Abstract
The viscoelastic properties of concentrated, well dispersed, sterically stabilised polymethyl methacrylate particles were studied using a specially developed low frequency, controlled shear stress rheometer. The experimental results show a well defined viscoelastic transition over a narrow frequency range. Evidence is produced to show that the particles act as hard, non-interacting spheres. It is argued that the transition represents a change from a randomly packed assemblage with particle motion dominated by Browniandiffusion processes to a lower packing density shear flow regime.
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Strivens, T.A. The viscoelastic properties of concentrated suspensions. Colloid & Polymer Sci 261, 74–81 (1983). https://doi.org/10.1007/BF01411521
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DOI: https://doi.org/10.1007/BF01411521