硅胶低聚物阻燃热塑性聚氨酯弹性体的研究  

Research of Flame Retardant Thermoplastic Polyurethane Elastomer Based on Silicone Oligomer

作　　者：王洪志[1] 焦传梅[1] 

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）》2017年第1期87-92,共6页Journal of Qingdao University of Science and Technology:Natural Science Edition

基　　金：国家自然科学基金项目(51106078;51206084);山东省高等学校科研计划项目(J14LA13)

摘　　要：为提高热塑性聚氨酯(TPU)的阻燃性能,以107硅树脂为阻燃剂,制备了系列阻燃热塑性聚氨酯复合材料。通过锥形量热仪(CCT)、烟密度仪和极限氧指数仪(LOI)等手段对复合材料的燃烧性能、生烟特性等进行研究。锥形量热仪实验结果表明,107硅树脂能够使TPU复合材料的热释放速率、总热释放、生烟速率等参数均有显著降低。其中,含0.2%107硅树脂的复合材料的热释放速率峰值为850kW·m-2,比纯TPU的热释放速率峰值(1 550kW·m-2)降低了45%。此外,107硅树脂还能够显著提高TPU复合材料炭渣质量。烟密度实验结果表明,TPU复合材料的光通量比纯TPU要降低很多。氧指数实验表明,107硅树脂不能明显提高TPU复合材料的氧指数。In order to enhance the flame retardant properties of thermoplastic polyurethane（TPU）,a series of thermoplastic polyurethane composites with different contents of 107 silicone were prepared using 107 silicone as flame retardant in this paper.Then,the combustion behavior and smoke production properties of the composites were evaluated using cone calorimeter test（CCT）,smoke density test,and limiting oxygen index（LOI）,respectively.The CCT results showed that the heat release rate（HRR）,total heat release（THR）,total smoke release（TSR）were significantly decreased with the increase of 107 silicone.For example,when the content of 107 silicone was 0.2%,the PKHRR of the composite was 850kW·m-2,which was reduced by 45%than that of pure TPU（1 550kW·m-2）.And the quality of carbon residue increased greatly.The smoke density results revealed that luminous flux of composite material reduced a lot than pure TPU.The LOI results were not obviouswith the addition of 107 silicone.In a word,it is conducive to flame retardant with the increase of 107 silicone.

关 键 词：热塑性聚氨酯 107硅树脂 阻燃 锥形量热仪 

分 类 号：TQ328[化学工程—合成树脂塑料工业]