This paper presents the characterization of solar heat absorber coatings on metal sheets using reduced graphene oxide polymer composites. The reduced graphene oxide (rGO) polymer composite material was evenly coated by the silk-screen method on three types of metal sheets. The thickness of the coated sheet samples was 0.25 mm which were exposed under solar radiation and the variations in temperatures versus time were recorded. The influence of solar radiation and angle of incidence during peak hours was recorded. The results show that stainless steel coated by rGO absorber gain more heat than other metal sheet absorbers. These coatings have a promising scope in solar thermal applications and the technique is cost-effective to characterize efficient solar absorber coatings.

本文介绍了使用还原型氧化石墨烯聚合物复合材料的金属板上太阳能吸热剂涂层的特性。通过丝网印刷方法将还原的氧化石墨烯（rGO）聚合物复合材料均匀地涂覆在三种类型的金属板上。涂覆的片状样品的厚度为0.25mm，其暴露在太阳辐射下，并记录温度随时间的变化。记录了高峰时段太阳辐射的影响和入射角。结果表明，rGO吸收剂涂层的不锈钢比其他金属薄板吸收剂吸收更多的热量。这些涂料在太阳能热应用方面有广阔的前景，该技术具有成本效益，可表征高效的太阳能吸收剂涂料。