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Nano-silver peroxide composite antibacterial solution and preparation method thereof

A technology of peroxide and nano-silver, applied in the fields of nanotechnology and fine chemical industry, can solve the problems of poor stability of peroxide and difficult to store for a long time, and achieve the effect of improving sterilization effect, strong sterilization ability and lasting antibacterial effect.

Inactive Publication Date: 2014-02-12
SHANGHAI NAT ENG RES CENT FORNANOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, some peroxides have poor stability and are difficult to store for a long time

Method used

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  • Nano-silver peroxide composite antibacterial solution and preparation method thereof
  • Nano-silver peroxide composite antibacterial solution and preparation method thereof
  • Nano-silver peroxide composite antibacterial solution and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Based on 1000 milliliters of this nano-silver / peroxide compound sterilizing solution, the raw materials and proportioning ratio are shown in the following table:

[0033]

[0034] Preparation method: Before preparation, prepare carbomer into a 1% solution for later use. During preparation, the sodium alanine, boric acid, silver acetate, mannitol and carbomer 2020 solutions were stirred and dissolved in purified water in sequence to form a uniform and transparent solution, and water was added to reach 960 ml, and then sealed and aged at 60 degrees Celsius for 30 hours After the aging is completed, drop to room temperature, add 20% peracetic acid solution, stir slowly and add purified water to the target volume to obtain the target nano-silver / peroxide composite sterilizing solution.

[0035]Bactericidal performance test: According to the 2002 edition of "Disinfection Technical Specifications", the bactericidal performance test is carried out. The test results show th...

Embodiment 2

[0037] Based on 1000 milliliters of this nano-silver / peroxide compound sterilizing solution, the raw materials and proportioning ratio are shown in the following table:

[0038]

[0039] Preparation method: Before preparation, prepare polyvinyl alcohol 1750 into a 5% solution for later use. During preparation, alanine, borax, silver citrate, xylitol and polyvinyl alcohol 1750 solutions were stirred and dissolved in purified water in turn, and after forming a uniform transparent solution, water was added to 800 ml, and it was sealed and aged at 20 degrees Celsius for 60 Hour. After aging, add sodium perborate, stir slowly to dissolve evenly and add purified water to the target volume to obtain the target nano-silver / peroxide composite sterilizing solution.

[0040] Bactericidal performance test: According to the 2002 edition of "Disinfection Technical Specifications", the bactericidal performance test is carried out. The test results show that the killing rate of the above...

Embodiment 3

[0042] Based on 1000 milliliters of this nano-silver / peroxide compound sterilizing solution, the raw materials and proportioning ratio are shown in the following table:

[0043]

[0044] Preparation method: Before preparation, prepare polyvinylpyrrolidone k-30 into a 5% solution for later use. During preparation, sodium glutamate, lactic acid, nano-silver elemental sol, glucitol and polyvinylpyrrolidone k-30 solution were stirred and dissolved in purified water in turn, and after forming a uniform transparent solution, add water to 950 ml, and keep it airtight at 50 degrees Celsius Aging for 24 hours. After aging, cool down to room temperature, add urea peroxide, stir slowly and evenly, and add purified water to the target volume to obtain the target nano-silver / peroxide composite sterilizing solution.

[0045] Bactericidal performance test: According to the 2002 edition of "Disinfection Technical Specifications", the bactericidal performance test is carried out. The test...

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Abstract

The invention discloses a nano-silver peroxide composite antibacterial solution and a preparation method thereof. The antibacterial solution is characterized in that the antibacterial solution comprises following raw materials based on 1000 mL of the nano-silver peroxide composite antibacterial solution: 1-100 g of a nano-silver stabilizing agent, 1-100 g of auxiliary agents, 0.02-2 g of a silver source (based on silver), 0-20 g of a reductant, 0-50 g of a dispersion protection agent and 0.2-100 g of a peroxide, with the balance being purified water. Nano-silver particles of the antibacterial solution have a size of 1-10 nm, and show monodispersity and no agglomeration. The antibacterial solution is colorless, transparent, color change resistant, strongly stable, wide in pH controllable range, and the like. In addition, under conditions that the concentrations of the nano-silver and the peroxide are both low, the antibacterial solution can reach a high sterilizing rate in short time, and has lasting bactericidal effects. The preparation method has characteristics of simple operation, wide parameter adjustable range, low energy consumption, short period, and the like, and is suitable for large-scale production.

Description

technical field [0001] The invention relates to a composite bactericidal liquid and a preparation method thereof, in particular to a nano-silver peroxide composite bactericidal liquid and a preparation method thereof, belonging to the field of nanotechnology and fine chemical industry. Background technique [0002] The emergence of nanotechnology has brought about a qualitative leap in the bactericidal properties of silver in the nanometer state. Nano-silver can produce a strong bactericidal effect with a small amount of use, strong permeability, broad-spectrum bactericidal effect, and no drug resistance; and nano-silver can promote wound healing, cell growth and repair of damaged cells, And without any toxic reaction, without any irritation to the skin. Therefore, nano-silver antibacterial materials can be used in functional plastics, functional coatings, textile fibers, air purification, food, daily chemicals, medical care and other fields, and have very broad market pros...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/16A01P1/00
Inventor 赵斌何丹农
Owner SHANGHAI NAT ENG RES CENT FORNANOTECH
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