Journal
CHEMICAL ENGINEERING & TECHNOLOGY
Volume 43, Issue 7, Pages 1451-1460Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ceat.201900262
Keywords
Coating speed; Dip coating technique; Multilayer composite membrane; Solution concentration
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Funding
- Sahand University of Technology (SUT)
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Polyether block amide (PEBA) polymeric layers were prepared on polysulfone (PSf) supports via dip coating. The effects of the coating speed and the solution concentration on the membrane performance were studied. The membranes were characterized by scanning electron microscopy, Fourier transform infrared spectra, and gas permeation. The coating speed was adjusted in the range of 0.32-0.48 cm s(-1) at a solution concentration of 3 wt % to obtain suitable membranes so that the CO2 permeance and the CO2/N-2 selectivity increased by more than three and ten times, respectively, compared to other speed ranges. Statistical analysis also showed that the effect of the interaction between solution concentration and coating speed is more considerable than the separate effects of both factors.
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