Formation and morphology studies of different polysulfones-based membranes made by wet phase inversion process

Blanco, Jean‐François; Sublet, J.; Nguyen, Quang Trong; Schaetzel, Pierre

doi:10.1016/j.memsci.2006.06.011

Cited by 234 publications

(94 citation statements)

References 23 publications

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“…Among them, the full finger-like cavity case was experimentally observed in the membrane we produced and showed in Fig. 1(b); similar membrane morphologies for other cases can be found in the literature [29,36,37]. Table 5 shows the membrane characteristics including Darcy permeability, water permeance, finger void percentage, and membrane porosity.…”

Section: Different Finger-like Cavity Lengthssupporting

confidence: 72%

Water flow prediction for membranes using 3D simulations with detailed morphology

Shi

Printsypar

Iliev

et al. 2015

Journal of Membrane Science

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The membrane morphology significantly influences membrane performance. For osmotically driven membrane processes, the morphology strongly affects the internal concentration polarization. Different membrane morphologies were generated by simulation and their influence on membrane performance was studied, using a 3Dmodel. The simulation results were experimentally validated for two classical phase-inversion membrane morphologies: sponge-and finger-like structures.Membrane porosity and scanning electron microscopy image information were used as model input. The permeance results from the simulation fit well the experimentally measured permeances. Water permeances were predicted for different kinds of finger-like cavity membranes with different finger-like cavity lengths and various finger-like cavity sets, as well as for membranes with cylindrical cavities. The results provide realistic information on how to increase water permeance, and also illustrate that membrane's complete morphology is important for the accurate water permeance evaluation. Evaluations only based on porosity might be misleading, and the new 3D simulation approach gives a more realistic representation.

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Section: Different Finger-like Cavity Lengthssupporting

confidence: 72%

Water flow prediction for membranes using 3D simulations with detailed morphology

Shi

Printsypar

Iliev

et al. 2015

Journal of Membrane Science

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“…As the CBT increase, the solvent diffusion coefficient increases and system viscosity of polymer solution decreases 9 . High CBT enhance the mutual diffusivity between the solvent and nonsolvent during phase inversion and results in instantaneous demixing 8 .…”

Section: Resultsmentioning

confidence: 99%

“…High CBT enhance the mutual diffusivity between the solvent and nonsolvent during phase inversion and results in instantaneous demixing 8 . A reduction in macrovoid size (and number) occurred at low CBT, since the process of macrovoid growth by coalescence of polymer-poor phase droplets would be more difficult 9 . As expected, the contact angle decreases with the increases of the porosity due to the increase of the CBT.…”

Section: Resultsmentioning

confidence: 99%

Effect of coagulation bath temperature during preparation of PES hollow fiber supported liquid membrane for acetic acid removal

Sanmugam

Harruddin

Saufi

2017

Chem. Eng. Res. Bull.

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Acetic acid is a byproduct of acid hydrolysis of biomass during sugar recovery step in biofuel production. Acetic acid can inhibit the enzyme used during fermentation of sugar to the ethanol. Hollow fiber supported liquid membrane (SLM) was used in this study to remove acetic acid from aqueous solution. Liquid membrane was formulated using trioctylamine and 2-ethyl hexanol as a carrier and solvent, respectively. The hollow fiber membrane support was prepared from 15 wt.% polyethersulfone, 42.5 wt.% polyethyleneglycol 200 and 42.5 wt.% dimethylacetamide. The effect of coagulation bath temperature (CBT) at 30ºC, 40ºC and 50ºC during hollow fiber membrane spinning process was investigated. The porosity of the membrane increased as the CBT increased. The porosity of the membrane prepared using CBT of 30ºC, 40ºC and 50ºC were 35.7%, 46.7% and 61.6%, respectively. SLM process using hollow fiber membrane prepared at 50ºC of coagulation bath was able to remove 52% of acetic acid from the aqueous solution.

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“…To cope with this limitation, one good option is the sulfonation of a polymer with a very hydrophobic group so as to reduce the hydrophilicity of the final polymer, the polyethersulphone with Cardo group (PES-C) [46][47][48] which bears a five-member lactone ring and whose sulfonation can be done in a simple way. Among all the stability properties mentioned, this polymer can be casted by wet phase inversion methodology to obtain porous membranes be applied in filtration.…”

Section: Characteristcs Application Examplementioning

confidence: 99%

Bifunctional Polymer-Metal Nanocomposite Ion Exchange Materials

Domènech¹,

Bastos-Arrieta²,

Alonso³

et al. 2012

Ion Exchange Technologies

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Formation and morphology studies of different polysulfones-based membranes made by wet phase inversion process

Cited by 234 publications

References 23 publications

Water flow prediction for membranes using 3D simulations with detailed morphology

Water flow prediction for membranes using 3D simulations with detailed morphology

Effect of coagulation bath temperature during preparation of PES hollow fiber supported liquid membrane for acetic acid removal

Bifunctional Polymer-Metal Nanocomposite Ion Exchange Materials

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