Batteryless wearable technology has wide applications. In particular, human body surface temperature controlling fabrics can help regulate skin temperature in heat or cold. This study investigated surface temperature distribution of the fabrics coated with reduced graphene oxide (rGO) on simulated human body skin conditions at 18 °C (cool) and 27 °C (neutral) ambient air temperatures. Polyester fabrics were spin-coated with a graphene-oxide (GO) solution of 0.2 wt%. Preparation of rGO was processed by using a microwave oven (MW-rGO). Non-treated fabric (CON) was compared to GO and MW-rGO. The surface temperature of a hot plate was maintained at 35 °C or 40 °C. The test fabrics were put on the heated hot plate or non-heated-outer portions of the hot plate. Surface temperatures of MW-rGO on the heated hot plate at an air temperature of 18 °C (cool) were higher than those of non-treated fabric (CON) under the same conditions (p < 0.01). No effects from the graphene treatment were found on non-heated portions of the graphene oxide fabric (GO) or the reduced graphene oxide fabric (MW-rGO). On the non-heated portions, surface temperatures were higher at the location closer to the hot plate compared to the location farther from the hot plate (p < 0.05). These results partially represent thermal effects of MW-rGO under a specific environment and heat source. Our findings enable an application of reduced graphene oxide to body temperature regulating clothing.

中文翻译：

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低温和中性空气温度下微波还原石墨烯氧化物涂层聚酯织物对模拟人皮肤的热效应

无电池可穿戴技术具有广泛的应用。特别地，人体表面温度控制织物可以帮助调节热或冷的皮肤温度。这项研究调查了在18°C（凉爽）和27°C（中性）环境空气温度下模拟人体皮肤条件下涂有还原氧化石墨烯（rGO）的织物的表面温度分布。用0.2重量％的氧化石墨烯（GO）溶液旋涂聚酯织物。通过使用微波炉（MW-rGO）来处理rGO的制备。将未处理的织物（CON）与GO和MW-rGO进行了比较。热板的表面温度保持在35°C或40°C。将测试织物放在加热的加热板上或加热板的非加热外部上。p <0.01）。在氧化石墨烯织物（GO）或还原的氧化石墨烯织物（MW-rGO）的未加热部分上未发现来自石墨烯处理的影响。在非加热部分，与远离热板的位置相比，离热板更近的位置的表面温度更高（p <0.05）。这些结果部分代表了MW-rGO在特定环境和热源下的热效应。我们的发现使得能够将还原的氧化石墨烯应用于体温调节服。