(1. 暨南大学 先进耐磨蚀及功能材料研究院，广州 510632；
2. 华南理工大学 机械与汽车工程学院 广东省金属新材料制备与成形重点实验室，广州 510640；
3. 广东轻工职业技术学院 轻化工技术学院，广州 510300；
4. 暨南大学 韶关研究院，韶关 512027)
摘 要: 本文采用一步电沉积法在铜-石墨烯(Cu-GNS)复合镀层表面制备超疏水薄膜并研究其自清洁防污特性。当沉积电压达到15 V时，Cu-GNS复合镀层表面被多肉植物叶片状的粗糙结构完全均匀覆盖，接触角达到最大值152.3°，滚动角接近0°，实现了最佳的超疏水效果，赋予了复合镀层自清洁防污的性能。通过化学成分表征，确定了所制备薄膜的主要化学成分是低表面能物质十四酸铜，并分析其成膜反应机理。对经沉积薄膜后的Cu-GNS复合镀层进行自清洁防污测试，其表面没有被所浸液体污染，经过10次循环试验后表面依然没有残留液体，并且保持干燥，表明Cu-GNS复合镀层经沉积薄膜后，在实际应用中具有了出色的自清洁防污效果。
关键字: 一步电沉积；铜-石墨烯；超疏水薄膜；自清洁防污性能
（1. Institute of Advanced Wear & Corrosion Resistant and Functional Materials, Ji’nan University, Guangzhou 510632, China;
2. School of Mechanical & Automotive Engineering, Guangdong Key Laboratory for Advanced Metallic Materials Processing, South China University of Technology, Guangzhou 510640, China;
3. School of Chemical Engineering and Technology, Guangdong Industry Polytechnic, Guangzhou 510300, China;
4. Research Institute of Shaoguan, Ji’nan University, Shaoguan 512027, China）
Abstract:A superhydrophobic thin film was prepared on the surface of copper-graphene nanosheet (Cu-GNS) composite coatings by one-step electrodeposition, and the self-cleaning and anti-fouling properties had been studied. When the deposition voltage reaches 15 V, the surface of the Cu-GNS composite coatings is completely and evenly covered by the succulent leaf-like rough structure. In addition, the contact angle (CA) reaches a maximum of 152.3° and the sliding angle (SA) is close to 0°, achieving the best super-hydrophobic effect as well as self-cleaning and anti-fouling properties. Through chemical composition characterization, the main chemical composition of the prepared thin film is Cu[CH3(CH2)16COO]2, a low surface energy substance. Then, the thin film formation reaction mechanism was analyzed. The self-cleaning and anti-fouling test of Cu-GNS composite coating is carried out. After 10 cycles of the test, the surface of composite coatings was not contaminated by the immersion liquid and kept dry. As a result, the Cu-GNS composite coatings has a good self-cleaning and anti-fouling effect in practical applications.
Key words: one-step electrodeposition; Cu-GNS; superhydrophobic thin film; self-cleaning and anti-fouling performance
