MWCNTs对LGFPP/红磷阻燃体系性能的影响  

Effect of MWCNTs on Properties of LGFPP/Red Phosphorus Flame Retardant System

作　　者：慈书亭 何敏[1] 陈香宇[1] 张景中[1] 郭建兵[2] 刘玉春[1] 刘渝 

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

出　　处：《塑料科技》2014年第9期39-43,共5页Plastics Science and Technology

基　　金：2013贵州省科学技术基金(黔科合J字[2013]2122号);贵州省科技计划(黔科合GY字[2013]30262012)

摘　　要：用熔融共混法制备了长玻纤增强聚丙烯/红磷/多壁碳纳米管(LGFPP/RP/MWCNTs)复合材料。氧指数(OI)测试结果表明:MWCNTs的加入提高了LGFPP/RP阻燃体系的阻燃性能。在LGFPP/RP阻燃体系中添加1%的MWCNTs后,LGFPP/RP/MWCNTs复合材料的OI提高到23.4%。热失重分析(TGA)研究表明:在氮气气氛下MWCNTs提高了LGFPP/RP阻燃体系的热稳定性。1%的MWNTs可使LGFPP/RP阻燃体系的热分解起始温度提高12.4℃。力学性能测试结果表明:MWCNTs的加入提高了LGFPP/RP阻燃体系的力学性能。在LGFPP/RP阻燃体系中添加1%的MWNTs后,LGFPP/RP/MWCNTs复合材料的拉伸强度、弯曲强度和冲击强度分别提高了3.2%、12.3%和7.7%。Nanocomposites based on long glass fiber reinforced polypropylene（LGFPP）, red phosphorus（RP） and multi-walled carbon nanotubes（MWCNTs） were manufactured by melt blending. The result of limiting oxygen index（LOI） shows that the addition of MWCNTs can improve the flame retardant capacity of LGFPP/RP flame retardant system. The OI of LGFPP/RP/MWNTs composite improves to 23.4% with adding 1% MWNTs into LGFPP/RP flame retardant system. Thermal gravimetric analysis（TGA） shows that carbon nanotubes significantly enhance the thermal stability of LGFPP/RP in nitrogen. The temperature of onset decomposition is 12.4℃ higher than that of LGFPP/RP for nanocomposites with loading 1% MWCNTs. Mechanical tests show that the addition of MWNTs can improve the mechanical properties of LGFPP/RP flame retardant system. The tensile strength, flexural strength and impact strength improve 3.2%, 12.3% and 7.7% with adding 1% MWCNTs into LGFPP/RP flame retardant system, respectively.

关 键 词：长玻纤增强聚丙烯 无卤阻燃 红磷 碳纳米管 复合材料 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]