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可持续的基于木质素的高效阻燃环氧树脂具有出色的机械性能

Xiang Song¹, Hong-Bin Lv¹, Zhiming Jiang¹

¹Institute of Functional Textiles and Advanced Materials, National Engineering Research Center for Advanced Fire-Safety Materials D & A (Shandong), Qingdao Key Laboratory of Flame-Retardant Textile Materials, College of Textiles and Clothing, Qingdao University, Ningxia Road, 308, Qingdao 266071, China.

International journal of biological macromolecules

|October 21, 2024

概括

一种由素 (LA) 和聚酸盐 (APP) 制成的新型阻燃剂增强了环氧树脂 (EP) 的消防安全性和机械性能. 这种可持续的方法为天然聚合物素提供了高价值的利用.

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
可持续化学可持续化学

背景情况:

氨酸 (LA) 是一种丰富的天然芳香聚合物,在高价值利用方面存在挑战.
开发用于环氧树脂 (EP) 的有效阻燃剂对于提高材料安全至关重要.

研究的目的:

从木质素和聚酸盐 (APP) 合成一种可持续的阻燃剂.
评估用基于素的新型阻燃剂修改过的环氧树脂的阻燃性和机械性能.

主要方法:

通过联结合成一个-聚酸盐 (LA@APP) 复合物.
将LA@APP纳入环氧树脂 (EP) 中,以创建EP/LA@APP复合材料.
使用限制氧气指数 (LOI) 和UL-94测试来评估阻燃性.
通过测量热释放率 (HRR) 和烟雾产生率 (SPR) 来分析燃烧行为.
评估机械性能,包括拉伸,曲和冲击强度.

主要成果:

EP/LA@APP6 (6%重量负载) 获得了27.9%的LOI和UL-94 V0评级.
观察到峰值热释放率 (63.5%) 和峰值烟雾产量率 (51.3%) 的显著降低.
证实了LA@APP和EP之间的增强的形和改进的界面兼容性.
EP/LA@APP6的机械性能 (拉伸,曲,冲击强度) 超过了纯EP的性能.

结论:

LA@APP复合材料有效地作为环氧树脂的可持续阻燃剂发挥作用.
这种材料同时提高了消防安全和机械性能,证明了高价值的木质素利用率.
开发的阻燃剂在需要提高耐火性和结构完整性的应用中表现有前途.

关键词:

性木质素 (lignin) 是一种性木质素.消防安全消防安全机械性质机械性质

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