Synthesis, characteristic, and application of new flame retardant containing phosphorus, nitrogen, and silicon

摘要: In this study, the novel halogen-free flame retardants (PSiN, A and B), which contain phosphorus, nitrogen, silicon, have been synthesized. The structure of PSiN-A is characterized by fourier transform infrared spectroscopy proton nuclear magnetic resonance, its thermal property studied through thermo gravimetric analysis (TGA). B were blended with polypropylene(PP) to obtain PP/PSiN composites. flame-retardant properties composites are estimated Limiting Oxygen Index (LOI) values, their degradation behaviors investigated TGA, under nitrogen from room temperature 800°C. fire performance PP improved PSiN(A or B): LOI value PP/PSiN-A reach 26.0 vol% char yield at 27 wt% phosphorus in PSiN provides possibility for blends form char, silicon improves stability char. active energies calculated method Horowitz–Metzger. POLYM. ENG. SCI. 46:344–350, 2006. © 2006 Society Plastics Engineers