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Silver-based antibacterial material containing porous composite calcium carbonate and preparation method of antibacterial material

A technology of composite calcium carbonate and porous calcium carbonate, which can be used in biocide-containing paints, antifouling/underwater coatings, fiber treatment, etc. It 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
中国有色桂林矿产地质研究院有限公司
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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-based antibacterial material containing porous composite calcium carbonate and preparation method of antibacterial material

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Effect test

Embodiment 1

[0058] Embodiment 1: adopt method one to prepare the silver-based antibacterial material containing porous composite calcium carbonate

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

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

[0061] 3) Preparation of silver-based antibacterial material containing porous composite calcium carbonate:

...

Embodiment 2

[0069] Embodiment 2: adopt method two to prepare the silver-based antibacterial material containing porous composite calcium carbonate

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

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

[0072] 3) Preparation of silver-based antibacterial material containing porous composite calcium carbonate: ...

Embodiment 3

[0080] Embodiment 3: adopt method three to prepare the silver-based antibacterial material containing porous composite calcium carbonate

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

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

[0083] 3) Preparation of silver-based antibacterial material containing porous composite calcium carbonate: ...

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Abstract

The invention discloses a silver-based antibacterial material containing porous composite calcium carbonate and a preparation method of the antibacterial material. The antibacterial material comprisesporous calcium carbonate, silver and a titanium dioxide nano antibacterial material, wherein the silver and the titanium dioxide nano antibacterial material are attached to the inside of the porous calcium carbonate. The antibacterial material is prepared from the following components: silver-containing nano powder, nano titanium dioxide, superfine porous calcium carbonate and other nano metal powder, wherein the effective content of the 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 superfine porous calcium carbonate is 28.0-58.0 wt%, and the effective content of 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-based antibacterial material containing porous composite calcium carbonate 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 ways, affecting people's bodies. healthy. The skin, in particular, is more susceptible to infection after trauma, burns, or ulcers, or slows wound healing. Objects that people often touch will not only absorb bacteria and other microorganisms on the surface of the object itself, but also cause the spread of bacteria through cross contact. If antibacterial materials are coated on the surface of the object, the surface of t...

Claims

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Application Information

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IPC IPC(8): C09D5/14C09D1/00D06M11/83D06M11/46D06M11/76
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 中国有色桂林矿产地质研究院有限公司
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