摘要
以四氟硼酸盐离子液体对空心微珠(HGM)进行物理改性,采用熔融共混法制得新型阻燃热塑性聚氨酯弹性体(TPU)复合材料。使用锥形量热仪(CCT)、热重分析仪(TG)及热重红外联用方法(TG-IR)等测定分析TPU复合材料的阻燃、抑烟和热稳定性,研究不同组分配比对TPU燃烧行为的影响。结果表明,采用四氟硼酸盐离子液体对HGM进行物理改性后,两者协效阻燃,显著改善TPU的阻燃、抑烟效果,增强TPU的热稳定性,降低了材料的火灾危险性。最佳组分配比为n(TPU)∶n(HGM)∶n(离子液体)=99∶0.995∶0.005,即TPU-4。
Hollow microspheres （HGM） were physically modified with tetrafluoroborate ionic liquid and a new flame retardant thermoplastic polyester （TPU） composite was prepared by the method of melt-blending. The flame retardant, smoke suppression properties and thermal stability of TPU composites were analyzed by cone calorimeter test （CCT）, thermogravimetric analyzer （TG） and thermogravimetric analysis/infrared spectrometry （TG-IR）. And, The effects of different components on the combustion behavior of TPU were investigated. The results show that HGM was physically modified by tetrafluoroborate ionic liquid, and the synergistic flame retardancy was achieved. It significantly improved the flame retardancy, smoke suppression effect and thermal stability of TPU and the fire hazard was reduced. The best composition ratio n （TPU）∶ n （HGM）∶ n （ionic liquid） is 99∶0.995∶0.005, which is TPU-4.
作者
池秀文
陈和燕
李梦春
CHI Xiuwei;CHEN Heyan;LI Mengchun(Institution of Resources and Environmental Engineering,Wuhan University of Technology,Wuhan 430070,China)
出处
《功能材料》
EI
CAS
CSCD
北大核心
2018年第6期168-172,共5页
Journal of Functional Materials
关键词
热塑性聚氨酯弹性体
离子液体
空心微珠
协效阻燃
thermoplastic polyurethane
Ionic liquid
hollow microspheres
synergistic flame retardant
