Author/Authors :
S. M. Hosseini Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak , S. S. Madaeni Membrane Research Centre, Department of Chemical Engineering, Faculty of Engineering, Razi University , A. R. Heidari Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak , A. R. Moghadassi Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak
كليدواژه :
Cation exchange membrane , Membrane fabrication , Potassium perchlorate , Characterization
چكيده لاتين :
In this research, polyvinylchloride/ styrene-butadiene-rubber blend heterogeneous cation exchange
membranes were prepared by solution casting technique using tetrahydrofuran as solvent and
cation exchange resin powder as functional groups agent. Potassium perchlorate was also
employed as an additive in membrane fabrication. The effect of additive concentration in the
casting solution on properties of home-made membranes was studied. SEM images showed
uniform particles distribution and also relatively uniform surfaces for the membranes. Moreover,
images revealed that addition of KClO4 in the casting solution led to an improvement in resin
particles distribution in the membranes matrix. The increase of KClO4 loading in casting solution
caused to increase in membranes water content. The membrane permselectivity and transport
number were increased initially by increase of additive concentration up to 8 %wt and then they
showed decreasing trend with higher additive content. The areal electrical resistance of the
membranes was also initially enhanced with increase in additive concentration to 16 %wt and then
it began to decrease by more additive loading.
