制备了一种阻燃聚丙烯/且彭胀阻燃剂(IFR)/蒙脱土(MMT)膨胀阻燃体系,研究了不同阻燃组分含量对体系阻燃性能的影响.结果表明,阻燃剂总添加量为30%,其中的成炭剂和聚磷酸铵(APP)的配比为1:2时,体系的极限氧指数为29%,垂直燃烧试验(UL-94)达到V-2级;而在上述体系中添加0.5%的IVIMT时,体系的LOI提高到31%,垂直燃烧试验(UL-94)通过V-0级,表现出较好的协同阻燃效果.采用扫描电境(SEM)和红外光谱(ET-IR)对体系的固相残炭进行了观察和分析,探讨了可能的阻燃机理.
参考文献
[1] | Tang, Y;Hu, Y;Song, L;Zong, RW;Gui, Z;Fan, WC .Preparation and combustion properties polypropylene-polyamide-6 of flame retarded alloys[J].Polymer Degradation and Stability,2006(2):234-241. |
[2] | Ge XG;Wang DY;Wang C;Qu MH;Wang JS;Zhao CS;Jing XK;Wang YZ .A novel phosphorus-containing copolyester/montmorillonite nanocomposites with improved flame retardancy[J].European Polymer Journal,2007(7):2882-2890. |
[3] | Samyn F;Bourbigot S;Jama C;Bellayer S;Nazare S;Hull R;Fina A;Castrovinci A;Camino G .Characterisation of the dispersion in polymer flame retarded nanocomposites[J].European Polymer Journal,2008(6):1631-1641. |
[4] | Li Q;Zhong HF;Wei P;Jiang PK .Thermal degradation behaviors of polypropylene with novel silicon-containing intumescent flame retardant[J].Journal of Applied Polymer Science,2005(6):2487-2492. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%