Abstract
The angle of detachment, sediment volume and relative viscosity of monodisperse quartz suspensions were investigated both in simple liquids and in liquid mixtures of different polarities as functions of particle size and contact time. For water-alcohol mixtures, the angle of detachment, the sediment volume and the viscosity of quartz particles of different sizes yielded maximum curves as functions of the alcohol concentration However, benzene-alcohol mixture gave curves with minimum. The extent of the changes were influenced by the alcohol chain length and the particle size. The adhesion, defined by the sine of the angle of detachment, correlated with the sediment volume of the suspensions and with the relative viscosity of the suspensions. Variations of the interaction between the quartz particles and the media was assumed, which is due to the oriented adsorption of the molecules. The continuity was also influenced by the specific surface area of the particles and the contact time. The adhesion forces between the particles and the planar surface are determined by the particle size and the structure of the adsorption layer.
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