Effect of size and shape of particulate inclusions on the rheology of guar galactomannan solutions

In our earlier work, the effects of particulate inclusions on the rheological properties of a guar galactomannan entanglement solution were studied. Filler materials varying in size and shape were investigated including a rice starch sample, chosen for its homogeneity and spherical nature. In the pr...

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Bibliographic Details
Published in:Carbohydrate polymers 2000-09, Vol.43 (1), p.1-9
Main Authors: Rayment, P, Ross-Murphy, S.B, Ellis, P.R
Format: Article
Language:English
Subjects:
Guar galactomannan solutions
Particulate inclusions
Rheology
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Summary:In our earlier work, the effects of particulate inclusions on the rheological properties of a guar galactomannan entanglement solution were studied. Filler materials varying in size and shape were investigated including a rice starch sample, chosen for its homogeneity and spherical nature. In the present paper, the work has been extended to include microcrystalline cellulose selected for its rod-like appearance and heterogeneous nature. The effects of particulate and composite properties on the apparent zero-shear viscosity and yield stress of the system were determined, and compared with previous results obtained using the more isotropic rice starch filler
ISSN:0144-8617
1879-1344
DOI:10.1016/S0144-8617(99)00203-9