Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Effects of polymers and clay concentrations on the viscosities of organo-smectite dispersions under high pressure
AbstractThe viscosities of organo-smectite dispersions in mineral oil with and without the addition of a high molecular weight copolymer of sodium acrylate and acrylamide, were measured at elevated pressures by using a falling-body type viscometer. The increase in viscosity of the organo-smectites as a function of clay concentration under pressure generally follows the Arrhenius equation. The viscosities of mineral oil and organo-smectites in the presence and absence of the polymer increase exponentially with pressure. At the lower concentrations of clay the increase in viscosity in these systems can be placed in the order: mineral oil < dimethyldioctadecylammonium (DMDO)-montmorillonite ∼ dimethylodioctadecylammonium (DMDO)-hectorite ∼ dimethyloctadecylbenzylammonium (DMOB)-montmorillonite < DMDO montmorillonite + polymer ∼ DMDO-hectorite + polymer < DMOB-montmorillonite + polymer.
Effects of polymers and clay concentrations on the viscosities of organo-smectite dispersions under high pressure
AbstractThe viscosities of organo-smectite dispersions in mineral oil with and without the addition of a high molecular weight copolymer of sodium acrylate and acrylamide, were measured at elevated pressures by using a falling-body type viscometer. The increase in viscosity of the organo-smectites as a function of clay concentration under pressure generally follows the Arrhenius equation. The viscosities of mineral oil and organo-smectites in the presence and absence of the polymer increase exponentially with pressure. At the lower concentrations of clay the increase in viscosity in these systems can be placed in the order: mineral oil < dimethyldioctadecylammonium (DMDO)-montmorillonite ∼ dimethylodioctadecylammonium (DMDO)-hectorite ∼ dimethyloctadecylbenzylammonium (DMOB)-montmorillonite < DMDO montmorillonite + polymer ∼ DMDO-hectorite + polymer < DMOB-montmorillonite + polymer.
Effects of polymers and clay concentrations on the viscosities of organo-smectite dispersions under high pressure
Das Kanungo, J.L. (Autor:in) / McAtee, James L. Jr. (Autor:in)
Applied Clay Science ; 1 ; 285-293
20.11.1985
9 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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