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Method for preparing sulfhydryl silane-rare earth self-lubricating composite film on glass substrate surface

A technology of glass substrate and mercaptosilane, which is applied in the field of thin film preparation, can solve the problems of long heat treatment time and cumbersome process conditions of self-assembled thin films, and achieve the effects of good film formation, low cost and anti-friction effect

Inactive Publication Date: 2006-02-22
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process conditions of the self-assembled film prepared by this method are relatively cumbersome, and the heat treatment time is also long, and the film prepared by this method is an organic film, not a rare earth composite film

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] First, the glass substrate is pretreated, and the glass substrate is treated with hydroxylation. Treatment method: use Pirahan solution (H 2 SO 4 :H 2 o 2 =70:30, V / V) at 90°C for 1 hour, then ultrasonically cleaned with a large amount of deionized water for 15 minutes, placed in a dust-proof device and dried in an oven, the treated glass substrate was immersed in the prepared In the mercaptosilane solution, let it stand for 8 hours, the molar concentration of the components of the mercaptosilane solution is: 3-mercaptopropylmethyldimethoxysilane 0.2mmol / L, and the solvent is benzene solution; after taking it out, use chloroform, acetone, After rinsing with deionized water, blow dry with nitrogen to obtain a glass substrate with a mercaptosilane film mounted on the surface.

[0017] Preparation of sol solution: The molar ratio of each component in the sol solution is: titanate 1, ethanol 5, diethanolamine 1, ethanol aqueous solution 2 prepared from water and absolut...

Embodiment 2

[0023] First, the glass substrate is pretreated, and the glass substrate is treated with hydroxylation. Treatment method: treat with Pirahan solution at 90°C for 1 hour, then ultrasonically clean 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 , standing for 6 hours, the molar concentration of the components of the mercaptosilane solution is: 3-mercaptopropylmethyldimethoxysilane 1.0mmol / L, and the solvent is benzene solution; after taking it out, use chloroform, acetone, deionized water After rinsing, blow dry with nitrogen. A glass substrate with a mercaptosilane thin film assembled on the surface was obtained.

[0024] Preparation of sol solution: The molar ratio of each component in the sol solution is: titanate 1, ethanol 4, diethanolamine 1.5, ethanol aqueous solution 1.5 prepared from water and absolute ethanol with a volume ratio of 1...

Embodiment 3

[0030] First, the glass substrate is pretreated, and the glass substrate is treated with hydroxylation. Treatment method: treat with Pirahan solution at 90°C for 1 hour, then ultrasonically clean with a large amount of deionized water, put it in a dust-proof device and dry it in an oven, immerse the treated glass substrate in the prepared mercaptosilane solution, Stand still for 8 hours, the molar concentration of the components of the mercaptosilane solution is: 3-mercaptopropyltrimethoxysilane 2.0mmol / L, and the solvent is benzene solution; after taking it out, wash it with chloroform, acetone, and deionized water respectively, and then use nitrogen gas blow dry. A glass substrate with a mercaptosilane thin film assembled on the surface was obtained.

[0031] Preparation of sol solution: The molar ratio of each component in the sol solution is: titanate 1, ethanol 6, diethanolamine 1.25, ethanol aqueous solution 1 prepared from water and absolute ethanol with a volume ratio...

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Abstract

The method to prepare sulfo radical silicane-rare earth self-lubricating composite thin membrane on glass substrate surface comprises, preparing sulfo radical silicane thin membrane with self-assemblt method and then rare-earth-element thin membrane with sol-gel method on hydroxylated substrate surface; dipping the substrate into Pirahan solution for one hour at 90Deg temperature; after clearing and drying, dipping it into mercaptoalkyl solution for 6-8h; clearing, blowing with nitrogen and putting into peptization solution composed of rare earth compounds, titanate, alcohol water solution, diethyl ethanolamine and dimethyl formamide, drawing, drying, or repeating said operation to prepare multilayer thin membrane; putting sample in muffle furnace, heating slowly to 500Deg; then, cooling naturally to room temperature and obtain the product. This invention can decrease thefriction coefficienct from 0.8 to 0.1.

Description

technical field [0001] The invention relates to a method for preparing a composite film, in particular to a method for preparing a mercaptosilane-rare earth self-lubricating composite 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 self-assembly method or by preparing thin films by sol-gel method. However, the adjustment range of the film thickness of the self-assembled monolayer film is limited, and the sol-gel method can be used to prepare a relatively thick nano-scale film through multiple coating processes. Therefore, the composite film pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/34C03C17/30
Inventor 程先华白涛蒋喆
Owner SHANGHAI JIAO TONG UNIV
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