Electronic injection printing method for pre-printed functional layer induced jet flow

Abstract

The invention belongs to the technical field of advanced manufacturing, and relates to an electronic injection printing method for a pre-printed functional layer induced jet flow, which comprises the following steps of: pre-printing a complex micro-nano functional structure layer pattern on a substrate based on a jet flow jetted by an electrohydrodynamic effect, and then inducing jet flow size, jet flow deposition position and double-nozzle combined collaborative injection printing under the action of electric field force, so that injection printing manufacturing with the same shape as the pre-printed functional layer is rapidly achieved, the preprinted functional layer and a subsequent nanoscale continuous jet flow are fully bonded and solidified, and the composite micro-nano functional structure is formed. According to the electronic injection printing method, the pre-printed functional layer is adopted to change the distribution condition of substrate electric field force; the jet deposition position precision is ensured; the process size error of the composite micro-nano functional structure is reduced; the method has the advantages of low equipment cost, simple process, short processing period and the like; the micro-nano functional structure is optimized; the use performance of a nano device is improved; and the service life of the nano device is prolonged.

Description

technical field [0001] The invention belongs to the field of advanced manufacturing technology and relates to an electrospray printing method for inducing a jet flow with a preprinted functional layer. Background technique [0002] Electrojet printing is a non-contact additive manufacturing technology that uses fluid pressure to supply functional ink to the outlet of the nozzle to form an initial pendant drop, and then applies a high voltage between the nozzle and the substrate. At this time, the pendant drop Taylor cones are formed under the combined effects of electric field force, ink surface tension, gravity, and viscosity. When the electric field force continues to increase, liquid droplets are ejected from the tip of the Taylor cone, forming a stable micro-nano jet. Due to the advantages of high processing precision, high material utilization rate, simple process, and strong printing controllability, electrojet printing is widely used in the manufacturing process of fl...

AI Technical Summary

Problems solved by technology

[0003] However, in the process of electrojet printing, the jet is subjected to comprehensive effects such as fluid pressure, electric field force, and liquid surface tension, and the flight of the jet is difficult to control. For micro-nano functional structures with complex patterns, there are large structural size errors and low accuracy of jet deposition positions. question

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