VISCOELASTIC CHARACTERIZATION AND MODELING OF THE PH-RESPONSIVE MXENE/CHITOSAN COMPOSITE FOAMS FOR WEARABLE DEVICES
Abstract
The ability of intelligent polymer foams to change their structure and volume phase in response to external stimuli such as temperature, pressure, light, pH, solvents, electrical, and magnetic files has opened up new opportunities for advanced technologies. It is also important due to its potential in soft robotics and wearable electronics. In order to optimize the responses to external stimuli and have outstanding mechanical properties, geometric design plays a critical role. However, the parameters of conventional manufacturing techniques restrict the structural geometric design, and the poor mechanical properties of the foams limit their applications. Therefore, by providing synergistic effects of internal structures and intrinsic material properties, hierarchically porous structured foams will be successfully fabricated because distinct three-dimensional (3D) structures can demonstrate optimized properties of low density, the ability to recover from large deformation, and high mechanical properties. Additionally, sufficient characteristics can be provided to materials in areas requiring different functions by controlling their internal structure. This research addresses highly viscoelastic, compressible, and pH-responsive wearable devices (e.g., wearable strain sensor for real-time sweat volume monitoring) by incorporating synergistic effects of Ti3C2Tx MXene, an emerging two-dimensional (2D) nanomaterial, and chitosan, a natural polymer. Moreover, we will systematically investigate viscoelastic properties and modeling for pH-responsive MXene/chitosan composite foams to examine further characterization. Accordingly, benefiting from the high viscoelastic properties and pH-responsive performance of the foams, they suggest having great potential for wearable electronics, sensing devices, and biomedical applications.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Apr 20, 2023
- Source ID
- FA23862214069
Entities
People
- Il Yub Choi
Organizations
- Air Force Office of Scientific Research
- Sungkyunkwan University
- United States Air Force