Abstract According to the concept of fire life cycle assessment (LCA), a new type of intumescent flame retardant was designed and synthesized by chemically bonding chitosan, phosphorus pentoxide and melamine. The resultant compound, chitosan ethoxyl melamine phosphate (CEMP), was characterized by FTIR, 1H NMR, 31P NMR, XRD and SEM. The performance of CEMP and organic montmorillonite (OMMT) was evaluated in the substrate of epoxy resin (EP) with limited oxygen index (LOI), UL-94, cone calorimetric test (CCT), TGA and TG-IR. As a result, intumescent flame retardant EP (EP3) containing 30.6% LOI and V-0 rating was prepared by adding 3 wt% OMMT and 15 wt% CEMP. The CCT results indicated that CEMP and OMMT reduced the peak of heat release rate (PHRR) to about one fourth that of pure EP and total heat release (THR), 1/2. Decomposition of EP and EP3 was traced from 100 to 600°C by TG-IR.

中文翻译：

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环氧树脂膨胀型阻燃剂新型改性壳聚糖的合成

摘要 根据火灾生命周期评估（LCA）的概念，设计合成了一种新型膨胀型阻燃剂，将壳聚糖、五氧化二磷和三聚氰胺化学键合。所得化合物壳聚糖乙氧基三聚氰胺磷酸酯 (CEMP) 通过 FTIR、1H NMR、31P NMR、XRD 和 SEM 进行表征。CEMP和有机蒙脱石（OMMT）的性能在环氧树脂（EP）基材上进行了有限氧指数（LOI）、UL-94、锥形量热试验（CCT）、TGA和TG-IR的评价。因此，通过添加 3 wt% OMMT 和 15 wt% CEMP 制备了含有 30.6% LOI 和 V-0 等级的膨胀型阻燃剂 EP (EP3)。CCT 结果表明，CEMP 和 OMMT 将热释放率 (PHRR) 峰值降低到纯 EP 和总热释放率 (THR) 的四分之一左右，为 1/2。