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生物基的宿主-客体复合物使MXene能够通过受限催化实现多功能防火环氧体

Rong Kuai¹, Zhi Li¹, Han Li¹

¹China-Spain Collaborative Research Center for Advanced Materials (CSCRC), School of Materials Science and Engineering, Chongqing Jiaotong University, 400074 Chongqing, China; Institute for New Energy Materials and Equipment in Transportation，Chongqing Jiaotong University, 400074 Chongqing, China.

Journal of colloid and interface science

|December 30, 2025

概括

使用铁和MXene的新型生物基环氧复合材料可以在没有传统阻燃剂的情况下实现出色的消防安全和机械性能. 这种先进的材料还提供了防火报警和降解能力.

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
纳米技术纳米技术

背景情况:

高性能环氧树脂对于航空和涂料等苛刻应用至关重要.
开发防火,机械坚固和多功能聚合物仍然是一个重大挑战.
现有的阻燃剂通常涉及危险元素,并可能损害材料的性能.

研究的目的:

为了设计一种新的,多功能环氧复合材料,增强消防安全和机械强度.
探索一个基于生物的宿主-客体铁化学物质,用于封闭的MXene组件.
为了在没有传统阻燃元件的情况下实现高阻燃效率.

主要方法:

使用基于生物的宿主-客体铁化学的MXene的同步间隔和表面组装.
在超低负荷 (2 wt%) 的情况下将合成的混合MXene@CD@Ferr-Fe纳入环氧矩阵.
评估消防安全 (UL-94 V-0,LOI,热释放率,烟雾产生),机械性能,热电敏度,光热转换和可降解性.

主要成果:

获得UL-94 V-0评级,限制氧气指数为29.5%,并显著减少峰值热释放率 (40.3%) 和烟雾产生 (42.0%).
显示明显改善的机械性能.
在3秒内表现出热电火灾报警功能 (Seebeck系数~6.3μV/K) 和增强的光热转换 (300秒内增加45°C).
由于受限铁催化,在温和的辅溶剂中在11小时内表现出82%的重量降解率.
该机制揭示了一种双模式的铁催化烧焦反应.

结论:

无P/N/Si封闭催化工程策略为高阻燃效率提供了一种新的方法.
开发的环氧复合材料具有出色的消防安全性,机械强度和多功能性.
这项工作将铁素化学的应用扩展到2D材料,用于先进的聚合物设计.

关键词:

环氧树脂是一种环氧树脂.铁素化学铁素化学火焰阻击能力阻击能力这就是MXene MXene.多功能的多功能.

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