基于导电聚合物水凝胶改性的3D打印柔性电感器研究

doi:10.3901/JME.260250

摘要/Abstract

摘要： 导电聚合物水凝胶因其兼顾导电性与生物相容性，被广泛应用于储能、柔性电子和生物电子学等领域。目前，大多数导电聚合物水凝胶的制备依赖于传统2D技术。例如，打印、铸造、平板印刷术等。其制造程序繁琐、成本高、3D实体结构分辨率低。这些局限性阻碍了聚合物水凝胶作为电子导体的应用与创新。为此，提出一种新型复合油墨，具有优异的适印性，用于计算机跨尺度挤出式墨水直写(Direct ink writing，DIW)。通过交联及酸后处理，将其转化为高性能的导电水凝胶。经过改性处理的3D打印水凝胶，具有62 S/m(凝胶状态)、311 S/m(干燥状态)的电导率及超过210%的应变。通过调节打印参数，以满足不同黏度墨水的打印需求，从而制造出具有拉伸性能及多层结构堆叠的水凝胶柔性电感器，用于无线电信号传输。此外，因其具有良好的生物相容性及分子结构稳定性，在可植入电子工程领域中，将展现其巨大的应用潜力。

关键词: 3D打印, 导电聚合物, 水凝胶, 柔性电感器, PEDOT:PSS

Abstract: Conductive polymer hydrogels are extensively utilized in energy storage, flexible electronics, and bioelectronics because of their inherent conductivity and biocompatibility. Currently, the production of most conductive polymer hydrogels relies on conventional two-dimensional (2D) technologies. This includes techniques such as printing, casting, and lithography. These manufacturing processes are cumbersome, expensive, and often yield low resolution in three-dimensional (3D) structures. These limitations impede the application and innovation of polymer hydrogels in electronic conduction. To address these challenges, we proposed a novel composite ink that demonstrates excellent printability for computer-controlled cross-scale extrusion ink direct writing (DIW). This ink was subsequently transformed into a high-performance conductive hydrogel through crosslinking and acid post-treatment. The modified 3D-printed hydrogel exhibits a conductivity of 62 S/m in the gel state and 311 S/m in the dry gel state, with a strain exceeding 210%. By optimizing the printing parameters to accommodate inks of varying viscosities, we created a hydrogel flexible inductor with tensile properties and a multi-layer structure designed for radio signal transmission. Furthermore, due to its excellent biocompatibility and stable molecular structure, this hydrogel holds significant potential for applications in implantable electronic engineering.

Key words: 3D printing, conducting polymer, hydrogel, flexible sensor, poly (3,4-ethylenedioxythiophene):polystyrene sulfonate

中图分类号:

TG156
TP212

刘佩儒, 魏发南, 姚立纲, 刘晓敏. 基于导电聚合物水凝胶改性的3D打印柔性电感器研究[J]. 机械工程学报, 2026, 62(5): 347-356.

LIU Peiru, WEI Fanan, YAO Ligang, LIU Xiaomin. Research of 3D Printed Flexible Inductor Based on Conductive Polymer Hydrogel Modified[J]. Journal of Mechanical Engineering, 2026, 62(5): 347-356.

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链接本文: http://www.cjmenet.com.cn/CN/10.3901/JME.260250

http://www.cjmenet.com.cn/CN/Y2026/V62/I5/347

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