Fire retardant systems in poly(methyl methacrylate): Interactions between metal oxide nanoparticles and phosphinates
作者： A. Laachachi , M. Cochez , E. Leroy , M. Ferriol , J.M. Lopez-Cuesta
DOI: 10.1016/J.POLYMDEGRADSTAB.2006.09.011
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摘要: Abstract In the course of our investigations on halogen-free fire-retardant solutions for PMMA, influence oxide nanoparticles (TiO2, Al2O3) thermal stability and fire behaviour PMMA blended with phosphinate additives (Exolit OP930 OP1311) has been studied by thermogravimetric analysis cone calorimetry. For each mixture, residues obtained after combustion were examined characterized SEM, X-ray diffraction microprobe analysis. Some synergistic effects between nanometric alumina additive leading to reduction peak heat released rate total up 30% increase time ignition. From results obtained, it can be proposed that OP1311 act principally in condensed phase, presence oxides playing a reinforcement role carbonaceous layer promoted additives.
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