Regulating device and method for super hydrophobic surface wettability
A technology of superhydrophobic surface and control device, applied in the field of material surface wettability, can solve the problems of complex repeated control, and achieve the effect of good repeatability and easy realization
Inactive Publication Date: 2012-09-26
DALIAN MARITIME UNIVERSITY
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Problems solved by technology
Its shortcoming is that it is more complicated to achieve repeated regulation, and it is not suitable for microfluidic systems.
Method used
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[0019] The present invention will be further described below in conjunction with the accompanying drawings.
[0020] The superhydrophobic surface wettability control device includes a trace gas pump 1, a piping system 2, a trace air pressure gauge 3, a water tank 5, a trace hydraulic gauge 6, a trace liquid pump 7 and a superhydrophobic surface 9, and a liquid is arranged on the superhydrophobic surface 9 A chamber 8, a gas chamber 14 is arranged on one side of the liquid chamber 8, the gas chamber 14 communicates with the liquid chamber 8 through a microchannel 12, the liquid chamber 8 is provided with a liquid inlet 10 and a liquid outlet 11, and the liquid inlet 10 The liquid outlet 11 is respectively arranged on the opposite sides of the liquid chamber 8, the liquid inlet 10 is connected with the micro hydraulic gauge 6 and the outlet of the micro liquid pump 7 through a piping system in turn, the liquid outlet 11 is connected with the water tank 5 through a piping system, ...
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A regulating device for super hydrophobic surface wettability comprises a micro gas pump, a pipeline, a micro air-pressure meter, a water tank, a micro liquid pressure meter, a micro liquid pump and a super hydrophobic surface, wherein a liquid cavity and a gas cavity, which are formed on the super hydrophobic surface, are communicated through a micro channel; the liquid cavity is provided with aliquid inlet and a liquid outlets, which are respectively formed on the opposite surfaces of the liquid cavity, the liquid inlet is sequentially connected with the liquid pressure meter and the microliquid pump, and the liquid outlet is connected with the water tank which is connected with an inlet of the micro liquid pump; a gas inlet is formed on the gas cavity and is connected with the micro air-pressure meter and the micro gas pump; and an inlet of the micro gas pump is communicated with the outside. According to the invention, the contact manner of the gas, liquid and solid in the liquid cavity is controlled through changing the pressure of the gas cavity, so as to realize the changing of the super hydrophobic surface wettability. The method and the device provided by the invention have the advantages of the adoption of a method based on mechanics, easiness in realization, and good repeatability, and are suitable for a micro fluidic system.
Description
technical field [0001] The invention relates to the technical field of material surface wettability, in particular to a device and method capable of regulating material surface wettability. Background technique [0002] Wetting is a common phenomenon in daily production and life, and wettability is one of the important characteristics of solid surfaces. Superhydrophobic surfaces have broad application prospects in national defense, industrial and agricultural production, and people's daily life, and have attracted great attention. Super-hydrophobic surfaces have been used to prevent snow accumulation on antennas, doors and windows, to reduce resistance in ships, submarines and other shells, to prevent adhesion and blockage on the inner wall of oil pipelines, and to reduce wear and tear on the inner walls of oil pipelines and micro-syringe needles, and to make textiles and leather products waterproof and anti-fouling, etc. The so-called surface with controllable wettability ...
Claims
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IPC IPC(8): C04B41/45
Inventor 张会臣李小磊
Owner DALIAN MARITIME UNIVERSITY