Rapid Preparation of Carboxymethyl Cellulose Conductive Hydrogel at Room Temperature and Its Application in Flexible Strain Sensors

被引：0

作者：

Song Y. ^{[1
]}

Niu L. ^{[1
]}

Ma P. ^{[1
]}

Li X. ^{[1
]}

Feng J. ^{[2
]}

Liu Z. ^{[1
]}

机构：

[1] Materials Science and Engineering College, Northeast Forestry University, Harbin

[2] AEMG Academy, Vic

来源：

Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | 2023年 / 39卷 / 01期

关键词：

carboxymethylcellulose; conductive hydrogel; flexible strain sensors; preparation at room temperature; sodium lignosulfonate/Fe[!sup]3 +[!/sup;

D O I：

10.16865/j.cnki.1000-7555.2023.0024

中图分类号：

学科分类号：

摘要：

Conductive hydrogels have shown great promise in the field of flexible strain sensor field due to their unique features of sufficient flexibility, durability, and functional diversification. However, time- and energy-consuming polymerization process and toxic crosslinker are required to prepare hydrogels, which will severely impede their practical applications in such an emerging field. By using a new dynamic redox system composed of sodium lignosulfonate/Fe3+, using carboxymethyl cellulose and acrylic acid as basic raw materials, the CMC/PAA/Fe3+ conductive hydrogel with good mechanical properties (435 kPa ，1043%), high ionic conductivity (2.23 S/m), good sensing sensitivity (GF=2.76) and electrical self- healing was rapidly prepared at room temperature. The gel- based strain sensor can detect large and subtle human movements through stable and repeatable electrical signals, indicating its potential applications in personal health monitoring, human motion detection and human- computer interaction. Meanwhile, the rapid preparation of hydrogels at room temperature in this study provides a new idea for the construction of conductive hydrogels for various sensing applications. © 2023 Chengdu University of Science and Technology. All rights reserved.

引用

页码：134 / 144

页数：10

共 15 条

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