Effect of different sizes 103 75 Effect of binary particle-size 70 fraction on suspension 02 viscosity with total 65 volume as parameter. 60 55 The particle size ratio is 5:1. 10' 50 40- -30- Point 中 n %large 20 P 60 1000 0 100 10- 0 02 04 06 08 1.0 Q 60 500 50 Fraction of large particles S 74 1000 50
Effect of binary particle-size fraction on suspension viscosity with total % volume as parameter. The particle size ratio is 5:1. Point %large P 60 1000 0 Q 60 500 50 S 74 1000 50 Effect of different sizes
Effect of particle charge on particle size The electrical double layer 发=a3e回 where c is the electrolyte concentration in mol/L,and [z]is the valency of the electrolyte.This means that(assuming [z]1)the following is true for aqueous liquids electrolyte concentration,c 10-5,then double layer thickness 1/K~100 nm c=10-3, 1/k~10nm c=10-1, 1/K~1nm
Effect of particle charge on particle size The electrical double layer - - - - - - - - - + + + + + + + + + 1 0.3 c 1 2 z 1