Zeta Potential–Viscosity Relationship in Kaolinite Slurry in the Presence of Dispersants

Abstract

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Paste backfill of high-sulphide mill tailings using alkali-activated blast furnace slag: Effect of activator nature, concentration and slag properties

“…Ayadi et al, 2013;Ersoy et al, 2014;Kashani et al, 2014) and thus, reduce the w/c ratio in The effect of acidic and neutral slags activated with SH at 6-8 and 10 wt.% Na 2 O concentrations on the strength and stability of CPB.…”

Mechanism of GaN CMP Based on H2O2Slurry Combined with UV Light

“…Thus in the strong acid and alkali chemical environment, the oxidation corrosion reaction with GaN will proceed more easily and lead to higher MRR, which is similar to the feature shown in Figure 1. The pH value also affects the viscosity of the slurry, 22 as shown in Figure 3, which varies from 0.00086 pa • s to 0.001013 pa • s. However, the trend obviously differs from that in Figures 1 and 2. Consequently, the effect of pH value on viscosity is not the key factor influencing the material removal rate, and the change of GaN MRR in SiO 2 -based slurry is due to the changed mean particle size of SiO 2 and the different chemical environment for Ga 2 O 3 to dissolve.…”

Using Sulfobutylated and Sulfomethylated Lignin as Dispersant for Kaolin Suspension

“…Similar behavior was observed in another study in the dispersion of kaolin with lignin-acrylamide polymer when the elevated negativity of zeta potential and a higher level of dispersion was observed at pH 10 than other pHs [ 30 ]. The results also showed that the lignin derivatives were not sufficiently strong to disperse kaolin particles under acidic pH due to the strong interaction between the positively charged edge surfaces and negatively charged basal surfaces of kaolin particles [ 58 ]. However, they were very effective in dispersing the particles at neutral pH, at which the edge surfaces became partially negatively charged, and with increasing pH, kaolin particles attained a state of homogeneity in charge, i.e., having negative at both edge and basal surfaces [ 59 ].…”