This paper reports the results of a study on the rheological behavior of slips prepared using a low-plastic body with 0-4 wt% of alkali-activated bentonite added as strengthening agent. The presence of bentonite increases the plasticity of the slips and their viscosity and thixotropy, and addition of bentonite to about2 wt% does not greatly affect the rheological conditions that regulate the industrial steps. Higher percentages of bentonite strongly modify the rheology of the slips, and in order for them to be workable, it is necessary to reduce the solid content and/or amounts of deflocculant greater than 0.5 wt%.
Rheology of a Low-Plastic Ceramic Body Containing Na-Bentonite / FERNANDA ANDREOLA, N. M.; Manfredini, T.; Pellacani, G. C.; Pozzi, Paolo; Romagnoli, Marcello. - STAMPA. - 14(1-2):(1993), pp. 25-33. (Intervento presentato al convegno 94th Annual Meeting and the 1992 Fall Meeting of the Materials and Equipment and Whitewares Divisions tenutosi a Minneapolis, MN, USA nel 13 April 1992 through 16 April 1992).
Rheology of a Low-Plastic Ceramic Body Containing Na-Bentonite.
T. MANFREDINI;POZZI, Paolo;ROMAGNOLI, Marcello
1993
Abstract
This paper reports the results of a study on the rheological behavior of slips prepared using a low-plastic body with 0-4 wt% of alkali-activated bentonite added as strengthening agent. The presence of bentonite increases the plasticity of the slips and their viscosity and thixotropy, and addition of bentonite to about2 wt% does not greatly affect the rheological conditions that regulate the industrial steps. Higher percentages of bentonite strongly modify the rheology of the slips, and in order for them to be workable, it is necessary to reduce the solid content and/or amounts of deflocculant greater than 0.5 wt%.
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