Method for preparing TiO2 compound film on surface of glass substrate

A glass substrate and composite thin film technology, which is applied in the field of preparing TiO2 composite thin films on the surface of glass substrates, can solve the problems of long film forming cycle and achieve the effects of short film forming cycle, simple process and obvious effect

Inactive Publication Date: 2009-04-22
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 formation cycle too long, and does not involve specific methods in the process of substrate processing, and the method is to prepare an organic self-assembled film without involving TiO 2 Improvement and Research on Thin Film Properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] First, the glass substrate is pretreated by hydroxylation. The treatment method is: immerse the glass substrate in a volume ratio of H 2 SO 4 :H 2 o 2 =70:30 (Pirahan) solution, treated at 90°C for 1 hour, then ultrasonically cleaned with a large amount of deionized water for 20 minutes, placed in a dust-proof device and dried in an oven, the treated glass substrate was immersed in mercapto After standing in the silane 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 int...

Embodiment 2

[0027] First, the hydroxylation pretreatment of the glass substrate: immerse the glass substrate in the 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 ...

Embodiment 3

[0033] 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.

[0034] TiO at room temperature 2 Add ...

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PUM

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Abstract

The invention relates to a method for preparing a TiO2 composite film on a surface of a glass substrate. The method comprises the following steps: soaking the glass substrate in a solution containing H2SO4 and H2O2 according to volume ratio of 70 to 30, treating the glass substrate for 1 hour at a temperature of 90 DEG C, after cleaning and drying the glass substrate, soaking the glass substrate in a benzene solution containing hydrosulfuryl silane the concentration of which is between 0.1 and 2.0 mmol per liter, standing for 6 to 8 hours, taking out and washing the glass substrate, drying the glass substrate by blowing nitrogen, placing the glass substrate in 30-60 mass percent nitric acid, reacting for 1 hour at a temperature of between 50 and 80 DEG C, taking out and washing the glass substrate, and obtaining the glass substrate the surface of which is adhered with a sulfonic silane film; and placing the substrate in TiO2 suspension, standing for 4 to 20 hours at a temperature of between 20 and 80 DEG C; and taking out and washing the glass substrate by a large amount of deionized water, drying the washed glass substrate by blowing the nitrogen, and obtaining the glass substrate the surface of which is deposited with a modified TiO2 composite film. The method has short film forming period, can reduce frictional coefficient from 0.8 to 0.1 without a film, and has quite remarkable antifriction function.

Description

technical field [0001] The invention relates to a method for preparing TiO on the surface of a glass substrate 2 Composite film method. 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] TiO 2 It is the most typical one-dimensional nanomaterial with many excellent properties due to its unique structure. TiO 2 It has super strong mechanical properties and good adsorption properties, so it has attracted great attention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/23
Inventor 安双利
Owner SHANGHAI SECOND POLYTECHNIC UNIVERSITY
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