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增强可再生碳纤维PLA丝材的效率,适用于增材制造
Loredana Tammaro1, Alfonso Martone2, Barbara Palmieri2
1Nanomaterials and Devices Laboratory, Department for Sustainability, Sustainability Materials Technology and Processes, ENEA, P.le E. Fermi, 1, 80055 Portici, Italy.
Polymers
|August 10, 2024
概括
这项研究表明,由再生碳纤维 (rCF) 和聚乳酸 (PLA) 制成的3D打印丝提供了增强的结构性能. 这些可持续的复合材料适用于增材制造应用.
科学领域:
- 材料科学 材料科学 材料科学
- 添加剂制造 添加剂制造 添加剂制造
- 可持续工程 可持续工程
背景情况:
- 3D打印使使用回收材料实现可持续制造.
- 可以利用二次原料来制造先进的复合纤维.
- 聚乳酸 (PLA) 是用于复合材料开发的常见生物塑料矩阵.
研究的目的:
- 为了研究由再生碳纤维 (rCF) 加固的PLA制成的3D打印复合纤维的结构性能.
- 分析rCF含量对热,机械和微观结构性质的影响.
- 评估这些复合材料是否适合用于增材制造.
主要方法:
- 循环碳纤维 (rCF) 是通过专利的热工艺从工业废料中回收的.
- 用PLA和rCF (3-20重量%) 制造热塑复合纤维,没有额外的处理.
- 分析了热性质 (TGA),机械性质 (斯模量,存储模量) 和微观结构 (SEM).
主要成果:
- 热分析证实了与理论负载一致的剩余rCF含量.
- 的模量显著增加到rCF的5重%以下,在更高度下,回报率下降.
- 在印刷样本中观察到储存模块增加了54%,其中rCF含量更高.
- SEM图像显示了沿挤出流程的rCF的单向对齐,表明有效的强化.
结论:
- 具有分散良好的rCF的均质复合纤维适用于增材制造.
- 回收碳纤维增强,即使没有添加剂,也提高了材料的性能.
- rCF的拓分布显著影响机械性能,孤立的纤维表现出高效的负载传输.
关键词:
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF添加剂制造 添加剂制造 添加剂制造复合材料 复合材料 是一种复合材料.机械性质 机械性质 机械性质多乳酸多乳酸是什么意思回收的碳纤维是回收的
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