Abstract
This article provides a comparative analysis of the results obtained in determining the particle size of the basalt-based wood-mineral insulation nanofiller using photon correlation spectroscopy in various dispersion media after mechanical milling of a raw material. Aqueous solutions with various concentrations of glycerine were used as diluents. The studies demonstrated that glycerine-based basalt suspensions exhibit sufficient sedimentation stability that produces reliable data on the nanofiller size properties. This is achieved due to such dispersion medium properties as density and permittivity. Furthermore, determinations of the zeta potential of the basalt particle surface in glycerine showed that this dispersion was electrostatically stabilized and thus would be aggregation-stable.
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