Investigation of Carbon-Based Composites for Elastic Heaters and Effects of Hot Pressing in Thermal Transfer Process on Thermal and Electrical Properties
Tomasz Raczyński,
Daniel Janczak,
Jerzy Szałapak,
Piotr Walter,
Małgorzata Jakubowska
Affiliations
Tomasz Raczyński
Institute of Metrology and Biomedical Engineering, Faculty of Mechatronics, Warsaw University of Technology, 00-661 Warsaw, Poland
Daniel Janczak
Institute of Metrology and Biomedical Engineering, Faculty of Mechatronics, Warsaw University of Technology, 00-661 Warsaw, Poland
Jerzy Szałapak
Institute of Metrology and Biomedical Engineering, Faculty of Mechatronics, Warsaw University of Technology, 00-661 Warsaw, Poland
Piotr Walter
Institute of Metrology and Biomedical Engineering, Faculty of Mechatronics, Warsaw University of Technology, 00-661 Warsaw, Poland
Małgorzata Jakubowska
Institute of Metrology and Biomedical Engineering, Faculty of Mechatronics, Warsaw University of Technology, 00-661 Warsaw, Poland
Wearable electronics are new structures with a wide range of possible applications. This study aims to analyze the effects of hot pressing in thermal transfer of different carbon-based composites as a new application method of screen-printed electronics on textiles. Flexible heaters were screen-printed on polyethylene terephthalate PET foil with composites based on graphene, carbon black, and graphite with different wt.%, measured and then hot pressed to measure and analyze differences. Research showed that the hot pressing process in thermal transfer resulted in decreased electrical resistance, increased power, and higher maximal temperatures. Best results were achieved with composites based on 12 wt.% graphene with sheet resistance lowered by about 40% and increased power by about 110%. This study shows promise for thermal transfer and screen-printing combination as an alternative for creating flexible electronics on textiles.
