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Method for preparing rare earth modified graphene ceramic composite film on glass substrate

A glass substrate and ceramic composite technology, which is applied in the direction of ceramic layered products, chemical instruments and methods, glass/slag layered products, etc., can solve the problem that the anti-friction performance of the film is not involved, and achieve the improvement of mechanical properties and tribology The effect of properties, smooth surface and simple preparation process

Inactive Publication Date: 2012-10-10
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The Chinese patent with the application number 94112148.8 discloses a method of preparing alumina ceramic membrane by sol-gel technology. Although the membrane produced by this method has good gas permeability, it does not involve the antifriction performance of the membrane.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Prepare a ceramic composite film doped with rare earth element-modified graphene on a glass substrate, and the specific steps are:

[0028] (1) Perform hydroxylation pretreatment on the surface of the glass substrate: immerse the glass substrate in Pirahan solution (98% H with a volume ratio of 70:30 2 SO 4 solution and 30% H 2 o 2 Solution composition), let stand at room temperature for 30 minutes, rinse with a large amount of deionized water, place in a dust-proof device made of stainless steel to prevent dust from contaminating samples, and dry in an oven at 100°C for 1 hour. The hydroxylation of the glass substrate treated under the above conditions is very complete and the glass substrate is very flat and not corroded.

[0029] (2) Dissolve butyl titanate in ethanol, the molar ratio of ethanol to butyl titanate is 3:1, add diethanolamine as a chelating agent, the molar ratio of diethanolamine to butyl titanate is 1:1, room temperature Stir at low temperature fo...

Embodiment 2

[0035] Prepare a ceramic composite film doped with rare earth element-modified graphene on a glass substrate, and the specific steps are:

[0036] (1) Perform hydroxylation pretreatment on the surface of the glass substrate: immerse the glass substrate in Pirahan solution (98% H with a volume ratio of 70:30 2 SO 4 solution and 30% H 2 o 2 Solution composition), let stand at room temperature for 30 minutes, rinse with a large amount of deionized water, place in a dust-proof device made of stainless steel to prevent dust from contaminating samples, and dry in an oven at 100°C for 1 hour. The hydroxylation of the glass substrate treated under the above conditions is very complete and the glass substrate is very flat and not corroded.

[0037](2) Dissolve butyl titanate in ethanol, the molar ratio of ethanol to butyl titanate is 6:1, add diethanolamine as a chelating agent, the molar ratio of diethanolamine to butyl titanate is 1:1, room temperature Stir for 10 hours to mix ev...

Embodiment 3

[0043] Prepare a ceramic composite film doped with rare earth element-modified graphene on a glass substrate, and the specific steps are:

[0044] (1) Perform hydroxylation pretreatment on the surface of the glass substrate: immerse the glass substrate in Pirahan solution (98% H with a volume ratio of 70:30 2 SO 4 solution and 30% H 2 o 2 Solution composition), let stand at room temperature for 30 minutes, rinse with a large amount of deionized water, place in a dust-proof device made of stainless steel to prevent dust from contaminating samples, and dry in an oven at (120)°C for (0.5) h . The hydroxylation of the glass substrate treated under the above conditions is very complete and the glass substrate is very flat and not corroded.

[0045] (2) Dissolve butyl titanate in ethanol, the molar ratio of ethanol to butyl titanate is 8:1, add diethanolamine as a chelating agent, the molar ratio of diethanolamine to butyl titanate is 1:1, room temperature Stir for 10 hours to ...

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Abstract

The invention relates to a method for preparing a rare earth modified graphene ceramic composite film on a glass substrate. The method includes: (1) subjecting the surface of the glass substrate to hydroxylation pretreatment to obtain a treated glass substrate; (2) preparing rare earth sol solution and placing graphene into the obtained rare earth sol solution for treatment for 4-10h to obtain rare earth modified graphene sol; (3) immersing the treated glass substrate into the rare earth modified graphene sol, standing, upwardly lifting the glass substrate out of the sol, and drying; and (4) preserving the glass substrate obtained at the step (3) at 80-120 DEG C for 30-90min, heating to 600-800 DEG C, preserving heat for 1-5h and naturally cooling to the room temperature. The method is simple in preparation process, low in cost, free of environment pollution and fine in film forming. The composite ceramic film prepared by the method is uniform and compact and has excellent characteristics of friction reduction and abrasion resistance.

Description

technical field [0001] The invention belongs to the field of preparation of ceramic composite films, in particular to a method for preparing rare earth-modified graphene ceramic composite films on a glass substrate. Background technique [0002] Micro-electromechanical system (MEMS) refers to the integration of micro-structured sensors, micro-actuators and signal processing and control circuits to form an intelligent micro-device or micro-system with information acquisition, processing and execution functions. The processing size of the whole system is on the order of microns, and the manufacturing materials are mostly single crystal or polycrystalline silicon. Micromachines have the characteristics of small size, light weight, low energy consumption, high integration and high degree of intelligence, and have broad application prospects in biomedicine, aerospace, military, and industrial and agricultural fields, and are widely accepted by the scientific and industrial circle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/624C04B35/52C03C17/22B32B17/06B32B18/00
Inventor 白涛朱世根欧阳辰鑫瞿海霞
Owner DONGHUA UNIV
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