Polysulfone-ZrO(2) surface interactions. The influence on formation, morphology and properties of zirfon-membranes.
The interaction between polysulfone and ZrO(2) particles is studied as a function of the particle sintering temperature in order to understand the role of ZrO(2) on the formation, morphology, and properties of organo-mineral composite membranes. The adsorption between the sintered ZrO(2) and the constituents of polysulfone, 2,2-diphenylpropane and diphenyl sulfone, is investigated using high-pressure liquid chromatography. The influence of the polymer-ZrO(2) interaction on the flow behavior of the casting suspension is registered via viscoelastic measurements. The organo-mineral composite membranes are formed by immersion precipitation in water, and the resulting membrane morphology is analyzed using high-resolution SEM. The zirconia concentration in the top-layer of the composite structure is determined by XPS. Finally, the link between the polymer-filler interactions, the membrane formation process, and the resulting membrane structure and properties is established.
Aerts
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P
Process Technology,Materials technology, Flemish Institute for Technological Research (VITO), Boeretang 200, B-2400 Mol, Belgium.
Kuypers
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S
Genné
I
I
Leysen
R
R
Mewis
J
J
Vankelecom
I F J
IF
Jacobs
P A
PA
D000327:Adsorption; D003622:Dapsone / Q000737:chemistry; D008567:Membranes, Artificial; D010539:Permeability; D011108:Polymers / Q000737:chemistry*; D016062:Porosity; D013057:Spectrum Analysis; D013450:Sulfones / Q000737:chemistry*; D013535:Suspensions; D013696:Temperature; D014965:X-Rays; D015040:Zirconium / Q000737:chemistry*
D008567:Membranes, Artificial; D011108:Polymers; D013450:Sulfones; D013535:Suspensions; C017662:polysulfone P 1700; D003622:Dapsone; D015040:Zirconium; C028541:zirconium oxide