Features of Wetting with Water Hydrophobic Powders of Methyl Silica and Composite Systems Based on it

The phase state of heterogeneous systems prepared on the basis of mixtures of hydrophobic and hydrophilic silica and water, depending on the ratio of component concentrations, and their using as thixotropic agents has been studied. It was found that the dependence of the interfacial energy of water with the surface of the particles of the composite system made on the basis of hydrophilic and hydrophobic silica taken in the proportion of 1:1 as for the individually taken AM-1 has a bell-shaped form with peaks at h = 3 and 1.5 g/g, respectively. The type of dependence is due to the complex processes involved in the formation of the composite system involving solid particles, water, and air.