纳米二氧化硅协效膨胀阻燃聚丙烯研究  

Study on Synergistic Intumescent Flame Retardant Polypropylene of Nano Silica

作　　者：李牛柱 朱赛赛 姜之涛 LI Niuzhu;ZHU Saisai;JIANG Zhitao(Hefei Cobel Advanced Plastics Co.,Ltd.,Hefei 231200,China)

机构地区：[1]合肥科拜尔新材料股份有限公司,安徽合肥231200

出　　处：《山东化工》2025年第4期33-35,40,共4页Shandong Chemical Industry

摘　　要：本研究旨在探讨纳米二氧化硅(SiO_(2))在膨胀阻燃聚丙烯(PP)复合材料中的协同效应,以提高其阻燃性以及热稳定性。研究人员在制备PP/IFR/SiO_(2)复合材料后,评估其极限氧指数(LOI)、燃烧行为等特性。通过对燃烧过程中热释放行为、烟气释放特性及炭层物相以及结构的分析,发现添加SiO_(2)能够显著降低PP复合材料的热释放速率及烟气释放量,进而提高其阻燃效果。研究结果表明,PP/IFR/SiO_(2)复合材料在力学性能以及熔融指数方面均表现出优越的性能,特别是在阻燃方面具有明显的提升。本研究揭示了纳米二氧化硅在膨胀阻燃聚丙烯中的协同效应,为开发新型高性能阻燃材料提供了理论基础。The aim of this study was to investigate the synergistic effect of nano-silica(SiO_(2))on intumescent flame retardant polypropylene(PP)composites in order to improve their flame retardancy and thermal stability.After preparing PP/IFR/SiO_(2) composites,the researchers evaluated their limiting oxygen index(LOI),combustion behavior and other characteristics.Through the analysis of heat release behavior,gas release characteristics,carbon phase and structure during combustion,it is found that adding SiO_(2) can significantly reduce the heat release rate and gas release amount of PP composites,and improve the flame retardant effect.The results show that PP/IFR/SiO_(2) composites have excellent mechanical properties and melting index,especially in flame retardant.This study revealed the synergistic effect of nano-silica in expanded flame retardant polypropylene,and provided a theoretical basis for the development of new flame retardant materials with high performance.

关 键 词：纳米二氧化硅 膨胀阻燃聚丙烯 热释放速率 烟气释放量 阻燃效果 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]