生物灵感强大和坚固的分层批量复合材料通过菌界面定战略
Hao Wang1, Jurui Liu1, Zhangyu Wu2
1Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue Kowloon, Hong Kong, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|March 24, 2025
概括
研究人员开发了由nacre. inspired启发的新型生物模拟分层散装复合材料 (LBCs). 这些自我再生的LBC集成了先进的抗碰撞应用的结构和功能特性.
科学领域:
- 材料科学 材料科学 材料科学
- 生物模拟学是一种生物模拟学.
- 复合材料 复合材料 复合材料
背景情况:
- 轻质结构复合材料在汽车和航空航天行业至关重要.
- 整合结构性和功能性质,如力监测,仍然是一个挑战.
- 像和乌贝这样的自然材料,由于它们的多层结构,提供了灵感.
研究的目的:
- 开发具有增强结构和功能性质的新型生物模拟分层散装复合材料 (LBC).
- 通过使用接口定策略来模仿纳克尔的多层结构.
- 为了实现先进的复合材料的自我再生能力和可扩展的制造.
主要方法:
- 利用与真菌菌的接口定策略来整合硬相石墨烯纳米板 (GNs) 和软相聚合物矩阵 (PEG-PVA).
- 采用真菌生长模式,精确地放置GNs和聚合物矩阵的组装.
- 使用这种仿生方法制造的三维 (3D) 层叠散装复合材料 (LBC).
主要成果:
- 制造的LBC证明了自我再生能力和可扩展性.
- 实现了优异的机械性能:特定强度 (92.8 MPa g cm−3),断裂性 (6.5 MPa m−1/2),以及抗冲击能力 (∼3.1 kJ m−2).
- 在机械性能上表现优于天然和现有的仿生分层复合材料.
结论:
- 拟议的接口定策略有效地创造了高性能生物模拟复合材料.
- 开发出来的LBC表现出出色的机械性能和自我再生能力.
- 这些复合材料由于其保护性预警功能,在体育和航空航天领域的防撞应用中表现有前途.
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