Abstract
In this study, an attempt was made to use PA 6 as a component of an experimental composite anticorrosive coating that increases the adhesion of hydrophobic coatings (iron stearate and zinc stearate) to protect structural steel St3. The phosphating primer leads to the formation of a film of iron salts insoluble in water on the steel surface and adsorption of PA 6 on them. Hydrophobization of the surface formed in this case zinc stearate leads to the formation of a coating with high adhesion and anticorrosive properties. Tannin is a corrosion inhibitor. The advantage of the tannin primer is that its molecules are able to bind to the metal surface and the PA 6 macromolecules simultaneously, forming a strong coating on the metal. Zinc stearate gives the coating hydrophobic properties and additional protection of the metal from corrosion.
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