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Viscosity improvement of an Argentine kaolin by ionic treatment
AbstractAlthough kaolins from the provinces of Chubut and Santa Cruz (in Argentina's Patagonia) exhibited some promising characteristics for their use as paper-coating pigments, the rheological properties of their high solids suspensions preclude their industrial utilization. Verwey-Overbeek's theory provides the information necessary to improve the flow properties of suspensions by means of ionic treatment. Saturation with a monovalent ion — such as Na+ — generates an energy barrier which prevents flocculation and significantly improves the viscosity of suspensions so that they compare favorably with coating clays from Georgia in the U.S.A.
Viscosity improvement of an Argentine kaolin by ionic treatment
AbstractAlthough kaolins from the provinces of Chubut and Santa Cruz (in Argentina's Patagonia) exhibited some promising characteristics for their use as paper-coating pigments, the rheological properties of their high solids suspensions preclude their industrial utilization. Verwey-Overbeek's theory provides the information necessary to improve the flow properties of suspensions by means of ionic treatment. Saturation with a monovalent ion — such as Na+ — generates an energy barrier which prevents flocculation and significantly improves the viscosity of suspensions so that they compare favorably with coating clays from Georgia in the U.S.A.
Viscosity improvement of an Argentine kaolin by ionic treatment
Galazzo, Jorge L. (Autor:in) / Depetris, Pedro J. (Autor:in) / Cerro, Ramon L. (Autor:in) / Murray, Haydn H. (Autor:in)
Applied Clay Science ; 1 ; 367-373
21.04.1986
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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