Antimicrobial stock solution for nano-silver antibacterial paint, preparation method and application thereof

A nano-silver antibacterial and antibacterial agent technology, applied in the application field of nanotechnology, can solve problems such as restricting the promotion and use of inorganic antibacterial agents, antibacterial stability, and reducing antibacterial properties, and achieves increased grinding process, stable chemical properties, and wide application. Effect

Inactive Publication Date: 2009-09-30
SHENZHEN YITONGLANGBO TECH
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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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  • Antimicrobial stock solution for nano-silver antibacterial paint, preparation method and application thereof
  • Antimicrobial stock solution for nano-silver antibacterial paint, preparation method and application thereof
  • Antimicrobial stock solution for nano-silver antibacterial paint, preparation method and application thereof

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preparation example Construction

[0057] The preparation technology of nanometer silver antibacterial agent stoste, such as figure 1 shown.

[0058] The prepared nano-silver antibacterial agent stock solution must also ensure its own stability. After the nano-silver antibacterial agent stock solution prepared by the above-mentioned special polymer technology is continuously irradiated with UV light, it can still maintain a stable state from 1 day to 400 days. The results Such as Figure 5 shown.

[0059] The relationship between the amount of nano-silver added to the coating and the antibacterial effect.

[0060] Nano silver content: 30ppm Antibacterial technical indicators are as follows

[0061]

[0062] Nano silver content: 50ppm Antibacterial technical indicators are as follows:

[0063]

[0064] Nano silver content: 100ppm Antibacterial technical indicators are as follows:

[0065]

[0066] From the comparison and analysis of the data in the above table, according to the current antibacteria...

specific Embodiment approach 1

[0073] A nano-silver antibacterial coating antibacterial agent stock solution, its configuration is divided into two processes, first configure the nano-silver mother solution, its proportioning by weight is:

[0074] Nano Pure Silver Colloid 30g

[0075] Pure water 30g

[0076] Isopropanol 60g

[0077] Ethyl Acrylic Acid - Ethyl 20g

[0078] Polyethylene-carboxy polymer 1.5g

[0079] Preparation:

[0080] The first step is to prepare a silver colloid solution of particles with a diameter of about 1-5nm.

[0081] The second step is to prepare pure deionized water (resistance ≥ 1 million ohms).

[0082] In the third step, add the nano-silver colloid solution and purified water prepared in the first and second steps into a specially treated tempered glass tank, add dispersant and coating agent at the same time, and then fully stir to make the mixing reaction uniform.

[0083] In the fourth step, the reaction vessel was purged with nitrogen or argon for 12 hours, and tightl...

Embodiment 2

[0099] A nano-silver antibacterial coating antibacterial agent stock solution, its configuration is divided into two processes, first configure the nano-silver mother solution, its proportioning by weight is:

[0100] Nano Pure Silver Colloid 10g

[0101] Pure water 10g

[0102] Isopropanol 30g

[0103] Ethyl Acrylic Acid - Ethyl 10g

[0104] Polyethylene-carboxy polymer 0.5g

[0105] Preparation:

[0106]The first step is to prepare a silver colloid solution of particles with a diameter of about 1-5nm.

[0107] The second step is to prepare a mixed solution of pure deionized water and isopropanol (resistance ≥ 1 million ohms).

[0108] The third step is to add the nano-silver colloid solution prepared in the first and second steps and the mixed solution of water and isopropanol into a specially-treated tempered glass jar, add a dispersant and a coating agent at the same time, and then fully stir to make the Mix the reaction evenly.

[0109] In the fourth step, the abov...

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Abstract

The invention belongs to the field of nanotechnology application, and in particular relates to an antimicrobial stock solution prepared from micro nano particles consisting of nano silver single substance and added in an antibacterial paint, a preparation method thereof and application thereof in the paint. The preparation method comprises that: firstly, nano pure silver colloid, pure water, alcohol solvent, an coating agent, a dispersant and the like are prepared into nano silver mother solution; then, the nano silver mother solution is mixed with solvent, a stabilizing agent and the dispersant to prepare the antimicrobial stock solution for the nano-silver antibacterial paint; and finally, the antimicrobial stock solution for the nano-silver antibacterial paint is added into a water paint or an oil paint required to be used. The invention can provide the antimicrobial stock solution prepared from nano silver single substance; the antimicrobial stock solution uses liquid nano silver stock solution to replace the common powder antimicrobial, solves the problems of small dosage, difficult dissolution and dispersion and easy glomeration, is applied to the paint and can be widely applied to various oil and non-oil (namely solvent and non solvent) paints.

Description

【Technical field】 [0001] The invention belongs to the field of nanotechnology applications, in particular to an antibacterial agent stock solution added to an antibacterial coating made of tiny nanoscale particles composed of nano-silver simple substance, as well as a preparation method of the antibacterial agent stock solution and the application of the above antibacterial agent stock solution in the coating in the application. 【Background technique】 [0002] There are many kinds of existing antibacterial agents, and they are used in a wide range of fields, such as environment, family and work. Existing antibacterial agents mainly include the following types. Organic antibacterial agents have strong initial bactericidal power, but short bactericidal time and poor broad-spectrum antibacterial properties. Whether they are powder or liquid, they can be difficult to disperse or blend. In addition, it has been developed for decades, the technology is mature, and the price is r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/16C09D5/14C09D7/12
Inventor 叶新耀李瑢薰李宪珖
Owner SHENZHEN YITONGLANGBO TECH
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