High-Performance Conductive Elastomers Based on Deep Eutectic Solvents and Polyvinyl Alcohol for Flexible Monitoring Sensors

IF 5.3 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Advanced Electronic Materials Pub Date : 2025-05-04 DOI:10.1002/aelm.202400937

Pinwen Wang, Shouhua Han, Zhipeng Hou, Sihang Ren, Muxin Zhao, Liqun Yang

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Abstract

The rapid advancement of wearable technology has led to the growing significance of flexible sensors in medical health monitoring and motion tracking. Traditional electronic skin frequently experiences unstable sensing performance attributed to inadequate interface compatibility and uneven distribution of conductive materials. Ionic skin presents an innovative method for acquiring biological signals via ion migration; however, its biocompatibility concerns restrict its broader use. This study introduces an eco-friendly and efficient synthetic method for the preparation of conductive elastomers utilizing deep eutectic solvents (DES) and polyvinyl alcohol (PVA). The resulting composite polymer network structure demonstrates a balance between elevated mechanical strength and high conductivity. The resultant material exhibits an electrical conductivity of 4.4 × 10⁻¹ S m⁻¹ and a tensile strain of 1200%. The attributes of this elastomer allow pressure sensors to demonstrate exceptional performance, featuring a sensitivity of 0.21 kPa⁻¹ and a wide detection range of 0–200 kPa. This research presents a novel approach for the development of high-performance flexible sensing materials, which hold considerable application potential in areas including healthcare and motion detection.

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基于深共晶溶剂和聚乙烯醇的柔性监测传感器用高性能导电弹性体

可穿戴技术的快速发展使得柔性传感器在医疗健康监测和运动跟踪方面的意义越来越大。传统电子皮肤由于界面兼容性不足、导电材料分布不均匀等原因，传感性能往往不稳定。离子皮肤提出了一种通过离子迁移获取生物信号的创新方法；然而，其生物相容性问题限制了其广泛使用。介绍了一种利用深共晶溶剂（DES）和聚乙烯醇（PVA）制备导电弹性体的环保高效合成方法。由此产生的复合聚合物网络结构在提高机械强度和高导电性之间取得了平衡。所得材料的电导率为4.4 × 10⁻¹S m⁻¹，拉伸应变为1200%。这种弹性体的特性使压力传感器表现出卓越的性能，其灵敏度为0.21 kPa⁻¹，检测范围为0-200 kPa。该研究为开发高性能柔性传感材料提供了一种新方法，在医疗保健和运动检测等领域具有相当大的应用潜力。

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来源期刊

Advanced Electronic Materials NANOSCIENCE & NANOTECHNOLOGYMATERIALS SCIE-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

11.00

自引率

3.20%

发文量

433

期刊介绍： Advanced Electronic Materials is an interdisciplinary forum for peer-reviewed, high-quality, high-impact research in the fields of materials science, physics, and engineering of electronic and magnetic materials. It includes research on physics and physical properties of electronic and magnetic materials, spintronics, electronics, device physics and engineering, micro- and nano-electromechanical systems, and organic electronics, in addition to fundamental research.