Integrated anticorrosive coating for the protection of metal products based on water-dispersion primers and varnishes

The regularities of changes in the physicochemical properties of the compositions and the resulting coatings of anticorrosive soil from the qualitative and quantitative content of the ingredients included in them are established. It is shown that the chemical nature and concentration of polymer film-forming agents, pigments, fillers and small functional additives, especially those of a nanoscale level, have the great influence on their parameters. The obtained regularities and dependencies made it possible to experimentally justify the selection of components for the primer composition and to develop its preliminary formulation, and the evaluation of the properties of the composition and coatings based on it as a result of testing the manufactured experimental sample made it possible to create its optimal formulation and to produce an experimental batch in the factory. Extended tests of this batch indicate that its physicochemical, technological and operational parameters fully comply with the technical specifications. Experimental studies have also been carried out to study the properties of aqueous dispersions of epoxy oligomers and compositions based on them, which are supposed to be included in the composition of water-dispersed epoxy varnish. The selection of ingredients for its manufacture has been done. So, it was advisable to use a 60-70 % aqueous dispersion of an epoxy oligomer of our own patented composition containing the necessary surfaceactive agents as a film-forming agent, and the commercial product TELALIT 180 as a hardener for it was developed. A technology for applying a complex coating using water-based dispersion, fireproof primers and varnishes, which showed high anticorrosive properties in the protection of metal structures operating in conditions of increased corrosion real danger, has been developed.

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