生物模拟渐进螺旋结构用于增强纤维增强复合材料的强度和性
Zhengqi Zhang1, Boyu Cui1, Yanan Sun2
1Key Laboratory of Bio-based Material Science and Technology (Ministry of Education), Northeast Forestry University, Harbin, 150040, P. R. China.
Advanced materials (Deerfield Beach, Fla.)
|April 29, 2025
概括
研究人员开发了一种逐渐螺旋 (GH) 结构,模仿自然设计以加强热塑性塑料. 这种使用竹纤维的仿生复合材料显示出增强的强度和性.
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:
- 自然结构通常具有多层螺旋结构,以获得更高的强度和性.
- 在合成材料中复制这些复杂的自然结构带来了重大挑战.
研究的目的:
- 为生物模拟结构创建过渡单元提出一个绿色,简单和多功能战略.
- 开发一种渐进的螺旋结构 (GH) 用于用竹纤维强化热塑料.
主要方法:
- 设计了一个新的过渡单元,使用了和扭曲技术的组合.
- 一种渐进的螺旋结构 (GH) 复合材料是通过热压在热塑性基质中的竹纤维制成的.
- GH结构具有3D螺旋纤维,从表面到核心的螺旋角度有梯度.
主要成果:
- GH结构表现出最小的分层角度和纤维层之间的有效桥梁.
- 由于应力分解,转移和螺旋纤维合,可以实现出色的拉伸和曲强度.
- 观察到显著的冲击性,归因于分阶排列,桥梁和纤维脱线,导致裂偏移.
结论:
- 拟议的过渡单元和GH结构组装策略提供了一个环保,简单和多功能的方法.
- 这种方法有助于开发具有显著改善机械性能的先进复合材料.
- 仿生GH结构为创造受大自然启发的高性能材料提供了希望.
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