在多层软电子中使用不可混合的动态聚合物进行自主调整和修复
Christopher B Cooper1, Samuel E Root1, Lukas Michalek1
1Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA.
Science (New York, N.Y.)
|June 1, 2023
概括
研究人员使用两种动态聚合物开发了自我修复的软电子. 这项创新允许在愈合过程中自主调整层,克服了先进机器人和电子应用的手动调整限制.
科学领域:
- 材料科学
- 机器人技术
- 聚合物化学
背景情况:
- 软电子设备可以模仿人体皮肤自动恢复.
- 目前使用单一动态聚合物的方法确保了粘附性,但需要手动对齐.
- 这种局限性阻碍了自愈设备的无集成和可扩展性.
研究的目的:
- 开发一种用于自愈软电子的新方法,使其能够自主调整层.
- 保持强大的层间粘附,同时允许损伤恢复和自我纠正.
- 创建具有增强功能和弹性的先进软电子和机器人设备.
主要方法:
- 使用两种不同的动态聚合物,具有不可混合的骨干,但具有相同的动态键.
- 在聚合物层之间设计了一个可调节,弱穿透和粘合的接口.
- 在多层聚合物薄膜中嵌入导电,介电和磁性颗粒.
主要成果:
- 通过共享的动态键,在不相似的聚合物骨干之间实现强大的层间粘附.
- 在治愈过程中证明了错误的聚合物薄膜的自主调整,由界面自由能量最小化驱动.
- 成功制造功能自愈装置,包括薄膜压力传感器,磁性组装软机器人和水下电路.
结论:
- 双动态聚合物方法克服了自愈软电子器件的手动调整瓶.
- 这种方法提供了一个可调节的接口,用于强大的附着性和自主损坏恢复.
- 制造的设备展示了弹性和适应性的软机器人和电子产品的潜力.
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