A New Sustainable Inorganic Flame Retardant Additive System for Polyaraide 6,6 with Improved Performance 6, 6 (PPT)

摘要

This project is aimed at developing new sustainable inorganic flame retardant additive system based on inorganic phosphate glass (P-glass) for polyamide6,6 (PA6,6) with improved flame retardancy. Three phosphorous based glasses(P-glass) differing in chemical composition and glass transition temperature (Tg) were prepared and their thermal properties were tested. The low Tg P-glass (ILT-1) was found to be a promising flame retardant for PA6,6 at a concentration of up to 15% by weight. This P-glass composition decreased the peak heat release rate(PHRR) and the total heat amount released from the PA6.6/ILT-1 hybrids, resulting in an efficient formation of a glassy char layer.