Method for producing bismuth vanadate compound film on glass substrate surface

A glass substrate and composite film technology, which is applied in the field of film preparation, can solve the problems of long film formation period and the like, and achieve the effects of short preparation period, obvious effect and good anti-wear performance.

Inactive Publication Date: 2009-08-19
SHANGHAI SECOND POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method requires 24 to 96 hours to prepare the precursor solution in the process of preparing the self-assembled film, which makes the entire film forming cycle t

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] First, the glass substrate is pretreated by hydroxylation. The treatment method: the glass substrate is immersed in Pirahan solution (H 2 SO 4 :H 2 o 2 =70:30, V / V), treated at 90°C for 1 hour, then ultrasonically cleaned with a large amount of deionized water for 20 minutes, dried in an oven in a dust-proof device, and immersed the treated glass substrate in Stand in the mercaptosilane solution for 6 hours, the molar concentration of the components of the mercaptosilane solution is: 0.2 mmol / L of 3-mercaptopropylmethyldimethoxysilane, and the solvent is benzene solution. After taking it out, wash it with chloroform, acetone, and deionized water respectively to remove the organic molecules physically adsorbed on the surface, then dry it with nitrogen, place it in nitric acid with a weight concentration of 30%, and take it out after reacting at 80°C for 1 hour. Rinse with ion water, so that the terminal mercapto groups are oxidized into sulfonic acid groups in situ, a...

Embodiment 2

[0026] First, the hydroxylation pretreatment of the glass substrate: immerse the glass substrate in Pirahan solution, treat it at 90°C for 1 hour, then ultrasonically clean it with a large amount of deionized water for 20 minutes, put it in a dust-proof device and dry it in an oven , immerse the treated glass substrate in the prepared mercaptosilane solution, and let it stand for 7 hours. The molar concentration of the components of the mercaptosilane solution is: 1.0mmol / L of 3-mercaptopropylmethyldimethoxysilane, and the solvent It is a benzene solution; after taking it out, wash it with chloroform, acetone, and deionized water to remove the organic matter physically adsorbed on the surface, blow it dry with nitrogen, place it in nitric acid with a mass concentration of 50%, and react at 65°C for 1 hour. Take it out with a large amount of Rinse with deionized water, so that the terminal mercapto groups are oxidized into sulfonic acid groups in situ, and a glass substrate with...

Embodiment 3

[0032] First, the hydroxylation pretreatment of the glass substrate: immerse the glass substrate in Pirahan solution, treat it at 90°C for 1 hour, then ultrasonically clean it with a large amount of deionized water for 20 minutes, put it in a dust-proof device and dry it in an oven , immerse the treated glass substrate in the prepared mercaptosilane, let it stand for 8 hours, the molar concentration of the components of the mercaptosilane solution is: 2.0mmol / L of 3-mercaptopropyltrimethoxysilane, and the solvent is benzene solution; After taking it out, wash it with chloroform, acetone, and deionized water respectively, blow it dry with nitrogen, place it in nitric acid with a mass concentration of 60%, and react at 50°C for 1 hour, take it out and wash it with a large amount of deionized water, so that the terminal mercapto The sulfonic acid group is oxidized to obtain a glass substrate with a sulfonic acid silane film on the surface.

[0033] Put bismuth vanadate at 0.2 mg / ...

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PUM

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Abstract

The invention discloses a method for preparing a bismuth vanadate composite film on the surface of a glass substrate, which comprises the following steps that: a sulfonic silane film is prepared on the surface of a hydroxylated glass substrate by a self-assembly method, then the glass substrate is placed into a N, N-dimethylformamide bismuth vanadate dispersion liquid, and bismuth vanadate is deposited on the surface of the glass substrate. Firstly, the glass substrate is dipped into a Pirahan solution, treated for 1 hour at the temperature of 90 DEG C, cleaned and dried, then dipped into a mercapto silane solution, kept stand for 6 to 8 hours, then taken out for washing, blow-dried by nitrogen, and then placed into a nitric acid solution to obtain the glass substrate of which the surface is attached with the sulfonic silane film; and then the glass substrate is placed into a bismuth vanadate suspension, is kept stand for 4 to 20 hours at a temperature of between 20 and 80 DEG C, is taken out to be washed by a large amount of deionized water, and is blow-dried by nitrogen after the washing, thus the glass substrate of which the surface is deposited with a modified bismuth vanadate composite film is obtained. The method can reduce the friction coefficient from 0.8 (no film exists) to 0.1, and has obvious antifriction effect.

Description

technical field [0001] The invention relates to a method for preparing a bismuth vanadate composite thin film on the surface of a glass substrate. It belongs to the technical field of film preparation. Background technique [0002] The development of modern mechanical science shows the trend of mechatronics, ultra-precision and miniaturization. The gap between friction pairs of many high-tech devices is often at the nanometer level. Due to the influence of size effects in micro-machines, micro-friction and wear and nano-film Lubrication has become a key issue, which can be solved by preparing self-assembled nano-films by self-assembly method. Compared with other thin-film preparation technologies, self-assembled thin-film technology is operable and adaptable, and has broad application prospects. [0003] Bismuth vanadate is the most typical one-dimensional nanomaterial, which has many excellent properties due to its unique structure. Bismuth vanadate has super strong mech...

Claims

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Application Information

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IPC IPC(8): C03C17/22
Inventor 安双利
Owner SHANGHAI SECOND POLYTECHNIC UNIVERSITY
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