Simple Approach to High-Performance Stretchable Heaters Based on Kirigami Patterning of Conductive Paper for Wearable Thermotherapy Applications
| Autor: | Sung-Hun Ha, Hye Moon Lee, Nam-Su Jang, Jong-Man Kim, Kang-Hyun Kim, Soo-Ho Jung |
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| Rok vydání: | 2017 |
| Předmět: |
Resistive touchscreen
Hot Temperature Materials science Fabrication Wearable computer Nanotechnology Hyperthermia Induced 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Heating Wearable Electronic Devices Thermal General Materials Science 0210 nano-technology Electrical conductor Low voltage |
| Zdroj: | ACS Applied Materials & Interfaces. 9:19612-19621 |
| ISSN: | 1944-8252 1944-8244 |
| DOI: | 10.1021/acsami.7b03474 |
| Popis: | Recent efforts to develop stretchable resistive heaters open up the possibility for their use in wearable thermotherapy applications. Such heaters should have high electrothermal performance and stability to be used practically, and the fabrication must be simple, economic, reproducible, and scalable. Here we present a simple yet highly efficient way of producing high-performance stretchable heaters, which is based on a facile kirigami pattering (the art of cutting and folding paper) of a highly conductive paper for practical wearable thermotherapy. The resulting kirigami heater exhibits high heating performance at low voltage (40 °C at 1.2 V) and fast thermal response (60 s). The simple kirigami patterning approach enables the heater to be extremely stretchable (400%) while stably retaining its excellent performance. Furthermore, the heater shows the uniform spatial distribution of heat over the whole heating area and is highly durable (1000 cycles at 300% strain). The heater attached to curvilinear body parts shows stable heating performance even under large motions while maintaining intimate conformal contact with the skin thanks to the high stretchability and sufficient restoring force. The usability of the heater as a wearable thermotherapy device is demonstrated by increased blood flow at the wrist during operation. |
| Databáze: | OpenAIRE |
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