Gas separation properties of polyurethane- cyanuric chloride Mixed matrix membranes (MMMs)
Paper ID : 1242-MST2015-FULL
1Morteza Sadeghi *, 2Anahita Ronasi, 1mohammad dinari, 2Mahsa Salehi
1isfahan university of technology
2Isfahan university of technology
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.
Polyurethane, Mixed Matrix Membrane, Gas separation, cyanuric Chloride
Status : Paper Accepted (Poster Presentation)