Abstract 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 °C) and the maximum heating rate (8.4 °C/s) under 10 V applied voltage, which was much higher than the heaters without GO layer with the steady-state temperature 70.1 °C and the maximum heating rate 2.61 °C/s. Therefore, the existence of GO layer was first demonstrated to observably enhance the electrothermal efficiency of flexible fabric Joule heaters.

中文翻译：

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借助氧化石墨烯提高柔性石墨烯织物焦耳加热器的电热效率

摘要 柔性织物焦耳加热器由于其基材耐磨、成本低、易与服装相容等特点，具有广阔的应用前景。在本文中，石墨烯基织物焦耳加热器采用喷涂法制备，所制备的织物具有双层结构，分别对应于内石墨烯/聚氨酯层和外石墨烯氧化物层。织物焦耳加热器的形貌和电热性能是通过扫描电子显微镜和红外相机完成的。外层氧化石墨烯可以显着提高织物焦耳加热器的电热效率，在 10 V 外加电压下具有稳态温度 (162.6 °C) 和最大加热速率 (8.4 °C/s)，远高于没有 GO 层的加热器，稳态温度为 70。1 °C 和最大加热速率 2.61 °C/s。因此，GO层的存在首先被证明可以明显提高柔性织物焦耳加热器的电热效率。