在现场可逆和强大的机械响应超长光聚氨弹性体的聚氨
Jinzheng Chen1, Faxu Lin1, Danman Guo2
1PCFM Lab, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, P. R. China.
Advanced materials (Deerfield Beach, Fla.)
|October 28, 2024
概括
本研究引入了一种基于合聚氨的新型可逆机械响应 (MR) 材料. 该材料表现出随应力而变化的超长光,可用于监控和加密.
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
- 发光的光度是非常的低.
背景情况:
- 机械响应 (MR) 材料正在引起人们的注意,但大多数材料缺乏可逆响应.
- 在先进的应用中,开发现场可逆MR材料至关重要.
研究的目的:
- 开发一种基于聚氨的新型材料,具有现场可逆的机械响应超长光.
- 探索合弹性体中可逆机械响应发光的潜在机制.
主要方法:
- 用三烯基基芳香二次胺 (TpNP和TpNPO) 合聚氨 (PU) 弹性体.
- 研究由聚合物链方向和发射器-聚合物相互作用调节的辐射和非辐射过渡的机械响应变化.
- 与应用压力相关联的超长光特性 (强度,量子产量,寿命).
主要成果:
- 证明了低值 (7.9 MPa) 的超长光的三倍机械增强.
- 在现场实现并快速可逆的机械响应光,具有出色的重复性 (>500循环).
- 呈现出强大而高度敏感的机械响应后光.
结论:
- 该研究提出了一种新的策略,用于使用结和聚合物链定向来创建可逆MR材料.
- 开发的材料显示出在微裂纹检测,损伤预测,四肢运动监测和信息加密方面的应用潜力显著.
- 这项工作为开发具有增强发光和可逆MR行为的先进超长光材料提供了洞察力.
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