1957
DOI: 10.1346/ccmn.1957.0060116
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Flow Properties of Dilute Montmorillonite Dispersions

Abstract: A viscometric study of dilute montmorillonite dispersions, truing for the most part dilution-type capillary viscometers supplemented by a falling-head capillary viscometer, has involved a determination of the concentration dependence of viscosity of such dispersions in both distilled and electrolyte-containing water. The results of the study have been interpreted in terms of a theory of incremental viscosity, and of the SchulzBlaschko (1941) equation. Use of this equation yields good extrapolations to zero con… Show more

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Cited by 8 publications
(8 citation statements)
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“…The changes resuited from deflocculation (Michaels and Bolger, 1962;van Olphen, 1951) and aggregation (Granquist, 1959;van Olphen, 1951), which, in turn, resulted from changes in the type of interparticle association. Following van Olphen's (1963Olphen's ( , 1964 simplified model, three types of aggregates of plate-like particles of clay mineral may be distinguished: edge-face (E-F), edgeedge (E-E), and face-face (F-F).…”
Section: Introduction Vanmentioning
confidence: 99%
“…The changes resuited from deflocculation (Michaels and Bolger, 1962;van Olphen, 1951) and aggregation (Granquist, 1959;van Olphen, 1951), which, in turn, resulted from changes in the type of interparticle association. Following van Olphen's (1963Olphen's ( , 1964 simplified model, three types of aggregates of plate-like particles of clay mineral may be distinguished: edge-face (E-F), edgeedge (E-E), and face-face (F-F).…”
Section: Introduction Vanmentioning
confidence: 99%
“…[2] Tables 1 and 2 in eq. [4] lead to V+ = 0.387 cm3 g-l for each of our clays. Since the reciprocal of V6 is the density, we again obtain d, = 2.6 g cm-3 for each of our clays.…”
Section: Results and Calculationsmentioning
confidence: 79%
“…As background for our research we cite a few previous investigations of viscosities of dilute suspensions of clays (1)(2)(3)(4)(5)(6) and evidence for interesting and potentially important interactions of different kinds of clays with each other in dilute suspensions (7,8).…”
Section: Introductionmentioning
confidence: 99%
“…Packter (1957) examined the structure of numerous complexes of montmorillonite-carboxymethylcellulose by viscosimetric means and contributed significantly to this method. His work in large part stimulated these studies; so, too, did the work of Granquist (1959). The many earlier studies of the rheology of drilling muds were concerned chiefly with yield points and thixotropy rather than with aggregate morphology of clay--organic complexes (Broughton and Hand, 1938;Norton, Johnson and Lawrence, 1944;Langston and Pask, 1958 ;Schulz, 1957).…”
mentioning
confidence: 99%
“…Earlier he had related the intrinsic viscosity to a function of the axial ratios of nonspherical particles, the relation being such that a high intrinsic viscosity implies a large axial ratio and is thus an expression of particle shape (Simha, 1940). When referred to clay particles the axial ratio is also called the dissymmetry and, as used by Packter (1956aPackter ( , 1956bPackter ( , 1957, Granquist (1959), and Kahn (1959), is the ratio of their average surface diameter to the platelet lattice thickness. Elongated particles and thin, flat particles are thus highly dissymmetrieal and have a correspondingly high intrinsic viscosity whereas particles or aggregates having a more compact form have lower dissymmetry.…”
mentioning
confidence: 99%