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Graphene coating and preparation method thereof

A graphene and graphene dispersion technology, applied in conductive coatings, epoxy resin coatings, polyurea/polyurethane coatings, etc. Strong cleaning ability, good thermal insulation effect, strong anti-scratch effect

Inactive Publication Date: 2018-01-26
上海谷奇核孔膜科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, people who work and study in an air-conditioned environment for a long time, because the space is relatively closed and the air is not circulated, the pathogenic microorganisms and harmful gases will continue to breed, and due to the large temperature difference between indoor and outdoor, the body will not adapt well, and will experience nasal congestion and dizziness , sneezing, tinnitus, fatigue, memory loss, sore limbs, muscles and joints, etc., often have some symptoms of skin allergies, such as tight and dry skin, easy allergies, skin deterioration, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment one: the formula of graphene coating of the present invention by parts by weight is:

[0024] Water-based polyurethane emulsion: 20-50 parts;

[0025] Graphene dispersion: 3 to 15 parts;

[0026] Silicone surfactant: 0.01 to 0.4 parts;

[0027] Deionized water: 5-20 parts.

[0028] The preparation method is:

[0029] (1) Put 20-50 parts of water-based polyurethane emulsion, 3-15 parts of graphene dispersion, 0.01-0.4 parts of silicone surfactant, and 5-20 parts of deionized water at 200-300 rpm according to the order of the formula Gradually mixed together in a stirring state;

[0030] (2) Stir the emulsion obtained in step (1) at 1000 rpm for 10 to 20 minutes, stir until the emulsion is completely mixed, filter it once with a 300-mesh mesh cloth, and place it for more than 4 hours;

[0031] (3) Wait until the foam is completely defoamed.

[0032] Its technical indicators are as follows:

[0033] Solid content: 8-20%;

[0034] Viscosity: 200~3000;

...

Embodiment 2

[0042] Embodiment two: the formula of graphene coating of the present invention by weight is:

[0043] Water-based acrylic emulsion: 25-45 parts;

[0044] Graphene dispersion: 5-10 parts;

[0045] Silicone surfactant: 0.2 to 0.4 parts;

[0046] Deionized water: 5 to 15 parts.

[0047] The preparation method is:

[0048] (1) Stir 25-45 parts of water-based acrylic emulsion, 5-10 parts of graphene dispersion, 0.2-0.4 parts of silicone surfactant, and 5-15 parts of deionized water at 200-300 rpm according to the order of ingredients State gradually mixed together;

[0049] (2) Stir the emulsion obtained in step (1) at 1000 rpm for 10 to 20 minutes, stir until the emulsion is completely mixed, filter it once with a 300-mesh mesh cloth, and place it for more than 4 hours;

[0050] (3) Wait until the foam is completely defoamed.

[0051] Its technical indicators are as follows:

[0052] Solid content: 10-28%;

[0053] Viscosity: 500~2000;

[0054] Glass transition temperatu...

Embodiment 3

[0061] Embodiment three: the formula of graphene coating of the present invention by weight is:

[0062] Pure acrylic emulsion: 30-40 parts;

[0063] Graphene dispersion: 3 to 8 parts;

[0064] Fluorine surfactant: 0.01-0.03 parts;

[0065] Deionized water: 5 to 15 parts.

[0066] The preparation method is:

[0067] (1) Stirring 30-40 parts of pure acrylic emulsion, 3-8 parts of graphene dispersion, 0.01-0.03 parts of fluorosurfactant, and 5-15 parts of deionized water at 200-300 rpm gradually mixed together;

[0068](2) Stir the emulsion obtained in step (1) at 1000 rpm for 10 to 20 minutes, stir until the emulsion is completely mixed, filter it once with a 300-mesh mesh cloth, and place it for more than 4 hours;

[0069] (3) Wait until the foam is completely defoamed.

[0070] Its technical indicators are as follows:

[0071] Solid content: 10-25%;

[0072] Viscosity: 500~2000;

[0073] Glass transition temperature: -40~0℃;

[0074] Index after film formation:

[...

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Abstract

The invention discloses a graphene coating. The graphene coating is prepared from components in parts by weight in a formula as follows: 20-50 parts of an adhesive, 2-15 parts of a graphene dispersionliquid with the solid content being 0.3%-8%, 0.01-0.5 parts of a surfactant and 5-20 parts of deionized water. According to the preparation method, the components are stirred and mixed together in proportion according to the formula; the mixed components are stirred until an emulsion is completely and uniformly mixed, and the emulsion is filtered by screen cloth once and left to stand for 4 h orlonger; after foam is completely defoamed, the coating can be subjected to uniform application on a machine. A film formed after application of the graphene coating has the characteristics of very high hardness, very low resistance, high heat insulation property and scratch resistance, good self-cleaning capability and higher heat insulation effect.

Description

technical field [0001] The present invention relates to a kind of paint, especially a kind of breathable glass material or other materials that are used for processing ventilation, dustproof, thermal insulation, windproof, rainproof, anti-high-rise fall, surface hardening, antistatic, heat insulation, etc. Functionally treated graphene coating and preparation method thereof. Background technique [0002] As we all know, PM2.5 and outdoor particulate matter are air pollution particles with a particle size of micron. Based on the screening principle, when we use screens to block outdoor particles, the mesh of the window screen can effectively block particles only when the mesh is smaller than the micron level. This is an effective method for particle protection using physical methods. But we know that outdoor particle protection is only one of the purposes. We spend more time in the indoor environment. Whether it is spring, summer, autumn and winter, whether the air condition...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D133/00C09D133/04C09D163/00C09D7/61C09D5/24
Inventor 陈武吕晓莉
Owner 上海谷奇核孔膜科技股份有限公司
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