碳纤维复合材料微波热解回收和再利用性能的研究
Xuan Li1, Lei Xu1,2,3, Yiyao Ren1
1Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China.
Polymers
|May 25, 2024
概括
从复合废物中回收的碳纤维可以重复使用,以创建新材料. 虽然机械性能略有下降,但这种回收方法节约了资源并减少了对环境的影响.
科学领域:
- 材料科学 材料科学 材料科学
- 复合材料工程 复合材料工程
- 环境科学 环境科学
背景情况:
- 碳纤维增强复合材料被广泛使用,但产生大量的废物.
- 这些复合材料的废物导致资源枯竭和环境问题.
- 回收碳纤维对于可持续的资源管理和环境保护至关重要.
研究的目的:
- 研究使用回收碳纤维生产复合材料的可行性.
- 为了减轻复合废物的环境影响,并优化资源利用.
- 分析用回收碳纤维制成的复合材料的性能.
主要方法:
- 碳纤维回收通过微波热解氧化.
- 将回收的碳纤维切成更短的长度.
- 使用环氧树脂和再生碳纤维制造复合板.
- 机械测试 (冲击,拉力,曲) 和表面分析 (SEM,XPS,红外,拉曼,接触角度).
主要成果:
- 恢复碳纤维表面形态的最小变化.
- 在回收碳纤维表面上增加含氧功能组.
- 碳纤维和环氧粘剂之间的接触角度降低.
- 用回收碳纤维制成的复合材料的机械性能降低 (冲击强度 -24.14%,拉伸强度 -15.94%,曲强度 -8.24%).
结论:
- 回收的碳纤维可以有效地用于新型复合材料.
- 微波热解氧化过程是碳纤维回收的可行方法.
- 虽然机械性能略有降低,但碳纤维的可重复使用性支持全面的资源利用和环境可持续性.
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