Rheology behavior of water dispersions of talc
DOI:
https://doi.org/10.15587/1729-4061.2012.5539Keywords:
Rheological behavior, talc, sedimentation, size of particles, water dispersions, concentrationAbstract
Despite the large number of rheological studies of talc aqueous suspensions, little attention has been given to the definition of critical size of a particle, at which the rheological behavior and sedimentation stability of the system change dramatically. This article represents the study of talc with a narrow granulometric distribution of particles in the range of 3 to 15 microns based on the dynamic analysis of the values of critical concentrations of the talc aqueous suspensions and static analysis of the sedimentation. It possess the value from both the scientific and the technological point of view, as it will ensure the ability to design analytically the composition and rheological behavior of aqueous dispersions of minerals. The article determines that the nature of the flow of talc aqueous suspensions changes at a certain "critical" size of a particle, which sharply reduces the sedimentation stability of the system. The promising area for further study of the rheological patterns of aqueous suspensions behavior of mineral fillers was outlined. This is the establishment of dependence between the size of hydration shell of particles and the stability of aqueous suspensionsReferences
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Copyright (c) 2014 Олексій Володимирович Миронюк, Олексій Олексійович Сікорський, Тарас Анатолійович Караваєв, Валентин Анатолійович Свідерський
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