Flame Retardants Nanocomposites-Synergistic Effect of Combination Conventional Retardants with Nanofillers of the Flammability of Thermoset Resins

Abstract

The consumption of thermoset resins as building polymers is approximately over one million tone word wide. The thermoset resins are proven construction materials for the technical and highly demanding applications of the transportation, electrical and building part industry. Heat stability, high thermal, low shrinkage, excellent mechanical properties are typical for their type of polymers. Above applications in addition to the mechanical properties also require good flame retardants of the materials. Undertaken activities refer to official draft, laws and legal recommendations in UE states. This paper presents positive effect of reduced flammability of thermoset resins (unsaturated polyester and epoxy resins) thanks to the use of nanocomposites containing multi-ingredient halogen-free flame retardants which combine conventional phosphorus/nitrogen modifiers interacting with nanofillers (oMMT (organomodified montmorillonite), EG (expandable graphite), graphene, GO (graphene oxide), nSi (nanosilica)).