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A study on viscosity of suspensions
Author(s) -
Chiu WenYen,
Don TrongMing
Publication year - 1989
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1989.070371015
Subject(s) - suspension (topology) , viscosity , shear thinning , van der waals force , kinetic energy , shear rate , thermodynamics , materials science , rheology , mechanics , chemistry , classical mechanics , composite material , physics , mathematics , molecule , organic chemistry , homotopy , pure mathematics
From a simple kinetic viewpoint for the formation and rupture of links among primary particles, the pseudoplastic behavior of suspensions can be well described. At steady state, the formation and rupture of links reach a dynamic equilibrium, and the viscosity of suspension is proportional to the state of aggregates. It is assumed that the formation of links is due to the surface forces over particles, including van der Waals' force, and is independent of shear rate. The rupture of links is proportional to ṙ m . Finally we get a very simple equation to predict the viscosity of suspension. With this simple kinetic viewpoint, the pseudoplastic behavior of suspensions composed of binary blends of monosize particles is also predictable.