Brush printing film making device and nano film printing method based on the same

Abstract

The invention discloses a brush printing film making device and a nano film printing method based on the same. The brush printing film making device includes a brush device. The brush device includesan outer liquid supply pipe (1), a fastening pipe (2) and an inner liquid supply pipe (3). Several protruding pen hair (5) is fixedly arranged on the inner wall of the inner liquid supply pipe (3). The several protruding pen hair (5) is divided into two parts. Each part is arranged on each of the opposite inner walls of the inner liquid supply pipe (3), and the tip ends of the two protruding pen hair parts intersect and converge. A loop of liquid storage hair (4) is fixedly arranged on the outer wall of the inner liquid supply pipe (3) and around the inner liquid supply pipe. The outer liquidsupply pipe (1) sleeves the liquid storage hair (4). The fastening pipe (2) sleeves the outer liquid supply pipe (1). The outer liquid supply pipe and the inner liquid supply pipe fixed with the liquid storage hair and protruding pen hair are fixed by the fastening pipe, and so the protruding pen hair and the liquid storage hair are combined to be a conical fiber brush head. An ultra-long functional nano film prepared by the invention has good repeatability.

Description

technical field [0001] The invention belongs to the technical field of functional materials. Specifically, the invention relates to a brush printing film forming device and a nanometer film printing method based on the device. Background technique [0002] Thin film materials are two-dimensional materials formed by depositing atoms, molecules or ions on the surface of a substrate. Membrane materials (or thin films) involve a wide range of manufacturing and application fields, including building materials, energy conservation and environmental protection, medicine, electronics, food, transportation, energy, chemicals and other industries. For example: protective barrier film, including card protection film, solar cell film, etc.; optical film, including liquid crystal display film, photosensitive film, etc.; electronic and electrical film, such as capacitor film, antistatic film, insulating film, etc. Inspired by the transfer control of brush ink in traditional Chinese paint...

AI Technical Summary

Problems solved by technology

[0004] (1) In the process of long-distance and large-scale printing of films by the brush printing device, the liquid consumption on the brush printing device is very large. The wider the film, the greater the liquid consumption. If the liquid is supplied by dipping liquid, the large-scale During the drawing process of the array, the film cannot be brushed for a long distance, and the liquid volume is large at the beginning and small at the end, resulting in a wide width and a thick thickness at the beginning, and a narrow width and thin thickness at the end. It is impossible to make the thickness and width uniform

If the method of liquid storage bag is used to supply liquid to the brush printing device, the liquid volume is large at the beginning, and the liquid volume is small at the end. The width is wide and thick at the beginning, and the width is narrow and thin at the end. There are also problems of uneven film thickness and width.

[0005] (2) When drawing a narrow film, if only a few cone-shaped fiber hairs side by side are used, since there is little liquid dynamically stored between the fiber hairs, it is easy to draw a volatile solution in large-scale drawing. After the solvent volatilizes, the fiber hair dries up, resulting in the unsmooth liquid supply at the fiber hair tip, affecting the quality of the brushing film or even failing to brush the film

[0006] (3) If the protruding bicuspid hairs in the brush printing device are fixed on the periphery of the inner liquid supply pipe, when the brush printing device is infiltrated by the functional molecule solution, the protruding bicuspid hairs on the periphery are prone to distortion due to uneven force, or even due to The curvature is too large, so that the bicuspid hairs cannot protrude from the combination of multiple hairs, which greatly affects the repeatability and stability of film drawing

[0007] (4) At present, many clamping devices that can meet the precision requirements for the preparation of micro-nano films have weight restrictions on the clamped brush printing device. The brush with ink bag and solution will exceed the weight limit of the clamping device, making the brush The angle and pressing degree of the printing device cannot meet the precision requirements, which affects the controllability of width and thickness and the repeatability of large-scale preparation

[0008] (5) The spin coating method is currently widely used in the preparation of thin films, but it will cause a lot of waste in spin coating and cannot accurately control the film pattern. The thickness of the film prepared by the dip coating method cannot be accurately controlled. Inkjet printing technology ink Poor adaptability, the film thickness of screen printing is thick

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