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Antibacterial, mildew-proof and antiviral electrophoretic stainless steel and preparation method thereof

An antibacterial and mildew proof, stainless steel technology, applied in the fields of botanical equipment and methods, electrophoretic plating, disinfectants, etc., can solve the problems of thin surface film layer and low antibacterial performance, and achieve good killing effect, low cost, combined with good effect

Active Publication Date: 2021-01-01
ANHUI TONGXI JINPENG ALUMINUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation process uses the coating method to successively plate copper and silver on the stainless steel substrate, and then form an antibacterial and bactericidal film layer with gradient distribution of copper and silver through thermal diffusion, which has the problems of thin surface film layer and low antibacterial performance

Method used

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  • Antibacterial, mildew-proof and antiviral electrophoretic stainless steel and preparation method thereof
  • Antibacterial, mildew-proof and antiviral electrophoretic stainless steel and preparation method thereof
  • Antibacterial, mildew-proof and antiviral electrophoretic stainless steel and preparation method thereof

Examples

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Effect test

Embodiment 1

[0079] This embodiment provides a method for preparing antibacterial, anti-mildew and anti-virus electrophoresis stainless steel, the preparation method includes the following steps:

[0080] (1) Alkaline cleaning and degreasing treatment: put the stainless steel into the lye, stir it, and control the temperature to 80°C for 10 minutes, then take out the stainless steel and put it into water for washing, and apply ultrasound. And control the water temperature to 25°C for 8 minutes;

[0081] Wherein, the lye includes sodium hydroxide 60g / L, sodium carbonate 30g / L, sodium phosphate 20g / L and sodium silicate 7.5g / L, and the rest is water;

[0082] (2) Electropolishing treatment: the stainless steel after the alkaline cleaning and degreasing treatment described in step (1) is put into the polishing liquid, with the stainless steel as the anode and the graphite as the cathode, apply direct current, and control the current density to be 50A / dm 2 , the temperature is 50°C, the tim...

Embodiment 2

[0093] This embodiment provides a preparation method of antibacterial, mildew-proof and anti-virus electrophoresis stainless steel, except that the "primary antibacterial agent" in the anodic oxidation solution described in step (4) is omitted, that is, the "silver nitrate as a primary antibacterial agent 0.5 g / L " is omitted, and other conditions are exactly the same as in Example 1.

Embodiment 3

[0095]This embodiment provides a kind of preparation method of antibacterial, mildew-proof and anti-virus electrophoresis stainless steel, except that the "secondary antibacterial agent" in the cathodic electrophoresis liquid described in step (5) is omitted, that is, the "nitric acid as a secondary antibacterial agent" Silver 0.3% and quaternary ammonium salt bactericide 0.2% " omission, other conditions and embodiment 1 are identical.

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Abstract

The invention relates to antibacterial, mildew-proof and antiviral electrophoretic stainless steel and a preparation method thereof. The preparation method comprises the following steps of: firstly, pretreating stainless steel; then, forming an oxidation film on the surface of the pretreated stainless steel by adopting anodic oxidation treatment; and then, forming an electrophoretic paint film onthe surface of the oxidation film by adopting cathodic electrophoresis treatment to obtain the antibacterial, mildew-proof and antiviral electrophoretic stainless steel. The antibacterial, mildew-proof and antiviral electrophoretic stainless steel obtained by adopting the preparation method disclosed by the invention has double coatings realized by the oxidation film and the electrophoretic paintfilm, and the thickness of the electrophoretic paint film can reach 1-30 microns; the double coatings are good in binding force and high in durability; the adhesive force (tested by a Hundred-cell method) of the electrophoretic paint film is at 0 level; the electrophoretic stainless steel also has long-acting antibacterial, mildew-proof and antiviral properties; the antibacterial rates of the electrophoretic stainless steel to escherichia coli and staphylococcus aureus are both 99% or above, and the mildew-proof level is 0 level; the electrophoretic stainless steel has a relatively good killing effect on viruses such as H1N1 and H3N2; and the antiviral activity rates are both 99% or above.

Description

technical field [0001] The invention relates to the technical field of stainless steel surface treatment, in particular to an antibacterial, mildew-proof and anti-virus electrophoresis 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 not only can mainta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/34C25D13/04C25F3/24A01N59/16A01N33/12A01N25/34A01P1/00A01P3/00
CPCC25D11/34C25D13/04C25F3/24A01N59/16A01N33/12A01N25/34
Inventor 陈广川于红光王斐刘念
Owner ANHUI TONGXI JINPENG ALUMINUM
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