Нові технології комплексного захисту військових об’єктів

Abstract

A comprehensive approach to protecting ship personnel from slipping and injury, as well as safeguarding the metal structures of naval vessels against corrosion, may be implemented through the development of non-slip anticorrosive coatings. In this study, a composite non-slip anticorrosive pigmented polyurethane coating (NSAPC) of an organo-organic type was developed on the basis of a crosslinked/linear polyurethane blend (CPU/LPU, 70/30) with varying contents of an organo-organic filler and pigment (RAL 7040).

The developed NSAPC exhibited resistance to biotic, abiotic, and technogenic destructive factors. Its coefficient of friction (µ), determined under different environmental conditions and loading regimes, ranged from 0,60 to 0,83. The damping properties (tanδ) at temperatures of -10°C, +25°C, and +50°C were 0,082, 0,119 and 0,175, respectively. The wear resistance coefficient (G) under ultra-high loads was <0.02%. After exposure to natural and model destructive factors, the obtained characteristics complied with the performance requirements established for coatings intended for operation under extreme conditions.

The NSAPC was applied as "safety zones" on the upper deck of a project 58155 patrol boat (Naval Unit A0456). Monitoring of the developed NSAPC over fourteen months of operation, subsequently extended for an additional year, confirmed the reliability of the anticorrosive protection of the ship deck and the safety of its operation and maintenance by the crew.

The developed NSAPC provides reliable protection of the crew against slipping, thereby enabling personnel to perform their duties on deck while minimizing the risk of injury. In addition, it prevents loose objects from sliding during ship rolling. At the same time, the coating ensures effective protection of metal surfaces against aggressive technogenic and natural destructive factors, thus improving their operational performance and service life.