阻燃LGFPP的阻燃性能研究  

Flame Retardant Properties of Flame Retardant LGFPP

作　　者：罗兴 何敏[2] Luo Xing;He Min(School of Chemistry and Engineering of Guizhou Industry Polytechnic College, Guiyang,Guizhou, 551400;College of Materials Science and Metallugry Engineering of Guizhou University,Guiyang,Guizhou, 550025)

机构地区：[1]贵州工业职业技术学院化学与工程学院,贵州贵阳551400 [2]贵州大学材料与冶金学院,贵州贵阳550025

出　　处：《现代塑料加工应用》2020年第2期12-15,共4页Modern Plastics Processing and Applications

摘　　要：将有机蒙脱土(OMMT)和水滑石(LDH)分别与膨胀阻燃剂(IFR)构成阻燃体系,对长玻纤增强聚丙烯(LGFPP)复合材料进行阻燃改性,通过极限氧指数(LOI)和锥形量热仪(CONE)测试,对比研究了两种体系阻燃LGFPP的阻燃性能及阻燃机理。结果表明:当OMMT质量分数为2%时,复合材料的LOI达到最大值24.2%,且垂直燃烧达到了UL-94 V-0级;当LDH质量分数为1%时,LOI达到最大值23.3%,而垂直燃烧等级仍为V-1级。以炭层阻隔的IFR/OMMT体系比以稀释阻燃的IFR/LDH体系更加有效地改善LGFPP的阻燃性能。LGFPP was modified by flame retardants including OMMT and LDH with IFR.The flame retadancy and flame retadant mechanism of IFR/OMMT and IFR/LDH flame retardant on LGFPP were compared by using LOI and CONE.The results showed that when the OMMT addition was 2%,the LOI of the composite reached a maximum of 24.2%and the vertical combustion was UL-94 V-0.When the LDH addition was 1%,the LOI reached a maximum of 23.3%and the vertical combustion level was still V-1.The carbon layer barrier mechanism of IFR/OMMT flame retardant system was more effective in improving the flame retardant performance of LGFPP than the dilution mechanism of IFR/LDH flame retardant system.

关 键 词：长玻纤增强聚丙烯 阻燃 机理 有机蒙脱土 水滑石 

分 类 号：TQ3[化学工程]