Research of influence of thermal aging on properties high-temperature polyimide carbon fiber reinforced plastic

Valueva M.I., Zelenina I.V., Nacharkina A.V., Gulyaev A.I.
Valueva M.I., Zelenina I.V., Nacharkina A.V., Gulyaev A.I. Research of influence of thermal aging on properties high-temperature polyimide carbon fiber reinforced plastic // Proceedings of VIAM. 2023. No. 6. DOI: 10.18577/2307-6046-2023-0-6-46-62. URL: https://test.viam.ru/en/journal/2023/6/5
Keywords
polymer composite materials, high-temperature carbon fiber reinforced plastics, polyimide binders, influencing factors, thermal aging
Abstract

The results of studies of the effect of laboratory-simulated exposure to elevated temperatures (of 250, 280 and 320 °С) on the structure and properties of high-temperature carbon fiber reinforced plastic (CFRP) based on a thermosetting polyimide binder are presented. The mass loss of CFRP under prolonged exposure to elevated temperatures has been determined, and the activation energy of the thermal aging process has been calculated. For comparison, the data of scientific and technical literature on the thermal-oxidative effect of elevated temperatures on CFRP of foreign manufacturers based on polyimide binders of the PMR-type are presented.

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