Three-dimensional printing method capable of realizing electric field induction assisted electrospray

Abstract

The invention belongs to the technical field of advanced manufacture and relates to a three-dimensional printing method capable of realizing electric field induction assisted electrospray. A functional material solution is delivered into a spray needle at a constant flow rate, the functional material solution is sheared by utilizing an electric field force applied to the spray needle to form a micro / nano-scale stable jet flow smaller than the size of the spray needle, and a micro / nano structure is printed; and meanwhile, the structure is regulated and controlled by utilizing a spatial electricfield force generated by an induction electrode, and finally, a complex micro / nano three-dimensional structure is obtained by electric field induction, stress deformation, cooling for curing and three-dimensional molding. The complex micro / nano three-dimensional structure manufactured by using the three-dimensional printing method capable of realizing electric field induction assisted electrospray, disclosed by the invention, has the advantages such as free molding of the spatial three-dimensional structure, high printing resolution and high molding speed, the complex micro / nano three-dimensional structure manufactured by using the method has the line width of dozens of nanometers, and the complex micro / nano three-dimensional structure manufactured by printing can be widely applied to thefields such as electronics, information and energy.

Description

technical field [0001] The invention belongs to the field of advanced manufacturing technology, and relates to a three-dimensional printing method for electric field-induced assisted electrospraying. Background technique [0002] With the improvement of device performance and integration, the functional structure of the device has gradually developed from a two-dimensional structure to a three-dimensional structure. For example, the three-dimensional micro-electromechanical system based on the cantilever beam structure provides a larger bandwidth and adjustable frequency than the two-dimensional system; compared with the macro-optoelectronic device, the micro-optoelectronic device is not only small in size, light in weight, but also low in power consumption. Therefore, the micro / nano three-dimensional structure plays an important role in the miniaturization, integration, and energy saving of high-performance devices. In addition, as the sensing unit of high-performance devi...

AI Technical Summary

Problems solved by technology

At present, 3D printing technology mainly adopts layer-by-layer direct writing, which is accumulated layer by layer to form a 3D structure, and it is difficult to manufacture complex 3D structures.

In addition, the resolution of the current 3D printing technology mainly depends on the size of the nozzle hole, which is limited by the nozzle hole processing, and it is difficult to realize the processing of sub-micron and below structures.

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