在热条件下的羊毛-亚麻混合复合材料的柔性行为多参数研究
Tsegaye Lemmi1, David Ranz2, Clara Luna Martin2
1Institute of Architecture of Textiles, Faculty of Material Technologies and Textile Design, Lodz University of Technology, 116 Zeromskiego Str., 90-924 Lodz, Poland.
Materials (Basel, Switzerland)
|July 30, 2025
概括
使用羊毛和亚麻的混合天然纤维复合材料显示了更好的热稳定性. 较高的羊毛含量在高温下增强了曲强度,支持了可持续的材料开发.
科学领域:
- 材料科学 材料科学 材料科学
- 复合材料 复合材料 复合材料
- 可持续工程 可持续工程
背景情况:
- 自然纤维增强复合材料 (NFRC) 是合成复合材料的可持续替代品,但往往缺乏热稳定性.
- 由于热降解,NFRC的高温应用受限.
- 混合化为增强NFRC特性提供了一个潜在的解决方案.
研究的目的:
- 研究亚麻和羊毛纤维的杂交,以提高天然纤维复合材料的热稳定性.
- 为了评估不同羊毛纤维含量对羊毛-亚麻混合复合材料在高温下的柔性性能的影响.
- 评估这些混合生物复合材料在结构应用中的潜力.
主要方法:
- 羊毛亚麻混合复合材料是通过树脂输注使用生物基环氧树脂制造的.
- 不同比例的羊毛和亚麻纤维被用于创建各种复合品.
- 在室温和高温 (60°C和120°C) 评估了柔性特性.
主要成果:
- 所有混合生物复合材料的柔性特性在120°C相比室温显著降低.
- 在120°C时,模减少了85-94%,强度减少了79-85%.
- 有较高羊毛含量 (3W) 的复合材料变体在60°C (15%更高) 和120°C (5%更高) 时表现出更高的屈曲强度.
结论:
- 将羊毛纤维纳入基于亚麻的复合材料可以提高热稳定性.
- 混合羊毛亚麻复合材料在高温下保持可接受的曲性能.
- 这些发现支持开发用于苛刻应用的先进可持续生物复合材料.
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