Journal
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Volume 632, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.colsurfa.2021.127793
Keywords
Poly(acrylic acid); Tough; Hydrogel; Adhesive; Self-healing; Sensor
Categories
Funding
- Exploratory Challenging Research of Japan Society for the Promotion of Science [19K21923]
- Grants-in-Aid for Scientific Research [19K21923] Funding Source: KAKEN
Ask authors/readers for more resources
The study aims to address the challenges of balancing mechanical properties, adhesion, and self-healing ability in hydrogel used in wearable devices, as well as simplifying the preparation process of adhesive hydrogels. A novel PAA/Fe/PVP hydrogel was prepared via one-step polymerization to achieve high adhesion, good mechanical properties, and rapid self-healing ability.
The purpose of this work is to address the two existing challenges. One is to achieve the balance of mechanical properties, adhesion, and self-healing ability in hydrogel used in wearable devices. The other is to use mature products as raw materials and simplify the preparation process of adhesive hydrogels, so as to make it possible for large-scale industrial production. A novel PAA/Fe/PVP hydrogel has been prepared by a simple one-step radical polymerization to meet the above requirements. As the main component of adhesives in daily life, PVP is used to improve the adhesion of the hydrogel. The adhesion as high as 64 kPa is achieved in the hydrogel. The adhesion can also withstand multiple uses due to the good mechanical properties of the hydrogel. Furthermore, the hydrogel displays outstanding self-healing ability in terms of both mechanical properties and conductivity. Because of the good mechanical properties, robust adhesion and rapid self-healing ability, the hydrogel-based sensors have demonstrated stability, accuracy and reliability in real-time monitoring of subtle facial micro-expressions and large human activities. In addition, the method uses mature products as raw materials, and the preparation process is simple, so it has the potential for large-area and low-cost production.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available