Anti-dryable, anti-freezable, and self-healable conductive hydrogel for adhesive electrodes
- Authors
- Seo, Jungyoon; Oh, Seungtaek; Choi, Giheon; Lee, Hwa Sung
- Issue Date
- Dec-2022
- Publisher
- Taylor & Francis
- Keywords
- Self-healing hydrogel; anti-dryable; anti-freezable; conductive hydrogel; adhesive electrode
- Citation
- Composite Interfaces, v.29, no.13, pp 1 - 12
- Pages
- 12
- Indexed
- SCIE
SCOPUS
- Journal Title
- Composite Interfaces
- Volume
- 29
- Number
- 13
- Start Page
- 1
- End Page
- 12
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/110422
- DOI
- 10.1080/09276440.2022.2068246
- ISSN
- 0927-6440
1568-5543
- Abstract
- Poly(vinyl alcohol) (PVA)-based hydrogels are widely used in devices requiring self-healing abilities. However, these hydrogels consist largely of water; thus, moisture evaporates easily, and the hydrogels cannot be used for a long time. In this study, glycerol (Gly) and 1,2,3,4-butane tetracarboxylic acid were added to a PVA-based hydrogel to enhance its anti-freezing and anti-drying properties. Graphite was then added to provide conductivity. The prepared conductive hydrogel exhibited an excellent self-healing ability in terms of mechanical and electrical performance. With the introduction of Gly, the adhesion of the hydrogel can be easily achieved, and a simple circuit configuration can be used as an adhesive electrode. The manufactured hydrogel has an excellent self-healing ability and conductivity, as well as excellent mechanical/electrical, anti-drying, and anti-freezing properties, making it suitable for the fabrication of next-generation sensors and wearable electronic devices.
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