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Electrically Conductive Tough Gelatin Hydrogel
Author(s) -
Liu Chunlin,
Zhang Hui Jie,
You Xiangyu,
Cui Kunpeng,
Wang Xuechuan
Publication year - 2020
Publication title -
advanced electronic materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.25
H-Index - 56
ISSN - 2199-160X
DOI - 10.1002/aelm.202000040
Subject(s) - gelatin , materials science , self healing hydrogels , electrical conductor , ionic conductivity , salt (chemistry) , conductivity , ionic bonding , composite material , mechanical strength , chemical engineering , electrical resistivity and conductivity , ionic strength , ion , electrolyte , polymer chemistry , electrode , aqueous solution , organic chemistry , electrical engineering , chemistry , engineering
Hydrogels for electronic applications require stretchability, high electrical conductivity, and high mechanical strength. A mechanically robust ionic conductive gelatin hydrogel is constructed by a simple soaking–heating process in an ammonium sulfate solution. Due to the combined effect of the salt‐out effect and heating, a gelatin hydrogel with large chain‐dense and ion‐rich regions is successfully constructed. This gel exhibits high ionic conductivity and high mechanical strength.