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文章编号： 1672-6987（2023）03-0045-09； DOI： 10.16351/j.1672-6987.2023.03.006
徐亮1， 王珂2， 陈希磊2* (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)
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CO2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。
关键词： 柠檬酸铜； 热塑性弹性体； 阻燃抑烟； 锥形量热仪
中图分类号： TQ 328文献标志码： A
引用格式： 徐亮， 王珂， 陈希磊. 柠檬酸铜协同聚磷酸铵制备阻燃TPU［J］. 青岛科技大学学报(自然科学版), 2023, 44(3): 45-53.
XU Liang, WANG Ke, CHEN Xilei. Synergistic flame retardant TPU with copper citrate and ammonium polyphosphate［J］. Journal of Qingdao University of Science and Technology（Natural Science Edition), 2023， 44（3）： 45-53.
Synergistic Flame Retardant TPU with Copper Citrate and Ammonium Polyphosphate
XU Liang1, WANG Ke2, CHEN Xilei2
(1. Shandong Taixing New Material Co., Ltd., Jinan 250200, China;
2. College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China)
Abstract: 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 CO2 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.
Key words: copper citrate; thermoplastic elastomer; flame retardant and smoke suppression; cone calorimeter
收稿日期： 2022-05-18
基金项目： 国家自然科学基金项目（51776101）.
作者简介： 徐亮（1983—），男，工程师．*通信联系人.
