强大的,可回收的,生物基玻璃由定制的刚性-柔性结构为先进的碳纤维增强聚合物
Yong Guo1, Nannan Song2, Siqi Huo1,3
1Centre for Future Materials, University of Southern Queensland, Springfield, 4300, Australia.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|October 24, 2025
概括
这项研究引入了一种新的生物基环氧树脂 (F9T1),可以提高碳纤维增强聚合物 (CFRPs) 的性能和可回收性. 这种可持续材料具有卓越的阻燃性和机械性能,可以完全回收碳纤维.
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
- 可持续工程 可持续工程
背景情况:
- 传统的碳纤维增强聚合物 (CFRP) 使用具有不可逆转交联网络的以石油为基础的环氧树脂,这给可持续发展带来了挑战.
- 对不可再生资源的依赖和回收的困难限制了传统CFRP的环境兼容性.
研究的目的:
- 开发一种生物基,高性能,可回收的环氧树脂系统,用于先进的CFRP应用.
- 通过结合动态共价化学和生物衍生单体来解决传统环氧树脂的局限性.
- 创建可持续的耐热树脂,增强阻燃性和机械性能.
主要方法:
- 通过整合刚性 (DGEFA) 和柔性 (DGETA) 生物衍生环氧单体,合成了一种新的生物基环氧树脂 (F9T1).
- 在柔性单体中加入动态二硫化物组,使其具有可降解性和可回收性.
- 评估了F9T1环氧系统及其CFRP复合材料的阻燃性,烟雾抑制和机械性能.
主要成果:
- F9T1环氧树脂由于其芳香结构和二硫化物组而表现出优异的焦炭形成能力,阻燃性和烟雾抑制.
- 与商业环氧系统 (DGEBA) 相比,F9T1在拉伸强度 (56.1%),破裂延伸 (19.2%) 和屈曲强度 (28.9%) 中显著改善.
- 使用F9T1制造的可回收CFRP显示出增强的阻燃和机械性能,完全回收碳纤维.
结论:
- 开发的生物基F9T1环氧树脂为高性能CFRP提供了一个可持续的替代品.
- 结合动态共价键的刚性-灵活网络设计是下一代可回收可热固化材料的有希望的策略.
- 这项研究为环境友好和机械坚固的复合材料铺平了道路,改善了寿命终止的选择.
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