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Graphene-containing aqueous antibacterial environment-friendly coating and preparation method thereof

An environmentally friendly coating, graphene technology, applied in epoxy resin coatings, antifouling/underwater coatings, and biocide-containing paints, etc. problems, to achieve the effect of degrading environmental pollutants and zero VOC emissions

Inactive Publication Date: 2018-12-07
唐山英太石墨烯科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although traditional antibacterial coatings have certain effects in antibacterial and antifouling, organic solvents are generally used as diluents, which not only pollute the environment but also limit the scope of use, and the pure antibacterial effect can no longer meet the needs of industry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of preparation method of graphene-containing water-based bacteriostatic environmental protection coating, carries out as follows:

[0033] (1) Preparation of graphene-based antibacterial fillers

[0034] Add silver nitrate solution to graphene oxide aqueous solution, then add reducing agent and stir, after ultrasonic dispersion is uniform, transfer the mixture to a hydrothermal reaction kettle and seal it, carry out hydrothermal reaction under the condition of 160°C, after cooling, filter and remove The precipitated product was washed with ion water, and then calcined to obtain a graphene-supported nano-silver composite material.

[0035] (2) premixed

[0036] Add 5wt% of graphene-supported nano-silver composite material, 2wt% of titanium dioxide, 8wt% of talcum powder, 15wt% of zinc oxide, and 2wt% of pearl powder in water glass in proportion, and fully stir evenly.

[0037] (3) sanding

[0038] The base material in step (2) is sanded by a sand mill to make i...

Embodiment 2

[0044] A kind of preparation method of graphene-containing water-based bacteriostatic environmental protection coating, carries out as follows:

[0045] (1) Preparation of graphene-based antibacterial fillers

[0046] Add cuproammonia solution to graphene oxide aqueous solution, then add reducing agent and stir, after ultrasonic dispersion is uniform, transfer the mixture to a hydrothermal reaction kettle to seal, carry out hydrothermal reaction under the condition of 180 ℃, after cooling, filter and remove The precipitated product was washed with ion water, and then calcined to obtain a graphene-supported copper oxide composite material.

[0047] (2) premixed

[0048] 10wt% graphene-loaded copper oxide composite material, 6wt% titanium dioxide, 2wt% talcum powder, 10wt% zinc oxide, and 2wt% light calcium carbonate were added in proportion to the water-based epoxy resin emulsion, and fully stirred evenly.

[0049] (3) sanding

[0050] The base material in step (2) is sanded...

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PUM

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Abstract

The invention discloses a grapheme-containing aqueous antibacterial environment-friendly coating and a preparation method thereof, and belongs to the field of waterborne coatings. The graphene-containing aqueous antibacterial environment-friendly coating comprises the following components in parts by weight: 20 to 70 parts of aqueous film-forming substance, 3 to 20 parts of graphene-based antibacterial filler, 1 to 10 parts of photocatalyst. 2 to 10 parts of pigment, 0.2 to 2 parts of auxiliary agent, and 5 to 15 parts of curing agent. The preparation method comprises the steps of: preparationof the graphene-based antibacterial filler, pre-mixing, sand milling, diluting and packaging. The graphene-containing aqueous antibacterial environment-friendly coating disclosed by the invention hasgood stability, fast drying time, excellent adhesion performance, obvious antibacterial and bactericidal effects, zero VOC emission, environmental friendliness, non-toxicity and convenience for construction.

Description

technical field [0001] The invention relates to a graphene-containing water-based antibacterial and environmentally friendly coating and a preparation method thereof, belonging to the technical field of water-based coatings. Background technique [0002] Coatings are important chemical building materials in modern industry. The research and development of functional coatings is of great significance for increasing the coatings market and expanding the application range of coatings. Microorganisms are widely distributed in the environment, and there are many kinds of damage to various materials. After microorganisms contaminate the surface of the coating, they will form plaques, which will cause the coating to lose its adhesion ability. In severe cases, it will cause the coating to fall off and directly affect the coating. The use of it even makes it lose its function. Therefore, the research and application of antibacterial coatings have received great attention. [0003] ...

Claims

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Application Information

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IPC IPC(8): C09D1/02C09D163/00C09D133/04C09D175/04C09D5/14C09D7/20
CPCC08K2003/2241C08K2003/2248C08K2003/2296C09D1/02C09D5/14C09D7/20C09D133/04C09D163/00C09D175/04C08K13/06C08K9/12C08K3/22
Inventor 高晓晔侯林艳耿晓欣吴洪鹏
Owner 唐山英太石墨烯科技股份有限公司
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