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Antibacterial, anti-mildew, anti-virus and anti-oxidation stainless steel and preparation method thereof

A technology for oxidizing stainless steel, antibacterial and antifungal, which is applied in anodic oxidation, coating, electrolytic coating, etc., can solve the problems of thin surface film and low antibacterial performance, and achieve the effect of uniform color, low cost and uniform distribution of components

Active Publication Date: 2021-07-27
同曦集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation process adopts the coating method to infiltrate and plate a layer of copper and cerium-containing infiltrated coating on the surface of the stainless steel substrate, which has the problems of thin surface film and low antibacterial performance.

Method used

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  • Antibacterial, anti-mildew, anti-virus and anti-oxidation stainless steel and preparation method thereof
  • Antibacterial, anti-mildew, anti-virus and anti-oxidation stainless steel and preparation method thereof

Examples

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Effect test

Embodiment 1

[0085] This embodiment provides a method for preparing antibacterial, anti-mildew, anti-virus and anti-oxidation stainless steel. The preparation method includes the following steps:

[0086] (1) Alkaline cleaning and degreasing treatment: put the stainless steel into lye, carry out alkaline cleaning and degreasing under the action of magnetic stirring, and control the temperature to 75°C for 12 minutes, then take out the stainless steel and put it into water Wash with water, stir, and control the water temperature at 25°C for 7 minutes;

[0087] Wherein, the lye comprises sodium hydroxide 60g / L, sodium carbonate 30g / L and sodium phosphate 20g / L, and all the other are deionized water;

[0088] (2) Electropolishing treatment: put the stainless steel after the alkali cleaning and degreasing treatment described in step (1) into the polishing solution, take the stainless steel as the anode, and graphite as the cathode, apply direct current, and control the current density to be 40...

Embodiment 2

[0099] This example provides a method for preparing an antibacterial, mildew-proof, anti-virus and anti-oxidation stainless steel, except that the soaking and solidifying film described in step (5) is omitted, and other conditions are exactly the same as in Example 1.

Embodiment 3

[0101] The present embodiment provides a kind of preparation method of antibacterial anti-mold anti-virus anti-oxidation stainless steel, except that " described film-forming agent in the solid film liquid described in step (5) is cerium nitrate and molybdic acid that mass ratio is 1:1 Sodium" is replaced by "the film-forming agent is only cerium nitrate", and other conditions are exactly the same as in Example 1.

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Abstract

The invention relates to an antibacterial, mildew-proof, anti-virus and anti-oxidation stainless steel and a preparation method thereof. In the preparation method, the stainless steel is firstly pretreated, and then an antibacterial layer is formed on the surface of the stainless steel by an ultrasonic-pulse electrodeposition composite process, and then ultrasonic-anodic oxidation is used. A composite process forms a colored film on the surface of the antibacterial layer to obtain an antibacterial, anti-mildew, anti-virus and anti-oxidation stainless steel. The preparation method of the present invention combines ultrasound with pulse electrodeposition and anodic oxidation respectively, which not only helps to improve the uniformity and coverage of the film layer, but also improves the compactness of the film layer, the content of effective antibacterial components, and the relationship between the film layer and the substrate. The bonding strength between them has been improved, and the prepared antibacterial, mildew, and anti-virus oxidized stainless steel not only has a long-term stable film layer and strong binding ability, but also has long-term antibacterial, anti-mold, and anti-virus properties, and can also achieve uniform color of the film layer, and , the preparation method is low in cost, environmentally friendly and suitable for large-scale promotion.

Description

technical field [0001] The invention relates to the technical field of stainless steel surface treatment, in particular to an antibacterial, anti-mildew, anti-virus and anti-oxidation stainless steel and a preparation method thereof. Background technique [0002] Stainless steel is an alloy material with excellent corrosion resistance, wear resistance and toughness. It has excellent mechanical properties and good chemical stability. It is widely used in the construction industry, furniture appliances, kitchen equipment, automobile industry, office supplies, etc. . With the improvement of living standards, people pay more and more attention to the environment and their own health. If stainless steel materials are in contact with grease during use, bacteria will grow, which will adversely affect people's health. Therefore, in recent years, the research and development of antibacterial stainless steel has become a research hotspot of stainless steel, which can not only maintai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D5/20C25D5/18C25D11/34C25D5/36C25D3/54C25D3/56C25D15/00
CPCC25D3/54C25D3/56C25D5/18C25D5/20C25D5/36C25D11/34C25D15/00
Inventor 陈广川于红光王斐王晶晶
Owner 同曦集团有限公司