A temperature-sensitive ceramic with heat-resisting and cold-avoiding functions, its production method and application

Abstract

The invention discloses a temperature-sensitive ceramic with heat-resisting and cold-avoiding functions, a manufacturing method and an application thereof. The temperature-sensitive ceramic includes a conventional ceramic body layer and a functional layer compounded on the surface of the conventional ceramic body layer with the function of heat-resistant and cold-avoiding functions. Or a decorative layer compounded on the surface of the functional layer; the functional layer is a ceramic glaze layer with a porous structure; the pores of the porous structure are micro-closed pores; the physical and chemical properties of the temperature-sensitive ceramics and existing ceramic products without a functional layer consistent. The manufacturing method includes the steps of preparing a ceramic green body layer and preparing a functional layer. The formula system adopted by the ceramic functional layer of the present invention is compatible with the body formula system of existing ceramic products, so that the expansion coefficients of the functional layer and the body layer are consistent, and based on this, a pore-forming agent is added to obtain a heat-resistant and heat-resistant product. The temperature-sensitive ceramics with cold function can effectively solve the discomfort caused by cold or hot when the body touches ceramics, and will not change the physical and chemical properties of existing ceramic products.

Description

technical field [0001] The invention relates to a ceramic formulation technology, in particular to a temperature-sensitive ceramic with functions of resisting heat and avoiding cold, and a manufacturing method and application thereof. Background technique [0002] Existing conventional ceramics can be divided into three types: ceramic ceramics, stoneware ceramics and porcelain ceramics. 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, conventional products can no longer meet people's daily needs in pursuit of high quality, such as when the weather is cold and the body and feet touch the ceramic floor. , discomfort caused by cold; 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 the ceramic, the discomfort caused by hot scalding . [0003] The ...

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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