以硅丙乳液为基料,聚磷酸铵(APP)、季戊四醇(PER)、三聚氰胺(MEL)为阻燃体系,分别以金红石型及锐钛型二氧化钛为阻燃协效剂和抑烟剂,配制膨胀型防火涂料.通过TGA、大板燃烧试验与建材烟密度仪对其防火性能做了详细表征和分析,并用照片与扫描电镜观察了炭层的宏观与微观形貌.结果表明:金红石型TiO2对防火涂料的阻燃性能影响显著,当APP为150份、PER为68份、MEL为90份、金红石型Ti02为30份时,防火涂料的耐火时间达到73 min；锐钛型Ti02对防火涂料的抑烟性能影响显著,当添加量为60份时,烟密度等级(SDR)达到19.41.
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