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Anti-bacterial water-based paint and preparation method thereof

A water-based paint and coating technology, which is applied to the preparation of antibacterial water-based paints and the field of antibacterial water-based paints, can solve the problems of restricting the promotion and use of inorganic antibacterial agents, the problem of antibacterial stability, and the reduction of antibacterial properties, and achieve long-term antibacterial effect. , the effect of stabilizing chemical properties and prolonging service life

Inactive Publication Date: 2012-10-03
ANHUI JINDUN PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the toxicity or high cost of some metal ions with antibacterial ability, the currently widely used antibacterial ions are limited to silver and zinc. Among them, silver ions have the strongest antibacterial ability. From the perspective of antibacterial ability alone, it is an inorganic antibacterial agent. The best choice, and the toxicity of silver is far less than that of zinc, so it is the best choice for inorganic antibacterial agents
There are also some problems with inorganic antibacterial agents: the first is the problem of antibacterial stability
Because most of the inorganic antibacterial agents contain silver ions, they are easily transformed into brown silver oxide or reduced to black elemental silver by ultraviolet catalysis. The discoloration not only reduces their antibacterial properties, but also limits their application to white or light-colored paints.
Secondly, the high cost of using silver in large quantities restricts its application in a wider range
The above two technical problems have seriously restricted the promotion and use of inorganic antibacterial agents, becoming the biggest problem in this industry

Method used

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  • Anti-bacterial water-based paint and preparation method thereof
  • Anti-bacterial water-based paint and preparation method thereof
  • Anti-bacterial water-based paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] An antibacterial water-based paint is made of 0.2 parts by weight of nanometer silver antibacterial agent; 8 parts by weight of nanometer zinc oxide; 26 parts by weight of acrylic resin dispersion; and 18 parts by weight of adhesive resin or plasticizer. The specific preparation method is as follows: mix and stir deionized water, antibacterial agent, wetting agent, dispersant, and defoamer evenly, add nanomaterials, and disperse evenly to obtain an aqueous dispersion; add the obtained aqueous dispersion to the stirred emulsion or aqueous In the resin dispersion, add adhesion resin or plasticizer, wetting agent, leveling agent, thickener, anti-sedimentation agent, pH regulator and stir to disperse evenly; add pigment or colorant; replenish water to make antibacterial water-based coating.

[0047] Wherein the preparation method of the nano-silver antibacterial agent is as follows: first configure the nano-silver mother liquor, and its ratio by weight is: nano-silver collo...

Embodiment 2

[0051] An antibacterial water-based paint is made of 11 parts by weight of nano silver antibacterial agent; 22 parts by weight of nano titanium dioxide; 23 parts by weight of polyester resin dispersion; 10 parts by weight of adhesion resin or plasticizer. Its preparation method is with embodiment 1.

[0052] Wherein the preparation method of the nano-silver antibacterial agent is as follows: first configure the nano-silver mother liquor, and its ratio by weight is: nano-silver colloid 42; pure water 26; alcohol solvent 22; coating agent 9; dispersant 0.3.

[0053] Then use the above-mentioned nano-silver mother liquor to configure the nano-silver antibacterial agent, and the ratio according to parts by weight is: nano-silver mother liquor 25; solvent 77; stabilizer 8; dispersant 1.4.

[0054] The concrete preparation method of nano-silver antibacterial agent is with embodiment 1.

Embodiment 3

[0056] A kind of antibacterial water-based paint, by the nano-silver antibacterial agent of 7 weight parts; The nano-scale silver powder / nanometer titanium dioxide of 33 weight parts; The polyester resin dispersion of 64 weight parts; become. Its preparation method is with embodiment 1.

[0057] Wherein the preparation method of the nano-silver antibacterial agent is as follows: first configure the nano-silver mother liquor, and its ratio by weight is: nano-silver colloid 27; pure water 21; alcohol solvent 45; coating agent 33; dispersant 3.2.

[0058] Then, the nano-silver mother liquor is used to configure the nano-silver antibacterial agent, and the ratio according to parts by weight is: nano-silver mother liquor 17; solvent 60; stabilizer 17; dispersant 0.8.

[0059] The concrete preparation method of nano-silver antibacterial agent is with embodiment 1.

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Abstract

The invention relates to anti-bacterial water-based paint and a preparation method thereof. The paint comprises the following components in parts by weight: 0.2-11 parts of anti-bacterial agent, 8-33 parts of nano material, 23-64 parts of water-based resin dispersoid and 0.75-18 parts of adhesive resin or plasticizer. The preparation method comprises the following steps: firstly preparing a nano silver anti-bacterial agent; mixing deionized water, the anti-bacterial agent, a wetting agent, a dispersing agent and a defoaming agent and uniformly mixing, adding the nano material, uniformly dispersing to obtain the water-based dispersoid; adding the obtained water-based dispersoid to the mixed emulsion or water-based resin dispersoid, then adding the adhesive resin or plasticizer and various conventional assistants, stirring and dispersing evenly; adding pigments or colorant; and supplementing water to obtain the anti-bacterial water-based paint. The long-acting broad-spectrum antibacterial water-based paint has high fungicidal efficiency (more than 99%) on escherichia coli, staphylococcus aureus, black varietas of bacillus subtilis and the like and can reduce the high concentrate of organic matters of formaldehyde to the range of specified concentration index.

Description

technical field [0001] The invention belongs to the technical field of water-based paint, in particular to an antibacterial water-based paint. The invention also relates to a preparation method of the antibacterial water-based paint. Background technique [0002] With the improvement of global environmental protection awareness, people's demand for functional environmental protection coatings is becoming more and more urgent. The use of traditional solvent paints will cause harm to human health and the environment. Especially when used indoors, toxic organic solvents such as benzene continue to volatilize for a long time, directly endangering human health and life safety. For example, volatile organic compounds can cause headaches, nausea, sore throat, asthma and other symptoms. Free isocyanate is an inhaled, accumulative, highly toxic compound that can cause bronchitis, asthma, and even suffocation. Benzene is a highly toxic carcinogen, which mainly affects the hematopoi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D175/04C09D167/00C09D167/08C09D163/00C09D5/14C09D7/12A01N59/16A01P1/00
Inventor 胡兰梅长林张国胜
Owner ANHUI JINDUN PAINT
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