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一种含和双键结构的多元素阻燃剂,用于增强环氧树脂的机械性能和阻燃性
Penglun Zheng1,2,3, Haihan Zhao4,5,6, Junwei Li4,5,6
1College of Civil Aviation Safety Engineering, Civil Aviation Flight University of China, Guanghan, 618307, People's Republic of China. zhengpenglun@cafuc.edu.cn.
Scientific reports
|April 7, 2024
概括
一种新型的多元件阻燃剂 (DOPO-KhCPA-5) 显著提高了环氧树脂 (EP) 的性能. 这种添加剂提高了阻燃性,达到UL-94 V-0,并提高了机械强度,为高性能EP应用提供了潜力.
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
- 阻燃性是指阻燃性是指阻燃性.
背景情况:
- 环氧树脂 (EP) 广泛使用,但通常需要提高阻燃性和机械性能,以满足苛刻的应用.
- 开发有效的不损害材料完整性的阻燃剂是聚合物科学的一个关键挑战.
研究的目的:
- 合成和评估一种具有双键结构的多元素协同阻燃剂,用于环氧树脂复合材料.
- 为了研究这种阻燃剂对环氧树脂阻燃性和机械性能的影响.
主要方法:
- 合成一种多元素协同阻燃剂 (DOPO-KhCPA-5),其中包含双键结构.
- 将阻燃剂添加到环氧树脂中,以制造复合材料.
- 使用限制氧气指数 (LOI) 和UL-94测试来评估阻燃性.
- 通过测量峰值热释放率 (PHRR) 和总热释放率 (THR) 来评估热性质.
- 机械性能测试,包括拉力强度和拉力模量.
主要成果:
- 该DOPO-KhCPA-5复合物 (5重量%) 实现了32%的LOI,并满足UL-94 V-0等级.
- 与纯EP相比,观察到PHRR (48.7%) 和THR (7.2%) 的显著降低.
- 拉力强度增加了38.5%,拉力模量增加了57.9%,这是由于相互透网络的形成.
- 通过冷凝和气相机制实现了协同的阻燃性.
结论:
- 合成的多元件阻燃剂 (DOPO-KhCPA-5) 有效地提高了环氧树脂的阻燃性和机械性能.
- 双键结构有助于产生协同作用的阻燃效应,并通过交叉连接提高机械性能.
- 这种阻燃剂显示出开发高性能环氧树脂复合材料的巨大潜力.
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