Effect of Solid-Liquid Density Ratio on Viscosity of PMMA/HDPE Suspension
LIANG Jie1,2, GENG Dianqiao1,2, ZHANG Qun1,2
1 Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110819, China 2 School of Metallurgy, Northeastern University, Shenyang 110819, China
Abstract: The solid-liquid density ratio is a key parameter to affect the viscosity of suspension.It is of great significance to predict the viscosity of suspension for material flotation. Based on the experimental method, the effect of solid-liquid density ratio of two different densities PMMA/HDPE particle suspensions on the viscosity of the suspension is studied. The results show that under the same particle fraction, the viscosity of the suspension decreases with the increase of solid-liquid density ratio; and the viscosity growth rate under the low solid volume fraction is lower than the viscosity growth rate under the high solid volume fraction; the smaller the particle size, the viscosity of the suspension the faster the increase in the solid-liquid density ratio is reduced. Within the experimental conditions, the corresponding modified model is obtained by using the Batchelor model and the Leighton model for the PMMA/HDPE suspension, and the accuracy of the modified model is verified.
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2021, Vol. 35 
