一种优异的二维阻燃剂:几层黑
Taiming Zhang1,2, Huanyu Xie2, Shuai Xie2
1State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, 2# Sipailou, Nanjing 210096, China.
Molecules (Basel, Switzerland)
|July 14, 2023
概括
与红色纳米粒子和三酸相比,少数层的黑在纤维素中显示出更高的阻燃效率. 这种先进的材料由于其独特的结构和热性能,可以提供增强的防火保护.
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
- 消防安全工程 消防安全工程
背景情况:
- 阻燃剂对于保护生命和财产免受火灾至关重要.
- 基于的阻燃剂是化合物的有希望的替代品,因为它们的毒性较低,效率更高.
- 二维黑是一种新兴材料,具有潜在的阻燃应用.
研究的目的:
- 为了比较少数层黑 (FLBP) 与传统阻燃剂的阻燃性能.
- 评估FLBP作为纤维素和多烯二模型材料中的添加剂.
- 阐明FLBP超级阻燃性背后的机制.
主要方法:
- 对FLBP,红色纳米颗粒和三酸作为阻燃剂的比较分析.
- 在纤维素和聚烯二烯模型系统中测试阻燃效率.
- 使用热重力测量分析 (TGA) 和燃烧度测量来描述燃烧行为.
- 对炭层形态和化学成分的分析.
主要成果:
- 在纤维素中,FLBP的阻燃效率显著高于纤维素,其自灭性能大约是红色纳米粒子和三酸的1.8至4.4倍.
- 与其他添加剂相比,用FLBP处理的纤维素形成了一个更连续,更光滑的炭层,其残留量增加了 (10-14 wt%).
- 与红色纳米粒子 (-381.3 kJ mol-1) 相比,FLBP显示了较低的燃烧变化 (-127.1 kJ mol-1).
结论:
- 少数层的黑显示出特殊的阻燃能力,特别是在纤维素基材料中.
- FLBP的优越性能归因于其二维结构和固有的热特性,这些特性有效地抑制了燃烧反应.
- FLBP是一种非常有前途的下一代阻燃剂,有可能在消防安全领域得到广泛应用.
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