(1. 暨南大學(xué) 先進(jìn)耐磨蝕及功能材料研究院，廣州 510632；
2. 華南理工大學(xué) 機(jī)械與汽車工程學(xué)院 廣東省金屬新材料制備與成形重點(diǎn)實(shí)驗(yàn)室，廣州 510640；
3. 廣東輕工職業(yè)技術(shù)學(xué)院 輕化工技術(shù)學(xué)院，廣州 510300；
4. 暨南大學(xué) 韶關(guān)研究院，韶關(guān) 512027)
摘 要: 本文采用一步電沉積法在銅-石墨烯(Cu-GNS)復(fù)合鍍層表面制備超疏水薄膜并研究其自清潔防污特性。當(dāng)沉積電壓達(dá)到15 V時(shí)，Cu-GNS復(fù)合鍍層表面被多肉植物葉片狀的粗糙結(jié)構(gòu)完全均勻覆蓋，接觸角達(dá)到最大值152.3°，滾動(dòng)角接近0°，實(shí)現(xiàn)了最佳的超疏水效果，賦予了復(fù)合鍍層自清潔防污的性能。通過化學(xué)成分表征，確定了所制備薄膜的主要化學(xué)成分是低表面能物質(zhì)十四酸銅，并分析其成膜反應(yīng)機(jī)理。對經(jīng)沉積薄膜后的Cu-GNS復(fù)合鍍層進(jìn)行自清潔防污測試，其表面沒有被所浸液體污染，經(jīng)過10次循環(huán)試驗(yàn)后表面依然沒有殘留液體，并且保持干燥，表明Cu-GNS復(fù)合鍍層經(jīng)沉積薄膜后，在實(shí)際應(yīng)用中具有了出色的自清潔防污效果。
關(guān)鍵字: 一步電沉積；銅-石墨烯；超疏水薄膜；自清潔防污性能
（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
