Brass alloy with macro-hole, micron-hole and nano-hole hierarchical hole structure and application thereof

A brass alloy and nanopore technology, applied in the field of brass alloy preparation, can solve the problems of lack of mechanical integrity of the sample, single antibacterial bacteria, long production cycle, etc., to reduce the complexity of equipment, simple components, antibacterial effect Improved effect
CN106521501AInactive Publication Date: 2017-03-22HEBEI UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEBEI UNIV OF TECH
Publication Date
2017-03-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a brass alloy with a macro-hole, micron-hole and nano-hole hierarchical hole structure and application thereof. The alloy is prepared through the following method including the following steps that (1) a via hole array perpendicular to the surface is formed on a brass cylinder through processing by means of a numerical control processing technology, and then the processed brass cylinder is cleaned and dried; and (2) the obtained multi-hole brass alloy cylinder with the via hole array in the first step is soaked in a nitric acid solution with the mass concentration being 4.5%-6.5%, de-alloying treatment is performed for 10-30 minutes at the temperature of 35-40 DEG C, and the brass alloy with the macro-hole, micron-hole and nano-hole hierarchical hole structure is obtained after cleaning and drying. According to the brass alloy with the macro-hole, micron-hole and nano-hole hierarchical hole structure and the application thereof, the material porosity and specific surface area are increased, and meanwhile, the compression performance is still kept at high level. The fatality rate of escherichia coli and staphylococcus aureus can reach 100% to the maximum degree.
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Description

technical field

[0001] The technical solution of the invention relates to the preparation of a brass alloy, specifically a brass alloy with a macropore-micropore-nanopore multi-level structure and its application. Background technique

[0002] Brass alloys are mainly composed of copper and zinc. Brass has good mechanical properties and low cost, and is widely used in coins, medals, bullet cases, hardware and other fields. Brass also has certain corrosion resistance and antibacterial properties. Among them, antibacterial property refers to the ability of a certain substance to keep the growth or reproduction of certain microorganisms below the necessary level within a certain period of time. Therefore, brass is widely used in water supply and drainage pipes and related parts in daily life. In these applications, the technical treatment of the faucet outlet is closely related to people's health. There are usually some fungi and impurities in domestic water. If the outlet of...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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