以布普雷斯蒂变形为灵感,用于形状颜色集成记忆和信息加密的强化光子弹性体
Tianqi Ren1, Xuanzhe Shen1, Zhibo Huang1
1Key Laboratory of Carbon Fibers and Functional Polymers, Ministry of Education; College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, China.
Nature communications
|December 26, 2025
概括
带有长侧链的奇拉尔液晶弹性体表现出增强的机械性能和形状记忆效应. 这种自我增强的材料允许可编程,可回收的彩色形状和加密的信息存储.
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
- 纳米技术 纳米技术
背景情况:
- 形状记忆聚合物提供多功能性和可回收性,但由于复杂的编程和不变性质而面临挑战.
- 状液晶弹性体 (CLCE) 是聚合物光子晶体,在智能设备中具有潜在的应用.
研究的目的:
- 增强CLCE的相位过渡趋势和自我增强能力.
- 在以自然过程为灵感的CLCE中引入形状-颜色集成记忆效应.
- 为了使可编程,可回收和加密的信息存储在CLCE中.
主要方法:
- 在CLCE中引入线性长侧链,以修改其结构.
- 使用有序结构 (smectic,晶体) 和合性阴性 (N*) 阶段之间的微相分离.
- 在室温下研究机械性质的自我增强 (斯模量,应变能量密度).
- 通过加热和循环利用来证明形状-颜色记忆效果的恢复.
主要成果:
- 在48小时内,Young模量 (1854%) 和应变能量密度 (1533%) 显著增加.
- 实现了形状-颜色集成记忆效果,在加热后完全可恢复.
- 成功地循环利用CLCE膜来编程彩色形状和高保真纹理.
- 证明了微相分离的局部调节,用于加密信息的编写和回收.
结论:
- 经过修改的CLCE表现出了显著的自我增强和形状颜色记忆能力.
- 材料的特性可以为各种应用程序编程,包括数据存储和智能设备.
- 这种方法为开发先进的可回收和多功能聚合物材料提供了途径.
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