Wetting of Solid Surfaces by Solutions of Modifying Additives

The results of investigations of the effect of a complex additive containing sodium tripolyphosphate and resorcinol furfural oligomer on the wetting of solid surfaces are presented. It is shown that the wetting energy of an aluminum plate by solutions with a complex additive is much higher than the total energy of wetting by solutions containing separate components of a complex. The complex additive studied increases the wetting of an Al2O3 surface, which decreases the free surface energy at the solid – solution interface.