自愈水凝胶
乙二醇
材料科学
胶粘剂
溶剂
化学工程
聚乙烯醇
耐久性
PEG比率
复合材料
电导率
高分子化学
有机化学
化学
图层(电子)
工程类
物理化学
经济
财务
作者
Yunxuan Wu,Jie Li,Yangfu Jin,Mi Zhou
出处
期刊:Journal of Polymer Engineering
[De Gruyter]
日期:2020-01-24
卷期号:40 (3): 221-230
被引量:1
标识
DOI:10.1515/polyeng-2019-0304
摘要
Abstract Conductive hydrogels without adhesiveness and durability characteristics face great challenges in practical applications, such as inconvenient use, unstable contact voltage, and difficult to store. Herein, we present sodium polyacrylate (PAANa) hydrogels with binary solvent systems composed of water and an alcohol [ethylene glycol (EG), glycerol (GLY), or poly(ethylene glycol) (PEG)] as solvent instead of traditional water to research their self-adhesiveness, durability, conductivity, and mechanical properties. PAANa hydrogels exhibited higher self-adhesive properties and durability after alcohol content increased, and GLY/water hydrogels showed the best self-adhesive and stable properties. With more alcohols added, the weaker conductivity became, and EG/water hydrogels showed the highest conductivity. It was observed the long carbon chain length of alcohol could help improve the rheological properties of hydrogels. Thus, PEG/water hydrogels had the highest storage modulus, loss modulus, and consistency. The results demonstrated that the GLY/water binary solvent could provide good self-adhesiveness and durability, but EG/water and PEG/water showed better conductivity and mechanical properties, respectively. Therefore, our work may provide novel physical insights into the long-term usage of self-adhesive conductive hydrogels to practical requirements.
科研通智能强力驱动
Strongly Powered by AbleSci AI