Antibacterial antiviral stainless steel and preparing method thereof

Abstract

The invention relates to antibacterial antiviral stainless steel and a preparing method thereof. The preparing method comprises the following steps that firstly, stainless steel is subjected to anodicoxidation, and an anodic oxidation film with micro holes is formed on the surface of the stainless steel; secondly, soaking and primary heating are carried out in sol A; and the thirdly, soaking andsecondary heating are carried out in sol B, and the antibacterial antiviral stainless steel is obtained, wherein the sol A comprises butyl titanate, and the sol B comprises valaciclovir hydrochlorideand acyclovir. The preparing method mainly decomposes the butyl titanate in the sol A into nanometer titania through primary heating, through two times of sol soaking and heating treatment, the nanometer titania and valaciclovir hydrochloride and acyclovir compounded antibacterial antiviral components are attached to the interiors and the surfaces of the micro holes of the anodic oxidation film, the stainless steel has the good and durable antibacterial antiviral performance, and the preparing method is easy to operate, and beneficial to large-scale popularization.

Description

technical field [0001] The invention relates to the technical field of metal material surface treatment, in particular to an antibacterial and antiviral 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, the research and development of antibacterial stainless steel has become a research hotspot of new functional stainless steel in recent years, which can not only maintain the mechanical ...

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Problems solved by technology

For example, CN202619086U discloses a commercial photocatalyst antibacterial self-cleaning stainless steel workbench, which is provided with a titanium dioxide coating on the surface of the stainless steel workbench, so that the stainless steel workbench can efficiently kill bacteria and viruses on the outer surface under ultraviolet irradiation, and also has oil pollution. Self-cleaning function, but the stainless steel workbench uses the photocatalytic properties of titanium dioxide to kill viruses and bacteria, and can only be killed under light, which greatly limits the use environment of the stainless steel workbench

[0005] CN108950498A discloses a preparation method of antibacterial stainless steel plate, including grinding and polishing, pickling and alkali washing, plasma infiltration molybdenum treatment, hot rolling compaction treatment, passivation treatment and preparation of antibacterial layer, the preparation method is prepared by molybdenum layer and passivation The double protection of the antibacterial layer improves the wear resistance and corrosion resistance of the stainless steel surface layer, and improves the antibacterial performance of the stainless steel through the surface antibacterial layer. However, the antibacterial layer is formed by soaking and calcining the antibacterial liquid. Easy to peel off, resulting in greatly weakened antibacterial performance

[0006] CN108950575A discloses a preparation process of antibacterial stainless steel, including cleaning, grinding and polishing, pickling passivation, alkaline water washing and neutralization, vacuum coating, hot pressing sintering, infiltration plating, sintering and annealing, wherein the antibacterial components in the antibacterial solution Vacuum coating, hot pressing sintering, infiltration, sintering and annealing are required to penetrate and fix on the surface of stainless steel, which is not only cumbersome to operate, but also consumes a lot of energy, so it is not suitable for large-scale promotion

Among the various methods to deal with virus infection, although the antiviral vaccine is the most effective method, due to the specificity of the vaccine, it can only prevent the infection of specific viruses. Therefore, it is necessary to develop antiviral vaccines that can effectively kill various viruses. Virus materials, especially virus-resistant stainless steel

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