从原料、工艺和后处理三方面，综述了近年来基于推压成型-拉伸法制备聚四氟乙烯(PTFE)中空纤维膜微孔结构调控技术的研究进展。认为树脂原料是基础，压缩比决定膜内外径，分子量与膜微孔结构关系密切；工艺调节是最基本、最主要的手段，预成型、推压成型、热处理、拉伸致孔和烧结定型各工序及其参数能够直接影响膜微孔结构；后处理是有益补充，涂覆、物理气相沉积和包缠能够对膜表层微孔结构做进一步修饰，达到减小膜分离层孔径并最大限度保持膜的高孔隙率的目的。最后，对 PTFE 中空纤维膜微孔结构调控技术的发展趋势进行分析展望。
The successful process for preparation of PTFE hollow fiber membrane is known as paste extrusion-stretching.However,the process does not generally provide a membrane having fine pores size and high porosi-ty.The structure control,therefore,has been the main issue among researchers and manufacturers.This article provides an overview of recent progress on microporous structure control related to selection of PTFE fine pow-der,mechanical operations and post treatment.The effects of PTFE fine powder species,reduction ratio and molecular weight on the preforming were introduced in detail.Subsequently,a series of mechanical operations and process parameters were analyzed as suitable for the preparation of PTFE hollow fiber membrane and chan-ges of microporous structure.About the post treatment process,the surface coating,physical vapor deposition and spiral wrapping techniques would bring a host of salutary effects.It was pointed out the ingredients of PT-FE fine powder wasfoundation for getting microporous membrane,the process of mechanical operations was most directly effective approach,and post treatment was the beneficial supplement.Finally,the tendency about microporous structure controlling technology were suggested and forecasted.
参考文献
| [1] | Ignatieva L;Kuryaviy V;Tsvetnikov A;Polyshchuk S;Bouznik V.The structures of new forms of polytetrafluoroethylene obtained by modification of commercial PTFE using different methods[J].The journal of physics and chemistry of solids,20075/6(5/6):1106-1111. |
| [2] | Ardakani, H.A.;Mitsoulis, E.;Hatzikiriakos, S.G..A simple improved mathematical model for polytetrafluoroethylene (PTFE) paste extrusion[J].Chemical Engineering Science,2013:216-222. |
| [3] | J.YANG;K.L.Petersen;R.A.Williams;P.H.Geil;T.C.Long;P.Xu.MORPHOLOGY EVOLUTION IN PTFE AS A FUNCTION OF MELT TIME AND TEMPERATURE Ⅰ. HIGH MOLECULAR WEIGHT SINGLE- AND MULTI-MOLECULE FOLDED CHAIN SINGLE CRYSTALS AND BAND STRUCTURES[J].高分子科学（英文版）,2005(02):123-135. |
| [4] | J.Yang;R.Williams;K.Peterson;P.H.Geil;T.-C.Long;P.Xu.Morphology evolution in polytetrafluoroethylene as a function of melt time and temperature.Part III.Effect of prior deformation[J].Polymer: The International Journal for the Science and Technology of Polymers,200520(20):8723-8733. |
| [5] | Mohammad Mahdi A. Shirazi;Ali Kargari;Meisam Tabatabaei.Evaluation of commercial PTFE membranes in desalination by direct contact membrane distillation[J].Chemical Engineering and Processing,2014:16-25. |
| [6] | Julianna A. Franco;David D. deMontigny;Sandra E. Kentish.Polytetrafluoroethylene (PTFE)-Sputtered Polypropylene Membranes for Carbon Dioxide Separation in Membrane Gas Absorption: Hollow Fiber Configuration[J].Industrial & Engineering Chemistry Research,20123(3):1376-1382. |
| [7] | Cheng-Lee Lai;Shih-hsiung Chen;Rey-May Liou.Removing aqueous ammonia by membrane contactor process[J].Desalination and water treatment: Science and engineering,201325/27(25/27):5307-5310. |
| [8] | Ahn, Y.T.;Hwang, Y.H.;Shin, H.S..Application of PTFE membrane for ammonia removal in a membrane contactor[J].Water Science and Technology,201112(12):2944-2948. |
| [9] | Miyoshi, Taro;Yamamura, Hiroshi;Morita, Toru;Watanabe, Yoshimasa.Effect of intensive membrane aeration and membrane flux on membrane fouling in submerged membrane bioreactors: Reducing specific air demand per permeate (SAD(p))[J].Separation and Purification Technology,2015:1-9. |
| [10] | 陈承;朱利平;朱宝库;徐又一.热致相分离法制备聚合物微孔膜的研究进展[J].功能材料,2011(12):2124-2129. |
| [11] | Paul M. Atkinson;Douglas R. Lloyd.Anisotropic flat sheet membrane formation via TIPS: thermal effects[J].Journal of Membrane Science,20001(1):1-18. |
| [12] | Wang, Zhiyong;Yu, Wei;Zhou, Chixing.Preparation of polyethylene microporous membranes with high water permeability from thermally induced multiple phase transitions[J].Polymer: The International Journal for the Science and Technology of Polymers,2015:535-544. |
