The effect of Hexamethylenetetramine Dicyanamide Cadmium (MOF1) particles on the gas separation propertyies of polyurethane-urea membrane
Paper ID : 1308-MST2015-FULL
Sahar Favakeh1, Morteza Sadeghi *1, Hossein Chiniforoshan1, Elmira Tavasoli1, najme gholamipoor2, Leila Tabrizi2, ali pournaghshband2
1isfahan university of technology
2Isfahan university of technology
In this study the effect of Hexamethylenetetramine Dicyanamide Cadmium nanostructured metal organic frame work (MOF1) particles on the permeation property of polyurethane-urea membrane was investigated. The permeability of oxygen, nitrogen, methane and carbon dioxide were evaluated through prepared MMMs. Membranes were prepared by solvent evaporation method using phase separation. Gas separation was conducted at 10 barg and 30 ◦C. The prepared membranes were characterized using FTIR, XRD and SEM analyses. The results showed that nano Hexamethylenetetramine Dicyanamide Cadmium particles distributed uniformly through the membrane. It is due to the desirable mixing of the MOF1 particles and polymer matrix because of the good compatibility between polymer and MOF1 particles. The obtained results showed that in MMM containing 2.5%wt MOF1 particles the permeability of carbon dioxide, methane, oxygen and nitrogen gases increased from 74.09, 10.06, 8.09 and 3.36 barrer, to 140.00, 15.49, 12.99 and 4.60 barrer respectively. In other word, the permeability of carbon dioxide, methane, oxygen and nitrogen gases increased 90%, 54%, 61% and 37% respectively. Also, it was observed that by entering only 2.5 wt% of MOF1 nanoparticles to the PUU matrix, the CO2/CH4, CO2/N2 and O2/N2 selectivities were increased from 7.36, 22.07 and 2.41 to 9.04, 30.44 and 2.82 respectively.
Gas separation, Polyurethane-urea, Membrane, Nanocomposite
Status : Paper Accepted (Poster Presentation)