改性聚磷酸铵在室内水性超薄型钢结构防火涂料中的应用

Use of Modified Ammonium Polyphosphate in Indoor Water-borne Ultra-thin Fire-retardant Coatings for Steel Structure

以苯丙乳液为成膜物质,加入改性超细聚磷酸铵(APP)、季戊四醇(PER)和三聚氰胺(MEL),制备了超薄钢结构防火涂料。采用单因素水平试验,考察了不同分散剂及阻燃剂对钢结构防火涂料防水性能的影响,依据GB14907-2002测试了涂料的理化性能和防火性能。涂料的各项理化性能指标均已达到或超过国家标准,耐水时间48 h,耐火时间达到80 min。

With styrene-acrylic emulsion as film former, superfine ammonium polyphosphate（APP）, pentacrythritol （PER） and melamine （MEL） as fire retardants we have prepared water-borne fire-retardant coatings. Based on single-factor experiment. the influence of different dispersing agent and fire retardants on water-resistance of the fire retardant coatings is studied. The physicochemical and fire retardant properties are tested according to the standard GB14907-2002. The data of physicochemical properties reaches or exceeds the requirements of national standards; water resistance time is 48 h and the fire resistant time is 80 min .