Flame Retardant Properties of EVA-nanocomposites and Improvements by Combination of Nanofillers with Aluminium Trihydrate

摘要

Flame retardant nanocomposites are synthesized by melt-blending ethylene-vinyl acetate copolymers (EVA) with modified layered silicates (montmorillonites). Thermogravimetric analysis performed under different atmospheres (nitrogen and air) demonstrated a clear increase in the thermal stability of the layered silicate-based nanocomposites. The use of the cone calorimeter to investigate the fire properties of the materials indicated that the nanocomposites Caused a large decrease in heat release. The char-formation is the main factor important for improvement and its Function is outlined. Further improvements of the flame retardancy by combinations of nanofillers and traditional FR- Additives o the basis of metal hydroxides were also studied. Copyright.