The new additive consists of a solution containing copper salts, ammonium salts, and phosphoric acid. When combined with the polymer, it blends to form a new structure that works in three simultaneous directions:
Phosphorus creates a protective layer on the surface that resembles a layer of coke.
Nitrogen releases non-flammable gases that reduce the intensity of the flame.
Copper stimulates chemical reactions that inhibit the combustion process.
To achieve this effect, the additive requires no more than about 8 percent of the total material weight, while the plastic's strength remains relatively constant. Furthermore, this formulation enhances the fluidity of the raw materials during production processes.
Sergei Borisov, an associate professor in the Department of Chemistry and Technology of Rubber Processing at the university, points out that reinforced polymer compounds are widely used in the construction, aviation, electronics and automotive industries, but their main drawback is their low resistance to combustion due to their high organic content.
