Surface glaze, white enamel and preparation method thereof

Abstract

The invention provides a method for preparing an enamel surface glaze. The method comprises the following steps of: (a) mixing the following raw materials in percentage by weight: 10-20 percent of Na2O, 8-25 percent of B2O3, 35-55 percent of SiO2, 15-25 percent of TiO2, 1-5 percent of CaF2, 0-3 percent of MgO, 0.05-2 percent of CuO, 0.5-4 percent of P2O5, 0-5 percent of CaO, and 1-6 percent of Al2O3, melting at 1200-1300 DEG C and quenching in water to be fusion cakes with the diameter of 1-3 mm; and (b) grinding the nano ZnO with the prepared fusion cakes, a suspending agent, an electrolyte and water in a milling addition mode into the surface glaze. The enamel surface glaze provided by the invention is doped with CuO and added with ZnO in a milling way, and the coating of the prepared enamel has favorable bacterium and mildew resistance, white color and stable luster.

Description

Technical field [0001] The invention relates to the field of enamel, in particular to a preparation method of surface glaze slurry, white enamel, and surface glaze slurry and white enamel. Background technique [0002] Porcelain enamel is a composite material in which inorganic vitreous materials are fused to the base metal and firmly combined with the metal. The coating of enamel is generally composed of two layers. The layer in contact with the metal blank is the intermediate layer, that is, the base glaze. The base glaze is a transition layer that combines with the metal blank. It has strong adhesion. The top glaze is coated on the base glaze. On top, it can cover the background color and give the product a smooth and beautiful surface and excellent physical and chemical properties. Traditional enamel products are widely used in daily life, medicine, chemical industry, environmental protection and other fields. They have good physical and chemical properties, inherent mechani...

AI Technical Summary

Problems solved by technology

[0003] However, enamel has poor anti-bacteria and mold performance, and will absorb various harmful bacteria and molds, which will affect human health.

The antibacterial agents used by people are organic antibacterial agents and inorganic antibacterial agents. Among them, organic antibacterial agents are not heat-resistant and suitable for processing temperatures below 300 ° C. They are not suitable for high-temperature processing of enamel products. After the conventional glaze making method and commonly used materials are fused into porcelain blocks, the color of the porcelain surface is unstable or the antibacterial effect is poor due to reasons such as redox or its own color.