大学化学 >> 2024, Vol. 39 >> Issue (4): 286-295.doi: 10.3866/PKU.DXHX202309094

化学实验 上一篇    下一篇

导电水凝胶基柔性电子传感系统——柔性电子创新实验设计

王腾蛟1, 程天1, 刘荣珺1, 王泽一2, 乔宇轩2, 王安1, 李鹏1   

  1. 1 西北工业大学柔性电子研究院, 西安 710129;
    2 西北工业大学教育实验学院, 西安 710129
  • 收稿日期:2023-09-25 修回日期:2023-11-01 发布日期:2023-11-06
  • 通讯作者: 王腾蛟, 李鹏 E-mail:iamtjwang@nwpu.edu.cn;iampli@nwpu.edu.cn
  • 基金资助:
    西北工业大学2023年度教育教学改革研究项目(2023JGY58)；西北工业大学2023年度课程建设项目(KCJS23ZP098,KCJS23WT27)；西北工业大学2023年度研究生培养质量提升项目

Conductive Hydrogel-based Flexible Electronic System: Innovative Experimental Design in Flexible Electronics

Tengjiao Wang1, Tian Cheng1, Rongjun Liu1, Zeyi Wang2, Yuxuan Qiao2, An Wang1, Peng Li1   

  1. 1 Institute of Flexible Electronics, Northwestern Polytechnical University, Xi’an 710129, China;
    2 Honors College, Northwestern Polytechnical University, Xi’an 710129, China
  • Received:2023-09-25 Revised:2023-11-01 Published:2023-11-06

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摘要： 导电水凝胶兼具生物医用材料和导电材料特征，可应用于医疗康复、运动监测和人机交互等领域。为提高柔性电子学专业本科生的创新意识与实验技能，本实验设计了一种纳米凝胶材料交联的导电水凝胶，通过探索加聚型水凝胶聚合过程中引发剂浓度和交联机制，阐明材料结构组分对水凝胶基柔性电子器件使用耐久性能及传感性能的影响。通过创新实验设计，柔性电子学专业本科生可以学习到高分子乳液聚合、水凝胶制备以及应力应变传感性能表征等知识点，深入理解交联剂结构设计对材料功能性的影响。此外，本实验还设计了基于水凝胶柔性电子传感器的可穿戴传感系统，通过集成可控制小车移动的智能手套，以及用于控制电脑游戏的水凝胶控制器，将前沿科研与本科实验教学任务紧密结合，有利于激发柔性电子、材料、电子信息等专业本科生对于科研的兴趣和创新探索的科研精神。

关键词: 柔性电子, 乳液聚合, 导电水凝胶, 纳米凝胶, 柔性应变传感器

Abstract: Conductive hydrogels amalgamate characteristics of both biomedical materials and conductive materials, finding applications in medical rehabilitation, motion monitoring, and human-machine interaction among others. To enhance the innovative awareness and experimental skills of undergraduate students majoring in flexible electronics, this experiment designs a conductive hydrogel crosslinked by nanogel materials. By exploring the initiator concentration and cross-linking mechanisms during the polymerization of co-polymeric hydrogels, the impact of material structural components on the durability and sensing performance of hydrogel-based flexible electronic devices were elucidated. Through taking part in this novel experimental design, undergraduates majored in flexible electronics can acquire key points on polymer emulsion polymerization, hydrogel synthesis, stress-strain sensing property characterization, gaining a deeper understanding of the influence of cross-linking agent structural design on material functionality. Additionally, this experiment developed a hydrogel based flexible and wearable sensing system based on hydrogel flexible electronic sensors. By integrating a smart glove capable of controlling a small car’s movement and a hydrogel controller for computer game control, we tightly merge cutting-edge research with undergraduate experimental teaching tasks. This integration is beneficial in stimulating the research interest and innovative exploration spirit among undergraduates majoring in flexible electronics, materials, and electronic information.

Key words: Flexible electronics, Emulsion polymerization, Conductive hydrogel, Nanogel, Flexible strain sensor