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Layer-by-layer brush coating preparation method of thin film

A technique of brushing and filming, applied in the field of layer-by-layer brushing and preparation of films, can solve the problems of being easily affected by the external environment temperature, wasting solution, and difficult to obtain a film with a smooth and uniform surface. Adjust, save solution, improve the effect of uneven thickness of assembly

Active Publication Date: 2022-01-25
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the manual soaking method takes a lot of time and manpower; the layer-by-layer spin coating method is difficult to obtain a smooth and uniform film, and is easily affected by the external environment temperature during preparation; the layer-by-layer pump method needs to waste a lot of solutions

Method used

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  • Layer-by-layer brush coating preparation method of thin film
  • Layer-by-layer brush coating preparation method of thin film
  • Layer-by-layer brush coating preparation method of thin film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] basically as figure 1 The preparation process of the metal-organic framework film shown, the preparation of the metal-organic framework (in MOFCu 2 Dcam 2dabco as an example) of self-assembled films, the tools used in the preparation process are arranged according to the laboratory arrangement, and the number of preparations is arranged according to the needs of the experiment; specifically, the following steps are included:

[0040] Weigh copper acetate, D-camphoric acid (Dcam) and 1,4-diazabicyclo[2.2.2]octane (dabco), dissolve them respectively in absolute ethanol, and prepare the concentration to be 5mmol respectively / L copper acetate ethanol solution, 5mmol / L D-camphoric acid ethanol solution and 2.5mmol / L 1,4-diazabicyclo[2.2.2]octane ethanol solution were each 50mL, another 50mL of anhydrous ethanol.

[0041] The prepared copper acetate ethanol solution, D-camphoric acid ethanol solution, 1,4-diazabicyclo[2.2.2]octane ethanol solution and absolute ethanol wer...

Embodiment 2

[0054] The metal-organic framework MOF HKUST-1 thin film is prepared by layer-by-layer brushing method. The tools used in the preparation process are arranged according to the laboratory arrangement method, and the preparation quantity is arranged according to the experimental needs; the specific steps are as follows:

[0055] Weigh copper acetate and trimesic acid (BTC), dissolve them in absolute ethanol respectively, and prepare 50 mL each of copper acetate ethanol solution with a concentration of 5 mmol / L and trimesic acid ethanol solution with a concentration of 3.33 mmol / L. , Take another 50mL absolute ethanol.

[0056] The prepared copper acetate ethanol solution, trimesic acid ethanol solution and absolute ethanol were placed in beakers respectively.

[0057] The silicon wafer modified with hydroxyl groups was selected as the growth substrate for experiments.

[0058] Finally, according to the properties of the solution and the growth of the film, determine the stop ti...

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Abstract

The invention discloses a layer-by-layer brush coating preparation method of a film. A functional substrate is uniformly coated with a metal salt solution, a solvent and an organic ligand solution in a layer-by-layer coating manner to prepare the film. The method has the advantages of being high in synthesis speed, high in preparation efficiency, controllable in reaction temperature, adjustable in film area and thickness, capable of being applied to preparation of various film materials, low in cost, easy to operate and the like.

Description

technical field [0001] The invention belongs to the field of film preparation, and in particular relates to a layer-by-layer brushing preparation method of a film. Background technique [0002] With the development of science and technology, people pay more and more attention to environmental pollution, resource shortage, greenhouse effect and other issues. Researchers have conducted extensive research on these issues, among which thin film materials are widely used in storage, separation, sensors, wastewater treatment, catalysis, etc. due to their excellent characteristics, especially thin film materials obtained by layer-by-layer assembly. It has the characteristics of controllable growth direction, uniform thickness, good surface flatness, and adjustable film thickness. It has attracted much attention in the fields of optics, electricity, magnetism, energy, batteries, and catalysis. The liquid phase epitaxy method is to immerse the functionalized substrate in the metal s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08L87/00C08G83/00
CPCC08J5/18C08G83/008C08J2387/00
Inventor 谷志刚翟瑞马志洲张健
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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