Application of ree-eyring generalized flow theory to suspensions of spherical particles

摘要: Abstract The generalized flow theory of Ree and Eyring has been applied successfully to the extensive data Maron Fok (3) on behavior X-667 latex in both Newtonian non-Newtonian regions. By postulation presence two units, a water unit particle which may be non-Newtonian, an equation involving three parameters was obtained reproduced very well dependence viscosity rate shear at all temperatures concentrations. Further, predicted correct temperature, from could heats activation for particles. Both were found independent concentration, with that being same as pure liquid. does not predict concentration parameters. However, empirical equations such deduced, it possible ascertain values range below volume fraction ν = 0.25, calculate therefrom relative viscosities good agreement observed ones extrapolation 0, sp t 2.60 against expected Einstein value 2.50 suspensions spheres, while infinite gave rhombohedral close packing nonuniform spheres. From combination theoretical also expressions “molecular” functions temperature entropy distance between equilibrium positions molecules vary 13 A. zero 0 becomes infinite. On other hand, distances planes particles varied infinity limits.