A three-phase polymer/liquid/solid poly(amide-b-ethylene oxide) (PEBA)/polyethylene glycol(PEG)/zeolite X was fabricated and its gas permeability was investigated. CH4permeability of neat PEBA,two-phase PEBA/NaX and three-phase PEBA/PEG/NaX were compared for different pressures within therange of 2–8 bar. The fabricated membranes were structurally characterized by X-ray diffraction (XRD),scanning electron microscopy (SEM) and atomic force microscope (AFM). SEM images showed that thezeolite grain size was homogeneously smaller than 2 m. They also revealed the dense structures of themembranes and no pores were observed at these magnifications. AFM surface images indicated that themembranes surface roughness increased significantly with increasing zeolite loading. CH4permeabilityfor single-, two- and three-phase membranes decreased from 3.13 to 2.81, from 3.96 to 2.31 and from2.67 to 2.14 barrer, respectively.
کلید واژگان :PEBAX; Mixed matrix membrane; CH4; Zeolite NaX; Nano composite
ارزش ریالی : 600000 ریال
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