柠檬酸铜协同聚磷酸铵制备阻燃TPU  

Synergistic Flame Retardant TPU with Copper Citrate and Ammonium Polyphosphate

作　　者：徐亮 王珂 陈希磊[2] XU Liang;WANG Ke;CHEN Xilei(Shandong Taixing New Material Co.,Ltd.,Jinan 250200,China;College of Environment and Safety Engineering,Qingdao University of Science and Technology,Qingdao 266042,China)

机构地区：[1]山东泰星新材料股份有限公司,山东济南250200 [2]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）》2023年第3期45-53,共9页Journal of Qingdao University of Science and Technology:Natural Science Edition

基　　金：国家自然科学基金项目(51776101).

摘　　要：以柠檬酸铜(CuC)为协效剂,聚磷酸铵(APP)为阻燃剂,制备了阻燃热塑性聚氨酯复合材料(TPU/APP/CuC),并通过极限氧指数(LOI)、锥形量热仪(CCT)和烟密度仪(SDT)等手段研究了TPU/APP/CuC复合材料的阻燃性能,通过热重-红外联用(TG-IR)研究了TPU/APP/CuC复合材料的热降解性能。实验结果表明:CuC能够显著提升TPU/APP/CuC复合材料的阻燃和抑烟性能;可以提高TPU/APP/CuC复合材料的光通量(LF),降低比光密度(Ds)。TG-IR结果表明,CuC能够降低CO_(2)以及芳香化合物(烟气主要来源)的生成,提高TPU/APP/CuC复合材料的高温热稳定性。CuC通过促进APP分解、提高炭层致密性和炭渣石墨化程度,从而提高TPU/APP/CuC复合材料的阻燃抑烟性能。In this paper,flame retardant thermoplastic polyurethane composites(TPU/APP/CuC)were prepared with copper citrate(CuC)as synergistic agent and ammonium polyphosphate(APP)as flame retardant.The flame retardant properties of TPU/APP/CuC composites were studied by limiting oxygen index(LOI),cone calorimeter(CCT)and smoke density meter(SDT).The thermal degradation properties of TPU/APP/CuC composites were studied.The experimental results showed that CuC can significantly improve the flame retardant and smoke suppression properties of TPU/APP/CuC composites;it can improve the luminous flux(LF)and reduce the specific optical density(DS)of TPU/APP/CuC composites.The TG-IR results showed that CuC can reduce the formation of CO_(2)and aromatic compounds(the main source of flue gas)and improve the thermal stability of TPU/APP/CuC composites at high temperature.CuC improves the flame retardant and smoke suppression properties of TPU/APP/CuC composites by promoting the decomposition of APP,improving the compactness and the graphitization degree of char residue layer.

关 键 词：柠檬酸铜 热塑性弹性体 阻燃抑烟 锥形量热仪 

分 类 号：TQ328[化学工程—合成树脂塑料工业]