在现场,用于高性能竹复合材料的粘性
Taotao Meng1, Yu Ding1, Yu Liu1
1Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States.
Nano letters
|September 7, 2023
概括
研究人员开发了一种新的生物粘合方法,使用现场素结合来制造强大的竹复合材料. 这种可持续的方法避免了有害的粘合剂,为结构材料提供了一个有希望的替代品.
科学领域:
- 材料科学 材料科学 材料科学
- 生物材料工程 生物材料工程
- 可持续化学 可持续化学
背景情况:
- 竹复合材料是有前途的结构材料,但受到粘合剂选择的限制.
- 石油衍生粘合剂带来环境风险,而生物基选择往往缺乏足够的粘合强度.
研究的目的:
- 开发一种新的,可扩展的,高性能的竹复合材料,采用可持续的生物粘合战略.
- 为了利用 in situ 素结合,增强纤维素纤维网络的形成.
主要方法:
- 开发了一种新的生物粘附策略,采用了 in situ 素结合.
- 自然的竹子被加工成一个复合材料,通过键和纳米级纠的素和纤维素纤维形成一个强大的粘合界面.
主要成果:
- 在现场粘合的竹 (glubam) 复合材料实现了约4.4MPa的创纪录的高切割强度.
- 复合材料显示出大约300MPa的高抗拉强度.
- 素粘附策略被证明是简单,可扩展和具有成本效益的.
结论:
- 在现场的素结合策略为制造强大,可持续的竹复合材料提供了一个有前途的途径.
- 这种方法减少了对石化基粘合剂的依赖,并促进了碳捕获.
- 开发的粘合板复合材料为建筑,汽车和物流行业的结构应用提供了可行的替代方案.
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