MoO_3,MoSi_2和Fe_2O_3对膨胀型防火涂料炭质层性能的影响  

Influence of MoO_3,MoSi_2 and Fe_2O_3 on Residual Chars of Intumescent Fire-Retardant Coating

作　　者：李国新[1] 何廷树[1] 南峰[1] 高魁[1] 

机构地区：[1]西安建筑科技大学材料科学与工程学院,陕西西安710055

出　　处：《建筑材料学报》2012年第3期349-355,共7页Journal of Building Materials

基　　金：陕西省自然科学基础研究基金资助项目(2010JQ7013);中国博士后基金资助项目(20090461288)

摘　　要：在聚磷酸铵(APP)季戊四醇(PER)三聚氰胺(MEL)膨胀防火涂料配方中分别添加9%(质量分数)的MoO3,MoSi2和Fe2O3,获得3种新涂料.对上述涂料与原涂料进行热重分析(TGA)比较后发现,MoO3,MoSi2和Fe2O3均能显著提高炭质层的残炭率.对各涂料在不同温度下的残炭率进行红外光谱测试,发现它们可促进热稳定性好的芳香结构基团的生成,从而提高涂料炭质层残炭率.9%（by mass） of MoO3, MoSi2 and Fe2O3 were used to improve the fireproof performance ot the ammonium polyphosphate-pentaerythrite-melamine intumescent coating （APP-PER-MEL coating） and three coating formulations were established. Four coatings were tested by thermo-gravimetric analysis （TGA） and the residual chars of them were tested by infrared（IR） spectrum. The results show that the mass of residual is char increased and it is found that the reason for that is some groups of aromatic struc-ture with better thermal stability promote the form ation of char by MoO3, MoSi2 and Fe2O3.

关 键 词：膨胀型防火涂料 热重降解 热重分析 红外光谱 

分 类 号：TQ637.8[化学工程—精细化工]