Ceramic glaze modifying additive and preparation method and application thereof

Abstract

The invention discloses a ceramic glaze modifying additive, which is prepared from the following raw materials in percentage by weight: 58 to 65 percent of SiO2, 22.5 to 24.5 percent of B2O3, 5.0 to 7.0 percent of Al2O3, 1.0 to 1.5 percent of Li2O, 1.2 to 1.5 percent of Na2O, 0.8 to 1.2 percent of K2O, 1.0 to 2.0 percent of CaO, 0.5 to 0.8 percent of Fe2O3, 0 to 5.0 percent of TiO2, 0 to 4.0 percent of CeO2, 0 to 5.0 percent of MgO and 0 to 4.0 percent of ZnO. The invention also discloses a preparation method and application of the modifying additive. The modifying additive can make the surface of ceramic glaze stable in strain resistance and smooth and difficultly absorb dirt in the using process, and crusts are easily cleaned without scars; and the surface of the glaze is more stable, cannot be decomposed or damaged, and cannot contaminate foods, and the glaze is particularly suitable for ceramic cookware.

Description

technical field [0001] The invention relates to the technical field of ceramics, in particular to a ceramic glaze additive. Background technique [0002] The glazes used in ceramic cooking utensils currently used, such as rice cooker inner pots, ceramic frying pans, and ceramic saucepans, etc., do not have the function of stain resistance, and are easy to coke with food during use. Not only is it difficult to clean, but also food easily penetrates into the glaze and leaves If there are traces, it will be easy to mold if it takes a long time. For this reason, the prior art has also been improved on this, most of which are coated with a layer of fluorine-containing organic matter on the inner surface of the ceramic cooker, and utilize the non-wetting properties of the fluorine-containing organic matter to make it have a non-stick function, thereby making the ceramic cooker It has the performance of stain resistance and easy cleaning. However, the organic fluorine coating is ...

AI Technical Summary

Problems solved by technology

However, the fluorine organic coating is easily scratched and unstable, and will decompose at high temperature (greater than 250°C), which will lead to the gradual damage of the fluorine organic coating

After the fluorine-containing organic coating on the inner surface of the cooker is damaged, not only the non-stick function is lost, but also the exposed ceramic pot surface is not smooth due to the interaction between the fluorine-containing organic matter and the surface of the ceramic pot, and it is easier to stick to food

In addition, the decomposition products of fluorine-containing organic coatings are toxic and will contaminate food, thereby causing harm to the human body.

Therefore, along with people's continuous recognition of the above-mentioned problems, prior art adopts the non-stick pan of this fluorine-containing organic matter coating to be abandoned gradually

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