表面活性剂与b-MAP的协同作用对聚丙烯阻燃性能的影响

Synergistic Effect of Surfactant and b-MAP on Flame Retardancy of Polypropylene

研究了表面活性剂十二烷基苯磺酸钠 (DSAS)和硬脂酸钠 (SS)与膨胀型阻燃剂b MAP的协同作用对聚丙烯阻燃性能的影响。发现适量 (4 % )的添加表面活性剂可以提高PP/b MAP阻燃材料的极限氧指数 (LOI) ,并且使PP/b MAP燃烧后残炭量增加 ,同时改变炭层的微观形貌 ,从而进一步提高材料的阻燃性能。

The synergistic effect of surfactant and b-MAP on flame retardancy of polypropylene was studied. The surfactants refer to dodecylbenzenesulphonic acid sodium(DSAS) and sodium stearate(SS).The introduction of a suitable amount of surfactant (4 %) can increase the char residue of PP/b-MAP composite,change the micromorphology of char.Flame retardancy of PP/b-MAP was also improved.