以乙基纤维素(EC)为基体,四氢呋喃(THF)为溶剂,在高速搅拌下辅于超声振荡和三聚氰胺共混、涂膜制得了一系列三聚氰胺含量不同的三聚氰胺/EC混合基质膜。采用傅立叶红外光谱对膜的结构进行表征,通过薄膜拉伸强度测试仪、热失重分析和气体透过仪对膜性能进行了测试。结果表明:制得的混合基质膜具有良好的成膜性、耐热性及力学性能;与纯EC膜相比,混合基质膜对CO2的透过性有了一定的提升,其中CO2/CH4混合气的CO2透过达到了85.9Barrer,是纯EC膜的1.9倍;CO2/N2混合气的CO2的透过量达到了96.4Barrer,是纯EC膜的2.1倍。
A series of mixed matrix membranes (MMMs) with ethyl cellulose (EC) as matrix and melamine as modifier in tetrahydrofuran(THF)were prepared under high speed and ultrasonic vibration-assisted,by using the casting solution method.The melamine/EC membranes exhibited good membrane forming ability,heat resistance and mechanical properties.The successful melamine/EC mixed matrix membranes were confirmed by fourier transfer infrared (FT-IR).The CO2 permeability of the CO2/CH4 mixture was 85.9 Barrer,respectively,increased up to 1.9 times as compared to pure EC (45.3Barrer).The CO2 permeability of the CO2/N2 mixture was 96.4 Barrer,respectively,increased up to 2.1 times as compared to pure EC (45.4 Barrer).
[1] Pandey P,Chauhan S.Membranes for gas separation[J].Progress in Polymer Science,2001,26(6):853-893.
[2] Galizia M,Chi W S,Smith Z P,et al.50th anniversary perspective:polymers and mixed matrix membranes for gas and vapor separation:a review and prospective opportunities[J].Macromolecules,2017,50(20):7809-7843.
[3] Basu S,Khan A L,Angels C O,et al.ChemInform abstract:membrane-based technologies for biogas separations[J].Chemical Society Reviews,2010,39(19):750-768.
[4] Powell C,Qiao G.Polymeric CO2/N2 gas separation membranes for the capture of carbon dioxide from power plant flue gases[J].Journal of Membrane Science,2006,279(1):1-49.
[5] Venna S,Carreon M.Metal organic framework membranes for carbon dioxide separations[J].Chemical Engineering Science,2015,124:3-19.
[6] Sun P,Wang K,Zhu H.Recent developments in graphene-based membranes:structure,mass-transport mechanism and potential applicationss[J].Advanced Materials,2016,28(12):2287-2310.
[7] Zhu X,Tian C.New tricks for old molecules:development and application of porous N-doped,carbonaceous membranes for CO2 separations[J].Advanced Materials,2013,25(30):4152-4158.
[8] Verweij H.Inorganic membraness[J].Current Opinion in Chemical Engineering,2012,1(2):156-162.
[9] Rezakazemi M,Amooghin A.State-of-the-art membrane based CO2 separation using mixed matrix membranes (MMMs):an overview on current status and future directionss[J].Progress in Polymer Science,2014,39(5):817-861.
[10] Rafiq S,Deng L.Role of facilitated transport membranes and composite membranes for efficient CO2 capture-a reviews[J].Chem Bio Eng Reviews,2016,3(2):68-85.
[11] Rafiq S,Maulud A.Modelling in mixed matrix membranes for gas separations[J].Canadian Journal of Chemical Engineering,2015,93(1):88-95.
[12] Weller S,Steiner W A.Separation of gases by fractional permeation through membranes[J].Journal of Applied Physics,1950,21(4):279-283.
[13] Wang M H,Zhao J J,Wang X X,et al.Recent progress on submicron gas-selective polymeric membranes[J].Journal of Materials Chemistry A,2017,5:8860-8886.
[14] Obrien J C,Torrente-Murciano L,Mattia D,et al.Continuous production of cellulose microbeads via membrane emulsification[J].ACS Sustainable Chemistry & Engineering,2017,5(7):5931-5939.
[15] Sun H,Ma C,Wang T.Preparation and characterization of C60-filled ethyl cellulose mixed-matrix memb-ranes for gas separation of propylene/propane[J].Chemical Engineering & Technology,2014,37(4):611-619.
[16] Xu J Y,Jia H G,Yang N,et al.High efficiency gas permeability membranes from ethyl cellulose grafted with ionic liquids[J].Polymers,2019,11(11):1900.
[17] Li X Y,Hou M Q,Zhang Z F,et al.Absorption of CO2 by ionic liquid/polyethylene glycol mixture and the thermodynamic parameters[J].Green Chemistry,2008,10(8):879-884.
[18] Park H B,Kamcev J,Robeson L M,et al.Maximizing the right stuff:the trade-off between membrane permeability and selectivity[J].Science,2017,356(6343):1-10.
[19] Robeson L M.The upper bound revisited[J].Journal of Membrane Science,2008,320(1-2):390-400.
[20] Sainath K,Modi A,Bellare J.In-situ growth of zeolitic imidazolate framework-67 nanoparticles on polysulfone/graphene oxide hollow fiber membranes enhance CO2/CH4 separation[J].Journal of Membrane Science,2020,614:1-12.
[21] Zhao D,Li H,Qiu Y T,et al.Preparation and characterization of poly(amide-6-b-ethylene oxide) /multi-walled carbon nanotubes mixed matrix membranes[J].Polymer Materials Science and Engineering,2015,31(12):115-119.
[22] Wu T G,Prasetya N,Li K.Recent advances in aluminium-based metal-organic frameworks (MOF) and its membrane applications[J].Journal of Membrane Science,2020,615:1-18.
[23] Janakiram S,Espejo J L M,Yu X Y.Facilitated transport membranes containing graphene oxide-based nanoplatelets for CO2 separation:effect of 2D filler properties[J].Journal of Membrane Science,2020,616:1-11.
[24] Rehman A,Farrukh S,Hussain A,et al.Adsorption of CO2 on amine-functionalized green metal-organic framework:an interaction between amine and CO2 molecules[J].Environmental Science and Pollution Research,2019,26(5554):36214-36225.
[25] Shakeel I,Hussain A,Farrukh S.Effect analysis of nickel ferrite (NiFe2O4) and titanium dioxide (TiO2) nanoparticles on CH4/CO2 gas permeation properties of cellulose acetate based mixed matrix membranes[J].Journal of Polymers and the Environment,2019,27(7):1449-1464.
[26] Diez-Pascual A,Díez-Vicente A.Poly(3-hydroxybutyrate)/ZnO bionanocomposites with improved mechanical,barrier and antibacterial properties[J].International Journal of Molecular Ences,2014,15(6):10950-10973.
[27] Ahmad K,Mowla O,Kennedy E M,et al.A melamine-modified β-zeolite with enhanced CO2 capture properties[J].Energy Technology,2013,1(5-6):345-349.
[28] Taniguchi I,Kinugasa K,Toyoda M,et al.Effect of amine structure on CO2 capture by polymeric membranes[J].Science and Technology of Advanced Materials,2017,18(1):950-958.
