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Rheological properties of palygorskite–bentonite and sepiolite–bentonite mixed clay suspensions

Christidis Georgios, Yadeta C. Chemeda, Eleni Koutsopoulou, Tauhid Belal Khan, N.M. Tauhid Khana, Vicky Hatzistamou

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URIhttp://purl.tuc.gr/dl/dias/7DC4B4E7-5167-4E3C-B6FE-1985C2D86FDB-
Αναγνωριστικόhttps://doi.org/10.1016/j.clay.2013.12.013-
Γλώσσαen-
Μέγεθος9 pagesen
ΤίτλοςRheological properties of palygorskite–bentonite and sepiolite–bentonite mixed clay suspensionsen
ΔημιουργόςChristidis Georgiosen
ΔημιουργόςΧρηστιδης Γεωργιοςel
ΔημιουργόςYadeta C. Chemedaen
ΔημιουργόςEleni Koutsopoulouen
ΔημιουργόςTauhid Belal Khanen
ΔημιουργόςN.M. Tauhid Khanaen
ΔημιουργόςVicky Hatzistamouen
ΕκδότηςElsevieren
ΠερίληψηThis study examines the influence of layer charge and smectite content on the rheological properties of mixed bentonite–palygorskite suspensions. Eight bentonite samples containing smectite with layer charge ranging between 0.38 and 0.54 e/huc were used to prepare 5% w/v mixed palygorskite–bentonite aqueous suspension at pH 7. The influence of smectite on the apparent viscosity and yield point of palygorskite suspensions depends on the proportion of the smectite in themixture and the layer charge and charge localization of the smectite. The interaction between the two endmember clayminerals ismaximumat low percentage (10 to 20%) of bentonite in the mixture. Low charge and high charge smectite tended to improve and deteriorate, respectively, the yield point and apparent viscosity of the suspension. This behaviour seemed to be related to the influence of layer charge of smectite on the degree of delamination and the thickness of smectite quasicrystals,which consequently determine the number of particles involved in the interaction and the strength of particle–particle linkages.en
ΤύποςPeer-Reviewed Journal Publicationen
ΤύποςΔημοσίευση σε Περιοδικό με Κριτέςel
Άδεια Χρήσηςhttp://creativecommons.org/licenses/by/4.0/en
Ημερομηνία2015-10-01-
Ημερομηνία Δημοσίευσης2014-
Βιβλιογραφική ΑναφοράY. C. Chemeda , G.E. Christidis , N.M. T. Khana, E. Koutsopoulou , V. Hatzistamou , V.C. Kelessidis ,"Rheological properties of palygorskite– bentonite and sepiolite–bentonite mixed clay suspensions ",Ap. C. Sc. ,vol. 90 ,pp.165–174 ,2014.doi :10.1016/j.clay.2013.12.013en

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