| Spray-coated fluorine-free superhydrophobic coatings with easy repairability and applicability | |
| Department | 固体润滑国家重点实验室 |
Wu WC(吴伟词); Wang XL(王晓龙) ; Liu XJ(刘新杰); Zhou F(周峰)
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| 2009 | |
| Source Publication | Applied Materials and Interfaces
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| ISSN | 1944-8244 |
| Volume | 1Issue:8Pages:1656-1661 |
| Abstract | The present paper reports a very simple and low-cost fluorine-free superhydrophobic coating prepared by spray-coating metal alkylcarboxylates, for example, Cu[CH3(CH2)10COO]2, onto virtually any substrates. Superhydrophobicity with a static water contact angle of about 160° and a sliding angle of 5° was achieved from the proper precursor concentration. The advantages of the present approach include the cheap and fluorine-free raw materials, environmentally benign solvents, an industrial implementation method, and easy repairability and applicability so as tomake a great application potential in practice. The hydrophobicity of coatings and the adhesion to water were found to be dependent on the surfacemorphology that was governed by the precursor concentrations fromwhich coatings were prepared. The static wetting behavior of water droplets with different sizes gentlly deposited on the coatings was studied in more detail and correlated to theories, i.e., Wenzel’s and Cassie’s models. The results indicated that nanoribbon- textured coatings prepared from low precursor concentration (0.02 M) exhibited a transition from the metastable Cassie-Baxter state to the Wenzel state with increments in the droplet volume, and eventually droplets firmly stick to the surface even when the droplet was gently deposited on the surface. Surface coatings with dual roughness at both microscale and nanometer scale were formed as the concentration (0.04 M) was increased and conferred a stable Cassie state, even for increased droplet size and increased droplet deposit speed. |
| Keyword | Superhydrophobic Coating Spray Repairability Wenzel-cassie Transition |
| Subject Area | 材料科学与物理化学 |
| Funding Organization | the “Top Hundred Talents” Program of CAS;“973” (Grants 2007CB607601);NSFC (Grants 50835009;20804055) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 材料表面与界面行为研究组 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/2001 |
| Collection | 固体润滑国家重点实验室（LSL） |
| Corresponding Author | Zhou F(周峰) |
| Recommended Citation GB/T 7714 | Wu WC,Wang XL,Liu XJ,et al. Spray-coated fluorine-free superhydrophobic coatings with easy repairability and applicability[J]. Applied Materials and Interfaces,2009,1(8):1656-1661. |
| APA | 吴伟词,王晓龙,刘新杰,&周峰.(2009).Spray-coated fluorine-free superhydrophobic coatings with easy repairability and applicability.Applied Materials and Interfaces,1(8),1656-1661. |
| MLA | 吴伟词,et al."Spray-coated fluorine-free superhydrophobic coatings with easy repairability and applicability".Applied Materials and Interfaces 1.8(2009):1656-1661. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 20091656-1661.PDF（323KB） | 开放获取 | License | View Application Full Text | |||
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