A brush printing film-making device and a nano-film printing method based on the device

Abstract

A writing brush printing filming device and a nano film printing method based on the device. The writing brush printing filming device comprises a writing brush device. The writing brush device comprises an outer liquid supply tube (1), a tightening tube (2), and an inner liquid supply tube (3). A plurality of protruding brush hair (5) is fixedly disposed on the inner wall of the inner liquid supply tube (3). The plurality of protruding brush hair (5) is divided into two parts. The two parts are correspondingly disposed on relative inner walls of the inner liquid supply tube (3), and tips of the two parts of the protruding brush hair (5) are intersected and put together. A circle of liquid storage hair (4) is fixedly disposed on the outer wall of the inner liquid supply tube (3) surrounding the inner liquid supply tube (3), the outer liquid supply tube (1) is sleeved on the liquid storage hair (4), the tightening tube (2) is sleeved on the outer liquid supply tube (1), and the outer liquid supply tube (1) and the inner liquid supply tube (3) in which the liquid storage hair (4) and the protruding brush hair (5) are fixed are fixed by means of the tightening tube (2), so that the protruding brush hair (5) and the liquid storage hair (4) are combined into a conical fiber writing brush point. The ultra-long functional nano film prepared by using the writing brush printing filming device 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

Images