The Effect of PVC/HIPS/ABS Blend Ratio on the Properties of Heterogeneous Cation Exchange Membrane
Paper ID : 1312-MST2015-FULL
Authors:
Marzieh Namdari1, Tavan Kikhavani *2, Seyed Nezameddin Ashrafizadeh3
1Research Lab for Advanced Separation Processes, Department of Chemical Engineering, Iran University of Science and Technology, Narmak, Tehran 1684613114, Iran.
2Ilam University
3Research Lab for Advanced Separation Processes, Department of Chemical Engineering, Iran University of Science and Technology (IUST)
Abstract:
Polyvinylchloride (PVC) /high impact polystyrene (HIPS) /acrylonitrile-butadiene-styrene (ABS) blend heterogeneous cation exchange membranes were made by solution casting method using tetrahydrofuran as solvent and cation exchange resin powder as functional group agents. Scanning electron microscopy was used to study the membrane structure and distribution of functional groups. The amount of ABS in all membranes kept the same and the effect of different ratio of PVC to HIPS on membrane properties was studied. By varying the blend ratio of polymer binder from 0:80:20 to 80:0:20 (PVC: HIPS: ABS) the electrical resistance of membranes was decreased and the conductivity was increased. Membranes with 40:40:20 blend ratio of polymer binder (PVC to HIPS to ABS) had the lowest water content and the most fixed ion concentration. The best ion exchange capacity was found at 0:80:20 blend ratio, however, its electrical resistance is higher than the other membranes.
Keywords:
Heterogeneous cation exchange membrane; Polymer binder; Ion exchange capacity, Conductivity; Electrodialysis
Status : Paper Accepted (Poster Presentation)