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Method for improving antimicrobial activity of stainless steel product

An antibacterial activity, stainless steel technology, applied in the fields of botanical equipment and methods, chemicals for biological control, liquid chemical plating, etc. The effect of improving adhesion

Inactive Publication Date: 2020-04-17
SUZHOU INDAL PARK HJCLEAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a method for improving the antibacterial activity of stainless steel products, the production process is simple and easy to operate, and the cost is low, and the traditional production process of antibacterial stainless steel is complicated and the cost is high. Improvements have been made

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039]Clean the stainless steel with 95% ethanol for 1-3min, and deionized water for 2-10 minutes; soak the cleaned stainless steel in a K30 polyvinylpyrrolidone solution with a mole fraction of 3% and a relative molecular mass of 40,000 for 12 hours, and in Add PEI active agent (polyethyleneimine) relative to polyvinylpyrrolidone quality 1% in the solution; The stainless steel that will handle is put into 5 * 10 quickly -4 mol / L AgNO 3 Solution and soak for 2.5 hours; take out and dry at 60°C for 3 hours; repeat the above operation 10 times. After testing, under the same conditions, the antibacterial ability against microorganisms such as Escherichia coli can reach more than 99%.

Embodiment 2

[0041] Clean the stainless steel with 95% ethanol for 1-3 minutes, and deionized water for 2-10 minutes; soak the cleaned stainless steel in a K60 polyvinylpyrrolidone solution with a mole fraction of 2% and a relative molecular mass of 160,000 for 20 hours, and in Add PEI active agent (polyethyleneimine) relative to polyvinylpyrrolidone quality 2% in the solution, temperature is maintained at 40 ℃; -4 mol / L AgNO 3 Solution and soak for 2.5 hours; take out and dry at 60°C for 3 hours; repeat the above operation 10 times.

Embodiment 3

[0043] Clean the stainless steel with 95% ethanol for 1-3 minutes, and deionized water for 2-10 minutes; soak the cleaned stainless steel in a K60 polyvinylpyrrolidone solution with a mole fraction of 2% and a relative molecular mass of 160,000 for 20 hours, and in Add PEI active agent (polyethyleneimine) relative to polyvinylpyrrolidone quality 3% in the solution; The stainless steel that will handle is put into 8 * 10 quickly -4 mol / L AgNO 3 Solution and soak for 6 hours; take out and dry at 60°C for 3 hours; repeat the above operation 10 times.

[0044] The antibacterial stainless steel products prepared in the above examples were placed in the air for 30 days, and the antibacterial experiment results showed that their morphology was not changed under a microscope, and the surface of the stainless steel products had good stability and antibacterial activity.

[0045] The technical parameters in the production process of the present invention can be precisely controlled, so...

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Abstract

The invention provides a method for improving the antimicrobial activity of a stainless steel product. The method comprises the following steps that a, stainless steel is subjected to ultrasonic cleaning; b, the stainless steel obtained in the step a is soaked in a polyvinylpyrrolidone solution; c, the stainless steel in the step b is fast soaked with an AgNO3 solution and is stirred; d , the stainless steel prepared in the step c is dried; and e, the above steps are repeated 6-15 times, and the antimicrobial stainless steel product can be obtained. The method is simple in process and high incontrollability, and the treated stainless steel has a good antibacterial property. The surface of the stainless steel is pretreated in advance, so that the surface of the stainless steel is higher inantibacterial capacity, and the stainless steel can be widely applied to various fields that the stainless steel is adopted as a material and the antibacterial property is needed.

Description

technical field [0001] The invention relates to the field of antibacterial products, in particular to a method for improving the antibacterial activity of stainless steel products. Background technique [0002] Antibacterial stainless steel uses stainless steel as a carrier, adding some antibacterial metal elements such as nano-silver as an antibacterial agent, so that it has both the corrosion resistance and excellent antibacterial performance of stainless steel. Nano-silver will not affect its function in short-term washing; it has natural color, can adjust color, does not affect dyeing after application, can completely replace lead-based and tin-based welding, long-term use of very little nano-silver can produce strong bactericidal effect, can Kill more than 650 kinds of bacteria in a few minutes, broad-spectrum sterilization without any drug resistance, can promote wound healing, cell growth and repair of damaged cells, without any toxic reaction, and no irritation to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/42C23C18/16A01N59/16A01N25/08A01P1/00
CPCA01N25/08A01N59/16C23C18/166C23C18/42
Inventor 曾世清周雪峰
Owner SUZHOU INDAL PARK HJCLEAN TECH
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