Control method of jet printing distance based on near-field electrospinning jet printing multi-needle array experiment

Abstract

The invention discloses a spray printing spacing control method based on near-field electrospinning spray printing multi-needle array experiment. In the spinning system, the X-Y-Z-U motion platform starts to move according to the path planned by the host computer software, so that the organic solvent forms a Taylor cone at the tip of the nozzle under the action of an electric field, and realizes the spray printing of the array at equal intervals; by rotating the rotary scale The code disc drives the rotation of the array needles to adjust the angle; calculate the angle to be rotated by the array needles according to the formula, where x is the needle spacing you want to explore, and y is the actual array needle spacing. The invention has the advantages of simple implementation, clear control logic and high precision.

Description

technical field [0001] The invention relates to the technical field of electrospinning jet printing control technology, in particular to a jet printing distance control method based on a near-field electrospinning jet printing multi-needle array experiment. Background technique [0002] Electrospinning technology Electrospinning technology was first proposed by Formhzls in 1934, and then Taylor et al. proposed the concept of Taylor cone for the deformation of charged polymers in the electrospinning process in 1964. It was not until the 1990s that people began to Extensive attention has been paid to electrospinning technology. However, nanofibers produced by electrospinning are difficult to collect in an orderly manner, and it is also difficult to arrange them in an orderly manner. In 2006, Sun Daoheng and others proposed the near-field electrospinning direct-writing technology. The electrospinning direct-writing technology based on near-field electrospinning utilizes the ad...

AI Technical Summary

Problems solved by technology

In the application process of near-field electrospinning jet printing technology, due to the low efficiency of near-field single-needle jet printing, researchers from universities and colleges gradually began to explore near-field multi-needle array jet printing experiments. When array printing, sometimes it is necessary to ensure that the arrangement direction of the needles is perpendicular to the direction of the traction axis, and sometimes it is necessary to explore the printing effect of different needle pitches, so needles arranged in arrays with various needle pitches are required

For the same exploratory experiment, repeated replacement of needles will add a human error factor to the experiment, and customizing an array of four-needle needles on the market usually costs more than 100 yuan, which undoubtedly increases the cost.

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