Journal
LANGMUIR
Volume 37, Issue 1, Pages 400-405Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.langmuir.0c03048
Keywords
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Funding
- National Natural Science Foundation of China [51975423, NRF-2018R1A2B3001246]
- National Research Foundation of Korea
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This study demonstrates a method for controlling high-speed droplet transport on lubricated surfaces, with the induced lubrication film flow by charge deposition being the dominating factor. This new method opens a new path for high-performance manipulation of liquid droplets by controlling the lubrication liquid film flow with charge deposition.
Controllable liquid transportation is of great value in various practical applications. Here, we experimentally demonstrate a method of actuating high-speed droplet transport with large manipulation controllability on lubricated surfaces using a corona discharge generated by a simple needle-plate electrode configuration. Linear motion of droplets is realized with a maximum velocity of 30 mm/s. Factors affecting the velocity of these droplets are analyzed systematically, and the mechanism of droplet transport is explained. The lubrication film flow induced by charge deposition is shown to be the dominating factor in the droplet manipulation controllability. The new method presented here opens a new path of high-performance manipulation of liquid droplets by controlling the lubrication liquid film flow with charge deposition.
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