Temperature-sensing ceramic with heat-resistant and cold-proof functions and manufacturing method and application thereof

Abstract

The invention discloses a temperature-sensing ceramic with heat-resistant and cold-proof functions and a manufacturing method and application thereof. The temperature-sensing ceramic comprises a conventional ceramic body layer, and a functional layer which is compounded on the surface of the conventional ceramic body layer and has heat-resistant and cold-proof functions or a decorative layer whichis compounded on the surface of the functional layer. The functional layer is a ceramic glaze layer with a porous structure, pores of which are micro-sized closed pores. The temperature-sensing ceramic has consistent physical properties and chemical properties with existing ceramic products without the application of the functional layer. The manufacturing method comprises steps as follows: preparation of the ceramic body layer and preparation of the functional layer. A formula system adopted by the ceramic functional layer of the invention is adapted to a body formula system of existing ceramic products such that the expansion coefficient of the functional layer is consistent with expansion coefficient of the body layer. On this basis, a pore-forming agent is added to obtain the temperature-sensing ceramic with heat-resistant and cold-proof functions. The discomfort caused by cold or blanching when the body touches the ceramic can be effectively solved, and physical properties and chemical properties of the existing ceramic products will not be changed.

Description

technical field [0001] The invention relates to a ceramic formula technology, in particular to a temperature-sensitive ceramic with the function of heat resistance and cold avoidance, a production method and application thereof. Background technique [0002] Existing conventional ceramics can be divided into three types: pottery ceramics, stoneware ceramics, and porcelain ceramics from the material. Ceramic is a dense material. Although it has good physical and chemical properties, such as high destructive strength, acid and alkali resistance, and weather resistance; however, conventional products can no longer meet people's daily needs for high quality, such as cold weather, when the body and feet touch the ceramic floor. , Discomfort caused by coldness; such as ceramic pots for soup, ceramic cups for hot water and other daily-use ceramic products, in the case of overheating, when the human hand or mouth touches ceramics, discomfort caused by scalding . [0003] The exist...

AI Technical Summary

Problems solved by technology

However, in order to pursue lightweight heat preservation in traditional foamed ceramics, the pores will be made into large pores with a diameter of more than 0.5mm, and some of them are connected pores, which are visible to the naked eye, and the foaming rate is between 70% and 85%. space, which makes the thermal insulation effect of foamed ceramics better, but leads to its low strength, and the shape is not refined and dense enough.

Therefore, in terms of appearance, conventional foamed ceramics are designed as large-sized structural parts with a thickness of more than 20mm, which seriously limits their application range. Currently, they are only used in indoor partition boards or external wall insulation boards.

[0004] At present, there is a lack of ceramics on the market that have the function of heat resistance and cold avoidance, and do not change the technical quality indicators such as the physical and chemical properties of the existing products, which can be applied to architectural sanitary ceramics, daily-use ceramics or arts and crafts ceramics.

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