Imitated-marble whole-body ceramic tile and preparation method thereof

Abstract

The invention discloses an imitated-marble whole-body ceramic tile comprising a whole-body green tile layer and an overglaze layer distributed on the whole-body green tile layer; the whole-body green tile layer comprises the raw materials in percentage by weight: 22-40% of potassium sand, 15-30% of sodium potassium feldspar, 10-20% of potassium feldspar, 10-22% of black clay, 2-10% of kaoline, 2-6% of bentonite, 1-4% of raw talcum and 2-10% of pigment; and the overglaze layer comprises the raw materials in percentage by weight: 30-60% of sodium potassium feldspar, 15-30% of kaoline, 5-10% of wollastonite, 5-10% of aluminum oxide, 2-8% of talcum, 2-10% of zinc oxide and 10-20% of calcium carbonate. By using the imitated-marble whole-body ceramic tile, the problem that the whole-body ceramic tile is difficult to oxidize in a firing process is solved, the whole-body ceramic tile of which the thickness is larger than 1cm can be prepared, the whole-body ceramic tile is good in oxidization performance, and pinholes, black lines, air bubbles and the like are not easy to produce in an intermediate layer; and meanwhile, due to the regulation of components and proportion of an overglaze, the problem that the texture of the overglaze of the whole-body ceramic tile cannot reach the surface texture of natural marble is solved, and the surface texture of the whole-body ceramic tile is closer to that of the natural marble.

Description

technical field [0001] The invention relates to the field of decorative building materials, in particular to a marble-like full-body ceramic brick and a preparation method thereof. Background technique [0002] Natural marble is a metamorphic rock formed by the original rock in the crust through high temperature and high pressure in the crust. It is a medium-hard stone, mainly composed of calcite, limestone, serpentine, and dolomite. Because it contains impurities, and calcium carbonate is easily weathered and eroded by the action of carbon dioxide, carbide, and water vapor in the atmosphere, the surface quickly loses its luster. Natural marble is one of the commonly used decorative stones. It is rich in varieties and has a long history of use, which can highlight the nobility and elegance of buildings. Natural flower marble is dense but not hard, and the texture is natural and smooth. It is a stone decoration material that is more and more popular and sought after. Howev...

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Problems solved by technology

[0003] The thickness of natural marble is thicker than ordinary ceramic tiles, so the thickness of imitation natural marble ceramic tiles is also thicker than ordinary ceramic tiles. The thickness of ordinary ceramic tiles is generally about 1cm. When using high-quality ceramic tiles, it is easy to cause defects such as melting deformation during sintering, poor light transmission, low strength, and large shrinkage after firing.

In addition, the simulation effect of imitation marble ceramic tiles on the market is not good. Among them, the surface glaze of imitation marble ceramic tiles is easy to affect the exhaust of the green body after the ceramic tiles are melted at low temperature, which not only reduces the overall performance of the whole brick, but also makes the color less developed. Good, resulting in a decrease in simulation

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