MPP/MMT阻燃PVA的研究  

Studies on Melamine Polyphosphate/Montmorillonite Flame Retarded Poly(vinyl alcohol)

作　　者：吴梦茜[1] 金李清[1] 黄国波[1] 陈建霞[1] 

机构地区：[1]台州学院医药化工学院,浙江临海317000

出　　处：《现代塑料加工应用》2013年第1期43-45,共3页Modern Plastics Processing and Applications

基　　金：浙江省自然科学基金(Y4110026)项目资助

摘　　要：用聚磷酸三聚氰胺(MPP)与蒙脱土(MMT)阻燃体系对聚乙烯醇(PVA)改性。结果发现:当PVA/MPP/MMT的质量比为80/15/5时,所得的PVA/MPP/MM复合材料可达到UL94V-0级,极限氧指数(LOI)达32.2%;相比纯的PVA,PVA/MMT/MPP复合材料的热释放速率峰值降低了57%,点燃时间延长了37s,热释放总量和平均质量损失速率均有明显降低。热失重分析结果表明阻燃剂MPP和MMT复配使用提高了PVA热稳定性能。The flame-retardant system of melamine polyphosphate （MPP）/montmo- rillonite （MMT） was applied to modify PVA. The results show that when the mass ra- tio of PVA/MPP/MMT is 80/15/5, the PVA/MPP/MMT composites reaches UL94 V-0 and its LOI is 32.2%. Compared with pure PVA, the peak heat release rate of the PVA/MPP/MMT composites is reduced by about 57~, and the ignition time of the PVA/MPP/MMT composites is extened 37 s. Moreover, both total heat release and av- erage mass loss rate of the PVA/MPP/MMT composites are lower than those of pure PVA. TGA results show that the thermal stability of PVA is improved by the combi- nation of MPP and MMT.

关 键 词：聚乙烯醇 阻燃性 蒙脱土 聚磷酸三聚氰胺 复合材料 热稳定性 

分 类 号：TQ325.9[化学工程—合成树脂塑料工业]