2013 Fiscal Year Final Research Report
Water Collection of Hafinia Films with Petal Effect and Application to Water Harvesting Devices
| Project/Area Number |
23560805
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Inorganic materials/Physical properties
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| Research Institution | Nihon University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2013
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| Keywords | 表面・界面物性 / Petal Effect / ゾルーゲル法 / 撥水性 / 親水性 / パターン / 集水 / スクリーン印刷 |
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| Research Abstract |
Water collecting property of sol-gel derived hafnia films with petal effect was investigated. Preparation and water collection of hydrophilic-hydrophobic patterned films by screen printing method was also investigated.
The hafnia films containing glycolic acid and glycine showed petal effect and the films collected 0.49 and 0.47 g of water from water vapor, respectively, when the films with 5 cm X 5 cm in size stood in water vapor for 2 h. The glass substrate collected 0.23 g of water in the same condition. The patterned films were prepared as follows. Hydrophobic patterns of 1 mm in width were prepared by printing the hafnia sols containing acetic acid, which showed hydrophobicity, on the super-hydrophilic film by screen printing processes. The patterned films collected 0.47 g of water in the same condition mentioned above. These results indicate that the films with petal effect and patterned films collected a large amount of water from water vapor.
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Research Products
(9 results)
