Transparent hydrogel with enhanced water retention capacity by introducing highly hydratable salt | Zendy

Yuanyuan Bai | Zendy; Baohong Chen | Zendy; Feng Xiang | Zendy; Jinxiong Zhou | Zendy; Hong Wang | Zendy; Zhigang Suo | Zendy

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Transparent hydrogel with enhanced water retention capacity by introducing highly hydratable salt

Author(s) -

Yuanyuan Bai,

Baohong Chen,

Feng Xiang,

Jinxiong Zhou,

Hong Wang,

Zhigang Suo

Publication year - 2014

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.4898189

Subject(s) - self healing hydrogels , polyacrylamide , water retention , electrolyte , chemical engineering , evaporation , relative humidity , salt (chemistry) , materials science , chemistry , electrode , polymer chemistry , organic chemistry , soil water , environmental science , physics , soil science , engineering , thermodynamics

Polyacrylamide hydrogels containing salt as electrolyte have been used as highly stretchable transparent electrodes in flexible electronics, but those hydrogels are easy to dry out due to water evaporation. Targeted, we try to enhance water retention capacity of polyacrylamide hydrogel by introducing highly hydratable salts into the hydrogel. These hydrogels show enhanced water retention capacity in different level. Specially, polyacrylamide hydrogel containing high content of lithium chloride can retain over 70% of its initial water even in environment with relative humidity of only 10% RH. The excellent water retention capacities of these hydrogels will make more applications of hydrogels become possible.

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