The article discusses dominant operational exposures, such as: aggressive media, climatic factors (ultraviolet radiation), biological factors, and erosion. The influence of ultraviolet radiation, microorganisms (fungi), and erosive particles on the wear of polymer coatings is described. Furthermore, the processes accompanying the erosive impact of hard particles on polymer coatings are characterized, causing: micro-cutting, abrasion (scratching), plastic deformation, or fatigue-related chipping of coating fragments.During operation, polymer coatings of technical objects are subjected to various types of climatic and environmental exposures, leading to their wear and, ultimately, to the damage of the coatings. Once coating damage occurs, a decision is made regarding the method of repair, either by renovating the damaged areas of the coating or by renovating the entire coating.
In the case of polymer coatings subjected to the influence of the natural operating environment, a dominant role in the degradation processes of the coatings is played by factors such as: ultraviolet radiation, aggressive media, and biotic factors (especially in conditions of increased humidity), as well as the erosive impact of hard particles. (…)
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Source: Logistyka Magazine
Dominant operational exposures causing wear of polymer coatings – PDF file for download