膨胀型阻燃剂PEPA/MPP阻燃LGFPP性能研究  

Study on Intumescent PEPA/MPP Flame Retardant on Properties of LGFPP

作　　者：黄涛[1,2] 何敏[1] 刘渝 张丽[1,2] 田敏[1,2] 张峰 

机构地区：[1]贵州大学材料与冶金学院,贵阳550025 [2]国家复合改性聚合物材料工程技术研究中心,贵阳550014 [3]贵州凯科特材料有限公司,贵阳550014

出　　处：《工程塑料应用》2015年第3期35-39,共5页Engineering Plastics Application

基　　金：贵州省科学技术基金项目(黔科合J字[2013]2122号);贵州省科技计划项目(黔科合重大专项字[20116023]);贵阳市白云区科技计划项目(白科合同[2013]30号)

摘　　要：将季戊四醇磷酸酯(PEPA)和三聚氰胺聚磷酸盐(MPP)复配成一种膨胀型阻燃剂(IFR),用于对长玻纤增强聚丙烯(LGFPP)进行阻燃。采用极限氧指数测试、垂直燃烧测试、扫描电子显微镜观察、热重分析、力学性能测试等方法探讨了该IFR组成对LGFPP的阻燃性能、热稳定性能以及力学性能的影响。结果表明,IFR的总添加量为20%,当PEPA与MPP质量比为11∶9时,复配阻燃效果最佳,阻燃LGFPP的极限氧指数值为26.1%,UL–94燃烧等级达到V–0级;生成的炭层致密、连续性好且稳定;阻燃LGFPP表现出较好的热稳定性与力学性能。Intumescent flame retardant（IFR） was prepared by using melamine polyphosphate（MPP） and 1-oxo-4- hydroxymethyl-2,6,7-trioxa-l-phospha-bicyclo[2,2,2]octane（PEPA）, which was used for flame-retardant long-glass-fiber-reinforced polypropylene（LGFPP） systems. Effects of IFR component on the thermal stability, flame retardancy and mechanical properties of LGFPP / IFR samples were investigated by the limited oxygen index and UL 94 tests, scanning electron microscope, thermal gravimetry and mechanical tests. The results show that when the content of IFR is 20%, the mass ratio of PEPA and MPP was 3 ： 2, the flame retardancy of LGFPP/IFR is the best, the LOI value reaches 26.1%, and the vertical burning test reaches UL-94 V-0 rating ; the more compact and stable carbon layer is formed during the combustion process. Also, LGFPP/IFR system shows good thermal stability and mechanical properties.

关 键 词：长玻纤增强聚丙烯 季戊四醇磷酸酯 三聚氰胺聚磷酸盐 阻燃性能 热稳定性能 

分 类 号：TQ322.2[化学工程—合成树脂塑料工业]