The effect of curing temperature modes on the physico-chemical characteristics of modified epoxy resin

Abstract

Epoxy resins are the leading resins used in the field of composite materials. Despite the unique characteristics, guaranteeing high volumes of consumption, these resins have certain disadvantages: high viscosity, low resistance to atmospheric influence. In order to reduce negative technological factors when epoxy resin is used as a thermosetting binder for composition, less viscous epoxyamine resin was studied. To impart elastic properties, a modification of this resin was carried out with two components: polyester based on sebacic acid and polyamide hardener. Curing of compositions was carried out at different temperature modes. The formation of a cross-linked polymer product, as well as the influence of temperature modes on the degree of curing of polymer films, was described. Important physico-mechanical and operational characteristics of the obtained samples were investigated. The correlation between the obtained parameters and temperature modes of composite processing was determined.