Method for improving the efficiency of operation and repair of water transport using the newest epoxy plastics
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Abstract
Today, in order to improve the efficiency of operation and repair of water transport vehicles, it is important to apply a method that involves the use of the latest reactoplastics that can operate at high temperatures. Here, it is important to activate epoxy compositions by introducing active additives such as microdispersed filler into the oligomer. This allows for a simultaneous increase in the mechanical properties of the materials. In addition, the cohesive strength is crucial for the thermal properties of epoxy composites, which is especially important for the water transport vehicles operating in different time zones. Therefore, research in this area is relevant today. In this paper, the optimal content of synthesised and physically active dispersed filler in an epoxy oligomer was determined by the criteria of thermophysical properties, such as heat resistance and coefficient of thermal expansion of polymer composites. Epoxy resin was used as the basis for the formation of polymer compounds. The compositions were crosslinked with PEPA hardener. A titanium aluminium powder was used as a filler. It was determined that in order to form materials with improved performance characteristics, it is necessary to add a charge powder to the epoxy resin at a content of 0.5 % per 100 % of epoxy resin. Obtaining such a composite can significantly increase the heat resistance, glass transition temperature and reduce the CTE of protective coatings. This was considered to be caused by the influence of the microdispersed additive on the microheterogeneous structure of the developed materials. On the other hand, it is the structure that determines the cohesive strength of materials and is the basis for further adjustment of their thermal and physical characteristics. As a result, the degree of gelation of the materials increases, which implies an improvement in the thermal properties of the developed materials to increase the efficiency of operation and repair of water transport vehicles
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