共晶体系
深共晶溶剂
材料科学
溶剂
导电体
纳米技术
化学工程
有机化学
复合材料
化学
工程类
合金
作者
Zhenkai Huang,Jin-Chao Xie,Tie Li,Liguo Xu,Peijiang Liu,Jianping Peng
出处
期刊:Polymers
[MDPI AG]
日期:2024-09-30
卷期号:16 (19): 2761-2761
标识
DOI:10.3390/polym16192761
摘要
Recently, eutectogels have emerged as ideal candidates for flexible wearable strain sensors. However, the development of eutectogels with robust mechanical strength, high stretchability, excellent transparency, and desirable conductivity remains a challenge. Herein, a covalently cross-linked eutectogel was prepared by exploiting the high solubility of oligoethylene glycol in a polymerizable deep eutectic solvent (DES) form of acrylic acid (AA) and choline chloride (ChCl). The resulting eutectogel exhibited high transparency (90%), robust mechanical strength (up to 1.5 MPa), high stretchability (up to 962%), and desirable ionic conductivity (up to 1.22 mS cm−1). The resistive strain sensor fabricated from the eutectogel exhibits desirable linear sensitivity (GF: 1.66), wide response range (1–200%), and reliable stability (over 1000 cycles), enabling accurate monitoring of human motions (fingers, wrists, and footsteps). We believe that our DES-based eutectogel has great potential for applications in wearable strain sensors with high sensitivity and reliability.
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