3D printing of stretchable, ionic conductive, adhesive hydrogel with enhanced water retention for motion detection. (2022)

• Record Type: Journal Article
• Authors: Lin, Congjian; Yang, Hui Ying
• Is Part Of: Materials today. Volume 70(2022)
• Page Start: 265
• Page End: 269
• Publication Date: 2022
• Subjects: Ionic conductive hydrogel -- 3D printing -- Adhesion -- Capacitive sensor; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2022.09.235
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Stretchable ionic conductors, including ionic conductive hydrogels, are ideal for flexible electronics. However, due to poor adhesion to human skin and quick drying in ambient conditions, the development of hydrogel-based electronics is currently constrained. This research used a digital light processing (DLP) technique to make a 3D printed ionic conductive hydrogel. The novel hydrogel's high ZnSO4 salt content improves interfacial adhesion and water retention. A sandwiched hydrogel-elastomer capacitive sensor was created to show its ability to collect body signals, which opens a new route in flexible sensors.