Preparation and Characterization of PES and PA Composite Membranes for Air Separation at Low Pressures
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S. S. Madaeni
In this study poly(ether sulphone) (PES) asymmetric membranes and Polyamide (PA) composite membranes were used for gas separation at low pressures. The effect of PES concentration, contact time of sebacoyldichloride, addition of 1,6-hexaethylene diamine solution and PA active layer on the structures of PES support layer were studied. Changing the structure of PES membrane from channel-like to sponge form increased the selectivity in the gas separation process. However, this structural variation caused a considerable decline in gas permeability. The characteristics of top layer depend on the porosity and compactness of sub-layers structure. Active layer formation on the surface of support structure at PES concentrations of more than 25 %wt improved the oxygen selectivity considerably. The optimum conditions for preparation of PA active layer through interfacial polymerization process were elucidated in this paper. The PA composite membrane prepared at the PES concentration of 25 wt% and monomer concentration of 1 wt% provided the highest selectivity for oxygen enrichment process.
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Articles in the same Issue
- Contents
- Contents
- Regular Contributed Articles
- Climatic Ageing of Components of Polymer Based Electrochromic Devices
- Previous Experimental Polymer Rheology Versus Flow Induced Crystallization
- Studies on the Effect of Pellet Size on Positive Conveying in Helically Grooved Single Screw Extruders
- Distortion of Interfaces in a Multilayer Polymer Co-extrusion Feedblock
- Preparation and Characterization of PES and PA Composite Membranes for Air Separation at Low Pressures
- Impact of Feed Opening Width and Position on PVC Extrusion Process Effectiveness
- Irradiation Strategy for Laser Transmission Welding of Thermoplastics Using High Brilliance Laser Source
- Polytetrafluoroethylene Paste Extrusion: A Fibrillation Model and Its Relation to Mechanical Properties
- Improving Weld Line Strength of Fiber Reinforced Plastics By Means of A “Flow Disruptor”
- Application of the Network Simulation Method to Flat Dies with Inverted Prelands
- In Situ Polymerization of PET in the Presence of Pristine and Organo-modified Clays
- Rapid Communications
- Accurate Bio-scaling Processing of Micro Structured Shark Skin Based on Swelling of Polydimethylsiloxane
- PPS News
- PPS News
- Seikei Kakou Abstracts
- Seikei Kakou Abstracts
Articles in the same Issue
- Contents
- Contents
- Regular Contributed Articles
- Climatic Ageing of Components of Polymer Based Electrochromic Devices
- Previous Experimental Polymer Rheology Versus Flow Induced Crystallization
- Studies on the Effect of Pellet Size on Positive Conveying in Helically Grooved Single Screw Extruders
- Distortion of Interfaces in a Multilayer Polymer Co-extrusion Feedblock
- Preparation and Characterization of PES and PA Composite Membranes for Air Separation at Low Pressures
- Impact of Feed Opening Width and Position on PVC Extrusion Process Effectiveness
- Irradiation Strategy for Laser Transmission Welding of Thermoplastics Using High Brilliance Laser Source
- Polytetrafluoroethylene Paste Extrusion: A Fibrillation Model and Its Relation to Mechanical Properties
- Improving Weld Line Strength of Fiber Reinforced Plastics By Means of A “Flow Disruptor”
- Application of the Network Simulation Method to Flat Dies with Inverted Prelands
- In Situ Polymerization of PET in the Presence of Pristine and Organo-modified Clays
- Rapid Communications
- Accurate Bio-scaling Processing of Micro Structured Shark Skin Based on Swelling of Polydimethylsiloxane
- PPS News
- PPS News
- Seikei Kakou Abstracts
- Seikei Kakou Abstracts