装甲的聚合物-流体凝具有集成的缓冲和冲击保护在广泛的温度
Guoqing Chen1, Jiabin Wu1, Zhenwu Wang1
1School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Shenzhen 518172, P. R. China.
Science advances
|April 9, 2025
概括
新的装甲聚合物流体凝 (APFGs) 在广泛的温度范围内提供卓越的振动阻尼和冲击保护. 这一突破解决了对先进材料应用的阻尼和机械强度之间的权衡.
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
- 机械工程 机械工程
背景情况:
- 振动和冲击对设备,结构和人类构成风险.
- 现有的缓冲材料由于缓冲模块的权衡而面临限制.
- 在广泛的温度范围内,存在对具有高能耗和机械强度的材料的需求.
研究的目的:
- 开发先进的材料,在极端条件下提供有效的阻尼和冲击保护.
- 为了克服传统阻尼材料的局限性.
- 引入装甲聚合物流体凝 (APFGs),具有高阻尼和高模量.
主要方法:
- 使用通过扩散的受控表面交叉连接过程制造APFGs.
- 不对称的设计以提高机械强度而不会损害缩.
- 缓冲性能 (损失因子) 和机械性能 (拉伸模量) 的表征.
主要成果:
- 实现了前所未有的损耗系数 (tanδ>0.5从-45°C到135°C,达到2.2的峰值).
- 获得了20 MPa的高拉伸模量.
- 证明了缓冲模块权衡的解决方案.
结论:
- 在广泛的温度范围内,APFGs提供强大的减压和冲击保护.
- 开发的制造方法成功地提高了机械强度,同时保持了出色的阻尼.
- 在敏感电子产品和人类运动保护领域,APFG具有很大的应用潜力.
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