Nanometer Ag antimicrobial and preparation method thereof

An antibacterial agent and nano-silver technology, which is applied in the field of antibacterial agents, can solve problems such as unfavorable industrial production and difficult control of silver ion reduction, and achieve the effects of increasing mutual solubility, preventing precipitation and layering effects, and improving comfort

Inactive Publication Date: 2012-08-01
宋信宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Chinese patent CN1277476C discloses a method for obtaining nano-silver by reducing silver nitrate with a water-soluble reducing agent as a stabilizer with a water-soluble polymer. The preparation process of this method requires chemical changes, and the reduction of silver ions is difficult to control. Silver nitrate and The amount of water-soluble reducing agent needs to be precisely controlled, which is not conducive to large-scale industrial production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Add 0.002Kg of nano-silver particles with a particle diameter of 1nm into 62.198Kg of distilled water, then add 0.2Kg of nonylphenol polyoxyethylene (10) ether and 30Kg of water-soluble natural resin, and stir for 10 minutes at a speed of 1000 rpm at normal temperature , to make liquid A.

[0034] Add 0.1Kg dimethyl phthalate and 2Kg acrylic resin to 5Kg acetone, stir at 1000 rpm for 10 minutes; Stir for 10 minutes to prepare liquid B.

[0035] Add liquid A to liquid B, and stir at a speed of 1000 rpm for 10 minutes at room temperature to prepare a nano-silver antibacterial agent.

Embodiment 2

[0037] Add 0.006Kg of nano-silver particles with a particle diameter of 20nm into 41.889Kg distilled water, then add 0.5Kg nonylphenol polyoxyethylene (10) ether and 20Kg pectin, and stir at 700 rpm for 20 minutes at normal temperature to prepare into liquid A.

[0038] Add 0.5Kg dimethyl phthalate and 5Kg acrylic resin to 30Kg ethanol, stir at 700 rpm for 20 minutes; then add 2Kg diethylene glycol monobutyl ether, and stir at 700 rpm at room temperature After 20 minutes, liquid B was prepared.

[0039] Add liquid A to liquid B, add 0.1Kg lemon oil, add 0.005Kg gardenia yellow pigment and curcumin, and stir for 20 minutes at a speed of 700 rpm at room temperature to prepare a nano silver antibacterial agent.

Embodiment 3

[0041] Add 0.01Kg of nano-silver particles with a particle size of 40nm into 47.38Kg of distilled water, then add 1Kg of octylphenol polyoxyethylene (10) ether and 10Kg of carboxymethyl cellulose, and stir for 30 minutes at a speed of 500 rpm at room temperature , to make liquid A.

[0042] Add 1Kg of diethyl phthalate and 10Kg of acrylic resin to 20Kg of ether, stir at 700 rpm for 20 minutes; then add 10Kg of ethylene glycol monoethyl ether, and stir for 30 minutes at room temperature at 500 rpm , to make liquid B.

[0043] Add liquid A to liquid B, add 0.6Kg jasmine oil, then add 0.01Kg safflower yellow and citrus yellow, and stir for 30 minutes at a speed of 500 rpm at room temperature to obtain a nano silver antibacterial agent.

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Abstract

The invention discloses a nanometer Ag antimicrobial comprising nanometer Ag particle, a solubilizer, a water-soluble polymer, a plasticizer, a processing modifier, a solvent, a film-forming assistant, essence, pigment, distilled water or deionized water. The invention also disclosed a preparation method of the nanometer Ag antimicrobial. The preparation method comprises the steps of: adding the nanometer Ag particle into the distilled water or the deionized water, adding the solubilizer and the water-soluble polymer, and stirring to prepare a solution A; adding the plasticizer and the processing modifier (acrylate (ACR)) into the solvent, stirring, adding the film-forming assistant, and stirring to prepare a solution B; and adding the solution A into the solution B, adding the essence and the pigment, and stirring to obtain the nanometer Ag antimicrobial. The nanometer Ag antimicrobial disclosed by the invention has the advantages of strong adhesion on objects, good film forming property, good friction resistance and long-lasting antibacterial effect; and the preparation method has the advantages of simpleness and strong operability.

Description

technical field [0001] The invention belongs to the technical field of antibacterial agents, and in particular relates to a nano-silver antibacterial agent, and also relates to a preparation method of the nano-silver antibacterial agent. Background technique [0002] Silver was used to treat sword wounds in ancient times. The "Compendium of Materia Medica" has recorded the bactericidal function of silver; "Basic Chemical Elements" also described the bactericidal function of silver: silver has a unique effect as a bactericide, 1 % silver nitrate solution is commonly used in the treatment of conjunctivitis. Metallic silver has a strong bactericidal effect. [0003] Nano Silver (Nano Silver) refers to the use of cutting-edge nanotechnology to nanoscale silver and make the particle size nanoscale metallic silver. The particle size of nano-silver is less than 100nm, generally between 25-50nm. The emergence of nanotechnology has made a qualitative leap in the bactericidal abilit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/16A01N25/30A01P1/00C09D7/12C09D5/14C09D193/00C09D105/06C09D101/28C09D129/04C09D139/06
Inventor 宋信宇
Owner 宋信宇
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