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Method for solving cracking of silicon dioxide film and coloring of glass by using methylene blue solution

A technology of silica and methylene blue, which is applied in chemical instruments and methods, coatings, water/sludge/sewage treatment, etc., can solve the problems of complex process and process and poor improvement, and achieve good transparency and reduce Stress action, effect of slowing volatilization

Active Publication Date: 2020-01-07
山东政和产业大数据技术研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods have certain effects, but the process and technology are very complicated, and the repeatability and improvement are poor.

Method used

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  • Method for solving cracking of silicon dioxide film and coloring of glass by using methylene blue solution
  • Method for solving cracking of silicon dioxide film and coloring of glass by using methylene blue solution
  • Method for solving cracking of silicon dioxide film and coloring of glass by using methylene blue solution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Measure 8.926ml of water and 35.68ml of ethanol in a beaker, stir on a magnetic stirrer for 10 minutes to make them fully mixed, then add 2.23ml of n-butylamine to the beaker, stir for 30 minutes, and add 4.46ml of tetraethyl orthosilicate, stirred at room temperature for about 5 minutes and allowed to stand for 1-5 minutes to form a sol.

Embodiment 2

[0028] The cleaned glass substrate is suspended on the support, and the SiO obtained in Example 1 2 The sol was loaded into the watering can before it was gelled, sprayed onto the glass substrate, and the distance between the nozzle and the glass substrate was controlled at 3 cm, and sprayed continuously for 3 times to obtain a SiO-coated 2 thin film glass substrate.

Embodiment 3

[0030] In Example 2 will be coated with SiO 2 The glass substrate of the film is left to stand in the air for 1-5 minutes. When the gel coat is not completely dry, the glass substrate is immersed in different concentrations of methylene blue solutions, and the absorbance of the solution is measured every half hour, and finally obtained after standing for 2 minutes. Afterwards, it works best by immersing it in a methylene blue solution. If the time is too short, the gel is not completely gelled, and if the time is too long, the gel will dry and crack. So the SiO obtained by this method 2 The cracking problem of the film is solved. The immersion time in the solution should not be too long, 3 hours is the best, if the time is too long, the film will be damaged. Such as figure 1 figure 2 As shown, the film after immersion in methylene blue is smooth, without cracks and basically non-porous structure. The removal efficiencies of glass substrates immersed in different concent...

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Abstract

The invention discloses a method for solving the problem of cracking of a silicon dioxide thin film by utilizing a methylene blue solution, and performing adsorption coloring by utilizing the porous characteristic thereof. The method comprises: adding water, absolute ethyl alcohol, mono-n-butylamine, and tetraethyl orthosilicate into a beaker in sequence, and controlling stirring and adding time, so as to obtain porous SiO2 sol; putting the sol into a spraying pot, and spraying the sol to a glass substrate at a certain spraying speed; after the sol is completely gelled, immersing the glass substrate into the methylene blue solution, performing adsorption for a certain time, and taking out the glass substrate, wherein in this case, a thin film on the glass substrate is not cracked, and meanwhile, a great number of methylene blue solutions in a solution are adsorbed, so as to color the glass substrate. According to the method, the sol-sprayed glass substrate is immersed into the methylene blue solution, so the problem of cracking in a gel drying process is solved; meanwhile, the aim of glass coloring by adsorbing organic dye is achieved. The method can be applied to industrial production on a large scale.

Description

technical field [0001] The invention relates to a method for absorbing and purifying an organic dye methylene blue solution while using the solution to solve the problems of silicon dioxide film cracking and glass coloring, and belongs to the fields of waste water treatment and glass production. Background technique [0002] As a method of deep processing of glass, surface coating can not only reduce the defects on the glass surface, but also improve the optical properties of the glass. The Si-O-Si chemical bond is used between the film and the substrate, and the adhesion is strong. SiO 2 Thin film coating on the glass surface has become one of the common means to improve the performance of the glass surface. [0003] Currently, preparing SiO 2 Commonly used methods for thin films include plasma / electronic etching, chemical vapor / electrochemical deposition, and magnetron sputtering. However, these coating preparation methods are usually complicated, with high preparation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/34C02F1/28C02F101/36C02F101/38
CPCC02F1/285C02F2101/308C02F2101/36C02F2101/38C03C17/34C03C2218/111
Inventor 刘璐刘世权
Owner 山东政和产业大数据技术研究院
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