新型聚氨酯/薄水铝石纳米复合膜的制备及气体渗透性能研究
作者:李启照
单位: 安徽新华学院,药学院,安徽 合肥,230088
关键词: 薄水铝石,聚氨酯,纳米复合膜,气体分离
分类号: TB383.2
出版年,卷(期):页码: 2020,40(6):79-87

摘要:
本文研究了薄水铝石(氢氧化氧化铝(γ-AlO(OH)))对聚醚型聚氨酯膜的气体渗透性能的影响。以硝酸铝(Al(NO3)3)和DEA为沉淀剂,通过水热机理合成了薄水铝石,并将其与聚氨酯基体结合。薄水铝石制备的最佳温度和时间分别为120℃和24小时。分别采用本体两步法和热相转化法制备了聚氨酯(PU)和聚氨酯/薄水铝石膜。通过XRD(x射线衍射)、FTIR(傅里叶变换红外光谱)、SEM(扫描电镜)和DSC(差示扫描量热法)等测试手段对制备的聚氨酯-薄水铝石膜的均匀性和纳米级分布进行了表征。聚合物的红外光谱测试结果表明,链的迁移率得到了控制,软段和硬段的相分离得到了提高。研究了不同薄水铝石浓度的(5%、10%、15%和20 wt.%)纳米复合膜对纯CO2、N2、O2和CH4气体的气体渗透性能。实验结果表明,通过在聚氨酯膜中增加不透水性薄水铝石纳米粒子,可明显降低膜的透气性。然而,由于薄水铝石含量的增加,对CO2/N2和CO2/CH4混合气体的选择性分别提高了36.5%和46.85%。
In this paper, the effect of alumina hydroxide (γ - AlO (OH)) nanoparticles on the gas permeability of polyether polyurethane membrane was studied. Aluminum nitrate (Al (NO3) 3) and DEA were used as precipitants. The thin bauxite was synthesized by hydrothermal mechanism and combined with polyurethane matrix. The optimum temperature and time of nanoparticle preparation were 200°c and 24 h, respectively. Polyurethane (PU) and polyurethane / boehmite films were prepared by thermal phase transformation. XRD, FTIR, SEM and DSC were used to characterize the uniformity and nano distribution of the polyurethane - boehmite films.The results of FTIR showed that the mobility of the chain was controlled, and the phase separation of the soft segment and the hard segment was improved. The gas permeability of nanocomposite films with different bauxite concentrations (5%,10%,15%, and 20 wt.%) to pure CO2, N2, O2, and CH4 gases was investigated. The experimental results show that the permeability of the membrane can be significantly reduced by adding impermeable thin bauxite nanoparticles to the polyurethane-buhemite film. However, the selectivity to CO2/N2 and CO2/CH4 mixtures increased by 36.5% and 46.85%, respectively, due to the increased content of bauxite in thin water.

