石墨烯微片减反射涂层的性能研究

Study on the Properties of Graphene Microchip Antireflection Coating

摘要: 为了降低铝材表面的反射指数，提高太阳能的吸收率，本文采用纳米金属氧化物微粒/树脂复合粘结剂，加入石墨烯微片为太阳能吸附剂，在经过不同程度摩擦处理的铝基体上用不同的涂覆方法制成了一系列低成本的太阳能减反射涂层。使用扫描电子显微镜(SEM)进行涂层表面形貌分析，紫外可见分光光度计进行反射率测试和吸收率(α)计算。实验结果表明，喷涂方法有利于降低涂层反射率。基底的粗糙程度越大，石墨烯微片的粒度越小，涂层的反射率越低。同时发现，涂层中添加酚醛树脂也可以有效降低反射率。

Abstract: In order to reduce the reflection index of the aluminum surface and improve the absorption rate of solar energy, a series of low-cost solar antireflection coatings were made on the aluminum substrate by different coating methods with nano metal oxide particles/resin composite binder and graphene microchip as the solar adsorbent. Scanning electron microscope (SEM) was used to analyze the surface morphology of the coating, and UV-Vis spectrophotometer was used to measure the reflectivity and calculate the absorption rate (α). The experimental results show that the spraying method can reduce the reflectivity of the coating. The larger the roughness of the substrate, the smaller the particle size of the graphene microchip and the lower the reflectivity of the coating. At the same time, the addition of phenolic resin in the coating can also effectively reduce the reflectivity.