The flame retardancy mechanisms of three aryl phosphates, triphenyl phosphate (TPP), resorcinol bis(diphenyl phosphate) (RDP) and bisphenol A bis(diphenyl phosphate) (BDP), in a polycarbonate/acrylonitrile–butadiene–styrene (PC/ABS) blend are investigated and compared. Further, the influence of polytetrafluorethylene (PTFE) on viscosity and thermal decomposition is discussed in the systems PC/ABS and PC/ABS + BDP. Mechanisms are proposed based on the results of various methods. Thermogravimetric analysis, Fourier transform infrared spectroscopy and kinetics are used to study the pyrolysis. The fire behaviour is studied by means of cone calorimeter measurements at different heat fluxes and the flammability is specified by limiting oxygen index (LOI) and UL 94. Rheology measurements are used to illuminate the changed dripping behaviour due to PTFE. TPP shows only a gas phase action. RDP shows mainly a gas phase action and some condensed phase action. BDP shows a crucial condensed phase action in addition to a gas phase action. TPP and RDP are somewhat superior in terms of flammability (LOI), whereas BDP shows superior performance in forced flaming combustion (cone calorimeter). Synergistic effects between PTFE and BDP are found. Copyright © 2007 Society of Chemical Industry

中文翻译：

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聚碳酸酯/丙烯腈-丁二烯-苯乙烯共混物中磷酸三苯酯，间苯二酚双（磷酸二苯酯）和双酚A双（磷酸二苯酯）的阻燃机理

在聚碳酸酯/丙烯腈-丁二烯-苯乙烯（PC / ABS）中，磷酸三苯酯，磷酸三苯酯（TPP），间苯二酚双磷酸二苯酯（RDP）和双酚A双磷酸二苯酯（BDP）的阻燃机理共混物进行了研究和比较。此外，在系统PC / ABS和PC / ABS + BDP中讨论了聚四氟乙烯（PTFE）对粘度和热分解的影响。根据各种方法的结果提出了机制。热重分析，傅立叶变换红外光谱和动力学用于研究热解。通过锥形量热仪在不同热通量下的燃烧性能进行研究，并通过极限氧指数（LOI）和UL 94规定了可燃性。流变学测量用于阐明由于PTFE引起的滴落行为的变化。TPP仅显示气相作用。RDP主要显示出气相作用和一些凝结作用。除了气相作用之外，BDP还显示出关键的冷凝相作用。在可燃性（LOI）方面，TPP和RDP略胜一筹，而BDP在强制火焰燃烧（锥形量热仪）中表现出优异的性能。发现了PTFE和BDP之间的协同作用。版权所有©2007化工协会