The Effect of Silicate Fillers on Adhesion and Adhesion Strength Properties of Water-Based Coatings

The properties of coatings largely depend on the nature of the interaction of the film material with the substrate – the type of bonds between them. The degree of this interaction, associated with the nature of the paint and varnish material, mineral fillers and the nature of the surface to be protected, may be a criterion for evaluating the protective and operational properties. Therefore, an urgent scientific and practical task is to study the silicate fillers effect on the nature of adhesive interactions at the interface of water-based coatings with a steel substrate and to establish the relationship of adhesion strength properties with the thermodynamic adhesion work. It is shown that the adhesion strength in the paint systems for steel is significantly affected by the thermodynamic adhesion work, in which the dispersed component of the surface free energy makes the greatest contribution when the degree of filler content changes.