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Preparation and Characterization of Biodegradable Blend Membranes of PBS/CA
Authors:Vahideh Ghaffarian  Seyed Mahmoud Mousavi  Masoumeh Bahreini  Mahnaz Afifi
Institution:1. Department of Chemical Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, PO Box 91775–1111, Mashhad, Iran
2. Membrane Processes and Membrane Research Center, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
3. Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
Abstract:Asymmetric membranes of cellulose acetate/poly (butylene succinate) were prepared using immersion precipitation technique. The blended membranes were characterized by contact angle, scanning electron microscopy, thermogravimetric analysis, degradation test in compost and dynamic test of raisin wastewater treatment. Results demonstrated that hydrophilicity of cellulose acetate was enhanced by addition of poly (butylene succinate) up to 50 %. Furthermore, polymeric composition affects cross sectional structure of the membranes by controlling formation of macrovoids. Addition of poly (butylene succinate) improved the membranes thermal stability and obviously their degradation in compost. The prepared membranes were able to reject the wastewater pollutants properly.
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