Iron‐containing compounds as flame retarding/smoke‐suppressing additives for PVC

Abstract

Abstract The incorporation of a range of iron‐containing inorganic and organometallic compounds into a semi‐rigid PVC formulation has been investigated. Limiting Oxygen Index and Smoke Density data were obtained across a wide range of formulations and the effects of the compounds on flammability and smoke generation are discussed. Iron‐containing inorganic compounds appear to have little effect on the flammability of semi‐rigid PVC but several of the organoiron compounds and iron oxides markedly reduce smoke formation.