Abstract
The degree of flocculation in suspensions depends on particle size and the variation is measured by centrifugal sedimentation. The effect of particle size on the rheological properties of suspensions was studied using a coaxial cylinder rheometer. The apparent viscosity, ηa, the amplitude ratio of stress-to-strain, δ0/γ0, and the imaginary part of Fourier transform, Im, for the Raised-Cosine-Pulse increase with decreasing particle size. This may be attributed to the variation of the degree of flocculation because the sedimentation volume of suspensions increases with the decrease of particle size at a fixed particle concentration.
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Schedule a callMore From: Nihon Reoroji Gakkaishi(Journal of the Society of Rheology, Japan)
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