Gas Transport Properties of Pebax®1657/Matrimid 5218 Blend Membranes
- سال انتشار: 1393
- محل انتشار: پانزدهمین کنگره ملی مهندسی شیمی ایران
- کد COI اختصاصی: ICHEC15_099
- زبان مقاله: انگلیسی
- تعداد مشاهده: 1154
نویسندگان
Chemical Engineering Dept., University of Kashan., Kashan,Iran
Polymer Science and Technology Division, Research Institute of Petroleum Industry (RIPI), Tehran, Iran
Polymer Science and Technology Division, Research Institute of Petroleum Industry (RIPI), Tehran, Iran
Chemical Engineering Dept., University of Kashan., Kashan,Iran
چکیده
Polymer blending is a multipurpose technique available for associating beneficial properties of two or more components in a single one. This study reports on several polymer blend membranes fabricated for improving separation of CO2/CH4 gas pair using commercially available polyamideb- ethylene oxide (Pebax®1657) and Matrimid 5218 polymers in the presence of dimethyl acetamide (DMAc) as solvent. These membranes were prepared by solution-casting method in a clear and homogeneous film form. The prepared pristine and alloyed ebax®1657/Matrimid 5218 membranes were characterized by scanning electron microscope (SEM). Effect of different wt.% loading Matrimid (10-40 wt.%) in Pebax® matrix on membrane performances were also studied. Investigating gas transport properties of these blend membranes indicated their improved selectivity compared to those of the pristine Pebax®1657, be it with less permeabilities. For instance, at 10 wt.% loading Matrimid in Pebax® matrix, CO2/CH4 selectivity was enhanced by about 65% while permeability declined by about 22%.کلیدواژه ها
Gas separation, polymer blend membrane, Pebax®, Matrimidمقالات مرتبط جدید
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