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首页> 外文期刊>Journal of Applied Polymer Science >Synergistic effect of a novel charring agent and ammonium polyphosphate on the flame retardancy of acrylonitrile butadiene styrene
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Synergistic effect of a novel charring agent and ammonium polyphosphate on the flame retardancy of acrylonitrile butadiene styrene

机译：新型炭化剂与多磷酸铵对丙烯腈丁二烯苯乙烯阻燃性的协同作用

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摘要

A novel charring agent, poly(p-propane terephthalamide) (PPTA), was synthesized with terephthaloyl chloride and 1,2-propanediamine through solution polycondensation at a low temperature. PPTA was used together with ammonium polyphosphate (APP) to prepare a novel intumescent flame retardant (IFR) for an acrylonitrile butadiene styrene (ABS) resin. The flammability and thermal stability of the IFR-ABS composites were investigated with limiting oxygen index, UL 94 vertical burning, and thermogravimetric analysis tests. The results showed that the IFR system had excellent flame retardancy and antidripping properties for ABS. The thermogravimetric curves suggested that there was a distinct synergistic effect of PPTA and APP, and this effect greatly promoted the char formation of the IFR-ABS composites and hence improved the flame retardancy. Additionally, the structure and morphology of char residues were studied with Fourier transform infrared and scanning electron microscopy.
机译：通过对苯二甲酰氯和1,2-丙二胺在低温下的溶液缩聚反应合成了一种新型的炭化剂聚对苯二甲酸丙二酯（PPTA）。 PPTA与聚磷酸铵（APP）一起使用，以制备用于丙烯腈丁二烯苯乙烯（ABS）树脂的新型膨胀型阻燃剂（IFR）。使用极限氧指数，UL 94垂直燃烧和热重分析测试研究了IFR-ABS复合材料的可燃性和热稳定性。结果表明，IFR系统对ABS具有出色的阻燃性和抗滴落性能。热重曲线表明PPTA和APP具有明显的协同作用，这种作用大大促进了IFR-ABS复合材料的炭化，从而提高了阻燃性。另外，用傅立叶变换红外和扫描电子显微镜研究了焦炭残渣的结构和形态。

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