The rheological behavior and stability of Mg(OH)2 aqueous suspensions in the presence of sodium polyacrylate

Effect of different parameters on caustic magnesia hydration and magnesium hydroxide rheology: a review

“…remarkable shear thinning behavior with the increase in solid loading. As sufficient stabilization was successfully induced at 0.6 wt.% of NaPAA-PEO, reduction in the viscosity of effectively obtained with 40 wt.% Mg(OH) 2 suspensions although the sedimentation height decreased with an increase in the NaPAA-PEO dosage [45].…”

“…So as the dispersant dosage increases viscosity decreases, as it reached a minimum when the dispersant dosage exceeded 0.6 wt.% and generated lower sedimentation height. However, the flocculation will occur in the presence of excess or insufficient NaPA concentration [45]. remarkable shear thinning behavior with the increase in solid loading.…”

“…When the solid loading of the suspensions was less than 30 wt.%, there was slight shear thinning. When it exceeded 40 wt.%, there was a remarkable shear-thinning behavior indicating the presence of direct contacts between particles [45].…”

“…As shown in figure 17, the shear thinning behavior was observed in all the suspensions within the shear rate range and the apparent viscosity decreased as the temperature was increased. This is attributed to the fact that the increase in temperature causes activation of the adsorption of NaPA, resulting in a thicker adsorbed layer [45].…”

“…in the suspension causes the cloudy supernatant to become clear at high NaPA dosages as shown in figure 20[45].…”