Antibacterial and wear-resistant nano-composite coating and preparation method thereof

A nano-composite coating, metal technology, applied in coatings, chemical instruments and methods, metal material coating processes, etc., to achieve the effect of optimizing process parameters

Inactive Publication Date: 2015-04-08
ACADEMY OF ARMORED FORCES ENG PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of coatings with high-efficiency automatic sterilization function and high hardness and wear resistance on the s...

Method used

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  • Antibacterial and wear-resistant nano-composite coating and preparation method thereof
  • Antibacterial and wear-resistant nano-composite coating and preparation method thereof
  • Antibacterial and wear-resistant nano-composite coating and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0045] In this embodiment, the stainless steel 306 is used as the substrate, and the TiCuN coating is deposited by magnetron sputtering technology, so as to endow the surface of the stainless steel with automatic sterilization performance. Concrete preparation process is as follows:

[0046] (1) Preliminary cleaning of stainless steel: Use a metal cleaning agent to ultrasonically clean the sample for 15 minutes, then rinse it with tap water, then rinse it quickly in deionized water, and then put it into 0.5% dilute HCl for surface activation for 2 minutes, rinse it again Sonicate in acetone for 15 minutes, dry and place in a vacuum chamber.

[0047](2) Cleaning by argon sputtering in the vacuum chamber: After heating to 250° C., argon gas (volume percentage >99.99%) is introduced into the vacuum chamber to increase the pressure in the vacuum chamber to 1.0 Pa. At this time, the bias power supply was turned on, and under the action of a negative bias voltage of 800V, the argon...

Embodiment 2

[0059] In this embodiment, the high-speed steel is used as the substrate, and the ZrCuN coating is deposited by magnetron sputtering technology, so as to endow the surface of the high-speed steel with automatic sterilization performance. Concrete preparation process is as follows:

[0060] (1) Preliminary cleaning of high-speed steel: Use a metal cleaning agent to ultrasonically clean the sample for 15 minutes, then rinse it with tap water, then rinse it quickly in deionized water, and then put 0.75% dilute H 3 PO 4 The middle surface is activated for 2 minutes, rinsed again, ultrasonically cleaned in acetone for 15 minutes, dried and placed in a vacuum chamber.

[0061] (2) Cleaning by argon sputtering in the vacuum chamber: after heating to 400° C., argon gas (volume percentage >99.99%) is introduced into the vacuum chamber to increase the pressure in the vacuum chamber to 3.0 Pa. At this time, the bias power supply was turned on, and under the action of a negative bias vo...

Embodiment 3

[0073] In this embodiment, the high-speed steel is used as the substrate, and the ZrCu(Ag)N coating is deposited by magnetron sputtering technology, so as to endow the surface of the high-speed steel with automatic sterilization performance. Concrete preparation process is as follows:

[0074] (1) Preliminary cleaning of high-speed steel: Use a metal cleaning agent to ultrasonically clean the sample for 15 minutes, then rinse it with tap water, then rinse it quickly in deionized water, and then put 0.75% dilute H 3 PO 4 The middle surface is activated for 2 minutes, rinsed again, ultrasonically cleaned in acetone for 15 minutes, dried and placed in a vacuum chamber.

[0075] (2) Cleaning by argon sputtering in the vacuum chamber: after heating to 400° C., argon gas (volume percentage >99.99%) is introduced into the vacuum chamber to increase the pressure in the vacuum chamber to 2.0 Pa. At this time, the bias power supply was turned on, and under the action of a negative bia...

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Abstract

The invention relates to an antibacterial and wear-resistant nano-composite coating and a preparation method thereof and relates to the field of preparation of nano-composite coatings. The nano-composite coating MeCuN with the functions of automatic sterilization, high rigidity and wear resistance is deposited on the surface of a workpiece requiring the antibacterial function by adopting a physical vapor deposition technology (including magnetron sputtering and arc ion plating). As Cu particles in nanometer scale are distributed on the surface of the coating; by utilizing such characteristic of the Cu particles as high surface free energy and large specific surface area, the nano-composite coating MeCuN is capable of automatically killing more than 99 percent of bacteria on the surface of the workpiece without the additional conditions including a sterilization material and sunlight. With hard nitride ceramic coating as a base, the antibacterial and wear-resistant nano-composite coating is high in rigidity and wear resistance and can be used for places needing sterilization for a long time, including medical devices such as scalpels, kitchen utensils such as vegetable basins and public transportation vehicles such as stainless steel handrails. As the thickness of the coating is about several microns, the size of the workpiece is not changed, and the antibacterial and wear-resistant nano-composite coating can be used for the surface antibacterial treatment of precision equipment.

Description

technical field [0001] The invention relates to the technical field of workpiece surface treatment, in particular to a copper-doped transition metal nitride (hereinafter referred to as MeCuN) nanocomposite hard coating with automatic sterilization function and a preparation method thereof. Background technique [0002] The improvement of living standards makes people pay more attention to safety and hygiene in daily life. With the development of urbanization, the urban population density is getting higher and higher, and the hidden danger of spreading viruses through bacteria is getting higher and higher. The chance of virus transmission in public places is greater, which provides a very favorable breeding ground for the spread of the virus. Buses, subways and other public transportation vehicles are crowded and easy to spread the virus. Therefore, it is now necessary to carry out regular anti-virus treatment on the above-mentioned transportation vehicles, and people will c...

Claims

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Application Information

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IPC IPC(8): B32B15/04B32B9/04C23C14/16C23C14/06C23C14/35
CPCC23C14/0036C23C14/0641C23C14/165
Inventor 杜军王红美史佩京谭俊朱晓莹
Owner ACADEMY OF ARMORED FORCES ENG PLA
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