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基于实验优化环氧和碳纤维增强环氧聚合物复合材料的防火性能设计

Christoph M Pöhler¹, Marwa Hamza², Torsten Kolb¹

¹Centre for Light and Environmentally-Friendly Structures, Fraunhofer Institute for Wood Research Wilhelm-Klauditz-Institut WKI, 38108 Braunschweig, Germany.

|October 28, 2023

概括

阻燃剂显著提高了环氧和碳纤维增强聚合物 (CFRP) 的防火性能. 聚酸盐 (APP) 和胺 (MEL) 的最佳混合物产生了最高的限制氧指数 (LOI) 和最低的热释放率.

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:

环氧和碳纤维增强聚合物 (CFRP) 复合材料广泛使用,但具有固有的易燃性.
阻燃剂 (FR) 对于提高聚合物复合材料的消防安全至关重要.
了解不同FR的协同效应对于优化复合材料的防火性能至关重要.

研究的目的:

为了研究环氧和CFRP复合材料与各种阻燃剂的防火性能.
通过实验设计 (DoE) 方法评估FRs的单一和多因素影响.
为了确定最佳的FR配方,以提高耐火性.

主要方法:

使用限制氧指数 (LOI) 测试和圆热量计来研究火灾性能.
应用了实验设计 (DoE) 方法来系统地研究FR效应.
经过测试的具有和没有FR的环氧和CFRP复合材料,包括聚酸盐 (APP),三氧化物 (ATH),胺 (MEL) 和可扩展石墨 (EG).

主要成果:

70重量%的环氧,24.6重量%的APP和5.4重量%的MEL混合物实现了最高的LOI (环氧为45,CFRP为39).
这种最佳混合物还显示出最低的平均热释放率 (HRR180s) 为104kW·m−2和1.14MJ·m−2·g−1.14的特定总热释放率 (THR600s).
观察到泡剂和烧焦剂之间的协同作用,突出显示了配方平衡的重要性.

结论:

作为阻燃剂的APP和MEL的组合显著提高了环氧和CFRP复合材料的防火性能.
在浸泡系统中平衡泡和烧焦剂对于实现优越的耐火性至关重要.
这些发现为开发先进的防火复合材料提供了宝贵的见解.

关键词:

碳纤维碳纤维的使用设计实验的设计.防火减速器的火灾减速器是什么?热固化树脂是一种热固化树脂.

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