Synthesis, characteristic, and application of new flame retardant containing phosphorus, nitrogen, and silicon
Synthesis, characteristic, and application of new flame retardant containing phosphorus, nitrogen, and silicon
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DOI：
10.1002/pen.20472
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发表时间：
2006-03-01
影响因子：
3.2
通讯作者：
Wei, P
中科院分区：
文献类型：
--
作者：
Li, Q;Jiang, PK;Wei, P
本研究合成了含磷、氮和硅的新型无卤阻燃剂PSiN，A和B。采用傅立叶变换红外光谱和质子核磁共振对其结构进行了表征，并通过热重分析（TGA）对其热性能进行了研究。将PSiN A和PSiN B与聚丙烯（PP）共混，制备PP/PSiN复合材料。采用极限氧指数（LOI）评价了PP/PSiN复合材料的阻燃性能，并通过热重分析（TGA）研究了PP/PSiN复合材料在氮气保护下从室温到800 ℃的降解行为。PSiN（A或13）的加入改善了PP的阻燃性能：800 ℃时，PP/PSiN-A的氧指数达到26.0 vol %，残炭率为27 wt %。PSiN中的磷为PP共混物成炭提供了可能性，硅提高了成炭的热稳定性。用Horowitz-Metzger方法计算了PSiN和PP的活化能。
In this study, the novel halogen-free flame retardants (PSiN, A and B), which contain phosphorus, nitrogen, and silicon, have been synthesized. The structure of PSiN-A is characterized by fourier transform infrared spectroscopy and proton nuclear magnetic resonance, and its thermal property is studied through thermo gravimetric analysis (TGA). PSiN-A and B were blended with polypropylene(PP) to obtain PP/PSiN composites. The flame-retardant properties of PP/PSiN composites are estimated by Limiting Oxygen Index (LOI) values, and their degradation behaviors are investigated through TGA, under nitrogen from room temperature to 800 degrees C. The fire performance of PP is improved by PSiN(A or 13): the LOI value of PP/PSiN-A reach 26.0 vol% and the char yield is at 27 wt% at 800 degrees C. The phosphorus in PSiN provides possibility for the PP blends to form char, and the silicon improves the thermal stability of char. The active energies of PSiN and PP are calculated through the method of Horowitz-Metzger.