自愈,可降解和生物基聚氨弹性体,用于具有形微结构的高性能压力传感器
Hongtao Zhu1, Die Dong1, Ye Wei1
1School of Materials Science and Engineering, Key Lab of Guangdong Province for High Property and Functional Polymer Materials, South China University of Technology, Guangzhou 510640, China.
Langmuir : the ACS journal of surfaces and colloids
|February 19, 2025
概括
本研究介绍了一种自愈,可降解的聚氨弹性体,用于先进的柔性压力传感器. 这种可持续材料可以延长传感器的寿命,减少电子废物,从而可靠地监测人类的运动.
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
- 传感器技术 传感器技术
背景情况:
- 电子皮肤和可穿戴设备中的灵活传感器面临着寿命有限和废弃单元对环境污染的挑战.
- 开发可持续材料对于先进电子元件的寿命和减少对环境的影响至关重要.
研究的目的:
- 为高性能柔性压力传感器开发一种自我愈合,可降解和生物基聚氨弹性体.
- 解决当前灵活传感器在耐用性和环境可持续性方面的局限性.
主要方法:
- 合成了使用脂肪二胺作为链延长剂的聚氨弹性体.
- 通过模板方法制造了一种灵活的压力传感器,使用弹性体和减少的氧化石墨烯与形微结构.
- 评估了弹性体的机械性能,自我愈合效率和可降解性. 评估传感器的性能,包括灵敏度,传感范围,响应/恢复时间和稳定性.
主要成果:
- 弹性体具有很高的抗拉强度 (13.25 MPa),破裂时的延长 (830%),以及自愈效率 (109.2%).
- 该材料在7天内完全降解在1mol L-1 NaOH与乙醇溶液中.
- 传感器表现出高灵敏度 (9.448 kPa-1),广泛的传感范围 (0-300 kPa),快速响应/恢复 (40/80 ms),以及出色的稳定性 (14,000 个周期).
- 传感器成功监测了各种人体运动,并在损坏后恢复功能.
结论:
- 开发的自愈,可降解和生物基聚氨弹性体为高性能灵活传感器提供了可持续的解决方案.
- 这项研究为功能弹性体和可穿戴电子设备的环保开发提供了可行的战略.
- 该材料的性能和证明的应用突出显示了其在下一代电子皮肤和可穿戴技术方面的潜力.
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