Preparation method and control method of micro-droplets

A technology of micro droplets and droplets, which is applied in the preparation of microspheres, microcapsule preparations, and the granulation of liquid into bead droplets, etc., can solve the problems of fragility of nozzles, high energy consumption, and high cost, and achieve controllable costs and simple and effective methods. Effect
CN112007583AActive Publication Date: 2020-12-01UNIV OF ELECTRONIC SCI & TECH OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
UNIV OF ELECTRONIC SCI & TECH OF CHINA
Publication Date
2020-12-01

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Abstract

The invention discloses a preparation method and control method of micro-droplets. When the micro-droplets are prepared, the super-amphiphobic surface is firstly prepared, then, micro-droplets with different sizes can be formed on the super-amphiphobic surface by adjusting the suspension height and the inclination angle of the super-amphiphobic surface and the impact speed of the droplets on the super-amphiphobic surface, then a control part with negative electricity is used for being close to the micro-droplets, and under the interaction of charges, grabbing and control over the micro-droplets are achieved. Different from the prior art, the method provided by the invention does not need any additional complex equipment or driving mechanism, can obtain micron-to-millimeter level controllable liquid drops only through the impact of the liquid drops on the super-amphiphobic surface, and can realize lossless control of the liquid drops. The method is simple, convenient and effective, andan effective candidate method is provided for generation and control application of the micro-droplets.
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Description

technical field

[0001] The invention belongs to the technical field of micro-droplet preparation, and in particular relates to a method for preparing and manipulating micro-droplets. Background technique

[0002] As an excellent micro-carrier, micro-droplets have a wide range of applications in the fields of micro-nano technology and biochemical technology such as inkjet printing, biological detection, and microchemical reactors. However, despite their high potential for scientific and industrial applications, microdroplets are often tedious and difficult to generate and manipulate. So far, micro-nanofluidic technologies for generating tiny droplets usually include closed components such as channels, nozzles or needles. The use of closed components will greatly limit the generation of smaller micro-droplets. To obtain smaller micro-droplets, it is necessary to greatly reduce the size of the nozzle or use additional driving mechanisms such as thermal jets, electric fields, e...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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