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生物基环氧为可回收和高性能纤维增强复合材料.
Yunchao Jia1,2,3, Hongyu Li1, Tong Chen1
1School of Materials Science and Engineering, Henan University of Technology, 100 Lianhua St., Zhengzhou 450001, P. R. China.
ACS macro letters
|December 8, 2025
概括
这项研究引入了一种新的生物基环氧树脂,用于纤维增强聚合物复合材料 (FRPC). 开发的材料使纤维和树脂的完全回收和再利用成为可能,从而提高复合材料制造的可持续性.
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:
- 纤维增强聚合物复合材料 (FRPC) 在航空航天和汽车行业至关重要,因为它们的强度与重量比高.
- 传统的环氧树脂虽然具有高性能,但是石油衍生和热固化,导致可回收性问题和环境问题.
- 传统复合材料的不可回收性质阻碍了纤维回收,并延续了对化石燃料的依赖.
研究的目的:
- 为FRPC开发一种可持续的,生物基的环氧树脂.
- 为了使增强纤维和环氧基质的有效回收和再利用.
- 通过先进的树脂设计来证明复合材料中循环性的潜力.
主要方法:
- 一种生物基环氧树脂的合成,该树脂由l-酸和sorbitol多聚甘油乙烯的动态共价键相结合.
- 使用新型生物基环氧树脂和强化纤维 (碳和玄武岩) 制造FRPC.
- 开发一种基于溶液的工艺,用于回收钢筋纤维和环氧树脂.
主要成果:
- 生物基环氧树脂及其FRPCs的机械性能与传统的以石油为基础的系统相当或超过.
- 实现了钢筋纤维的完全回收,允许它们在新的FRPC中重新使用,而不会降低性能.
- 回收的树脂溶液直接适用于基于光固化的3D打印,这表明它具有多功能可回收性.
结论:
- 开发的生物基环氧树脂在FRPC应用中为以石油为基础的系统提供了一个可持续的替代方案.
- 动态共价化学促进了复合材料的循环经济方法,使材料回收和重复使用成为可能.
- 这一进步支持那些依赖高性能复合材料的行业的环保制造.
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