期刊
CELLULOSE
卷 29, 期 10, 页码 5725-5743出版社
SPRINGER
DOI: 10.1007/s10570-022-04622-6
关键词
Strain sensors; Self-healing; Hydrogel; Natural polymer; Electronic skin
资金
- Nanjing Forestry University Metasequoia talent research start-up fund [163101071]
This study adjusts the performance of hydrogel sensors by using different concentrations of hydroxyethyl cellulose and iron (III), resulting in strong mechanical strength, self-healing efficiency, high conductivity, and outstanding resistance stability at room temperature.
Self-healing hydrogels that mimic human skin and have numerous senses of external tension and temperature are a current topic in science. However, getting skin-compatible performance out of them is still a challenge, which limits their use as skin-like devices. In the current work, various concentrations of hydroxyethyl cellulose (HEC) and iron (III) were used to adjust the mechanical strength, self-healing, and electrically conductive efficiency of the hydrogel sensor at room temperature. The designed hydrogel exhibited robust mechanical strength with a fracture stress of 0.51 MPa, a fracturing strain of 1250%. The hydrogel also showed self-healing efficiency in stress (97%), strain (99%), and toughness (94%) in a 24 h healing time at room temperature without any external intervention. The hydrogel showed about 2.22 x 10(-1) S m(-1) electrical conductivity at room temperature. In the holding-loading stepwise test, the hydrogel displayed stair-like trends and maintained a specific strain for a long time without any change in the Delta R/R-0 %, indicating outstanding resistance stability as a function of distinct stains.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据