To achieve superior fire safety epoxy resins (EP), a novel multifunctional organic-inorganic hybrid, melamine-containing polyphosphazene wrapped ammonium polyphosphate (PZMA@APP) with rich amino groups was prepared and used as an efficient flame retardant. Thanks to the cross-linked polyphosphazene part, PZMA@APP exhibited high flame retardant efficiency and smoke suppression to the EP composites. Thermogravimetric analysis indicated that PZMA@APP significantly enhanced the thermal stability of EP composites. The obtained sample passed UL-94 V-0 rating with 10.0 wt% addition of PZMA@APP. Notably, inclusion of incorporating PZMA@APP leads to significantly decrease on fire hazards of EP, for instance, bring about a 75.6% maximum decrease in peak heat release rate and 65.9% maximum reduction in total heat release, accompanied with lower smoke production rate and higher graphitized char layer. With regards to mechanical property, the glass transition temperature of EP/PZMA@APP10.0 was as high as 184.5 °C. In particular, the addition of PZMA@APP did not worsen the mechanical properties, compared to pure APP. It was confirmed that the participation of melamine-containing polyphosphazene could significantly enhance the quality of char layer and thereby resulting the higher flame retardant efficiency of PZMA@APP.

为了获得优异的防火安全环氧树脂（EP），制备了一种新型的多功能有机-无机杂化材料，其中含有富含氨基的含三聚氰胺的聚磷腈包裹的聚磷酸铵（PZMA @ APP），并用作有效的阻燃剂。由于交联的聚磷腈部分，PZMA @ APP对EP复合材料表现出高阻燃效率和抑烟性。热重分析表明，PZMA @ APP显着增强了EP复合材料的热稳定性。获得的样品通过添加10.0 wt％的PZMA @ APP的UL-94 V-0等级。值得注意的是，掺入PZMA @ APP可以大大降低EP的火灾隐患，例如，使峰值放热率最大降低75.6％，总放热最大降低65.9％，伴随着较低的烟雾产生速率和较高的石墨化焦炭层。关于机械性能，EP / PZMA @ APP10.0的玻璃化转变温度高达184.5℃。特别是，与纯APP相比，添加PZMA @ APP不会降低机械性能。证实了含三聚氰胺的聚磷腈的参与可以显着提高炭层的质量，从而导致更高的PZMA @ APP阻燃效率。