纳米材料在水性超薄膨胀型钢结构防火涂料中的应用  

Applications of Nano-materials in Fire Resistive Coatings for Steel Structures

作　　者：咸才军[1] 孟惠民[1] 孙冬柏[1] 刘学军[1] 王旭东[2] 

机构地区：[1]北京科技大学腐蚀与防护中心,北京100083 [2]北京市腐蚀磨蚀与表面技术重点实验室,北京100083

出　　处：《材料工程》2006年第8期40-44,共5页Journal of Materials Engineering

基　　金：科技部"863"计划资助项目(2002AA302605);北京市腐蚀;磨蚀与表面技术重点实验室资助项目(2005040010)

摘　　要：将多种纳米材料应用到水性超薄膨胀型钢结构防火涂料中,研究其用量对钢结构防火涂料耐火极限的影响。结果表明:添加纳米SiO2和TiO2可以提高防火涂料膨胀后炭质层的强度,延长钢结构的耐火极限,当添加1.5%(质量分数)的纳米SiO2时,可以达到110min的耐火极限。The applications of nano-materials in fire resistive coatings for steel structures were studied. The effects of the dosage of nano-materials on the fire proofing time were investigated. The results showed that nano-SiO2 and nano-TiO2 could enhance the intensity of foamed cellar char. In addition, these materials could remarkably prolong the fire proofing time of the steel structure. When 1.5% （mass fraction）nano-SiO2 was used in these fire resistive coatings,110 minutes can be obtained.

关 键 词：钢结构防火涂料 纳米二氧化硅 纳米二氧化钛 膨胀型 耐火极限 

分 类 号：O631[理学—高分子化学] TQ637.8[理学—化学]