RESEARCH BEHAVIOR OF PHOSPHORUSNITROGEN-CONTAINING POLYFUNCTIONAL FLAME RETARDANT IN CHLORINE-CONTAINING ADHESIVE SYSTEMS
The article is devoted to the development of a new phosphorus-nitrogen-containing polyfunctional flame retardant, which is a product of the interaction of dimethyl phosphite and dicyandiamide. The resulting product has a close to optimal ratio of nitrogen and phosphorus atoms, which determines its adhesive, heat-stabilizing and antipyretic activity. It is shown that the strength of the adhesive joint increases by an average of 30-70 % and the composition containing DDF exhibits consistently better adhesive strength indicators than the original adhesive composition up to 80 °C.