One way to expand the application of polymer composite materials (PCMs) is to enhance their physical and mechanical properties under the influence of various environmental factors, particularly high temperatures. It is proposed to use anaerobic and silicone materials as modifying additives in the PCM epoxy matrix. Based on the results of impact and tensile tests of the modified matrix material, the optimal amounts of anaerobic and silicone modifiers in the epoxy binder are determined. The influence of the established optimal amounts of the studied modifiers on changes in the PCM strength properties, including after holding the samples at +200°C for 6 hours, is assessed using carbon fiber-reinforced plastic (CFRP) samples through tensile tests. The test results shows that the addition of an anaerobic modifier contributes to a slight increase in strength at room temperature and leads to a minimized loss of strength properties after holding at +200°C, compared to carbon fiber-reinforced plastic whose matrix does not contain a modifying additive. The use of a silicone modifier in the epoxy matrix reduces the PCM strength at room temperature, but it contributes to the highest strength after aging at +200°C among the compared PCM matrix compositions.
Kosenko et al. (Sat,) studied this question.