以硅丙乳液为基料,以聚磷酸铵(APP)、季戊四醇(PER)和三聚氰胺(MEL)为阻燃体系,以钼酸铵[(NH4)6Mo7O24·4H2O]为阻燃抑烟协效剂,制备了防火涂料.通过大板燃烧法与热重法(TGA)分析了不同钼酸铵含量的防火涂料的热性能,测试了其烟密度.通过扫描电镜和红外光谱对炭层的微观结构进行了表征.结果表明,钼酸铵对硅丙乳液防火涂料的阻燃抑烟性能影响显著,当APP的质量分数为22.6％、PER为10.2％、MEL为13.6％、钼酸铵含量为0.3％时,所制备的防火涂料的耐燃时间达到65 min,残炭量23％,产烟量很低,烟密度等级为21.3.
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