Solid surface wetting with dopant solutions

The results of studies of the effect of a complex additive containing sodium tripolyphosphate and a resorcinolfurfural oligomer on the processes of wetting hard surfaces are presented. It is shown that the work of wetting an aluminum plate with solutions with a complex additive is significantly higher than the total work of wetting with solutions containing individual components of the complex. The investigated complex additive increases the wetting of the Al ₂ O ₃ surface, which contributes to a decrease in the free surface energy at the solid - solution interface.