采用钼酸铵、磷酸二氢钠、钨酸钠通过化学沉淀法合成了磷钼钨杂多酸铵(AMTP).XRD、FTIR、SEM、EDS结果表明,在n(P):n(Mo):n(W)=1:6:6,pH=1.5,温度为60℃的条件下反应1h,所得磷钼钨杂多酸铵纯度高,结晶状态良好且无明显的团聚现象;按ω(AMTP)=5%将AMTP添加到不饱和聚酯树脂(UPR)中.结果证实,UPR氧指数(LOI)从纯树脂的19.6%上升至24.2%,垂直燃烧等级(UL94)达V-2级,烟密度等级(SDR)从75.25降至70.27,最大烟密度(MSD)从95.73下降至92.16,烟密度等级满足国家对B1级电器类热固性塑料的使用要求.
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