内在的阻燃性和灵活的固体-固体相变材料具有自我愈合和可回收性
Shijie Bai1, Kaixi Zhang1, Qun Zhang1
1Beijing Key Laboratory of Clothing Materials R&D and Assessment, Beijing Engineering Research Center of Textile Nanofiber, School of Materials Design & Engineering, Beijing Institute of Fashion Technology, Beijing 100029, P. R. China.
使用聚氨网开发了新的阻燃固体-固体相变材料 (PCM). 这些材料为储能设备提供了更高的安全性和可回收性.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 可持续能源 可持续能源
背景情况:
- 传统的聚合物相变材料 (PCM) 提供高热储量,但具有易燃性和低可回收性.
- 阻燃剂的物理混合降低了PCM的机械和热性能.
研究的目的:
- 合成具有内在阻燃性,相变能力,自我修复性和可回收性的新型阻燃固体PCM (FRPCMs).
- 克服传统PCM在能量存储设备 (ESD) 中的局限性.
主要方法:
- 在聚氨网络骨架中同时集成四博二甲 (TBBPA) 和聚乙烯甘醇 (PEG).
- 聚乙烯作为相变材料,而TBBPA提供阻燃性和动态共价键,用于自我修复和可回收.
主要成果:
- 合成的FRPCM显示出124.7J/g的高潜热,优秀的自我愈合能力和强大的热可靠性.
- 加入TBBPA显著增加了限制氧指数 (LOI) 和炭残留物,同时降低了热释放率 (HRR) 和总热释放率 (THR).
- 大多数FRPCM都获得了UL94 V-2评级,这表明消防安全得到了改善.
结论:
- 开发的FRPCM具有内在的阻燃性,相变性,自我修复性和可回收性.
- 这些先进材料显示出在热能储存中扩大应用的潜力.
- 该研究提出了一种有希望的方法,用于为ESDs创建更安全,更可持续的PCM.
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