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 flamma-bility 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 flamma-bility 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 ot kq <sub>a</sub> 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 (tga) is proportional to the specific heat absorption of the filler. tga 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 non-degradable mineral fillers practically does not reduce flammability and combustibility of polymeric composite materials, but significantly reduce their smoke-forming ability.