Antibacterial film coating member and its preparation method

An antibacterial coating, nickel chromium nitrogen technology, applied in the field of antibacterial coating parts and its preparation, can solve the problems of reducing the antibacterial durability of metal antibacterial coatings, loss of antibacterial metal ions, and low surface hardness

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, the thickness of this type of metal antibacterial coating is usually relatively thin, the antibacterial metal ions are lost quickly, and the surface hardness is low and easy to wear, thereby reducing the antibacterial durability of the metal antibacterial coating

Method used

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  • Antibacterial film coating member and its preparation method
  • Antibacterial film coating member and its preparation method
  • Antibacterial film coating member and its preparation method

Examples

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preparation example Construction

[0024] The preparation method of the antibacterial coating part 10 of a preferred embodiment of the present invention, it comprises the steps:

[0025] A substrate 11 is provided, and the material of the substrate 11 is preferably stainless steel, but not limited to stainless steel.

[0026] The substrate 11 is subjected to surface pretreatment. The surface pretreatment may include conventional steps of polishing the substrate 11 , ultrasonic cleaning with absolute ethanol, and drying.

[0027] Argon plasma cleaning is performed on the surface of the substrate 11 after the above treatment to further remove impurities remaining on the surface of the substrate 11 and improve the bonding force between the surface of the substrate 11 and the subsequent coating. 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 evacu...

Embodiment 1

[0035] The vacuum coating machine 20 used in this embodiment is a magnetron sputtering coating machine.

[0036] The material of the substrate 11 used in this embodiment is stainless steel.

[0037] Plasma cleaning: the flow rate of argon gas is 500 sccm, the bias voltage of the substrate 11 is -200V, and the plasma cleaning time is 5 minutes;

[0038] Sputtering primer layer 13: the mass percentage of nickel in the nickel-chromium alloy target 23 is 35%, the power of the nickel-chromium alloy target 23 is 7kw, the flow rate of argon gas is 420sccm, the bias voltage of the substrate 11 is -100V, and the coating temperature is The temperature is 80°C, and the coating time is 6 minutes; the thickness of the primer layer 13 is 185nm;

[0039] Sputtering nickel-chromium-nitrogen layer 15: the power of nickel-chromium alloy target 23 is 8kw, the flow rate of argon gas is 400 sccm, the flow rate of nitrogen gas is 60 sccm, the bias voltage of substrate 11 is -80V, the coating tempe...

Embodiment 2

[0043] The vacuum coating machine 20 and the substrate 11 used in this embodiment are the same as those in Embodiment 1.

[0044] Plasma cleaning: the flow rate of argon gas is 500 sccm, the bias voltage of the substrate 11 is -200V, and the plasma cleaning time is 5 minutes;

[0045] Sputtering primer layer 13: the mass percentage of nickel in the nickel-chromium alloy target 23 is 40%, the power of the nickel-chromium alloy target 23 is 7kw, the flow rate of argon gas is 420sccm, the bias voltage of the substrate 11 is -100V, and the coating temperature is The temperature is 80°C, and the coating time is 5 minutes; the thickness of the primer layer 13 is 185nm;

[0046] Sputtering nickel-chromium-nitrogen layer 15: the power of nickel-chromium alloy target 23 is 7kw, the flow rate of argon gas is 400sccm, the flow rate of nitrogen gas is 100sccm, the bias voltage of substrate 11 is -80V, the coating temperature is 80°C, and the coating time is 5min; The thickness of the nic...

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Abstract

The invention provides an antibacterial film coating member with a lasting antibacterial effect. The antibacterial film coating member comprises a base material, a bottom coating formed on the surface of the base material and several nickel-chromium-nitrogen layers and several copper-silver-cerium alloy layers formed on the surface of the bottom coating. The several nickel-chromium-nitrogen layers and the several copper-silver-cerium alloy layers are alternatively arranged. According to the antibacterial film coating member, part of the copper-silver-cerium alloy layers is embedded into the nickel-chromium-nitrogen layers by the utilization of the loose porous structure of the nickel-chromium-nitrogen layers, rapid dissolution of copper, silver and cerium ions in the copper-silver-cerium alloy layers is obstructed, so as to relieve dissolution of the copper, silver and cerium ions and endow the copper-silver-cerium alloy layers with a long-acting antibacterial effect. In addition, the invention also provides a preparation method of the antibacterial film coating 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. Coating antibacterial metals (Cu, Zn, Ag, etc.) on substrates to form antibacterial coatings is widely used in the current market. The bactericidal mechanism of the antibacterial coating is: during the use of the coating, the antibacterial metal coating will 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 on ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/06C23C14/35
CPCC23C28/34C23C28/321C23C14/35C23C28/42C23C14/06C23C28/40Y10T428/12542Y10T428/24975Y10T428/1291Y10T428/12632Y10T428/265Y10T428/12979Y10T428/12854Y10T428/12576Y10T428/249957Y10T428/24997Y10T428/31678
Inventor 张新倍陈文荣蒋焕梧陈正士李聪
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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