Synthesis of halogen free flame retardant and its application on polypropylene

Abstract

The present work is aimed at synthesizing halogen free, ecofriendly phosphorous based flame retardant (FR) for polypropylene (PP). Polypropylene is highly flammable at room temperature and leaves almost no char. The synthesised FR enhances the LOI values of polypropylene and also arrests the antidripping properties of the polymer. However, the breaking strength of flame retardant polypropylene filaments is found to be decreasing with increasing concentration of FR compound. Thermal stability of the PP increases with the increase in degradation temperature.