Journal
2019 IEEE INTERNATIONAL CONFERENCE ON MANIPULATION, MANUFACTURING AND MEASUREMENT ON THE NANOSCALE (IEEE 3M-NANO)
Volume -, Issue -, Pages 294-297Publisher
IEEE
DOI: 10.1109/3m-nano46308.2019.8947363
Keywords
anti-condensation; superhydrophobic; WEDM
Categories
Funding
- China-EU H2020 International Science and Technology Cooperation Programme (FabSurfWAR) [2016YFE0112100, 644971]
- Jilin Province Science and Technology Development Program Funded projects of China [20180101324JC]
- Science and Technology Project of Jilin Provincial Education Department during the 13th Five-Year Plan Period [JJKH20190542KJ]
- Lu Quan Innovation Foundation of College of Mechanical and Electric Engineering, Changchun University of Science and Technology of China
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The aluminum alloy 6061 was used as the substrate, and the hydrophobic surface was prepared by wire cut electrical discharge machining (WEDM), and the superhydrophobic surface was obtained by optimizing the processing size. The condensation performance of the three different wettability surfaces under condensing conditions was observed and the mechanism analysis was carried out. The results show: The condensation performance and wettability of the aluminum alloy surface are directly related. Under the test conditions of the same temperature and humidity, the condensation speed from the fast to the slow is smooth surface, hydrophobic surface and superhydrophobic surface; at the same temperature and humidity change test conditions, the smooth surface has the most condensation, followed by the hydrophobic surface, and the superhydrophobic surface has the least amount of condensation. Through the mechanism analysis, it is found that the surface of the superhydrophobic surface produced a large Laplace pressure, and the micro-nano structure caused the transition of the condensed droplets from Wenzel to Cassie, thereby increasing the anti-condensation effect of the surface.
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