Bionic structure for long-distance spontaneous directional transmission of liquid drops and processing method of bionic structure

Abstract

The invention relates to the field, and particularly relates to a bionic structure for the long-distance spontaneous directional transmission of liquid drops and a processing method of the bionic structure. The bionic structure comprises at least two conical columns; the conical columns are connected end to end and are coaxially arranged to form a strip-shaped conical thorn; and the tip angles andthe lengths of the plurality of conical columns of the conical thorn are gradually increased along with the direction from the tip to the bottom surface of the conical thorn, so that liquid drops atthe tip of the conical thorn move spontaneously towards the non-tip part of the conical thorn all the time. In the transmission process of the liquid drops, the Laplace forces on different conical columns gradually are reduced, but the overall size of the conical thorn changes continuously, so that the liquid drops are transmitted on the conic thorn towards a specified direction all the time. According to the processing method, the electrolytic condition and the moving relation are skillfully utilized, and fine metal wires can be quickly processed into a special shape consisting of a pluralityof the conical columns, so that the machining accuracy can be accurately controlled, and the processing efficiency and the processing accuracy are greatly improved.

Description

technical field [0001] The invention relates to the field, in particular to a bionic structure for long-distance spontaneous and directional transport of liquid droplets and a processing method thereof. Background technique [0002] How to manipulate micro-droplets and make them directional transport has important theoretical significance and practical application value. For example, collecting water from dry air is of great significance to survival in arid areas; for example, through directional control of the movement of micro-droplet cooling water, it is of great significance to effectively dissipate heat from microelectronic components to ensure their efficient work. ; Such as manipulating liquids dissolving different reactants to mix and react, is of key significance for the development of microfluidic devices. In addition, how to achieve directional transport with lower energy consumption as much as possible is of great significance for energy conservation. [0003] ...

AI Technical Summary

Problems solved by technology

However, the driving force for the cactus spine-like structure for spontaneous droplet transport is inversely proportional to the curvature (the reciprocal of the diameter) Laplace pressure difference

When the length of the single-segment conical structure increases, its diameter will also increase linearly, so that the driving force for transporting droplets, the Laplace force, will gradually decrease, making it impossible to continue to transport micro-droplets over a greater distance

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