 The study investigated the use of three different plasticizers, tris, 2-chloroethyl, phosphate, tris, 1-chloro, 2-propyl, phosphate and tris for methylphenol, phosphate, in order to improve the fire safety properties of epoxy polymers. It was found that the optimal concentration of these plasticizers was 40 parts per million, resulting in improved fire safety properties such as increased char yield and reduced volatile thermolysis products. This modification also resulted in improved fire protection properties with the epoxy composites achieving a UL94V0-V1 rating. Additionally, the thermoprotective properties of the char were studied, along with its relationship to the combustibility of the composite. Finally, the behavior of the modified composite during high-rate pyrolysis was analyzed. This article was authored by Amirbek Bekchev, Anton Mostovoy, Andrey Sherbakov, and others. We are article.tv, links in the description below.