Investigation of the stability of polymer composites based on epoxy matrix and astralenes under exposure to high temperatures

Introduction. The paper considers one of the ways to improve performance characteristics of products based on polymer composites with epoxy matrix by improving their thermal stability and durability by introducing modifiers.

Problem Statement. The objective of this study is to compare the heat resistance indicators of epoxy matrices of classical design with compositions improved by modification with carbon nanostructures.

Theoretical Part. For basic information, the selection of modifying materials, the selection of the optimal composition of the binder based on epoxy resin, low-molecular hardener, plasticizer and filler was carried out. The technology of introducing modifiers into the structure of the epoxy matrix was developed. Thermogravimetric and differential thermal studies were used to analyze changes in the temperature of the beginning and the end of the thermal effect, the temperature of the maximum thermal effect, the amplitude value and width of the peak effect, the index of its shape, and the mass loss of heated samples depending on their formulation.

Conclusion. The results of the study indicate the possibility of using epoxy resins filled with powdered carbon nanostructures in various areas of production due to the positive effect of additives on thermal stability indicators.

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