Journal
MATERIALS LETTERS
Volume 234, Issue -, Pages 101-104Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2018.09.078
Keywords
Graphene inks; Graphene oxide; Spray coating; Electrothermal efficiency; Functional; Surfaces
Funding
- Natural Science Foundation of Shandong Province of China [ZR2018QEM004]
- Natural Science Foundation of China [51672141, 51306095]
- Shandong Province College Science and Technology Plan Project [J17KA030]
- China Postdoctoral Science Foundation [2014M561887, 2015T80697]
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Flexible fabric Joule heaters reflect a broad prospect due to their wearable substrate, low cost and easily compatibility to garment. In this paper, graphene-based fabric Joule heaters were fabricated with spraying coating method, the as-prepared fabrics possessed bilayer structure corresponding to the inner graphene/polyurethane layer and the outer graphene oxide layer respectively. The morphology and electrothermal performance of the fabric Joule heaters were accomplished by scanning electron microscopy and infrared camera. The outer graphene oxide could dramatically promote the electrothermal efficiency of the fabric Joule heaters with the steady-state temperature (162.6 degrees C) and the maximum heating rate (8.4 degrees C/s) under 10 V applied voltage, which was much higher than the heaters without GO layer with the steady-state temperature 70.1 degrees C and the maximum heating rate 2.61 degrees C/s. Therefore, the existence of GO layer was first demonstrated to observably enhance the electrothermal efficiency of flexible fabric Joule heaters. (C) 2018 Elsevier B.V. All rights reserved.
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