相关实验视频
Updated: Sep 13, 2025

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Fabrication and Design of Wood-Based High-Performance Composites
Published on: November 9, 2019
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实力青/聚氨复合材料具有增强的机械强度,生物活性功能和优越的湿木粘合力
Maham Arif1, Avishek Mallick Choudhury2, Aleezay Anjum Ahmed1
1LUT University, School of Engineering Science , Department of Separation Science, Mukkulankatu 19, Lahti 15210, Finland.
Colloids and surfaces. B, Biointerfaces
|July 29, 2025
概括
这项研究引入了一种新型的生物基聚氨 (LPU) 复合树脂,该复合树脂使用了强力木质素和麻油. 在LPU表现出增强的机械强度,改善木材粘附性,以及有益的抗氧化和抗菌特性.
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
- 生物材料是一种生物材料.
背景情况:
- 传统的复合树脂依赖于石化添加剂,引发环境和健康问题.
- 越来越需要在聚合物复合膜和木材粘合剂中找到可持续的替代品.
研究的目的:
- 开发一种新型的生物基聚氨 (LPU) 复合树脂,使用强力素 (KL) 和麻油 (CO).
- 评估LPU的机械性能,生物含量,木材粘合性能和生物活性特性 (抗氧化和抗菌).
主要方法:
- 通过将聚乙烯二醇和酸与2,4-二烯二酸盐反应,合成LPU,其中包括KL和CO.
- 使用FTIR,WAXS,X-FESEM和SS-CP-MAS13C NMR进行表征.
- 对薄膜的抗拉强度和木材粘合剂的剪切强度的测试,以及对抗菌和抗氧化剂的测试.
主要成果:
- 与纯 PU (3.6 MPa) 相比,LPU 薄膜具有显著更高的抗拉强度 (8.1 MPa).
- LPU木材粘合剂表现出改善的生物含量,优异的剪切强度,在潮湿条件下明显的木材故障.
- LPU复合树脂证明了氧化应激的缓解和抑制大肠杆菌和金黄色葡萄球菌的增殖.
结论:
- 开发的LPU复合树脂为以石化为基础的成分提供了一个可持续的替代品.
- 结合KL和CO可增强生物含量,机械强度和生物活性特性.
- 这种新型LPU为复合膜和木材粘合剂的应用提供了一个有前途的材料.
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