首页|基于聚乙烯醇/聚吡咯导电有机凝胶的合成及其在人体活动监测中的应用

基于聚乙烯醇/聚吡咯导电有机凝胶的合成及其在人体活动监测中的应用

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  • 国家科技期刊平台
  • NETL
  • NSTL
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针对传统水凝胶在力学性能和环境稳定性方面的不足,本研究制备了一种基于聚乙烯醇(PVA)和聚吡咯(PPy)的新型导电有机凝胶,通过引入二甲基亚砜(DMSO)作为溶剂,显著改善了凝胶的机械强度和耐久性.采用红外光谱、热重分析和扫描电子显微镜等表征手段,考察了材料的结构特征和热稳定性.实验结果表明,有机凝胶在8%(m/m)PVA浓度下表现出最优性能,其平均孔径为5.2 μm,导电率为0.65 S/cm.将PVA/PPy有机凝胶作为可穿戴应变传感器,展示了优良的灵敏度和响应性,能够精确检测关节和肌肉的运动,而且能捕捉脉搏跳动和声带振动等细微的生理信号.此凝胶在室温下放置48h后仍能保持稳定的传感性能,显示出良好的环境适应性和长期使用潜力.本研究制备的PVA/PPy有机凝胶材料为智能医疗、健康监测和人机交互等领域的相关研究工作提供了技术支持,具有广阔的应用前景.
Synthesis of Polyvinyl Alcohol/Polypyrrole Conductive Organogel and Its Application in Human Activity Monitoring
To address the shortcomings of traditional hydrogels in terms of mechanical performance and environmental stability,a new conductive organogel based on polyvinyl alcohol(PVA)and polypyrrole(PPy)was prepared in this study.By introducing dimethyl sulfoxide(DMSO)as a solvent,the mechanical strength and durability of the gel were significantly improved.Various characterization techniques,including infrared spectroscopy,thermogravimetric analysis,and scanning electron microscopy were used to characterize this conductive organogel.The experimental results showed that the prepared organogel exhibited optimal performance at PVA concentration level of 8%(m/m),with an average pore size of 5.2 μm and a conductivity of 0.65 S/cm.As a wearable strain sensor,the PVA/PPy organogel demonstrated excellent sensitivity and responsiveness,capable of precisely detecting joint and muscle movements as well as subtle physiological signals such as pulse and vocal cord vibrations.Notably,the gel maintained stable sensing performance even after 48 h at room temperature,showing outstanding environmental adaptability and long-term use potential.This innovative material design provided robust technical support for smart healthcare,health monitoring,and human-machine interaction,showing broad application prospects.

Conductive organogelPolyvinyl alcoholPolypyrroleWearable strain sensorEnvironmental stability

马星悦、张媛媛、孙福欣、张凌宇、马崇博

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东北师范大学化学学院,分析测试中心,多酸与网状材料化学教育部重点实验室,动力电池国家地方联合工程实验室,纳米生物传感分析吉林省高校重点实验室,长春 130024

导电有机凝胶 聚乙烯醇 聚吡咯 可穿戴应变传感器 环境稳定性

吉林省教育厅科学技术研究项目吉林省科技厅自然科学基金(联合基金项目)中央高校基本科研业务费专项资金项目东北师范大学分析测试中心科研项目Program of Analysis and Test Center,Northeast Normal University

JJKH20231296KJYDZJ202201-ZYTS3402412022ZD013JJKH20231296KJ

2024

10.19756/j.issn.0253-3820.241250

分析化学
中国化学会 中国科学院长春应用化学研究所

分析化学

CSTPCD北大核心
影响因子：1.423
ISSN：0253-3820
年,卷(期)：2024.52(7)
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