空心玻璃微珠与咪唑型离子液体组合阻燃热塑性聚氨酯弹性体  

Flame Retardant Thermoplastic Polyurethane Based on the Combination of Hollow Glass Microspheres and Imidazole Ionic Liquids

作　　者：王洪志[1] 焦传梅[1] WANG Hongzhi;JIAO Chuanmei(College of Environment and Safety Engineering,Qingdao University of Science and Technology,Qingdao 2GG042,Chin)

机构地区：[1]青岛科技大学环境与安全工程学院,山东青岛266042

出　　处：《青岛科技大学学报（自然科学版）》2018年第4期60-67,共8页Journal of Qingdao University of Science and Technology:Natural Science Edition

基　　金：国家自然科学基金面上项目(51776101)

摘　　要：采用空心玻璃微珠(HGM)与1-乙酸乙酯基-3-甲基咪唑四氟硼酸盐([EOOEMIm]·[BF_4])离子液体组合阻燃热塑性聚氨酯弹性体(TPU),并通过锥形量热仪(CCT)、烟密度仪(SDT)和热重红外联用(TG-IR)等手段研究了阻燃TPU的燃烧和热降解性能。锥形量热仪实验结果表明,HGM与[EOOEMIm][BF_4]的组合物能够显著提高TPU的阻燃性能。其中0.005%(质量分数)[EOOEMIm][BF_4]和0.995%(质量分数)HGM组合使TPU的热释放速率峰值(PHRR)降至最低(431.44kW·m^(-2))(TPU4),比纯TPU(1 417.37kW·m^(-2))与只含空心玻璃微珠的复合材料(537.80kW·m^(-2))分别降低了69.56%和19.78%。烟密度实验表明,无焰条件下HGM与[EOOEMIm][BF_4]的组合物能够使得光通量(LF)显著提高。TG-IR结果显示,HGM与[EOOEMIm][BF_4]的组合物能够提高TPU的热稳定性,降低有毒气体的生成。In this paper,a series of flame retardant thermoplastic polyurethane（TPU）composites were prepared based on the combination of hollow glass microspheres（HGM）and 1-（（ethoxycarbonyl）methyl）-3-methylimidazolium tetrafluoroborate（[EOOEMIm][BF4]）.The combustion behavior and thermal degradation properties of TPU composites were investigated by cone calorimeter test（CCT）,smoke density test（SDT）,and thermogravimetric analysis/infrared spectrometry（TG-IR）,respectively.The CCT results showed that the introduction of HGM and[EOOEMIm][BF4]into TPU can significantly improve the flame re-tardant performance of TPU.The peak value of heat release rate（PHRR）from the composite containing 0.995%（mass content）HGM and 0.005% [EOOEMIm][BF4]was the lowest（431.44 kW·m^（-2））,reduced by 69.56% and 19.78% respectively,compared with pure TPU and the composite only containing HGM.The SDT results indicated that the combination of HGM and[EOOEMIm][BF4]could greatly improve the luminous flux（LF）of flame retardant TPU composites in the test without flame.TG-IR data revealed that the combination of HGM and[EOOEMIm][BF4]could improve the thermal stability of TPU and reduce the production of some toxic gases.

关 键 词：热塑性聚氨酯弹性体 空心玻璃微珠 离子液体 锥形量热仪 

分 类 号：TQ328[化学工程—合成树脂塑料工业]