Effect of three different PEO-containing additives on the fouling behavior of PES-based ultrafiltration membranes

Date

2015-08-17

Author

Kaltali, G.
Kalıpçılar, Halil
Çulfaz Emecen, Pınar Zeynep

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

38
views

0
downloads

PES-based hollow fiber membranes were fabricated using three different PEO-containing additives (PEG-10 k, Pluronic (R) F127 and Triton (R) X100) in the starting polymer dope. All additives enhanced pure water permeance significantly, which was attributed to the increased porosity and pore connectivity caused by the hydrophilicity of the additives. ATR-FTIR analyses of the membrane surfaces after fabrication and after storage in water revealed that all three additives remain in the membrane matrix after fabrication and do not leach out after 60 days. The fouling behavior of the three membranes containing additives and the pure PES membrane was investigated in constant permeate flux filtrations. All three additives decreased the degree of fouling while the membrane with PEG experienced more adsorptive fouling in the first cycle compared to the other two membranes with additives. The fouling reversibility was also better with the two amphiphilic additives Triton and Pluronic. The better fouling behavior with these additives is explained with their amphiphilic nature, which probably results in PEO brushes on the membrane surfaces regardless of the molecular weight of the additive.

Subject Keywords

Triton, Hollow fiber, Ultrafiltration, Poly(ethylene oxide), Membrane fouling

URI

https://hdl.handle.net/11511/57154

Journal

SEPARATION AND PURIFICATION TECHNOLOGY

DOI

https://doi.org/10.1016/j.seppur.2015.06.034

Collections

Department of Chemical Engineering, Article

Suggestions

OpenMETU
Core

Effect of preparation parameters on the performance of conductive composite gas separation membranes Gulsen, D; Hacarloglu, P; Toppare, Levent Kamil; Yılmaz, Levent (2001-02-15) Mixed matrix composite membranes of a conducting polymer, polypyrrole (PPy), and an insulating polymer, polybisphenol-A-carbonate (PC) were prepared by a combined in-situ polymerization and solvent evaporation. Mixed matrix composite membranes were synthesized to combine the good gas transport properties of conductive polymer, PPy, with good mechanical properties of PC.
Effect of Pd loading in Pd-Pt bimetallic catalysts doped into hollow core mesoporous shell carbon on performance of proton exchange membrane fuel cells Ficicilar, Berker; BAYRAKÇEKEN YURTCAN, Ayşe; Eroğlu, İnci (2009-08-01) A significantly active Pd-Pt/carbon electrocatalyst for polymer electrolyte membrane fuel cells was synthesized by microwave irradiation using a hollow core mesoporous shell (HCMS) carbon as catalyst support that was prepared by template replication of core/shell spherical silica particles and two different carbon precursors. Pt/Pd percent weight ratios on carbon support were varied as 20/0, 15/5, 10/10, 5/15 to 0/20. As the average pore diameter of the carbon support was increased from 3.02 nm to 3.90 nm b...
Effect of boron containing materials on flammability and thermal degradation of polyamide-6 composites containing melamine cyanurate Yılmaz, Ayşen; Bayramli, Erdal (2011-05-01) Three different boron containing materials, zinc borate (ZnB), borophosphate (BPO(4)), and boron and silicon containing oligomer (BSi), were used to improve the flame retardancy of melamine cyanurate (MC) in a polyamide-6 (PA-6) matrix. The combustion and thermal degradation characteristics were investigated using limiting oxygen index (LOI), UL-94 standard, thermogravimetric analysis-Fourier transform infrared spectroscopy (TGA-FTIR), differential scanning calorimeter (DSC), and scanning electron microscop...
Effects of polyamide 6 incorporation to the short glass fiber reinforced ABS composites: an interfacial approach Ozkoc, G; Bayram, Göknur; Bayramli, E (2004-12-01) The properties of 30 wt% short glass fiber (SGF) reinforced acrylonitrile-butadiene-styrene (ABS) terpolymer and polyamide 6 (PA6) blends prepared with extrusion were studied using the interfacial adhesion approach. Work of adhesion and interlaminar shear strength values were calculated respectively from experimentally determined interfacial tensions and short beam flexural tests. The adhesion capacities of glass fibers with different surface treatments of organosilanes were evaluated. Among the different s...
Effect of Boron Phosphate on the Mechanical, Thermal and Fire Retardant Properties of Polypropylene and Polyamide-6 Fibers DOĞAN, Mehmet; Bayramlı, Erdal (Springer Science and Business Media LLC, 2013-10-01) The effect of boron phosphate (BPO4) nanoparticles on the mechanical, thermal, and flame retardant properties of polypropylene (PP) and polyamide 6 (PA-6) fibers are investigated by tensile testing, thermogravimetric analysis (TGA), differential scanning calorimeter (DSC), and micro combustion calorimeter (MCC). The addition of BPO4 reduces the mechanical properties of the both PP and PA-6 fibers. According to the TGA results, the addition of BPO4 does not change the thermal behavior of PP fiber and slightl...

Citation Formats

G. Kaltali, H. Kalıpçılar, and P. Z. Çulfaz Emecen, “Effect of three different PEO-containing additives on the fouling behavior of PES-based ultrafiltration membranes,” SEPARATION AND PURIFICATION TECHNOLOGY, pp. 21–28, 2015, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/57154.