Preparation method of novel hydrophobic anti-microbial coating

Abstract

The invention relates to preparation of an anti-microbial coating, and aims to provide a preparation method of a novel hydrophobic anti-microbial coating. The method comprises the following steps: adopting modified fluororesin to film the surface of a clean substrate to prepare a hydrophobic coating; before the hydrophobic coating surface is dried, uniformly coating hydrophobically modified silicon dioxide hollow silver-loaded microspheres on the surface, and after solidifying, obtaining the novel hydrophobic anti-microbial coating. Based on the principle of a biomimetic technology, the method is to embed the mesoporous silica hollow silver-loaded microsphere part in the fluorine-containing organic membrane, on one hand further increases the hydrophobic property of the coating through constructing the nanometer rough coating surface structure, and on the other hand serves a long-lasting antimicrobial function by virtue of the unique structure of the hollow silver-loaded microspheres to slowly release silver ions through the mesoporous channels on the silicon dioxide hollow silver-loaded microsphere surface, so as to achieve integration of the slowly-releasing antimicrobial function and the super-hydrophobic function of the coating.

Description

technical field [0001] The invention relates to the preparation of an antibacterial coating, in particular to a preparation method of a novel hydrophobic antibacterial coating. Background technique [0002] The surface of objects in a humid environment for a long time is prone to mold growth. Hydrophobic treatment of the surface can effectively prevent moisture and dirt from accumulating on the surface of the object and reduce the growth of mold on the surface of the object. At present, fluorine-containing materials with low surface energy are widely used. Generally speaking, the higher the monomer fluorine content, the better the hydrophobic performance, but the price will also increase significantly. By studying the self-cleaning phenomenon of lotus leaves, researchers at the University of Bonn in Germany found that nano-scale wax crystals grow on the surface of lotus leaves, making the surface of lotus leaves hydrophobic. It is not easy to accumulate on its surface, endo...

AI Technical Summary

Problems solved by technology

In addition, the functions of the hydrophobic coatings currently used are generally relatively single. Although some studies have added antibacterial components to the hydrophobic coatings to achieve the integration of hydrophobic functions and antibacterial functions, the antibacterial active components on the surface are easily dissolved and lost in large quantities. , leading to a decrease in the antibacterial persistence of the coating

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