Manufacturing and Study of Polymeric Membranes for O2/ N2 Separation
Ahmad RAMAZANI S.A., Abbas Mosavi, Reza Rosta Azad
Sharif University of Technology
Iran

Keywords: membranes , polymeric , permeability

---

In this work, some different polymeric membranes for increasing oxygen concentration in passing air from them
were fabricated and studied. For membrane fabrication, low or non-crystalline polymeric materials such as
PC, EVA, PVC and phase inversion process has been used. Solutions of mentioned polymer materials with
various concentrations in some solvents (i.e. Chloroform, Tetrahydrofuran, Cyclohexanone, Dimethylfomamide)
are prepared and suitable films were fabricated by doctor blade casting method in controlled conditions. The morphology
of fabricated membranes has been studied by Scanning Electron Microscopy (SEM). Oxygen and nitrogen relative
permeability for different membranes were also investigated. The results show that EVA film has suitable permeability
and selectivity for separation of these gases.