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Simple production method for nano-silver antiseptic solution

A nano-silver antibacterial and antibacterial solution technology is applied in the fields of botanical equipment and methods, chemicals for biological control, animal repellents, etc. The effect of storage stability, wide source of materials and simple process

Inactive Publication Date: 2009-04-08
苏伟 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent liquid nano silver simple substance preparation method (200510036375.4) has complex process, many raw materials and long reaction time
Preparation method of nano-silver solution and nano-silver powder with high polymer as stabilizer (200510049258), the raw materials are also relatively complicated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Dissolve 0.4g of silver nitrate and 1g of soluble starch in 100mL of deionized water, put them in an autoclave for 20 minutes, keep the temperature at 115-120°C, and the pressure at 0.05-0.07MPa to obtain nano-silver antibacterial particles with a particle size of less than 10nm solution.

Embodiment 2

[0018] Dissolve 0.4g of silver nitrate and 1g of dextran in 100mL of deionized water, put them in an autoclave for 20 minutes, keep the temperature at 115-120°C, and the pressure at 0.05-0.07MPa, and you can get nano silver with a particle size of less than 10nm Antibacterial solution.

Embodiment 3

[0020] Dissolve 0.4g of silver nitrate and 1g of hydroxyethyl cellulose in 100mL of deionized water, put them in an autoclave for 20 minutes, keep the temperature at 115-120°C, and the pressure at 0.05-0.07MPa to obtain particles with a particle size of less than 10nm. Nano silver antibacterial solution.

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Abstract

The invention discloses a simple method for preparing a nano-silver antibacterial solution, which is mainly characterized in that the nano-silver solution is prepared by taking a high-pressure sterilizing pot as a reaction environment, utilizing silver nitrate as a silver source and using soluble starch and other polysaccharide substances as protective agents; the average particle size of the nano-silver in the solution is less than 10 nanometers; the solution can have antibacterial effects under low concentration; and the method is simple in process, high in efficiency, high in the concentration (up to 10000 ppm) of the prepared nano-silver solution, few in impurities and high in stability, and can be widely applied to electronic, textile, medical health, food, coating, plastic and other fields.

Description

Technical field [0001] The invention relates to a method for preparing a nano-silver antibacterial solution, belonging to the field of nano-materials and technologies. Background technique [0002] Due to the small size and rapid reproduction of microorganisms, they are very harmful to humans and the environment: they spread diseases, and more than one outbreak of epidemic diseases worldwide. Now everyone still has lingering fears when talking about "SARS" and bird flu; it will cause food pollution, water pollution, Contamination of literature archives and works of art affects the quality of biopharmaceutical products and damages precision electronic instruments, so it is urgent to prevent microbial hazards (antibacterial). [0003] Nano-silver has the functions of antibacterial and deodorizing, water purification, antisepsis, and medical treatment. At the same time, it also has the characteristics of broad-spectrum antibacterial, strong sterilization, strong permeability, l...

Claims

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Application Information

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IPC IPC(8): A01N59/16A01P1/00
Inventor 苏伟汤建新
Owner 苏伟
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