Monodispersed colloids: preparations and interactions
The progress in the preparation of uniform colloids, consisting of simple and composite particles of different shapes, by precipitation from electrolyte solutions is described. The use of such dispersions in studies of interactions with various solutions and solids is discussed. As an example, the incorporation of dyes into monodispersed particles to produce pigments of precise and reproducible optical properties is illustrated. It is shown that the phenomena in mixed dispersions of well defined particles (heterocoagulation) and of their adhesion (deposition on and detachment from solid surface) can be quantitatively evaluated and interpreted.
Key wordsAdhesion colloids monodispersed coated particles heterocoagulation particle adhesion
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