Preparation method for antibacterial aluminum product

Abstract

The invention relates to a preparation method for an antibacterial aluminum product. The preparation method comprises the following steps of interposer forming, activation treatment and antibacterialcoating. In the step of interposer forming, the aluminum product is immersed into an interposer generation solution, and electroless plating is carried out on a substrate to form an interposer, wherein the interposer generation solution contains metal oxide with the activity being between the activity of silver and the activity of aluminum. In the step of activation treatment, the generated aluminum product of the interposer is immersed in an activation solution, the interposer metal phase in a part of the region is corroded, and some activated and defective regions exist on the surface of thealuminum product. In the step of antibacterial coating, the surface of the aluminum product is coated with antibacterial coating liquid containing silver salt, and an effective antibacterial functional layer is formed by an adsorption, reduction and liquid phase deposition reaction and external force. According to the method, the high-binding efficient broad-spectrum silver-containing antibacterial layer is directly formed on the surface of the aluminum product by liquid phase deposition and chemical methods; and through the arrangement of the antibacterial coating solution, silver particleswhich are favorable for adsorption on the surface of the aluminum product are formed, the antibacterial component and the substrate have good bonding force, no heat treatment is required, and the costis saved.

Description

【Technical field】 [0001] The invention relates to a preparation method of an antibacterial product, in particular to a preparation method of an antibacterial aluminum product. 【Background technique】 [0002] At present, with the development of society and the improvement of living standards, people's awareness of health, sanitation, cleanliness, and antibacterial is gradually increasing, and the market demand for antibacterial products is growing. The promotion and application of metal products in daily life will trigger a new revolution in the field of health. [0003] Most metal ions have strong bactericidal power, but after adding metal materials, they form a co-soluble metal alloy material with the matrix metal ions, so when bacteria contact the metal surface, they cannot effectively and continuously sterilize or inhibit bacteria. Metal surfaces cannot achieve or maintain their antimicrobial effect. At present, there are two methods for the preparation of antibacterial...

AI Technical Summary

Problems solved by technology

The antibacterial particles of the first method have formed a strong chemical interaction with the matrix metal phase, so the antibacterial layer formed by this method cannot be continuously precipitated in the aqueous solution, and the antibacterial effect cannot last. The shortcomings of antibacterial particles such as effective and persistent precipitation from the matrix are not conducive to the large-scale production and application of antibacterial metals; the second preparation method generally includes ion beam deposition (IBAD), physical vapor deposition (PVD), chemical vapor deposition (CVD), Process methods such as electrodeposition and chemical sol-gel, related prior art can refer to Chinese Invention Patent No. ZL 98801747.4 titled "A Method for Manufacturing Antibacterial Metal Products", and Chinese Invention Patent No. ZL 94194799.8 titled "Antibacterial Material" etc. However, the antibacterial products produced by this method also have the problem of continuous precipitation of antibacterial particles and the problem of binding force with the matrix, and in most cases, a heat treatment process is required, which consumes a lot of power and equipment investment.