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Method for solving problems of cracking of silicon dioxide thin film and glass coloring by utilizing methylene blue solution

A technology of silica and methylene blue, applied in chemical instruments and methods, water/sludge/sewage treatment, coating, etc., can solve the problems of poor improvement, complex process, etc., and achieve stress reduction and transparency Good performance, avoid cracking effect

Active Publication Date: 2017-08-08
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 problems of cracking of silicon dioxide thin film and glass coloring by utilizing methylene blue solution
  • Method for solving problems of cracking of silicon dioxide thin film and glass coloring by utilizing methylene blue solution
  • Method for solving problems of cracking of silicon dioxide thin film and glass coloring by utilizing 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 fully mix, then add 2.23ml of 1-n-butylamine to the beaker, stir for 30 minutes, and add it to the beaker after it is evenly mixed 4.46ml of tetraethylorthosilicate, stir and react for about 5min at room temperature and stand for 1-5min to form a sol.

Embodiment 2

[0028] Hang the cleaned glass substrate on the support, according to the SiO prepared in Example 1 2 The sol is put into the watering can before it is gelled, and sprayed on the glass substrate. The distance between the nozzle and the glass substrate is controlled at 3cm, and the spray is continuously sprayed for 3 times to obtain SiO-plated 2 Thin film glass substrate.

Embodiment 3

[0030] In Example 2 will be plated with SiO 2 The glass substrate of the thin film is allowed to stand in the air for 1-5 minutes. When the gel coat is not completely dried, immerse the glass substrate in the methylene blue solution of different concentration, and measure the absorbance of the solution every half an hour. After that, immersing it in the methylene blue solution works best. If the time is too short, the gel will not be completely gelled, and if the time is too long, the gel will dry and crack. So the SiO obtained by this method 2 The problem of film cracking is solved. The immersion time in the solution is not easy to be too long, 3h is the best, if the time is too long, the film will be damaged. Such as figure 1 figure 2 As shown, the film immersed in methylene blue is smooth, free of cracks, and basically non-porous structure. The removal efficiency of glass substrates immersed in different concentrations of methylene blue solution is as follows image 3 As ...

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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 adsorbing 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 field of wastewater treatment and glass production. Background technique [0002] As a method of glass deep processing, surface coating can not only reduce the defects on the glass surface, but also improve the optical properties of the glass. The film and the substrate are bonded by Si-O-Si chemical bonds, and the adhesion is strong. SiO 2 Film coating on the glass surface has become one of the common methods to improve the performance of the glass surface. [0003] Currently, SiO is prepared 2 Commonly used methods for thin films include plasma / electron etching treatment, chemical vapor / electrochemical deposition, magnetron sputtering and so on. However, the preparation methods of these coatings are usually more complicated, the preparatio...

Claims

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Application Information

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Patent Type & Authority Applications(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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