纳米SiO_2对PP/MPP/PEPA膨胀阻燃体系的协同作用  

Synergistic Effect of Nano-SiO_2 on PP/MPP/PEPA Intumescent Flame Retardant System

作　　者：黄健光[1] 冯才敏[1,2] 刘洪波[1] 

机构地区：[1]顺德职业技术学院医学系,广东佛山528333 [2]中山大学化学与化学工程学院,聚合物复合材料及功能材料教育部重点实验室,材料科学研究所,广东广州510275

出　　处：《塑料》2010年第2期117-119,85,共4页Plastics

基　　金：顺德职业技术学院科研项目(2008-KJ02)

摘　　要：以纳米SiO2为阻燃协效剂,采用多聚磷酸蜜胺(MPP)和笼状季戊四醇磷酸酯(PEPA)复配阻燃剂,制备具有良好阻燃性能的无卤阻燃聚丙烯(PP)。研究纳米SiO2用量对PP阻燃性能和协效作用的影响。结果表明:添加少量的纳米SiO2可提高PP的阻燃性能;当纳米SiO2添加量为1%时,阻燃PP的氧指数达28.5%。TGA和FTIR分析及SEM和体式显微镜观测结果表明:添加少量的纳米SiO可促进体系成炭,稳定炭层,从而提高材料的阻燃性能。Intumescent flame retardant（IFR） polypropylcne （PP） was prepared by melamine polyphosphate （MPP） and PEPA as flame retardants and nano-SiO2 as Synergistic agent. Effects of nano-SiO2 contents on flame retardancy of PP and synergistic effect between IFR and nano-SiO2 were studied. It was found that a little quantity of nano-SiO2 could improve the flame retardance of PP remarkably,when the mass fraction of nano-SiO2 was 1% respectively,LOl of flame retardant PP was 28.5 %. The results of TGA, FTIR,SEM and optical micrographs showed that a little quantity of nano-SiO2 could increase the char residue and stablize chars to improve the flame retardant performance of materials.

关 键 词：聚丙烯 膨胀阻燃 笼状季戊四醇磷酸酯 纳米二氧化硅 协同作用 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]