| [13] | Huang, Q.;Xiao, C.;Hu, X..Preparation and properties of polytetrafluoroethylene/CaCO_3 hybrid hollow fiber membranes[J].Journal of Applied Polymer Science,20121(1):324-330. |
| [14] | Qing-lin Huang;Chang-fa Xiao;Xiao-yu Hu.Study on the effects and properties of hydrophobic poly(tetrafluoroethylene) membrane[J].Desalination: The International Journal on the Science and Technology of Desalting and Water Purification,20111/3(1/3):187-192. |
| [15] | Endo R.;Uehara H.;Kanamoto T.;Porter RS.;Jounai K..Uniaxial drawing of polytetrafluoroethylene virgin powder by extrusion plus cold tensile draw[J].Journal of Polymer Science, Part B. Polymer Physics,199814(14):2551-2562. |
| [16] | Sawai D;Watanabe D;Morooka N;Kuroki H;Kanamoto T.Superdrawing of polytetrafluoroethylene nascent powder by solid-state coextrusion[J].Journal of Polymer Science, Part B. Polymer Physics,200623(23):3369-3377. |
| [17] | Alfonsius B.Ariawan;Sina Ebnesajjad;Savvas G.Hatzikiriakos.Properties of Polytetrafluoroethylene (PTFE) Paste Extrudates[J].Polymer engineering and science,20026(6):1247-1259. |
| [18] | Alfonsius B. Ariawan;Sina Ebnesajjad;Savvas G. Hatzikiriakos.Paste Extrusion of Polytetrafluoroethylene (PTFE) Fine Powder Resins[J].The Canadian Journal of Chemical Engineering,20026(6):1153-1165. |
| [19] | 黄祥瑞.PTFE多孔材料及多孔复合材料的制备方法和应用（一）[J].有机氟工业,2000(03):31. |
| [20] | 钱知勉.第三讲聚四氟乙烯分散树脂（Fluon CD）加工[J].有机氟工业,2001(2):54-60. |
| [21] | 张志梁;陈珊妹.扫描电镜用于PTFE拉伸微孔膜的形态结构研究--研制中PTFE拉伸微孔膜的SEM鉴定[J].化学物理学报,2003(2):151-155. |
| [22] | 张华鹏;朱海霖;王峰;郭玉海.聚四氟乙烯中空纤维膜的制备[J].膜科学与技术,2013(1):17-21. |
| [23] | Hongjie Wang;Shuanbao Ding;Hailin Zhu.Effect of stretching ratio and heating temperature on structure and performance of PTFE hollow fiber membrane in VMD for RO brine[J].Separation and Purification Technology,2014:82-94. |
| [24] | 田普锋;寇开昌;丁美平;颜录科.聚四氟乙烯拉伸微孔膜的制备[J].化工新型材料,2005(12):81-83. |
| [25] | Guo YH;Chen JY;Hao XM;Zhang JC;Feng XX;Zhang HP.A novel process for preparing expanded Polytetrafluoroethylene(ePTFE) micro-porous membrane through ePTFE/ePTFE co-stretching technique[J].Journal of Materials Science,20076(6):2081-2085. |
| [26] | Kurumada K.;Fukumoto N.;Oshima M.;Tanigaki M.;Kanazawa S.;Kitamura T..Structure generation in PTFE porous membranes induced by the uniaxial and biaxial stretching operations[J].Journal of Membrane Science,19981(1):51-57. |
| [27] | 孙小青;罗晃;黄萍.双向拉伸聚四氟乙烯复合膜的性能研究[J].塑料,2009(2):75-76,66. |
| [28] | Kitamura T.;Tanigaki M.;Kurumada K.;Ohshima M.;Kanazawa S.;Okabe S..Morphology change in polytetrafluoroethylene (PTFE) porous membrane caused by heat treatment[J].Polymer engineering and science,20003(3):809-817. |
| [29] | I.Ochoa;S.G.Hatzikiriakos;E.Mitsoulis.Paste Extrusion of Polytetrafluoroethylene:Temperature,Blending and Processing Aid Effects[J].International Polymer Processing: The Journal of the Polymer Processing Society,20065(5):497-503. |
| [30] | RADIUM HUANG;PING-SHUN HSU;CHUN-YIN KUO.Paste Extrusion Control and Its Influence on Pore Size Properties of PTFE Membranes[J].Advances in Polymer Technology,20073(3):163-172. |
| [31] | 张正清.膨体聚四氟乙烯制品的加工与应用[J].有机氟工业,2000(03):42. |
| [32] | J Herber;K J Reucker.New non-stick coatings for culinary utensils[J].Surface Coatings International, Part B. Coatings Transactions: The Science and Technology of Paints, Inks and Related Coatings and their Raw Materials,2001NB1(NB1):49-55. |
| [33] | K. Yliniemi;B.OEzkaya;N. Alissawi;V.Zaporojtchenko;T.Strunskus;B.P. Wilson;F. Faupel;G. Grundmeier.Combined in situ electrochemical impedance spectroscopy-UV/Vis and AFM studies of Ag nanoparticle stability in perfluorinated films[J].Materials Chemistry and Physics,20121(1):302-308. |
| [34] | Alissawi, N.;Zaporojtchenko, V.;Strunskus, T.;Hrkac, T.;Kocabas, I.;Erkartal, B.;Chakravadhanula, V.S.K.;Kienle, L.;Grundmeier, G.;Garbe-Sch?nberg, D.;Faupel, F..Tuning of the ion release properties of silver nanoparticles buried under a hydrophobic polymer barrier[J].Journal of nanoparticle research: An interdisciplinary forum for nanoscale science and technology,20127(7):928-1-928-12. |
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