A two-step method fabricating a hierarchical leaf-like superamphiphobic PTFE/CuO coating on 6061Al
| Autor: | Zhexin Lv, Xue Zhou, Kaixing Song, Xiaoli Yin, Sirong Yu |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
General Chemical Engineering Organic Chemistry chemistry.chemical_element 02 engineering and technology Substrate (printing) engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Surfaces Coatings and Films Corrosion Contact angle chemistry.chemical_compound chemistry Chemical engineering Coating Aluminium Materials Chemistry engineering Chemical stability Thermal stability 0210 nano-technology Ethylene glycol |
| Zdroj: | Progress in Organic Coatings. 147:105723 |
| ISSN: | 0300-9440 |
| DOI: | 10.1016/j.porgcoat.2020.105723 |
| Popis: | Aluminum-based materials are widely used, but they are easily corroded and contaminated in some harsh conditions. Now, fabricating anti-wetting coatings on aluminum-base materials is a promising way to solve the above problems. In this work, a two-step method is developed to fabricate a hierarchical leaf-like superamphiphobic PTFE/CuO coating on 6061Al substrate, and it is simple, economical and environmentally friendly. The resultant coating is repellent to many liquids, such as tap water, ink, tea water, milk, H 2 SO 4 solution (pH 3), NaOH solution (pH 10), ethylene glycol and glycerol. All contact angles of these liquids on the PTFE/CuO coating are more than 150 ° , and water sliding angles are less than 10 ° . Importantly, the results of the self-cleaning, adhesion, chemical stability and corrosion resistance tests indicate that the PTFE/CuO coating could protect the 6061Al substrate from corrosion and pollution. Furthermore, after the UV, thermal stability and mechanical stability tests, the PTFE/CuO samples are still be superhydrophobic, which suggests that 6061Al substrate with the PTFE/CuO coating could be applied in harsh conditions. In sum, the method is especially suitable to large-scale industry production and promising for corrosion protection and functional applications of aluminum-based materials. |
| Databáze: | OpenAIRE |
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