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Transparent hydrophobic film sol, preparation thereof and method for plating hydrophobic film

A hydrophobic film, transparent technology, applied in the pretreatment surface, the device for coating liquid on the surface, the coating, etc., can solve the problems of limited service life, difficult to control, complicated process, etc., to increase the service life and achieve remarkable effect. Effect

Inactive Publication Date: 2010-08-11
HUBEI JIUZHIYANG INFRARED SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of the hydrophobic film produced by the physical vapor deposition method are: the film layer is thin (thickness less than 20nm), the hydrophobic layer is relatively soft, in addition, the anti-ultraviolet aging performance is poor, and it is not suitable for long-term use in the field
The disadvantages of chemical vapor deposition method are: high equipment cost, complex exhaust gas treatment system, which is not conducive to popularization and application
The disadvantages of the existing sol-gel method are: the hydrophobic film layer is mainly reserved on the outermost layer of the silica film layer, the service life is very limited, and the process is complicated and difficult to control

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A. Prepare materials according to the formula of transparent hydrophobic film sol:

[0046] The transparent hydrophobic film sol component and volume ratio are:

[0047] Tetraethyl orthosilicate: absolute ethanol: n-butanol: isopropanol: water: active substance

[0048] =8~10: 35~50: 1.5~4: 5~8: 0.01~0.35: 0.03~2;

[0049] The active substance in this example is organosilane, specifically, organosilane is methyltriethoxysilane, 3-(heptafluoroisopropoxy)propyl trichlorosilane and γ-glycidyl etheroxypropyl trimethyl Silane, prepare materials according to the following formula respectively, the transparent hydrophobic membrane sol composition material is measured in liters, is respectively: tetraethyl orthosilicate: dehydrated alcohol: n-butanol: isopropanol: water: methyltriethoxysilane: 3-(Heptafluoroisopropoxy)propyltrichlorosilane:γ-glycidyloxypropyltrimethylsilane=8:45:3.5:6.5:0.15:0.5:0.6:0.22.

[0050] B. After fully mixing the active substance organosilane and i...

Embodiment 2

[0056] Different from Example 1, the described sol component and volume ratio are:

[0057] Tetraethyl orthosilicate: absolute ethanol: n-butanol: isopropanol: water: organosilane = 8.5-10: 35-45: 2-4: 6-8: 0.01-0.3: 0.03-1.5.

Embodiment 3

[0059] Different from embodiment 1,2, described sol component and volume ratio are:

[0060] Tetraethyl orthosilicate: absolute ethanol: n-butanol: isopropanol: water: methyltriethoxysilane = 8: 45: 3.5: 6.5: 0.15: 1.5.

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Abstract

The invention relates to a transparent hydrophobic membrane sol, a preparation method thereof and a method for plating a hydrophobic membrane which belong to the coating technical field and are particularly applicable to plating the transparent hydrophobic membrane on the surface of a substance containing silicate ingredients. The components of the sol comprise: tetraethyl silicate, anhydrous ethanol, n-butyl alcohol, isopropanol, water and active substances. The prepration method of the sol comprises the following steps: the material prepration is carried out according to a formula, active solution is mixed for standby according to the formula, mixed solution is synthesized according to the formula, the transparent hydrophobic membrane sol at the initial state is prepared, and the transparent hydrophobic membrane sol at the initial state is aged. The plating of the hydrophobic membrane comprises the following steps of: the plating of the transparent hydrophobic membrane, the drying of the sol state transparent hydrophobic membrane and the curing of the dried transparent hydrophobic membrane. The invention has the advantages that: the transparent hydrophobic membrane sol has good hydrophobic property, high strength, strong anti-ultraviolet aging capability, long service life and low cost; the preparation method is easy to be controlled and has high yield; and the plating method has strong adaptability, easy operation and easy guarantee of the quality of a membrane layer.

Description

Technical field: [0001] The invention relates to a transparent hydrophobic film sol, a preparation method thereof, and a method for coating a hydrophobic film, belonging to the technical field of coatings, and is particularly suitable for plating a transparent hydrophobic film on the surface of glass, ceramics and other materials containing silicate components. Background technique: [0002] Transparent hydrophobic film has great potential on the surface of objects, especially automobile windshields, optoelectronic instruments used in the field, electronic display screens, spectacle lenses, solar cell substrates, glass curtain walls, greenhouse glass, high-voltage insulators, cultural relics protection, etc. Application requirements. [0003] At present, the methods for preparing transparent hydrophobic films mainly include sol-gel method, chemical vapor deposition method and physical vapor deposition method. The physical vapor deposition method mainly evaporates fluorine-c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/00C09D5/00B05D7/24B05D3/02C03C17/30C04B41/84
Inventor 李钱陶熊长新姚细林朱谧杨放何光宗
Owner HUBEI JIUZHIYANG INFRARED SYST CO LTD
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