为了获得能够高效处理印染废水中有毒染料的分离膜,采用静电纺丝技术制备了具有亚微米级直径的聚砜(PSF)纤维膜和纳米级直径的尼龙6(PA6)纤维膜,通过SEM、孔径分析测试仪、接触角测量仪、电子强力仪和紫外可见光分光光度仪测试并分析了此两种纤维膜的孔隙结构、润湿性、力学性能及对分散蓝2BLN悬浮液和弱酸性蓝N-RL水溶液的过滤性能.结果表明,静电纺PA6纤维膜和PSF纤维膜的孔隙结构都属于微滤膜范畴,孔隙率均高于80％,其中PSF纤维膜对水具有较强的抗润性,而PA6纤维膜具有优良的润湿性,并且其力学性能明显优于PSF纤维膜.在0.1 MPa死端恒压过滤条件下,连续过滤1h后,两类纤维膜对分散蓝2BLN的截留率均达到94％以上,对弱酸性蓝N-RL的截留率均小于36％,但是均具有较高的过滤通量并且逐渐趋于一致.
The submicro-diameter polysulfone (PSF) fibrous membrane and nano-diameter nylon 6 (PA6) fibrous membrane were prepared by electrospinning in order to separate efficiently toxic synthetic dyes from water.The pore structure,wettability,mechanical property and filtration properties for disperse blue 2BLN and weak acid blue N-RL of these two type membranes were studied by SEM,pore-diameter testing meter,contact angle measurement,tensile strength tester and ultraviolet spectrophotometer.The results showed that the pore diameter of these membranes were all belonged to microfiltration membrane's,and both of their porosity were all above 80％.It also showed that the electrospun PSF fibrous membrane had poor wettability,but the electrospun PA6 fibrous membrane had excellent wettability.When both of them were filtered under constant 0.1 MPa pressure for 1 h,their rejection rate for disperse blue 2BLN were all above 94％,but their rejection rate for weak acid blue N-RL was lower than 36％,while their filtering flux were all higher than traditional commerce microfiltration membrane,and were all gradually tending to consistent with time.
参考文献
| [1] | Porter JJ..Recovery of polyvinyl alcohol and hot water from the textile wastewater using thermally stable membranes[J].Journal of Membrane Science,19981(1):45-53. |
| [2] | Sanchuan Yu;Congjie Gao;Hexiang Su;Meihong Liu.Nanofiltration used for desalination and concentration in dye production[J].Desalination: The International Journal on the Science and Technology of Desalting and Water Purification,20011(1):97-100. |
| [3] | Gopal R;Kaur S;Ma ZW;Chan C;Ramakrishna S;Matsuura T.Electrospun nanofibrous filtration membrane[J].Journal of Membrane Science,20061/2(1/2):581-586. |
| [4] | Renuga Gopal;Satinderpal Kaur;Chao Yang Feng;Casey Chan;Seeram Ramakrishna;Shahram Tabe;Takeshi Matsuura.Electrospun nanofibrous polysulfone membranes as pre-filters: Particulate removal[J].Journal of Membrane Science,20071/2(1/2):210-219. |
| [5] | Aussawasathien D;Teerawattananon C;Vongachariya A.Separation of micron to sub-micron particles from water: Electrospun nylon-6 nanofibrous membranes as pre-filters[J].Journal of Membrane Science,20081/2(1/2):11-19. |
| [6] | Satinderpal Kaur;Zuwei Ma;Renuga Gopal.Plasma-Induced Graft Copolymerization of PoIy(methacrylic acid) on Electrospun Poly(vinyIidene fluoride) Nanofiber Membrane[J].Langmuir: The ACS Journal of Surfaces and Colloids,200726(26):13085-13092. |
| [7] | Pai, C.-L.;Boyce, M.C.;Rutledge, G.C..On the importance of fiber curvature to the elastic moduli of electrospun nonwoven fiber meshes[J].Polymer: The International Journal for the Science and Technology of Polymers,201126(26):6126-6133. |
| [8] | Croisier,F.;Duwez,A.-S.;Jér?me,C.;Léonard,A.F.;VanDerWerf,K.O.;Dijkstra,P.J.;Bennink,M.L..Mechanical testing of electrospun PCL fibers[J].Acta biomaterialia,20121(1):218-224. |
| [9] | Rahul Sen;Bin Zhao;Daniel Perea;Mikhail E. Itkis;Hui Hu;James Love;Elena Bekyarova;Robert C. Haddon.Preparation of Single-Walled Carbon Nanotube Reinforced Polystyrene and Polyurethane Nanofibers and Membranes by Electrospinning[J].Nano letters,20043(3):459-464. |
| [10] | G M KIM;R LACH;G H MICHLER.Relationships between phase morphology and deformation mechanisms in polymer nanocomposite nanofibres prepared by an electrospinning process[J].Nanotechnology,20064(4):963-972. |
| [11] | Julia J. Mack;Lisa M. Viculis;Ashraf Ali;Russell Luoh;Guoliang Yang;H. Thomas Hahn;Frank K. Ko;Richard B. Kaner.Graphite Nanoplatelet Reinforcement of Electrospun Polyacrylonitrile Nanofibers[J].Advanced Materials,20051(1):77-80. |
| [12] | Papkov, D.;Zou, Y.;Andalib, M.N.;Goponenko, A.;Cheng, S.Z.D.;Dzenis, Y.A..Simultaneously strong and tough ultrafine continuous nanofibers[J].ACS nano,20134(4):3324-3331. |
| [13] | Zuwei Ma;M. Kotaki;S. Ramakrishna.Surface modified nonwoven polysulphone (PSU) fiber mesh by electrospinning: A novel affinity membrane[J].Journal of Membrane Science,20061/2(1/2):179-187. |
| [14] | Yoon, K;Hsiao, BS;Chu, B.Formation of functional polyethersulfone electrospun membrane for water purification by mixed solvent and oxidation processes[J].Polymer: The International Journal for the Science and Technology of Polymers,200913(13):2893-2899. |
| [15] | Hongyang Ma;Christian Burger;Benjamin S. Hsiao.Ultra-fine cellulose nanofibers: new nano-scale materials for water purification[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,201121(21):7507-7510. |
| [16] | 黄博能;王娇娜;李从举.可调制润湿性和力学性能的电纺纤维膜的制备与性能研究[J].高分子学报,2012(9):929-936. |
| [17] | 许振良;李鲜日;周颖.超滤-微滤膜过滤传质理论的研究进展[J].膜科学与技术,2008(4):1-8. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%