Antibacterial film-coated member and the preparation method thereof

An antibacterial coating and titanium dioxide technology is applied in the field of antibacterial coating parts and their preparation, which can solve the problems of reducing the antibacterial effect of metal antibacterial materials, and achieve the effect of prolonging the service life and strong antibacterial effect.

Inactive Publication Date: 2012-09-26
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, with the consumption and loss of metal ions, the antibacterial effect of metal antibacterial materials will gradually decrease.

Method used

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  • Antibacterial film-coated member and the preparation method thereof
  • Antibacterial film-coated member and the preparation method thereof
  • Antibacterial film-coated member and the preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0023] The preparation method of the antibacterial coating part 10 of a preferred embodiment of the present invention, it comprises the steps:

[0024] A substrate 11 is provided, and the material of the substrate 11 is preferably stainless steel, but not limited to stainless steel.

[0025] The substrate 11 is subjected to surface pretreatment. The surface pretreatment may include conventional steps such as ultrasonic cleaning and drying of the substrate 11 with absolute ethanol.

[0026] combined reference figure 2 , provide a vacuum coating machine 20, the vacuum coating machine 20 includes a coating chamber 21 and a vacuum pump 30 connected to the coating chamber 21, the vacuum pump 30 is used to evacuate the coating chamber 21. The coating chamber 21 is provided with a turntable (not shown), two titanium targets 23 and two copper targets 24 . The turntable drives the base material 11 to revolve along the circular track 25 , and the base material 11 also rotates when i...

Embodiment 1

[0033] The vacuum coating machine 20 used in this embodiment is a magnetron sputtering coating machine.

[0034] The material of the substrate 11 used in this embodiment is stainless steel.

[0035] Sputtering primer layer 13: the power of titanium target 23 is 8kw, the flow rate of argon gas is 150sccm, the bias voltage of substrate 11 is -100V, the coating temperature is 120°C, and the coating time is 10min; the thickness of the primer layer 13 is 100nm;

[0036] Sputtering titanium dioxide layer 15: the power of titanium target 23 is 8kw, the flow rate of argon gas is 150sccm, the flow rate of oxygen gas is 70sccm, the bias voltage of substrate 11 is -100V, the coating temperature is 120°C, and the coating time is 10min; the titanium dioxide layer The thickness is 50nm.

[0037] Sputtering metal copper layer 17: the power of copper target 24 is 5kw, the bias voltage of substrate 11 is -100V, the flow rate of argon gas is 150sccm, the coating temperature is 120°C, and the c...

Embodiment 2

[0040] The vacuum coating machine 20 and the substrate 11 used in this embodiment are the same as those in Embodiment 1.

[0041] Sputtering primer layer 13: the power of titanium target 23 is 8kw, the flow rate of argon gas is 150sccm, the bias voltage of substrate 11 is -100V, the coating temperature is 120°C, and the coating time is 5min; the thickness of the primer layer 13 is 50nm;

[0042] Sputtering titanium dioxide layer 15: the power of titanium target 23 is 10kw, the flow rate of argon gas is 150sccm, the flow rate of oxygen gas is 100sccm, the bias voltage of substrate 11 is -100V, the coating temperature is 120°C, and the coating time is 15min; the titanium dioxide layer The thickness is 90nm.

[0043] Sputtering metal copper layer 17: the power of copper target 24 is 5kw, the bias voltage of substrate 11 is -100V, the flow rate of argon gas is 150sccm, the coating temperature is 120°C, and the coating time is 5min; the thickness of the metal copper layer 17 is 10...

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Abstract

The invention provides an antibacterial film-coated member. The antibacterial film-coated member has lasting antibacterial effects, is suitable for a plurality of environments and comprises a base material, and multiple titanium dioxide layers and multiple copper layers formed on the surface of the base material, wherein the multiple titanium dioxide layers and the multiple copper layers are arranged alternately. The multiple titanium dioxide layers can inhibit the fast dissolution of copper ions of the multiple copper layers thereby delaying the dissolution of the copper ions and thus lasting antibacterial effects of the multiple copper layers are obtained. The antibacterial film-coated member is suitable for a plurality of environments. In the dark, the multiple copper layers of the antibacterial film-coated member perform main antibacterial effects and under lights, the multiple titanium dioxide layers perform antibacterial effects so that the antibacterial film-coated member has stronger antibacterial effects. In addition, the invention also provides a preparation method of the antibacterial film-coated member.

Description

technical field [0001] The invention relates to an antibacterial coating part and a preparation method thereof. Background technique [0002] The spread and infection of harmful bacteria is a serious threat to human health, especially in recent years, the spread and infection of SARS virus and bird flu have made the application of antibacterial materials in daily life develop rapidly. There are currently two commonly used antibacterial materials, metal antibacterial materials and photocatalytic antibacterial materials. Common metal antibacterial materials are copper, zinc and silver, etc. Their antibacterial mechanism is: antibacterial metals slowly release metal ions such as Cu 2+ , Zn 2+ , when a small amount of bactericidal metal ions come into contact with microorganisms such as bacteria, the metal ions rely on Coulomb force to firmly adsorb with negatively charged microorganisms, and the metal ions penetrate the cell wall and react with the sulfhydryl and amino groups...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/35C23C14/08C23C14/18C23C14/54
CPCC23C14/0036C23C14/35C23C14/083C23C14/54C23C14/08C23C14/022C23C14/185C23C14/18Y10T428/12542Y10T428/24975Y10T428/265
Inventor 张新倍陈文荣蒋焕梧陈正士胡智杰
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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