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A kind of antibacterial stainless steel containing silver on the surface and preparation method thereof

An antibacterial stainless steel and stainless steel technology, applied in the field of materials, can solve the problems of unsuitability for large-scale production, high power consumption of magnetron sputtering, and low utilization rate of target materials, achieving no drug resistance, wide trial range, The effect of short processing time

Inactive Publication Date: 2016-05-04
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the magnetron sputtering method has disadvantages such as high power consumption, low target utilization rate, and thin film layer, and its high cost is not suitable for large-scale production.
[0008] The above antibacterial stainless steels all use copper as the antibacterial element, and the antibacterial effect is generally poor

Method used

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  • A kind of antibacterial stainless steel containing silver on the surface and preparation method thereof
  • A kind of antibacterial stainless steel containing silver on the surface and preparation method thereof
  • A kind of antibacterial stainless steel containing silver on the surface and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] (1) Using SUS304 austenitic stainless steel as the base metal, wire-cut it into a sample of 15mm×15mm×4mm, first polish it with 800-mesh sandpaper, and then polish the surface of the stainless steel with 1000-mesh sandpaper to make the surface roughness Ra0 .045.

[0039] (2) Use acetone to remove oil stains on the stainless steel surface in an ultrasonic environment. The amount of acetone is just enough to cover the stainless steel sample, and the ultrasonic time is 10 minutes; after ultrasonic degreasing, wash with deionized water and dry.

[0040] (3) Add silver ammonia solution, sodium nitrate and deionized water to the electrolytic tank of the equipment to prepare the electrolyte, and put the cleaned stainless steel in the electrolyte for infiltration. The liquid phase plasma electrolytic osmosis equipment adopts asymmetrical square wave AC microwave Arc oxidation power supply (rated power: 50KVA, average current: 0-50A), equipped with ammeter, voltmeter, cooling s...

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Abstract

The invention discloses an antibiotic stainless steel with the surface containing silver, and a preparation method thereof. A liquid phase plasma electrolysis penetration technology is adopted to make an antibiotic metal element silver penetrate into a stainless steel substrate in order to obtain a silver-containing antibiotic film on the surface of stainless steel. The preparation method comprises the steps of polishing, acetone deoiling, liquid phase plasma electrolysis penetration, flushing and drying. Metallurgical combination exists between the surface antibiosis film prepared through the method and the substrate, so no spalling problem appears, and the antibiotic layer has the advantages of good antibiosis, controllable thickness, simple preparation process and low cost.

Description

technical field [0001] The invention relates to antibacterial stainless steel, in particular to an antibacterial stainless steel containing silver on the surface and a preparation method thereof, belonging to the field of material technology. technical background [0002] With the development of China's economy, stainless steel is more and more widely used in the food industry, catering service industry and family life, and the demand for antibacterial treatment of stainless steel products will also increase. Antibacterial problems have entered cookware, diet, etc. industry. Antibacterial stainless steel refers to the addition of an appropriate amount of metal elements (such as copper, silver, etc.) Antibacterial stainless steel still retains the characteristics of stainless steel itself such as corrosion resistance, good processability, safety and bright appearance. Antibacterial stainless steel has excellent broad-spectrum antibacterial properties and has broad applicati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B15/01C25D11/34
Inventor 张果戈王洛源王兰李文芳叶峰
Owner SOUTH CHINA UNIV OF TECH
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