Synthesis of a phosphorus/silicon hybrid and its synergistic effect with melamine polyphosphates on flame retardant polypropylene system
作者： Y. W. Huang , M. L. Song , J. J. Ma , Z. Y. Lu , J. X. Yang
DOI: 10.1002/APP.38740
关键词:
摘要: A novel flame retardant (SDPS) containing POSi bands was synthesized by a condensation polymerization of diphenylhydroxysilane and spirocyclic pentaerythritol di(phosphate monochloride). The structure SDPS confirmed Fourier transform infrared spectroscopy (FTIR) 1H nuclear magnetic resonance (1H NMR). Limiting oxygen index (LOI) test showed that when loading 22.5 wt % 7.5 in polypropylene, LOI value markedly increased to 31.4% comparison with PP/SDPS (30 %) PP/MP systems. Combusting experiment further proved synergistic effect melamine polyphosphates (MP) retarding polypropylene. Thermogravimetric analysis (TGA) FTIR-TG results revealed the attributed catalyzed breaking down presence MP, which acted as an acid catalyst, consequently leading facilitated char silica forming process. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
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