摘要
研究咪唑基离子液体1-丁基-3-甲基咪唑六氟磷酸盐([BMIM]PF6)对Al(OH)3进行改性后对硬质聚氨酯泡沫阻燃性能的影响。结果表明:改性后的A1(OH)3阻燃效果明显增加,氧指数从22.3提高到24.5;在改性过程中,离子液体的添加量的不同对阻燃效果也有很明显的影响,当[BMIM]PF6与Al(OH)3的质量比为5∶5时,阻燃效果最好;与改性前相比,改性后Al(OH)3可以有效的提高材料的不燃烧性,水平燃烧速率从70.8mm/min降为34.9mm/min。通过热分析可以看出,改性后Al(OH)3硬质聚氨酯泡沫热分解温度升高,分解残留物增加,放热量大大减小,离子液体的加入可以有效的抑制硬质聚氨酯的分解,提高热稳定性。
In this paper, the study of AI（OH）a modified by imid- azolium based Ionic Liquid 1-butyl-methylimidazolium hexaflu- orophosphate （[BMIM]PF6） on polyurethane rigid foam flameretardant properties was conducted. The results show that the flame retardant properties of AI（OH）3 modified with Ionic Liq- uid significantly increased and the LOI increased form 22. 3 to 24.5. In the modification process, the ionic liquid mass have a very noticeable effect to the flame retardant property and when FBMIM^PF~ and AI（OH）3 in quality was 5 ： 5 Fire-retardant effect was best. Compared with the prior to the modification, AI（OH）a modified can increase effective Flame resistance of materials, horizontal burning speed from 70.8 mm/min down to 34.9 mm/min. Thermal degradation data show that AI（OH）3 modified could improve initial decomposition temperature and reminder yield of rigid polyurethane foam, and then heat release reduced, the decomposition controlled, thermal stability in- creased.
出处
《消防科学与技术》
CAS
北大核心
2013年第4期434-437,共4页
Fire Science and Technology
