The influence of climatic ageing on the properties of PCM-based epoxy resin systems

Evdokimov A.A., Petrova A.P., Pavlovsky K.A., Gulyaev I.N.
Evdokimov A.A., Petrova A.P., Pavlovsky K.A., Gulyaev I.N. The influence of climatic ageing on the properties of PCM-based epoxy resin systems // Proceedings of VIAM. 2021. No. 3. DOI: 10.18577/2307-6046-2021-0-3-128-136. URL: https://test.viam.ru/en/journal/2021/3/12
Keywords
carbon fiber, fiberglass, epoxy vinyl ester binder, full-scale exposure, elastic-strength properties, physical properties.
Abstract

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.

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