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Silver-containing copper-based composite antibacterial coating material and preparation method thereof

A copper-based composite and antibacterial coating technology, which is applied in coatings, biocide-containing paints, antifouling/underwater coatings, etc., can solve the problems of poor wear resistance of antibacterial coatings, hindering drug efficacy, uneven drug distribution, etc. Problems, to achieve strong wear resistance, expand the scope of application, long-lasting effect of sterilization

Inactive Publication Date: 2019-05-07
CHINA NONFERROUS METAL (GUILIN) GEOLOGY & MINING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] A dressing containing metal fungicides such as silver and zinc, patent 2008802100.5 discloses a preparation method of a polyurethane foam dressing, but the drug is likely to be unevenly distributed in the foam or the drug is directly wrapped in the foam, which greatly hinders the efficacy of the drug
[0006] Patent CN108435515A discloses "a copper nanocomposite antibacterial coating and its preparation method", which uses an electrostatic spraying process to spray copper nanocomposite antibacterial powder on the metal surface to form a copper nanocomposite antibacterial coating on the metal surface, but the method formed Antimicrobial coating has poor wear resistance

Method used

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  • Silver-containing copper-based composite antibacterial coating material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Example 1: Method 1 is used to prepare silver-containing copper-based composite antibacterial coating material

[0059] 1) Take a certain amount of micron silver powder, put it into the radio frequency induction plasma powder making equipment, heat the spheroidizing powder, add 20wt% absolute ethanol to the obtained powder, disperse it at high speed, and then classify it with a tube centrifuge 2- 3 times, finally the powder with good dispersibility is obtained and dried in a vacuum oven at 35-45℃ for later use;

[0060] 2) Take a certain amount of Ti(OH) 4 , Use radio frequency induction plasma to prepare nano titanium dioxide powder, add 20wt% absolute ethanol to the prepared powder, disperse it at high speed, and then use a tubular centrifuge to classify it for 2-3 times, and finally obtain a powder with good dispersion in 35- Dry in a vacuum oven at 45°C for later use;

[0061] 3) Preparation of silver-containing copper-based composite antibacterial coating material:

[006...

Embodiment 2

[0069] Example 2: Using method two to prepare silver-containing copper-based composite antibacterial coating material

[0070] 1) Take a certain amount of micron silver powder, put it into the radio frequency induction plasma powder making equipment, heat the spheroidizing powder, add 20wt% absolute ethanol to the obtained powder, disperse it at high speed, and then classify it with a tube centrifuge 2- 3 times, finally the powder with good dispersibility is obtained and dried in a vacuum oven at 35-45℃ for later use;

[0071] 2) Take a certain amount of TiO(OH) 2 , Use radio frequency induction plasma to prepare nano titanium dioxide powder, add 20wt% absolute ethanol to the prepared powder, disperse it at high speed, and then use a tubular centrifuge to classify it for 2-3 times, and finally obtain a powder with good dispersion in 35- Dry in a vacuum oven at 45°C for later use;

[0072] 3) Preparation of silver-containing copper-based composite antibacterial coating material:

[00...

Embodiment 3

[0080] Example 3: Method 3 is used to prepare silver-containing copper-based composite antibacterial coating material

[0081] 1) Take a certain amount of micron silver powder, put it into the radio frequency induction plasma powder making equipment, heat the spheroidizing powder, add 20wt% absolute ethanol to the obtained powder, disperse it at high speed, and then classify it with a tube centrifuge 2- 3 times, finally the powder with good dispersibility is obtained and dried in a vacuum oven at 35-45℃ for later use;

[0082] 2) Take a certain amount of TiO 2 , Use radio frequency induction plasma to prepare nano titanium dioxide powder, add 20wt% absolute ethanol to the prepared powder, disperse it at high speed, and then use a tubular centrifuge to classify it for 2-3 times, and finally obtain a powder with good dispersion in 35- Dry in a vacuum oven at 45°C for later use;

[0083] 3) Preparation of silver-containing copper-based composite antibacterial coating material:

[0084] ...

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Abstract

The invention discloses a silver-containing copper-based composite antibacterial coating material and a preparation method thereof. The coating material comprises porous copper powder and silver and an titanium dioxide nano antibacterial material which are attached into the porous copper powder; and the coating material is prepared from the following components: silver-containing nano owder, nanotitanium dioxide, ultrafine porous copper powder and other nano metal powders, wherein the effective content of silver is 12.0-25.0 wt%, the effective content of the titanium dioxide is 18.0-32.0 wt%,the effective content of the ultrafine porous copper powder is 28.0-58.0 wt%, and the effective content of the other metal powder is 0-30.0 wt%.

Description

Technical field [0001] The invention belongs to the technical field of electronic coating materials, and relates to an antibacterial coating material, in particular to a silver-containing copper-based composite antibacterial coating material and a preparation method thereof. Background technique [0002] In people's actual life, the skin will inevitably come into contact with various bacteria, fungi and other microorganisms. These microorganisms will multiply rapidly under suitable external conditions, and spread diseases through contact and other methods, affecting people's bodies. health. Especially after wounds, burns or ulcers, the skin is more likely to cause infections or slow down wound healing. Objects that people often touch, not only the surface of the object itself will adsorb bacteria and other microorganisms, but also cross-contact will cause the spread of bacteria. If the surface of the object is coated with antibacterial material, the surface of the object will ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/14C09D1/00
Inventor 王立惠夏村村卢宗柳林峰秦海青刘文平张建伟张振军卢安军雷晓旭蒙光海
Owner CHINA NONFERROUS METAL (GUILIN) GEOLOGY & MINING CO LTD
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