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Production method of glass substrate surface self-assembly polyelectrolyte-rare earth nanometer film

A technology of glass substrates and polyelectrolytes, which is applied in the preparation of nanocomposite films and self-assembled polyelectrolyte-rare earth nanofilms on the surface of glass substrates. Long heat treatment time and other problems, to achieve obvious anti-friction effect, dense film formation, uniform distribution effect

Inactive Publication Date: 2008-02-06
SHANGHAI JIAOTONG 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, and cannot assemble a multilayer film.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] First, the pretreatment of the glass substrate, the glass substrate is treated with a strong oxidant. Treatment method: place the glass substrate in V (98% concentrated sulfuric acid): V (30% H 2 o 2 )=1:1 solution at room temperature for 1 hour, then ultrasonic cleaning with deionized water for 20 minutes, and then immersing the substrate in V(H 2 O): V(H 2 o 2 ):V (25% concentrated ammonia water)=5:1:1 solution soaked for 1 hour, then ultrasonically cleaned with deionized water for 20 minutes, placed in a dust-proof device and dried in an oven. The drying temperature has no special requirements. First immerse the treated glass substrate in the positively charged polydiallyl dimethyl ammonium chloride solution for 15 minutes, take it out and rinse and dry it with a large amount of deionized water; then immerse it in the negatively charged polystyrene sulfonic acid Sodium solution for 15 minutes, take out and rinse with a large amount of deionized water and dry, rep...

Embodiment 2

[0022] First, the pretreatment of the glass substrate, the glass substrate is treated with a strong oxidant. Treatment method: place the glass substrate in V (98% concentrated sulfuric acid): V (30% H 2 o 2 )=1:1 solution at room temperature for 1 hour, then ultrasonic cleaning with deionized water for 20 minutes, and then immersing the substrate in V(H 2 O): V(H 2 o 2 ):V (25% concentrated ammonia water)=5:1:1 solution soaked for 1 hour, then ultrasonically cleaned with deionized water for 20 minutes, placed in a dust-proof device and dried in an oven. The drying temperature has no special requirements. First immerse the treated glass substrate in a positively charged polydiallyldimethylammonium chloride solution for 15 minutes, take it out and rinse and dry it with a large amount of deionized water; then immerse it in a negatively charged polystyrene sulfonic acid Sodium solution for 15 minutes, take out and rinse with a large amount of deionized water and dry, repeat th...

Embodiment 3

[0027] First, the pretreatment of the glass substrate, the glass substrate is treated with a strong oxidant. Treatment method: place the glass substrate in V (98% concentrated sulfuric acid): V (30% H 2 o 2 )=1:1 solution at room temperature for 1 hour, then ultrasonic cleaning with deionized water for 20 minutes, and then immersing the substrate in V(H 2 O): V(H 2 o 2 ):V (25% concentrated ammonia water)=5:1:1 solution soaked for 1 hour, then ultrasonically cleaned with deionized water for 20 minutes, placed in a dust-proof device and dried in an oven. The drying temperature has no special requirements. First immerse the treated glass substrate in a positively charged polydiallyldimethylammonium chloride solution for 15 minutes, take it out and rinse and dry it with a large amount of deionized water; then immerse it in a negatively charged polystyrene sulfonic acid Sodium solution for 15 minutes, take out and rinse with a large amount of deionized water and dry, repeat th...

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Abstract

The invention relates to a preparation method for self-assembly polyelectrolyte-nano rare earth film with anti-friction and antiwear function on glass substrate. Wherein, selecting the glass substrate with surface treated by strong oxidant as the substrate material; repeating and alternative dipping the substrate into the positive-electric polydiallyldimethyl ammonium chloride solution and negative-electric sodium polystyrene sulfonate solution to assemble multilayer polyelectrolyte film; dipping the substrate into the rare earth self-assembly solution contained ethanol, EDTA, ammonium chloride, urea, and nitric acid to obtain the final product. This invention is simple.

Description

technical field [0001] The invention relates to a method for preparing a nanocomposite film, in particular to a method for preparing a self-assembled polyelectrolyte-rare earth nano 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. Because micro-machines are affected by size effects, micro-friction and wear and nano-film lubrication It has become a key problem, which can be solved by preparing self-assembled nano-films by self-assembly method. A certain amount of water can be adsorbed on the surface of the pretreated glass substrate, and this kind of water combines with Si in the form of OH- 4+ Combined to form silane group ≡SiOH or silicic acid H 2 SiO 3 . The isoelectric point of the substra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/00C03C17/34
Inventor 程先华顾勤林白涛蒋喆
Owner SHANGHAI JIAOTONG UNIV