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超细干粉灭火剂的修改和应用性能研究

Yurong Liu¹, Ruiyu Chen¹, Shuanglin Guo¹

¹School of Safety Science and Engineering (School of Emergency Management), Nanjing University of Science and Technology, Nanjing 210094, China.

Molecules (Basel, Switzerland)

|August 29, 2024

概括

一种新的FOTS和PFPE组合显著提高了航空消防的超细干粉灭火剂 (UDPEA) 的性能. 这种优化的UDPEA提供了卓越的灭火和抗再点燃性能,作为环保的替代品.

科学领域:

材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.
消防安全工程消防安全工程

背景情况:

超细干粉灭火剂 (UDPEA) 是航空消防中的一个关键的替代品.
有效的UDPEA配方需要平衡环保,高灭火效率,良好的流动性和长时间的反复点火能力.

研究的目的:

调查 perfluorooctyl triethoxysilane (FOTS) 和 N-(3-Triethoxysilylpropyl) perfluoro(2,5-dimethyl-3,6-dioxanonanoyl) amide (PFPE) 修改对基于二碳酸的UDPEA的影响.
确定FOTS和PFPE的最佳质量比,以提高UDPEA的性能.
阐明修改后的UDPEA的灭火和反重新点燃机制.

主要方法:

用单个FOTS,单个PFPE和组合FOTS/PFPE在各种质量比率上修改基于二碳酸的UDPEA.
通过接触角测量评估疏水性和疏油性.
评估流动性,灭火度,灭火时间和反重新点火时间.

主要成果:

单个FOTS或PFPE应用改善了接触角度,但不达到要求的标准,并降低了流动性和灭火能力.
1:2的最佳FOTS:PFPE质量比导致了卓越的性能:水接触角度145.169°,油接触角度143.542°,最低的流动性指数 (0.224),减少灭火度 (14.183 g/m3),减少灭火时间 (1.976 秒),以及最长的反重新点火时间 (68.5 秒).
与未经修改的药物相比,修改后的UDPEA显著提高了性能.

结论:

在1:2比率的FOTS和PFPE的组合在增强航空消防UDPEA性能方面非常有效.
优化的UDPEA为哈隆剂提供了一个有希望的,环保的替代品,满足关键性能要求.
这些发现为开发和选择先进的航空灭火剂提供了宝贵的见解.

关键词:

应用程序的性能应用程序的性能航空消防航空消防碳结构的结构是碳的结构.超细干粉灭火剂是一种超细干粉灭火剂.

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