在现场聚合的旅游/聚烯/纤维素气凝用于耐火和智能消防报警传感器
Xiaohan Sun1, Fangmiao Wang2, Yuan Yu2
1Key Laboratory of Bio-Based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, PR China; School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China.
International journal of biological macromolecules
|April 3, 2025
概括
为智能消防报警器开发了一种新型的阻燃性纤维素气凝 (TPLA). 这种先进的材料显著降低了火灾风险,并提供了早期警告,提高了建筑物的安全性.
科学领域:
- 材料科学 材料科学 材料科学
- 消防安全工程 消防安全工程
- 传感器技术 传感器技术
背景情况:
- 涉及木质材料的建筑火灾对生命和财产构成重大风险.
- 迫切需要智能,高效的火灾预警系统,使用具有增强阻燃能力的纤维纤维素材料.
研究的目的:
- 开发一种阻燃性纤维素气凝,具有热敏报警功能,用于早期火灾检测.
- 为了提高火灾安全性和热电传感性质的基纤维素基材料.
主要方法:
- 通过真空浸旅游素颗粒和在现场聚合 pyrrole 制备纤维素气凝标本.
- 使用β-FeOOH支架用于聚烯的生长,以提高材料的性能.
- 通过热释放率,总热释放,限制氧指数和UL-94测试来评估火焰阻燃性.
- 通过Seebeck系数测量来评估热电性能.
主要成果:
- 与原始木材相比,开发的TPLA的热释放率 (69.43%) 和总热释放率 (72.60%) 显著降低.
- 限制氧气指数增加了20.48%,UL-94评级提高到V-0,表明出色的阻燃性.
- TPLA实现了Seebeck系数为23.88μV·K-1并且在火灾事件中产生了超过100mV的电位差异,证明了有效的火灾报警特性.
结论:
- 阻燃性纤维素气凝 (TPLA) 显示出特殊的阻燃性和有效的热电传感能力.
- TPLA是开发具有集成安全功能的先进智能消防报警系统的有希望的材料.
- 这项研究有助于开发更安全的建筑材料和早期火灾检测技术.
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