inhibitory pigments

The influence of surface-modified titanium dioxide on the electrochemical features of epoxy compositions was researched. The raise of epoxy primer protective properties by the presence of surface-modified fillers in its composition was determined. It is shown that the mechanism of the modified filler protective effect in epoxy coating applied on the steel is similar to the effect of solid zinc phosphate which effectiveness corresponds to the level of the known inhibitory pigment.

The corrosion resistance of steel with modified inhibitory pigments and polyurethane protective coatings was studied by impedance and electrochemical methods. It was found that the combination of a mixture of molybdate / zinc phosphate and calcium silicate in the polyurethane soil due to the synergistic effect enhances its protective properties. Impedance studies have confirmed the increase in anti-corrosion characteristics of such a system.