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- Title
High tensile poly(vinyl alcohol)/Carboxymethyl cellulose sodium/Polyacrylamide/Borax dual network hydrogel for lifting heavy weight and multi-functional sensors.
- Authors
Xu, Yizhe; Sun, Shuang; Maimaitiyiming, Xieraili
- Abstract
In recent years, flexible wearable devices have become one of the most popular research topics due to their good elasticity and high sensitivity. However, traditional flexible sensors have poor mechanical performance and fatigue resistance, leading to the sensor being easily damaged. In this work, a dual-network interpenetrating structure was designed by mixing polyvinyl alcohol (PVA) and polyacrylamide (PAM) to form hydrogen bonds, which greatly improved the mechanical properties of the flexible sensors. In addition, the addition of Carboxymethyl cellulose sodium (CMC) and borax can make the mechanical properties of double network polymer hydrogel stronger, improving the tear resistance and adhesion. After testing, the PVA/CMC/PAM/Borax hydrogel has high stress (1.4 MPa), high break elongation (792%), great toughness (4.67 MJ/m3). Hydrogel sensors can be used not only for human motion detection, but also for temperature and humidity detection. In summary, PVA/CMC/PAM/Borax hydrogel is expected to be a new flexible wearable device with great potential in the field of flexible wearables.
- Subjects
POLYMER networks; POLYACRYLAMIDE; SODIUM carboxymethyl cellulose; HYDROGELS; FATIGUE limit; BORAX; CELLULOSE
- Publication
Cellulose, 2023, Vol 30, Issue 18, p11721
- ISSN
0969-0239
- Publication type
Article
- DOI
10.1007/s10570-023-05548-3