羧甲基纤维素
乙二醇
聚丙烯酰胺
纤维素
拉伤
材料科学
共价键
离子键合
化学工程
钠
化学
高分子化学
有机化学
离子
工程类
内科学
医学
作者
Ya Cheng,Xiuyan Ren,Guanghui Gao,Lijie Duan
标识
DOI:10.1016/j.carbpol.2019.115051
摘要
The gel-based sensor was extensively investigated due to the flexible and extensible properties. Here, a flexible, excellent mechanical (fracture energy of 5238 kJ/m3) and anti-freezing ionic conductive carboxymethyl cellulose-based organohydrogel sensor was prepared via Fe3+ cross-linked sodium carboxymethyl cellulose (CMC) as the first network and covalently cross-linked polyacrylamide as the second network in the co-solvents of water and ethylene glycol. Owing to the clipping transportation of Fe3+ in the water channels, the gel sensor had good sensitivity (GF = 1.4, 0˜30% strain) and fast strain-responsiveness (0.98 s) to monitor the subtle motions of human body. The CMC-based organohydrogel with high strain-sensitivity exhibited more potential applications of next-generation bioelectronic materials and devices.
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