About: INFLUENCE OF PARTICLE SHAPE ON THE VISCOSITY OF KAOLIN SUSPENSIONS

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The influence of particle shape (aspect ratio) on the intrinsic viscosity is investigated, taking three Czech kaolin products (floated kaolins) as paradigmatic examples. An average aspect ratio is obtained for each kaolin from a comparison of particle size measurements using sedimentation and laser diffraction. The intrinsic viscosity is obtained by a multistep procedure: firstly, flow curves are recorded for each kaolin with the optimum deflocculant concentration, secondly, the (apparent) relative viscosities read off from the flow curves are plotted against the kaolin volume fraction and, thirdly, these data are fitted using the Krieger relation to obtain the intrinsic viscosity in the asymptotic dilute limit. It is shown that the data determined with the method proposed are within the Jeffery and Brenner bounds and that an average aspect ratio of about 20 (17-22) results in an intrinsic viscosity of about 10 (7-13), compared to 2.5 for spherical particles. Although currently the measurement precisi The influence of particle shape (aspect ratio) on the intrinsic viscosity is investigated, taking three Czech kaolin products (floated kaolins) as paradigmatic examples. An average aspect ratio is obtained for each kaolin from a comparison of particle size measurements using sedimentation and laser diffraction. The intrinsic viscosity is obtained by a multistep procedure: firstly, flow curves are recorded for each kaolin with the optimum deflocculant concentration, secondly, the (apparent) relative viscosities read off from the flow curves are plotted against the kaolin volume fraction and, thirdly, these data are fitted using the Krieger relation to obtain the intrinsic viscosity in the asymptotic dilute limit. It is shown that the data determined with the method proposed are within the Jeffery and Brenner bounds and that an average aspect ratio of about 20 (17-22) results in an intrinsic viscosity of about 10 (7-13), compared to 2.5 for spherical particles. Although currently the measurement precisi (en)
Title	INFLUENCE OF PARTICLE SHAPE ON THE VISCOSITY OF KAOLIN SUSPENSIONS INFLUENCE OF PARTICLE SHAPE ON THE VISCOSITY OF KAOLIN SUSPENSIONS (en)
skos:prefLabel	INFLUENCE OF PARTICLE SHAPE ON THE VISCOSITY OF KAOLIN SUSPENSIONS INFLUENCE OF PARTICLE SHAPE ON THE VISCOSITY OF KAOLIN SUSPENSIONS (en)
skos:notation	RIV/60461373:22310/09:00021596!RIV10-MSM-22310___
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM6046137302)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Gregorová, Eva Pabst, Willi
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola chemicko-technologická v Praze / Fakulta chemické technologie
http://linked.open...dnocenehoVysledku	319304
http://linked.open...ai/riv/idVysledku	RIV/60461373:22310/09:00021596
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	kaolin; particle shape; viscosity (en)
http://linked.open.../riv/klicoveSlovo	viscosity kaolin particle shape
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[586611683678]
http://linked.open...i/riv/nazevZdroje	Acta Geodynamica et Geomaterialia
http://linked.open...in/vavai/riv/obor	JH
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	6
http://linked.open...iv/tvurceVysledku	Gregorová, Eva Pabst, Willi Bouchet, Jean-Baptiste
http://linked.open...ain/vavai/riv/wos	000266019400009
http://linked.open...n/vavai/riv/zamer	Preparation and research of functional materials and material technologies using micro- and nanoscopic methods
issn	1214-9705
number of pages	9 (xsd:int)
http://localhost/t...ganizacniJednotka	22310

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