The use of fillers based on nanochalk and nanotalc in ship paints and varnishes as one of the ways to increase the corrosion resistance of the ship's hull

Abstract

The article reveals the significance of the use of fillers in order to improve the anti-corrosion properties of ship paints and varnishes, considers the possibility of using fillers based on nanochalk and nanotalc in ship paints and varnishes. The process of obtaining highly dispersed powders of chalk and talc has been studied. Samples of nanotalc and nanochalk were obtained experimentally in the laboratory. A recipe has been developed and enamel based on nanotalc and nanochalk fillers has been tested. The issues of safety control for the environment in the production of the proposed methods for obtaining finely dispersed powder for marine coatings are considered. The proposed method makes it possible to increase corrosion resistance, thereby increasing the service life of ship hull material. The studies were carried out on shipbuilding sheet steel RSD-32. Steel coating was carried out by one control and three experimental samples. Studies of the prepared samples were carried out in the air and in the marine environment for 180 days. The experimentally established advantages confirmed the expediency of using nanochalk additives in the composition of paints and varnishes used in ship repair and shipbuilding industries. Keywords: corrosion; filler; marine; nanochalk; nanotalc; paints and varnishes.