Comparison of extruded and pressed low cost ceramic supports for microfiltration membranes
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Otros documentos de la autoría: Lorente Ayza, Maria Magdalena; Mestre Beltrán, Sergio; Menéndez, M.; Sánchez-Vilches, Enrique
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Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7033
comunitat-uji-handle3:10234/8618
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Título
Comparison of extruded and pressed low cost ceramic supports for microfiltration membranesAutoría
Fecha de publicación
2015Editor
Copyright © ElsevierISSN
0955-2219; 1873-619XCita bibliográfica
LORENTE-AYZA, M.-M., et al. Comparison of extruded and pressed low cost ceramic supports for microfiltration membranes. Journal of the European Ceramic Society, 2015, vol. 35, no 13, p. 3681-3691.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://www.sciencedirect.com/science/article/pii/S0955221915300236Versión
info:eu-repo/semantics/submittedVersionPalabras clave / Materias
Resumen
A comparison has been made between ceramic supports for microfiltration membranes of the same composition obtained by pressing and by extrusion in terms of microstructure and properties.
The extruded supports ... [+]
A comparison has been made between ceramic supports for microfiltration membranes of the same composition obtained by pressing and by extrusion in terms of microstructure and properties.
The extruded supports displayed lower porosity and smaller pore size than pressed supports. The higher the clay content in the starting composition, the clearer this tendency became. In contrast, the difference tended to disappear when starch was added to the initial composition. The mechanical strength values followed a decreasing exponential variation with porosity, which was influenced by the starting composition and the shaping method.
Water permeability reflected the strong effect of the mean pore size. The supports synthesised from the composition with the higher clay content showed the lowest permeability, while those obtained from the composition including starch showed the highest value. A model derived from the Hagen–Poiseuille equation enabled the tortuosity values to be calculated. [-]
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Journal of the European Ceramic Society, 2015, vol. 35, no 13Derechos de acceso
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