Evaluation of the durability of mastic deck covering based on polymer composites in the range of operating stresses and temperatures

Abstract

The urgency of anticorrosive protection issues of ship hulls, deck structures, mechanisms, etc., as one of the main problems of the naval, is noted. One of the options for its effective solution is the use of coatings based on various polymer-composite materials. The authors substantiate the need for a preliminary assessment of the reliability and durability of such coatings, taking into account high humidity and aggressiveness of the operating environment, the corrosion of the repaired surfaces, the cyclic effect of stresses and alternating temperatures, etc. Proceeding from this, using the example of multicomponent polymer-composite compositions of the “Sprut” type, methodological approaches to the study of the polymer-composites durability for ship repair are considered. Their comparative characteristics are given. A mathematical model for assessing the durability of polymer-composite materials and coatings based on them is described, and the experimental studies’ results of their durability under static and cyclic stress in the operating temperature range are presented. The obtained results of theoretical and experimental studies are important for development of the methodological approaches to increasing the durability of mastic deck coatings based on polymer composite materials and the development of practical guidelines for the use of adhesives in shipbuilding and ship repair. The research results make it possible to develop new and improve the adopted technologies for the use of protective coatings on the structures of ship hulls and deck structures. Thus, the problems of the water transport operation, associated with the anti-corrosion protection of ship hull and deck structures and their repair, can be solved.