Radiation cooling ceramic tile with a microporous structure and a method for producing the same

Abstract

The application relates to the technical field of building ceramics, and discloses a multi-porous structure radiation refrigeration ceramic tile and a preparation method thereof, which comprises a bottom glaze layer and a reflective heat insulation surface glaze layer. The raw materials of the bottom glaze layer include kaolin, calcined kaolin, porous alumina powder, quartz, calcined talc, nepheline, potassium feldspar, sodium feldspar, trivalent europium ion doped magnesium aluminum spinel powder and zirconium silicate. The raw materials of the reflective heat insulation surface glaze layer include kaolin, titanium white powder, titanium wolframite crystal frit, zirconium white frit, potassium feldspar, wollastonite and zeolite powder. The raw materials of the zirconium white frit include kaolin, zirconium silicate powder, quartz, zinc oxide, tricalcium phosphate and fluxing components. The raw materials of the titanium wolframite crystal frit include kaolin, titanium dioxide, quartz, potassium feldspar, calcite and wollastonite. Through the synergistic design of the specific bottom glaze layer and the reflective heat insulation surface glaze layer, the problem that the radiation refrigeration performance of conventional ceramic tiles fluctuates greatly with the sintering environment, and the mismatch between the expansion coefficients of the glaze surface and the body leads to structural failure is solved.

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