Method for manufacturing nanometer antibacterial ceramic glaze layers

Abstract

The invention belongs to the field of inorganic nonmetal materials, particularly discloses a method for manufacturing nanometer antibacterial ceramic glaze layers, and relates to methods for manufacturing ceramic glaze layers. Antibacterial elements are added into ceramic glaze layer bases to carry out antibacterial disinfection on the ceramic glaze layers. Precursors for superfine powder of the nanometer antibacterial ceramic glaze layers comprise 45-60% of SiO<2>, 10-14%of Al<2>O<3>, 7-10% of CaO, 5-7% of ZnO, 2-5% of CuO, 3-6% of MgO, 1-3% of TiO<2> and 0.2-2% of Ag<2>O. The method includes filling graphite containers with the precursors for proportionally preparing the superfine powder of the nanometer antibacterial ceramic glaze layers; preserving heat for 120min-240min under argon atmosphere protection and the condition of temperatures of 1250-1400 DEG C to carry out synthesis; adding absolute ethyl alcohol into a ball-mill to carry out mechanical ball-milling for 24 hours so as to obtain the superfine precursor powder with crystal grain sizes of 30-80nm. The method has the advantages that metal grains of zinc, copper, magnesium and silver are fine and are uniformly distributed in glaze layers, the diameters of the metal grains are 30-80nm, and antibacterial elements can be quickly, durably and continuously released.

Description

technical field [0001] The invention belongs to the field of inorganic non-metallic materials, in particular to a method for preparing a nanometer antibacterial ceramic glaze layer, and relates to a method for preparing a ceramic glaze layer for antibacterial and antivirus by adding antibacterial elements to a base body of the ceramic glaze layer. Background technique [0002] At present, ceramics are widely used, among which ceramics are in great demand in life, such as tableware, sanitary ware, etc., a layer of glaze is usually attached to the surface of ceramics. Glaze is a colorless or colored glassy thin film covering the surface of ceramic products. layer, the thickness of which is usually 0.2-0.8mm. It is made of mineral raw materials (feldspar, quartz, talc, kaolin, etc.) and chemical raw materials in a certain proportion (some raw materials can be made into frits first), and then ground to make glaze slurry, which is applied to the surface of the green body and calc...

AI Technical Summary

Problems solved by technology

Although the production method of the antibacterial ceramics is very simple, the glaze layer is essentially a chemically stable inorganic non-metallic material, and metal ions enter the ceramic glaze layer through interdiffusion or self-diffusion is very limited.

In the patent No. 961104791, a gas phase precipitation method is proposed, but the method is complicated in process and high in cost

At the same time, the high-temperature sintering method of the glaze containing metal ions is easy to produce the volatilization of anti-virus metal ions

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