硬质聚氨酯泡沫/EG/MPP复合材料的制备及阻燃性能  

Preparation and Flame Retardancy of Rigid Polyurethane Foam/Expanded Graphite/Melamine Pyrophosphate Composites

作　　者：杨武洲 陈婷 伍强 唐刚[2] YANG Wuzhou;CHEN Ting;WU Qiang;TANG Gang(Ma anshan Fire Rescue Detachment,Ma anshan 243000,China;School of Architecture and Civil Engineering,Anhui University of Technology,Ma anshan 243002,China)

机构地区：[1]马鞍山市消防救援支队,安徽马鞍山243000 [2]安徽工业大学建筑工程学院,安徽马鞍山243002

出　　处：《塑料工业》2024年第5期147-152,共6页China Plastics Industry

基　　金：安徽省自然基金面上项目(2108085ME178);安徽省住房城乡建设科学技术计划项目(2023-RK009)。

摘　　要：将三聚氰胺聚磷酸盐(MPP)与可膨胀石墨(EG)进行复配,并采用一步法全水发泡法制备了硬质聚氨酯泡沫/可膨胀石墨/三聚氰胺聚磷酸盐(RPUF/EG/MPP)复合材料。在此基础上,采用热重分析(TG)、阻燃测试、微型量热(MCC)、扫描电镜(SEM)系统研究RPUF/EG/MPP复合材料的热稳定性、阻燃性、燃烧特性和炭渣微观形貌。研究表明,EG和MPP的加入可以明显提高RPUF/EG/MPP复合材料的热稳定性,40.6份MPP和20.3份EG的加入使得RPUF-2在800℃时,残炭率高达31.7%。阻燃测试表明,MPP和EG之间存在协效阻燃作用,其最大极限氧指数可达29.9%。微型量热测试表明,MPP和EG的加入可以有效降低RPUF复合材料燃烧过程中的热释放,提升其火灾安全性能。Melamine pyrophosphate(MPP)was combined with expanded graphite(EG),and rigid polyurethane foam/expanded graphite/melamine pyrophosphate(RPUF/EG/MPP)composites were prepared by a one-step all-water-blown method.On this basis,thermogravimetric analysis(TG),flame retardant tests,microscale combustion calorimeter(MCC)and scanning electron microscope(SEM)were applied to investigate the thermal stability,flame retardancy,combustion property and char residue micromorphology of the RPUF/EG/MPP composites.The results show that the incorporation of MPP and EG can significantly enhance thermal stability of the composites.RPUF-2 with MPP of 40.6 phr and EG of 20.3 phr has a high carbon yield of 31.7%at 800 o C.The flame retardant tests show the synergistic effect between MPP and EG,the maximal limiting oxygen index of RPUF/EG/MPP composites is 29.9%.MCC tests show that the addition of MPP and EG could effectively decrease the heat release of the composites during combustion,enhancing the fire safety of the composites.

关 键 词：硬质聚氨酯泡沫 可膨胀石墨 三聚氰胺聚磷酸盐 复合材料 协效阻燃 

分 类 号：TQ323[化学工程—合成树脂塑料工业]