Gas separation properties of polyurethane- cyanuric chloride Mixed matrix membranes (MMMs)
Paper ID : 1242-MST2015-FULL
Authors:
1Morteza Sadeghi *, 2Anahita Ronasi, 1mohammad dinari, 2Mahsa Salehi
1isfahan university of technology
2Isfahan university of technology
Abstract:
The effect of cyanuric Chloride (CC) particles on the gas separation properties of polyurethane membrane has been studied in this research. Polyurethane was synthesized by bulk two-step polymerization, including polytetramethylene-glycol (PTMG)/ isophorene diisocyanate (IPDI)/ 4,9- dioxa-1,12-dodecanediamine in mole ratio of 1:3:2. Polyurethane and polyurethane- cyanuric chloride MMMs were prepared by solution blending and casting method. Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD) and Fourier Transform Infrared spectroscopy (FTIR) were employed to characterize the prepared MMMs. Gas permeation properties of PU and PU-CC composite membranes with CC content up to 10 wt % were investigated for pure N2, O2, CH4 and CO2 gases at 10 bar and 30℃. Obtained results show that, the permeability of all gases increase by cyanuric chloride content in PU. The permeability of N2, O2, CH4 and CO2 gases in MMM contains 10wt% CC in comparison to pure PU increase from 3.5, 8.8, 11.8 and 90 barrer to 3.75, 9.1, 12.7 and 112.9 barrer respectively. Furthermore the CO2/N2 selectivity and CO2/CH4 selectivity increased from 25 and 7.9 to 30 and 8.9 in pure polyurethane to PU-CC (10 wt%) respectively. The obtained results indicate the reasonable enhancement in gas separation properties of synthesized Pu by addition of CC particles.
Keywords:
Polyurethane, Mixed Matrix Membrane, Gas separation, cyanuric Chloride
Status : Paper Accepted (Poster Presentation)