Viscosity of Delaminated Kaolin through Intercalation of Potassium Acetate into its Layers
In this work, the effects of potassium acetate(KAc) intercalation on particle size and viscosity of delaminated kaolin were investigated. It was found that the KAc intercalation in the presence of a small quantity of water possessed more efficiencies. Through inserting kaolin layers with potassium acetate, the average particle size of delaminated kaolin decreased from 5.48μm to 2.21μm, moreover, the viscosity at solid content of 60% decreased distinctly, from more than 10000 mPa•s to less than 200 mPa•s. The result also indicated that the calcined kaolin was delaminated by KAc efficiently, the particle size decreased greatly without harming to the dispersion ability of kaolin suspension.
Helen Zhang and David Jin
L. H. Zhao et al., "Viscosity of Delaminated Kaolin through Intercalation of Potassium Acetate into its Layers", Advanced Materials Research, Vol. 366, pp. 59-63, 2012