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Compound antibacterial coating containing silicon dioxide and preparation method thereof

A compound antibacterial and silicon dioxide technology, which is applied to biocide-containing paints, antifouling/underwater coatings, coatings, etc., can solve the problems of poor wear resistance of antibacterial coatings, hindering drug efficacy, uneven drug distribution, etc. , to achieve the effect of strong wear resistance, expanding the scope of application, and long duration of sterilization

Inactive Publication Date: 2019-03-19
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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  • Compound antibacterial coating containing silicon dioxide and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Embodiment 1: adopt method one to prepare the composite antibacterial coating containing silicon dioxide

[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 composite antibacterial coating containing silicon dioxide:

[0062] ①Weigh the solid powder in proportion:...

Embodiment 2

[0069] Embodiment 2: adopt method two to prepare the composite antibacterial coating containing silicon dioxide

[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 composite antibacterial coating containing silicon dioxide:

[0073] ① Weigh the solid powder in proportio...

Embodiment 3

[0080] Embodiment 3: adopt method three to prepare the composite antibacterial coating containing silicon dioxide

[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 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;

[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 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;

[0083] 3) Preparation of composite antibacterial coating containing silicon dioxide:

[0084] ① Weigh the solid powder in proportion:...

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Abstract

The invention discloses compound antibacterial coating containing silicon dioxide and a preparation method thereof. The coating comprises porous silicon dioxide, silver attached in the porous silicondioxide and a titanium dioxide nano-antibacterial material, and is prepared from silver-containing nano-powder, nano-titanium dioxide, ultrafine porous silicon dioxide and other nano-metal powder, wherein the effective content of silver is 12.0-25.0 percent by weight, the effective content of titanium dioxide is 18.0-32.0 percent by weight, the effective content of ultrafine porous silicon dioxideis 28.0-58.0 percent by weight, and other metal powder is 0-30.0 percent by weight.

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 composite antibacterial coating containing silicon dioxide 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 the object will have the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/14C09D1/00
CPCC09D1/00C09D5/14
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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