硅胶与膨胀型阻燃剂复配阻燃LGF/PP复合材料的性能研究  

Study on Intumescent Flame Retardant and Synergistic Effect for LGF/PP Composites

作　　者：何俊 龙安绿 张平 HE Jun;LONG An-lv;ZHANG Ping(Guizhou Avademy of Testing and Analysis,Guiyang,55000)

机构地区：[1]贵州省分析测试研究院,贵州贵阳550002

出　　处：《胶体与聚合物》2018年第2期55-58,共4页Chinese Journal of Colloid & Polymer

摘　　要：研究硅胶(SG)作为协效剂与IFR协同阻燃LGF/PP复合材料的性能。通过极限氧指数(LOI)、垂直燃烧(UL-94)、锥形量热仪(CONE)、热重分析法(TG)、扫描电子显微镜(SEM)、力学性能等测试表征LGF/PP/IFR/SG阻燃复合体系的性能。结果表明:当硅胶用量为2%时,阻燃复合材料的LOI为29.4%,且燃烧等级达到V-0级;CONE测试结果表明LGF/PP/IFR/SG阻燃复合材料的第一热释放速率峰值降低,而第二热释放速率峰消失;LGF/PP/IFR/SG阻燃复合材料具有较好的热稳定性,且产生致密均匀的炭层;并研究硅胶用量对复合材料力学性能的影响。The silica gel（SG） was used as association effect of flame retardants, the flame retardant association performance of LGF/PP composites was studied. The properties of the flame retardant LGF/PP/IFR/SG composites were inverstigated by the limited oxygen index（LOI） and UL 94 tests, cone calorimeter test（CONE）, thermal gravimetry（TG）, scanning electron microscope（SEM） and mechanical tests.The results showed that when the content of SG was 2%, the LOI value of the composites reaches29.4%, and the vertical burning test reached UL-94 V-0 rate. The CONE results showed that the values of the first HRR peak decreased and the second HRR peak almost vanished in the LGF/PP/IFR/SG composites.LGF/PP/IFR/SG composites have good thermal stability, and produce dense and uniform carbon layer. What＇s more, the properties of LGF/PP/IFR/SG composites with diffefent SG content were studied.

关 键 词：长玻纤增强聚丙烯复合材料 膨胀型阻燃剂 硅胶 阻燃性能 燃烧性能 

分 类 号：TQ327.1[化学工程—合成树脂塑料工业]