基金项目:
安徽教育厅自然科学研究项目,项目编号:KJ2017A627 安徽省级质量工程项目,项目编号:2016sxzx021

作者简介:
李启照(1970.10-),男,汉,安徽金寨人,硕士,副教授,主要研究领域为制药工程

参考文献:
[1] Sodeifian G, Raji M, Asghari M, Rezakazemi M, Dashti A. Polyurethane-SAPO-34 mixed matrix membrane for CO2/CH4 and CO2/N2 separation. Chinese Journal of Chemical Engineering 2019;27: 322-34.
[2] Mattisson T, Lyngfelt A, Cho P. The use of iron oxide as an oxygen carrier in chemical-looping combustion of methane with inherent separation of CO2. Fuel 2001;80: 1953-62.
[3] Gamali PA, Kazemi A, Zadmard R, Anjareghi MJ, Rezakhani A, Rahighi R, Madani M. Distinguished discriminatory separation of CO2 from its methane-containing gas mixture via PEBAX mixed matrix membrane. Chinese Journal of Chemical Engineering 2018;26: 73-80.
[4] Knapik E, Kosowski P, Stopa J. Cryogenic liquefaction and separation of CO2 using nitrogen removal unit cold energy. Chemical Engineering Research and Design 2018;131: 66-79.
[5] Saqib S, Rafiq S, Muhammad N, Khan Al, Mukhtar A, Mellon NB, Man Z, Nawaz MH, Jamil F, Ahmad NM. Perylene based novel mixed matrix membranes with enhanced selective pure and mixed gases (CO2, CH4, and N2) separation. Journal of Natural Gas Science and Engineering 2020;73: 103072.
[6] Song S, Gao F, Zhang Y, Li X, Zhou M, Wang B, Zhou R. Preparation of SSZ-13 membranes with enhanced fluxes using asymmetric Alumina supports for N2/CH4 and CO2/CH4 separations. Separation and Purification Technology 2019;209: 946-54.
[7] Thankamony RL, Li X, Das SK, Ostwal MM, Lai Z. Porous covalent triazine piperazine polymer (CTPP)/PEBAX mixed matrix membranes for CO2/N2 and CO2/CH4 separations. Journal of Membrane Science 2019;591: 117348.
[8] Ying W, Han B, Lin H, Chen D, Peng X. Laminated Mica Nanosheets Supported Ionic Liquid Membrane for CO2 Separation. Nanotechnology 2019.
[9] Li Y, Pu H, Wei Y. Polypropylene/polyethylene multilayer separators with enhanced thermal stability for lithium-ion battery via multilayer coextrusion. Electrochimica Acta 2018;264: 140-9.
[10]Chen YZ, Zhu H Yao LL, Ye H, Cui P. Preparation of waterborne polyurethane membranes based upon benzoic anhydride polyester polyol and pervaporation performances for benzene/cyclohexane separation. Membrane Science and Technology, 2017,37 (01): 51-57 + 68.
[11] Pournaghshband Isfahani A, Sadeghi M, Wakimoto K, Shrestha BB, Bagheri R, Sivaniah E, Ghalei B. Pentiptycene-based polyurethane with enhanced mechanical properties and CO2-plasticization resistance for thin film gas separation membranes. ACS applied materials & interfaces 2018;10: 17366-74.
[12] Yildirim E, Yurtsever M, Yilgör E, Yilgör I, Wilkes GL. Temperature‐dependent changes in the hydrogen bonded hard segment network and microphase morphology in a model polyurethane: Experimental and simulation studies. Journal of Polymer Science Part B: Polymer Physics 2018;56: 182-92.
[13] Wang S-W, Colby RH. Linear Viscoelasticity and Cation Conduction in Polyurethane Sulfonate Ionomers with Ions in the Soft Segment–Single Phase Systems. Macromolecules 2018;51: 2757-66.
[14] Sadeghi M, Isfahani AP, Shamsabadi AA, Favakeh S, Soroush M. Improved gas transport properties of polyurethane–urea membranes through incorporating a cadmium‐based metal organic framework. Journal of Applied Polymer Science 2019.
[15] Ghalei B, Pournaghshband Isfahani A, Sadeghi M, Vakili E, Jalili A. Polyurethane‐mesoporous silica gas separation membranes. Polymers for Advanced Technologies 2018;29: 874-83.
[16] Huang G, Isfahani AP, Muchtar A, Sakurai K, Shrestha BB, Qin D, Yamaguchi D, Sivaniah E, Ghalei B. Pebax/ionic liquid modified graphene oxide mixed matrix membranes for enhanced CO2 capture. Journal of membrane science 2018;565: 370-9.
[17] Molki B, Aframehr WM, Bagheri R, Salimi J. Mixed matrix membranes of polyurethane with nickel oxide nanoparticles for CO2 gas separation. Journal of membrane science 2018;549: 588-601.
[18] Azari M, Sadeghi M, Aroon M, Matsuura T. Polyurethane Mixed Matrix Membranes for Gas Separation: A Systematic Study on E?ect of SiO2/TiO2 Nanoparticles. Journal of Membrane Science and Research 2019;5: 33-43.
[19] Li Y, Liu J, Jia Z. Fabrication of boehmite AlOOH nanofibers by a simple hydrothermal process. Materials Letters 2006;60: 3586-90.
[20] Llevot A, Meier M. Perspective: green polyurethane synthesis for coating applications. Polymer International 2019;68: 826-31.
[21] Rojas-Buzo S, García-García P, Corma A. Zr-MOF-808@ MCM-41 catalyzed phosgene-free synthesis of polyurethane precursors. Catalysis Science & Technology 2019;9: 146-56.
[22] Guelcher SA, Lu S, McGough MA, Zienkiewicz KL, Nanocrystalline hydroxyapatite/polyurethane hybrid polymers and synthesis thereof, in, Google Patents, 2018.
[23] Craster B, Jones TG. Permeation of a Range of Species through Polymer Layers under Varying Conditions of Temperature and Pressure: In Situ Measurement Methods. Polymers 2019;11: 1056.
[24] Monteleone M, Esposito E, Fuoco A, Lan? M, Pilná?ek K, Friess K, Bezzu C, Carta M, McKeown N, Jansen J. A novel time lag method for the analysis of mixed gas diffusion in polymeric membranes by on-line mass spectrometry: Pressure dependence of transport parameters. Membranes 2018;8: 73.
[25] Prewitz M, Gaber M, Müller R, Marotztke C, Holtappels K. Polymer coated glass capillaries and structures for high-pressure hydrogen storage: Permeability and hydrogen tightness. International Journal of Hydrogen Energy 2018;43: 5637-44.
[26] Meng L, Kanezashi M, Wang J, Tsuru T. Permeation properties of BTESE–TEOS organosilica membranes and application to O2/SO2 gas separation. Journal of membrane science 2015;496: 211-8.
[27] Zhao Y, Jung BT, AnsAlOni L, Ho WW. Multiwalled carbon nanotube mixed matrix membranes containing amines for high pressure CO2/H2 separation. Journal of membrane science 2014;459: 233-43.
[28] Niimi T, Nagasawa H, Kanezashi M, Yoshioka T, Ito K, Tsuru T. Preparation of BTESE-derived organosilica membranes for catalytic membrane reactors of methylcyclohexane dehydrogenation. Journal of membrane science 2014;455: 375-83.

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