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Thin film UV-curable acrylate polyurethane/MOF mixed matrix membranes for CO2 separation

Shojaei, A ; Sharif University of Technology | 2020

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  1. Type of Document: Article
  2. Publisher: Applied Mechanics Laboratory , 2020
  3. Abstract:
  4. The major obstacles in gas separation by mixed-matrix composite membranes (MMCMs) are poor dispersion and poor affinity between polymers and fillers. The present study demonstrates that these challenges can be overcome appropriately by utilizing a series of synthesized MMCMs. MMCMs were prepared with UV-curable polyurethane acrylate and UiO-66 as selective layer and polyester/polysulfone (PS/PSF) as support layer. The physical properties of prepared MMCMs were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) and Fourier transform infrared spectroscopy (FTIR). Microscopic analysis by FESEM revealed that desirable nanoscale dispersion of UiO-66, suitable distribution across the membrane thickness as well as strong interface were achieved by using UiO-66 at moderate loadings. The permeability of pure CO2 and N2 gases were determined using constant volume/variable pressure method at 25°C and 6 bar. The results demonstrated that the permeability of aforementioned gases as well as the ideal selectivity in CO2/N2 increased by increasing the amount of MOFs loading. The results demonstrated that this membrane could be a promising candidate for practical CO2 separation. © CCM 2020 - 18th European Conference on Composite Materials. All rights reserved
  5. Keywords:
  6. Gas separation ; Mixed-Matrix Composite Membranes ; UiO-66 ; UV-curable acrylate polyurethane ; Carbon dioxide ; Composite membranes ; Curing ; Dispersions ; Field emission microscopes ; Film preparation ; Fourier transform infrared spectroscopy ; Polymer matrix composites ; Polyurethanes ; Scanning electron microscopy ; Separation ; Field emission scanning electron microscopy ; Gas separations ; Microscopic analysis ; Mixed matrix ; Mixed matrix membranes ; Polyurethane acrylates ; UV curable ; Gas permeable membranes
  7. Source: 18th European Conference on Composite Materials, ECCM 2018, 24 June 2018 through 28 June 2018 ; 2020