烷基磷酸酯胺盐的酯化率对超薄型钢结构防火涂料的影响  

Influence of Esterification Degree of Amine Salt of Alkyl Phosphate on Thin Film Intumescent Coating

作　　者：冯雍[1] 师华[1] 熊家锦[1] 陆峰[1] 

机构地区：[1]北京航空材料研究院,北京100095

出　　处：《材料工程》2006年第4期44-47,51,共5页Journal of Materials Engineering

摘　　要：通过微型电炉实验、差热分析(DSC)和热失重分析(TG),研究了烷基磷酸酯胺盐的酯化率对超薄型钢结构防火涂料的影响。结果表明:酯化率高的烷基磷酸酯胺盐能较好地改善超薄型钢结构防火涂料的防火隔热性能。当试样背面温度(简称背温)相同时,其能延长隔热时间间隔。当实验时间进行到120min时,烷基磷酸酯胺盐的酯化率愈高其试样背温愈低。高酯化率的烷基磷酸酯胺盐有利于超薄型钢结构防火涂料形成具有良好隔热结构的多孔炭质层。在氩气条件下,低酯化率的烷基磷酸酯胺盐的试样热失重较少。The effect of the esterification degree of amine salt of alkyl phosphate on the intumescent coating was studied through the small scale fire tests, TG and DSC method. The results showed that the fireproofing performance of the coating increased as the esterification degree of the organic phosphate increased, and the duration of fire resistance also increased as the esterification degree of the organic phosphate increased. When the experimental time reached 120min,the higher esterification degree gained the lower back temperature of the sample and forms the foamed char with better heat insulation. The lower esterification degree of the organic phosphate reduced the mass loss of the sample at high temperature, when the argon was used as the carrier gas.

关 键 词：烷基磷酸酯胺盐 酯化率 多孔炭质层 

分 类 号：Q423.2[生物学—神经生物学]