Optimization of Ingredients for Two-Layer Epoxy Coating for Protection of Sea and River Vehicles

It was proved, that in order to increase the operational characteristics of parts of river and sea transport, including their physical and mechanical properties, it is advisable to use protective polymer composite coatings. It was shown, that in order to increase the performance of the physical and mechanical properties of the epoxy binder, it is necessary to introduce additives: dispersed and fibrous fillers. It is important to use them in complex. The effect of the modifier and the filler on the adhesive strength and impact strength of the epoxy composite coating has been preliminary analyzed. The critical content of the components in the epoxy oligomer was determined by the method of mathematical planning of the experiment: the modifier is 2, 4-diaminoazobenzene-4’-carboxylic acid (DAABCA) and the synthesized powdery titanium-aluminum charge (PTAC). The introduction of such ingredients into the epoxy binder in the complex allows to increase the adhesion strength and impact strength of a two-layer epoxy composite coating. The results obtained make it possible to create a protective coating with improved adhesion and physical-mechanical properties.