• Membrane and Water Treatment
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• v.6 no.2
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• pp.95-102
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• 2015

The presented research is about characterization of Cellulose Triacetate (CTA) based Polymer Inclusion Membranes (PIMs) which incorporated the commercial extractant Aliquat 336, Tributylphosphate (TBP) as modifier and 2-Nitro Phenyl Pentyl Ether (NPPE) as plasticizer, for the preparation of the membranes. Chemical and physical characteristics of the synthesized membranes especially membrane thickness and side difference effects were investigated. Different surface structures and membrane thickness affect the extraction efficiency of membranes. Membrane extraction experiments were studied where the glass-facing surface of the membranes placed next to feed phase and the air-facing surface to stripping phase. The membrane was characterized by means of AFM, FT-IR and SEM.

• Proceedings of the Membrane Society of Korea Conference
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• 2003.11a
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• pp.214-218
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• 2003

• Proceedings of the Membrane Society of Korea Conference
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• 2003.05a
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• pp.75-78
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• 2003

• Proceedings of the Membrane Society of Korea Conference
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• 1999.04a
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• pp.45-48
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• 1999

• Proceedings of the IEEK Conference
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• 2001.10a
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• pp.459-465
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• 2001

The work was initiated to investigate the electrokinetic properties of a MF membrane using streaming potential measurement when oil emulsion was separated. The original and the surface modified PP membrane were examined by using flux and streaming potentials for the characterization of fouling phenomena of the PP membrane. The membrane surface was modified by a radiation grafting technique. The streaming potentials of the PP membranes were varied the charge distribution modifying by changing the pH, ionic strength, and concentrations the surfactants in oil emulsion. The shiftness to the more positive values of isoelectric point of the PP membrane was significant especially in the presence of surfactants or the surface modification.

• Proceedings of the Membrane Society of Korea Conference
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• 2004.05a
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• pp.166-169
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• 2004

Microfiltration membranes were prepared from aromatic polyethersulfone (PES) polymer, using aprotic solvent (N-methyl-2-pyrrolidone, NMP) and non-solvent additive (2-methoxy ethanol, 2-ME) by the phase inversion co-process of the vapor-induced phase inversion (VIPI) and the nonsolvent-induced phase inversion (NIPI). According to the change of the additive amount, the solvent amount and the relative humidity, membrane characterization was studied. The non-solvent additive in casting solution played an important role in membrane morphology. During the vapor-induced phase inversion, the relative humidity led to water sorption on the surface of casting dope at which pore formation was generated. The prepared membranes were characterized by scanning electron microscope observations, measurements of capillary flow porometer and pure water flux (PWP). Also the thermodynamic and kinetic properties of membrane-forming system were studied through coagulation value, light transmittance and viscosity.

• Proceedings of the Membrane Society of Korea Conference
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• 1993.10a
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• pp.1-6
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• 1993

Pure silicalite membranes were prepared on porous sintered stainless steel and aluinina supports. The silicalite membrane showed the high alcohol permselectivity, indicating no existence of cracks within the membrane. The high alcohol permselectivity is attributable to the high hydrophobic character of silicalite.

• Proceedings of the Membrane Society of Korea Conference
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• 2000.10a
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• pp.3-19
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• 2000

No Abstract, See Full Text

• Proceedings of the Membrane Society of Korea Conference
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• 2001.11a
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• pp.55-58
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• 2001

• Proceedings of the Membrane Society of Korea Conference
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• 1999.04a
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• pp.75-77
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• 1999