基于电池固废的阻燃聚氨酯复合材料性能

材料科学与工程

基于电池固废的阻燃聚氨酯复合材料性能

陶熠，

章亚妮，

王飞龙，

张贺新，

刘秀玉，

唐刚

中国有色金属学报

第34卷, 第11期

pp.3657-3668

纸质出版 2024-11-28

DOI：10.11817/j.ysxb.1004.0609.2024-44800

中图分类号：TQ334.1

9300

本研究通过高温煅烧和碱液浸出处理废旧锂电池正极材料(NCM)，并将其与焦磷酸哌嗪(PAPP)结合，通过熔融共混技术制备了阻燃热塑性聚氨酯弹性体复合材料；采用万能试验机、热重分析(TG)、极限氧指数(LOI)、垂直燃烧(UL-94)、锥量热法(CCT)等方法评估了复合材料的性能。结果表明：NCM的加入能改善TPU复合材料的力学性能和阻燃性能，LOI从22.5%提升至27.6%(体积分数)，UL-94达到V-0级。锥量热测试显示：添加NCM和PAPP后，复合材料的释热速率(PHRR)、总释放热(THR)相对于纯样分别降低了71.1%与21.9%，防火安全性能显著提升。炭渣分析表明：NCM和PAPP复配有助于形成致密的石墨化炭层，增强复合材料的耐火性。

电池固废正极材料焦磷酸哌嗪聚氨酯弹性体阻燃

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