The article presents the results of studies of the properties of carbon fiber of the VKU-51 brand and fiberglass of the VPS-58 brand, made on the basis of the epoxy vinyl ester binder of the VSV-43 brand, after exposure in full-scale conditions of moderate and subtropical climate for 5 years with intermediate removals after 1 and 3 years. Physical and mechanical characteristics (strength and modulus of elasticity under tension, compression and bending) and glass transition temperature are determined. Studies have shown a high preservation of properties at 20 °C: 90–100% in VKU-51 and 73–100% in VPS-58, depending on the type of test.
Research results on definition the mass content of the resin by thermo-oxidative destruction method in constructional CFRP based on the carbon medium-modulus carbon fillers, woven carbon fillers from high-strength fibers and epoxy polymeric matrix are presented. It is shown, which carbon composite materials the thermo-oxidative destruction method is applicable to determine the resin content and possibility application thermo-oxidative method in inert environment is tested. The analysis of the received results is carried out.
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