分别以纯丙乳液、硅丙乳液和氨基功能性单体改性的硅丙乳液为基料,多聚磷酸铵(APP)、季戊四醇(PER),三聚氰胺(MEL)为膨胀体系,钛白粉为无机填料,制备水性防火涂料A、B、C,比较了3种涂料的理化性能和防火性能.结果表明,防火涂料A的膨胀高度和发泡效果较佳,但其燃烧炭层比较疏松;防火涂料B和C有优异的理化性能;防火涂料C的燃烧炭层呈"蜂窝"状,其耐火时间为72 min,比防火涂料A.、B分别长18和9 min.其主要热分解温度峰值比防火涂料A高13.8℃.
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