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Ionic Liquid/Water Binary Solvent Hydrogel for Flexible Strain Sensor

delete2025-09-17
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PRE
AI
X
Xiaoying Zhang
C
Chen Wang
J
Jingyu Niu
Y
Yuzhen Wang
W
Weiyu Wang
叶欣 封面图
叶欣 (Xin Ye) *
H
Hui Yang *
DOI:10.1007/s40242-025-5138-1delete
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摘要

摘要

En 中文
可穿戴电子技术,特别是柔性应变传感器,因其能够精确检测机械形变并将其转化为可测量的电信号,已发展成为关键技术,在健康监测和人机接口等领域展现出广阔应用前景。然而,这些传感器中常用的水凝胶因高含水量而受到限制,其在零下温度下会冻结,从而限制了在极端环境中的应用。本研究通过开发一种基于离子液体([EMIM][BF4])与水构成的二元溶剂体系、同时加入两性离子聚合物和导电PEDOT:PSS的防冻、可拉伸且具有粘附性的水凝胶,解决了这一局限性。该水凝胶的制备采用了一步法工艺。离子液体的引入显著提升了水凝胶的防冻性能、机械柔韧性、电导率及粘附性。综合评估表明,该水凝胶展现出优异的机械稳定性、高导电性以及宽温度范围内的可靠应变传感性能。人体关节的演示实验进一步证实了其在低温环境下适用于柔性可穿戴传感器的实际应用潜力。
Keyword:
Hydrogel
Ionic liquid
Anti-freezing
Flexible strain sensor

期刊

Chemical Research in Chinese Universities 封面图
Chemical Research in Chinese Universities
IF:
3
论文数:
3.0K
被引数:
2.8K

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