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Fabrication and Design of Wood-Based High-Performance Composites
Published on: November 9, 2019
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通过增材制造加工用于建筑绝缘的木-PLA复合材料的热和机械行为
Anis Bahar1,2,3, Ameur El Amine Hamami3, Ferhat Benmahiddine3,4
1Department of Mechanical Engineering, IUT Nantes, Nantes Université, Oniris, CNRS, GEPEA, UMR 6144, F-44000 Nantes, France.
Polymers
|July 29, 2023
概括
这项研究探讨了用于建筑绝缘的3D打印木质-PLA复合材料. 虽然观察到可调节的热性能,但性能落后于像玻璃羊毛这样的传统材料.
科学领域:
- 材料科学 材料科学 材料科学
- 可持续建筑材料 可持续建筑材料
- 增材制造 增材制造 增材制造
背景情况:
- 基于木材的复合材料为可持续的建筑材料提供了潜力.
- 增材制造 (AM) 能够实现复杂的几何形状和定制的材料特性.
- 对建筑行业来说,评估AM加工的木材复合材料用于隔热至关重要.
研究的目的:
- 通过化丝制造 (FFF) 制造的木质复合材料的热和机械性能.
- 评估加工参数,特别是打印温度和填充率对材料性能的影响.
- 为了比较3D打印木质PLA与传统建筑绝缘材料的绝缘能力.
主要方法:
- 使用原料材料包括多乳酸 (PLA) 混合物和30%的木质颗粒.
- 合金丝技术用于3D打印木质-PLA复合材料.
- 在不同的印刷条件下,系统地描述了热和机械性能.
主要成果:
- 3D打印过程导致拉伸性能略有降低.
- 印刷温度对刚度的影响微不足道,对抗拉强度和最终应力的影响有限.
- 热性能受到充填速率的显著影响,表明可调节性.
- 尽管具有良好的热性能,但木质-PLA复合材料的效果比玻璃羊毛或合成泡低38%至57%.
结论:
- 3D打印的木质-PLA复合材料显示出在建筑中作为可调节的隔热器的潜力.
- 处理参数,特别是充填率,是优化热性能的关键.
- 需要进一步开发以提高绝缘效率,以适应传统材料的广泛建筑应用.
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