Paper
Transparent hydrogel with enhanced water retention capacity by introducing highly hydratable salt
Published Oct 14, 2014 · Feng Xiang, Baohong Chen, Hong Wang
Applied Physics Letters
321
Citations
4
Influential Citations
Abstract
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.
Introducing highly hydratable salts into polyacrylamide hydrogels enhances their water retention capacity, making them suitable for flexible electronics applications.
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