以HQDEA-DMMDA新型聚醚酰亚胺(PEI)为基质膜材料,疏水型气相二氧化硅TS-530为填料,将TS-530分散到聚醚酰亚胺溶液中并采用流涎成膜方法,制备出不同质量比PEI/TS-530混合基质膜.与PEI膜相比,TS-530粒子的加入改变了聚合物链段的堆砌,增加了有效自由体积,使H2、CH4、N2、O2以及CO2的渗透系数都得到了增加,同时CO2对CH4、N2以及O2对N2的选择性均未发生较大程度的改变.随TS-530浓度增加,分子动力学直径越大的气体其渗透系数、扩散系数提升幅度越大,这与Maxwell模型发生了较大的偏离,而溶解系数的变化则取决于极性醚氧基团含量以及界面吸附作用.
参考文献
| [1] | Xing, R.;Ho, W.S.W. .Synthesis and characterization of crosslinked polyvinylalcohol/polyethyleneglycol blend membranes for CO_2/CH_4 separation[J].Journal of the Taiwan Institute of Chemical Engineers,2009(6):654-662. |
| [2] | Tai-Shung Chung;Lan Ying Jiang;Yi Li .Mixed matrix membranes (MMMs) comprising organic polymers with dispersed inorganic fillers for gas separation[J].Progress in Polymer Science,2007(4):483-507. |
| [3] | M.A. Aroon;A.F. Ismail;T. Matsuura .Performance studies of mixed matrix membranes for gas separation: A review[J].Separation and Purification Technology,2010(3):229-242. |
| [4] | 王志,袁芳,王明,王纪孝,王世昌.分离CO2膜技术[J].膜科学与技术,2011(03):11-17. |
| [5] | Robeson L M .Correlation of separation factor versus permeability for polymeric membranes[J].Journal of Membrane Science,1991,62(02):165-185. |
| [6] | Vu D Q;Koros W J;Miller S J .Mixed matrix membranes using carbon molecular sieves (Ⅰ) Preparation and experimental results[J].Journal of Membrane Science,2003,211(02):311-334. |
| [7] | Ahn JY;Chung WJ;Pinnau I;Guiver MD .Poly sulfone/silica nanoparticle mixed-matrix membranes for gas separation[J].Journal of Membrane Science,2008(1/2):123-133. |
| [8] | 李悦生;丁孟贤;徐纪平 .几种HQDEA聚醚酰亚胺的透气性能[J].膜科学与技术,1994,14(04):41-45. |
| [9] | 徐纪平;李悦生;丁孟贤 .几种聚醚酰亚胺H2/N2分离性能[J].功能材料,1995,26(04):368-370. |
| [10] | Wang R.;Cao C.;Chung TS. .A critical review on diffusivity and the characterization of diffusivity of 6FDA-6FpDA polyimide membranes for gas separation[J].Journal of Membrane Science,2002(2):259-271. |
| [11] | Haruhiko Ohya;Kudryavtsev V V;Semenova S I.Desalination 2[M].Holland:Elsevier,1997:225. |
| [12] | Zhang Y F;Balkus K J;Musselman I H .Mixed-matrix membranes composed of matrimid and mesoporous ZSM-5 nanoparticles[J].Journal of Membrane Science,2008,325(01):28-39. |
| [13] | Merkel T C;Freeman B D;Spontak R J et al.Ultrapermeable,reverse-selective nanocomposite membranes[J].SCIENCE,2002,296(5567):519-522. |
| [14] | Merkel TC.;He ZJ.;Pinnau I.;Freeman BD.;Meakin P.;Hill AJ. .Effect of nanoparticles on gas sorption and transport in poly(1-trimethylsilyl-1-propyne)[J].Macromolecules,2003(18):6844-6855. |
| [15] | Merkel TC.;He ZJ.;Pinnau I.;Freeman BD.;Meakin P.;Hill AJ. .Sorption and transport in poly(2,2-bis(trifluoromethyl)-4,5-difluoro-1,3-dioxole-co-tetrafluoroethyl ene) containing nanoscale fumed silica[J].Macromolecules,2003(22):8406-8414. |
| [16] | Takahashi S;Paul DR .Gas permeation in poly(ether imide) nanocomposite membranes based on surface-treated silica. Part 1: Without chemical coupling to matrix[J].Polymer: The International Journal for the Science and Technology of Polymers,2006(21):7519-7534. |
| [17] | S.Takahashi;D.R.Paul .Gas permeation in poly(ether imide) nanocomposite membranes based on surface-treated silica.Part 2: With chemical coupling to matrix[J].Polymer: The International Journal for the Science and Technology of Polymers,2006(21):7535-7547. |
| [18] | Bos A.High pressure CO2/CH4 separation with glassy polymer membranes[M].University of Twente,Fe-bodruk B V,Enschede,The Netherlands,1996:28. |
| [19] | Yanan Yang;Huixuan Zhang;Peng Wang;Qingzhu Zheng;Jun Li .The influence of nano-sized TiO_2 fillers on the morphologies and properties of PSF UF membrane[J].Journal of Membrane Science,2007(1/2):231-238. |
| [20] | Moore TT;Koros WJ .Non-ideal effects in organic-inorganic materials for gas separation membranes[J].Journal of Molecular Structure,2005(1/3):87-98. |
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