ABOUT INFLUENCE OF NON-DEGRADABLE FILLERS FOR FLAMMABILITY AND SMOKE-FORMING ABILITY OF POLYMER COMPOSITE MATERIALS

The influence of the content and the chemical nature of non-degradable mineral fillers on the flammability and smoke-forming ability of polymeric composite materials. The set obtained in the experimental data shows that the main parameter that determines the effect of inorganic filler on flammability polymeric composite materials, is the amount of heat absorbed by the filler. The dependence of the oxygen index (OI) of polymer composites on the specific heat capacity of mineral fillers. Shown to that the experimental data fit well to the line in the coordinates 100
OI îò kqí regardless of the type of filler used. For all non-degradable fillers in a wide range of filling with satisfactory accuracy is performed 100
OI linear dependence of the relative content of fillers, and the slope of the line to the horizontal axis (tg) is proportional to the specific heat absorption of the filler. tg shows the values for the various non-degradable polymers and fillers. Arelation to compute the values of oxygen index of various polymeric composite materials. Shown that when the content of up to 60 wt. % of nondegradable mineral fillers practically does not reduce flammability and combustibility of polymeric composite materials, but significantly reduce their smoke-forming ability.