Transparent hydrogel with enhanced water retention capacity by introducing highly hydratable salt
By Yu Bai, Baohong Chen, Feng Xiang, Jinxiong Zhou, Hong Wang, Zhigang Suo. 2014
351 citations recorded by the source corpus.
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.
Subfields: Biomedical Engineering, Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/328696e511ae8f6c2dde3207ffc3559405074db7
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In Biomedical Engineering
- Christoph Keplinger
- Zhigang Suo
- Tongqing Lu
- Jingda Tang
- Shane K. Mitchell
- Xuanhe Zhao
- Jian Zhu
- Wei Hong
In Mechanical Engineering
Citations in the corpus
- Peano-HASEL actuators: Muscle-mimetic, electrohydraulic transducers that linearly contract on activation (2018, methodology): “These are laser cut from a polyacrylamide hydrogel swollen with an aqueous LiCl solution (37) and bonded to a thin polydimethylsiloxane (PDMS) substrate (38) for mechanical support.”
- Fatigue of double-network hydrogels (2017, background): “Dissolved humectants and elastomeric coatings can retard evaporation of water and enable the devices to be used in open air [20-23].”