China Supply IFR-PAP01 Piperazine Pyrophosphate Intumescent Flame Retardant As a professional chemical new material supplier based in Deyang, Sichuan, we provide high-quality IFR-PAP01 Piperazine Pyrophosphate, a halogen-free environmental flame retardant designed for global polymer flame retardant modification projects. Our IFR-PAP01 contains inherent carbon source and acid source, which can form a highly effective intumescent flame retardant system after matching with