bath temperature from 20 to 60 ℃,the pure water flux gradually increased,whereas both the rejection and tensile strength gradually decreased.In addition,with the increase of DMAc content in bore liquid,double finger-shaped voids on the cross-section of PES/PMMA hollow fiber membranes gradually transformed to a sin-gle row of finger voids.Meanwhile,the pure water flux first decreased and then increased.On the contrary,re-j ection decreased after slightly increasing,but tensile strength increased gradually.
参考文献
| [1] | Changsheng Zhao;Jimin Xue;Fen Ran;Shudong Sun .Modification of polyethersulfone membranes - A review of methods[J].Progress in materials science,2013(1):76-150. |
| [2] | Ochoa N A;Masuelli M .Effect of hydrophilicity on foul-ing of an emulsified oil wastewater with PVDF/PMMA membranes[J].Journal of Membrane Science,2003,226:203-211. |
| [3] | Xu Jingjing;Wang Jun .The preparation of PVC/PVDF/PMMA blend membrane[J].Membrane Science and Technology,2011,31(04):1-5. |
| [4] | Clara M;Gbmez Juan E;Figueruelo et al.Evaluation of thermodynamic parameters for blends of polythersulfone and poly(methylmethacrylate)or polystyrene in dimethyl formamide[J].Polymer,1998,39(17):4023-4032. |
| [5] | Zhou Jinsheng;Chen Guanwen .Inverstigate of influence factors in preparation of CA/CTA blend asymmetric nanofiltration membrane[J].Membrane Science and Technology,1999,19(02):22-26. |
| [6] | Wang Zheng;Dai Haiping et al.Development of high in-tercept ability hollow fiber ultrafiltration membrane[J].Water Purification Technology,2000,18(02):6-9. |
| [7] | Pereira C C;Nobrega R;Borges C P .Membrane forma-tion with presence of lewis acid-base complexes in poly-mer solution[J].Journal of Applied Polymer Science,2002,83:2022-2034. |
| [8] | Li Hao;Chen Jianbo;Liu Zhanhong et al.Inverstigate of PVDF/PVC/PMMA blend hollow fiber membrane with orthogonal method[J].Membrane Science and Technology,2007,27(06):32-36. |
| [9] | Amirilargani M;Saljoughi E;Mohammadi T.Effects of coagulation bath temperature and polyvinylpyr-rolidone content on flat sheet asymmetric polyethersulfone membraner[J].Polymer Engineering and Science,2010:885-893. |
| [10] | Jinming Peng;Yanlei Su;Wenjuan Chen .Effects of Coagulation Bath Temperature on the Separation Performance and Antifouling Property of Poly(ether sulfone) Ultrafiltration Membranes[J].Industrial & Engineering Chemistry Research,2010(10):4858-4864. |
| [11] | Gao Chunmei;Mei Yanbin;Xu Danli .Effect of gel con-ditions on the performance of PVDF/PVC ultrafiltration membranes[J].Membrane Science and Technology,2008,28(02):38-42. |
| [12] | Gui-E Chen;Jing-Feng Li;Ling-Feng Han;Zhen-Liang Xu;Li-Yun Yu .Preparation of Micro-porous Polyethersulphone Hollow Fibre Membranes Using Non-solvent Vapour-induced Phase Separation[J].Iranian polymer journal,2010(11):863-873. |
| [13] | M. Rahbari-sisakht;A.F. Ismail;T. Matsuura.Effect of bore fluid composition on structure and performance of asymmetric polysulfone hollow fiber membrane contactor for CO2 absorption[J].Separation and Purification Technology,2012:99-106. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%