封装MRG的MRE:模块可性和能量消耗的协同改进
1College of Artificial Intelligent, Chongqing University of Technology, Chongqing 400050, China.
Nanomaterials (Basel, Switzerland)
|July 12, 2025
概括
这项研究引入了带有嵌入MR凝的新型磁性弹性体 (MREs),显著提高模量可调性和能耗,用于先进的应用. 这些复合材料的性能优于传统的MRE.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 机械工程 机械工程
背景情况:
- 传统的磁修复性弹性体 (MREs) 在模量可调性和能量消散方面存在局限性.
- 这些局限性限制了传统MRE在苛刻的工程领域的应用范围.
研究的目的:
- 开发一种新的复合材料,MRE封装MR凝 (MRE-MRG),以克服传统MREs的局限性.
- 调查环形和辐射MRE-MRG配置的动态机械性能和磁石学特性.
- 评估MRE-MRG复合材料在高精度减震和振动隔离应用中的潜力.
主要方法:
- 使用3D打印模具制造环形和辐射MRE-MRG复合材料.
- 复合材料在不同磁场 (0-1 T) 下的动态机械分析,采用度仪.
- 磁诱导模量,磁铁学 (MR) 效应,能量消耗 (损失因子) 和动态响应时间的表征.
主要成果:
- 与传统的MREs相比,MRE-MRG复合材料显示显著增强了磁诱导模量和MR效应.
- 环形MRE-MRG配置显示MR效应增加了238.47%,磁诱导模量增强了51.35%.
- 这两种配置都表现出优越的能量消耗,损耗因子是纯MREs的2.68 (环形) 和2.03 (辐射) 倍.
- 在复合材料中观察到更快的响应时间,特别是环状MRE-MRG.
结论:
- 封装MR凝复合材料的MRE提供了关键性质的协同增强.
- 开发的复合材料在模量可调性,MR效应和能量消散方面显著改善.
- 这些先进的MRE-MRG复合材料对高精度减震系统,振动隔离和自适应控制的应用具有很大的前景.
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