Abstract
The paper deals with the issue of protecting metals from corrosion, which can damage their structures. Anti-corrosion coatings are widely used to ensure the durability of steel structures. It was described that the durability of the coating depends on the chemical and physical characteristics of the system, such as the type of coating, dry film thickness, water resistance, and adhesion. The importance of artificial aging tests for assessing the durability of coatings is considered, emphasizing that the results of such tests should be interpreted with caution, taking in consideration that artificial aging may not have the same effect as natural exposure. Various anti-corrosion additives for acrylic water-dispersion enamels are also described, which can improve the corrosion resistance of the coating, depending on the service conditions. The object of the research is the properties of enamels with functional additives in salt fog. The study results of the effectiveness of the anti-corrosion additives in acrylic enamels using salt fog from the BGD 881/S chamber are discussed. The research showed that the main requirement for increasing the effectiveness of the anti-corrosion additive in acrylic LPM is a comprehensive approach to improvement of the coating barrier properties, which additionally reduces the aggressive influence of the environment. The advantages of new complex anti-corrosion additives compared to traditional anti-corrosion pigments are multifunctionality – complex additives like Askonium 142 DA contain several active components that affect various coating properties, including anti-corrosion protection, adhesion, and water resistance. Traditional pigments, such as zinc phosphate, usually have only one function – to create a protective film on the metal. The main research idea of the article is to study the influence of anti-corrosion additives in paint coatings for metal protection from corrosion and the extension of the service life of structures.
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