Ιδρυματικό Αποθετήριο
Πολυτεχνείο Κρήτης
Πολυτεχνείο Κρήτης
EN
|
EL
| URI | http://purl.tuc.gr/dl/dias/F7A80181-C6D0-451F-844A-9DD0CFF3B180 | - |
| Αναγνωριστικό | https://doi.org/10.1016/j.clay.2007.01.011 | - |
| Γλώσσα | en | - |
| Μέγεθος | 10 | en |
| Τίτλος | Effect of pH and electrolyte on the rheology of aqueous Wyoming bentonite dispersions | en |
| Δημιουργός | Kelesidis Vasilis | en |
| Δημιουργός | Κελεσιδης Βασιλειος | el |
| Δημιουργός | Christina Tsamantaki | en |
| Δημιουργός | Dalamarinis Panayiotis | en |
| Εκδότης | Elsevier | en |
| Περιγραφή | Δημοσίευση σε επιστημονικό περιοδικό | el |
| Περίληψη | The influence of pH between 7.5 and 10.5, for 5% and 6.42% aqueous Wyoming bentonite dispersions and of NaCl for 2%, 5% and 6.42% of Wyoming-bentonite in water for a range of salt concentrations up to 1.0 M has been investigated. The dispersions were prepared according to American Petroleum Institute procedures and rheological data were obtained with a Couette viscometer. Data were represented very well by the Herschel–Bulkley model for all experimental conditions. The effect of pH and electrolyte concentration is significant, affecting the type of association of the montmorillonite particles thus influencing the rheology, the three Herschel–Bulkley parameters and the apparent viscosity. There is a maximum of the yield stress, flow consistency index and apparent viscosity at the natural pH of the dispersions, while there is monotonous decrease of these parameters with increasing salt concentration. Various scenarios of particle associations are discussed and comparison with similar data from literature is also performed. | en |
| Τύπος | Peer-Reviewed Journal Publication | en |
| Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | el |
| Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
| Ημερομηνία | 2015-10-29 | - |
| Ημερομηνία Δημοσίευσης | 2007 | - |
| Θεματική Κατηγορία | Wyoming bentonite dispersions | en |
| Θεματική Κατηγορία | Effect of pH | en |
| Θεματική Κατηγορία | Effect of salt | en |
| Θεματική Κατηγορία | Herschel–Bulkley | en |
| Βιβλιογραφική Αναφορά | V.C. Kelessidis, C. Tsamantaki, P. Dalamarinis, " Effect of pH and electrolyte on the rheology of aqueous Wyoming bentonite-dispersions," Applied Clay Science, vol. 38, no. 1-2, pp. 86–96, Dec. 2007. doi: 10.1016/j.clay.2007.01.011 | en |
Copyright © DIAS 2013
