协同改性聚氨酯保温材料的阻燃性能  

Flame-retardant properties of polyurethane insulation materials modified collaboratively

作　　者：王圣程 张云峰[2] 禄利刚 张朕 

机构地区：[1]徐州工程学院土木工程学院 [2]中国矿业大学安全工程学院,江苏徐州221116

出　　处：《中国安全科学学报》2017年第12期14-19,共6页China Safety Science Journal

摘　　要：为改善聚氨酯保温材料的阻燃性能,基于磷系阻燃剂(PFR)的高效性与可膨胀石墨(EG)的无毒性,将聚氨酯保温材料改性;通过测试改性与常规聚氨酯保温材料的热释放速率(HRR)、热重、氧指数等参数,对比分析2种聚氨酯保温材料的阻燃性能。结果显示,PFR改性聚氨酯保温材料的HRR峰值大幅度降低,点燃时间与HRR峰值时间延长,质量保持率提高,且三(1,3-二氯异丙基)磷酸酯(TDCPP)与四(2-氯乙基)二亚乙基醚二磷酸酯(CR-505)等质量配比时阻燃效果最佳;PFR与EG同时使用,产生协同叠加作用,能提高聚氨酯保温材料的阻燃效果。研究表明:改性聚氨酯保温材料比常规材料的热稳定性更好;PFR和EG协同改性聚氨酯保温材料的氧指数大于30%,为难燃材料。In order to improve the flame-retardant properties of polyurethane insulation materials,the polyurethane material was modified based on the high-efficiency of PFR and the non-toxicity of EG.Comparisons were made between the modified polyurethane insulation material and conventional polyurethane material in flame-retardant properties such as heat release rate,thermal weight,oxygen index and other parameters. The results show that the application of phosphorus flame retardant greatly reduces the heat release rate peak of polyurethane insulation materials,defers the ignition time and the peak time of heat release rate,and improves the quality retention rate of polyurethane materials,that the flame retardant effect is best when the mass ratio of three（ 1,3-two isopropyl chloride） phosphate（ TDCPP） and Four（ 2-chloro ethyl） two diethyl ether two phosphate ester（ CR-505） is 1 ∶1,that when PFR and EG are used together,the synergistic effect is added,and the flame retardant effect of the polyurethane insulating materials are further improved,that compared with the conventional polyurethane insulation material,the thermal stability of modified polyurethane insulation material is better,and that the oxygen index of polyurethane insulation material modified collaboratively by PFR and EG is more than30%,which means it is difficult to burn.

关 键 词：聚氨酯保温材料 磷系阻燃剂(PFR) 可膨胀石墨(EG) 协同改性 阻燃性能 

分 类 号：X932[环境科学与工程—安全科学]