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Self-cleaning ceramic

A self-cleaning, ceramic technology, applied in the field of self-cleaning ceramics, can solve problems such as easy to stick oil and affect the appearance

Inactive Publication Date: 2003-08-20
YUNNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the known ceramics are easy to stick to oil and dust, which affects the external appearance

Method used

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  • Self-cleaning ceramic

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Embodiment Construction

[0007] The technical scheme of the present invention is: the ceramics are cleaned by known methods, and the surface of the ceramics (1) is coated with a layer containing TiO 2 and SnO 2 Composite sol film (2). For TiO 2 and SnO 2 The preparation of the composite sol can adopt the conventional two-step hydrolysis method, that is, the TiO 2 Sol and SnO 2 sol, then the SnO 2 and TiO 2 Sol by SnO 2 The mole percentage is 0.1% to 20% and mixed evenly; titanium alkoxide and tin tetrachloride can also be directly mixed according to the generated SnO 2 The molar percentage is 0.1% to 20% dissolved in an organic solvent and fully stirred, then a certain amount of water is added dropwise for hydrolysis, and after a period of sufficient stirring to obtain TiO 2 / SnO 2 Composite sol. Then it is baked and dried under infrared light, and then placed in a furnace for heat treatment at a temperature of 300°C to 680°C, and the self-cleaning ceramics can be obtained after cooling.

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Abstract

The present invention relates to one kind of self-cleaning ceramic used in the fields of building, daily life and sanitary ware. The self-cleaning ceramic consists of ceramic and photocatalytic film prepared on the surface of ceramic and containing tin dioxide. Under natural light or sunlight, the self-cleaning ceramic can be self cleaned, and can eliminate dirt, kill bacteria, decompose harmful gas in the environment and organic pollutant attached to the surface.

Description

Technical field: [0001] The invention relates to a self-cleaning ceramic, which is used in the fields of architectural ceramics, daily ceramics and sanitary ceramics. Background technique: [0002] Ceramics are widely used in architecture, daily life and many other fields. At present, the known ceramics are easy to stick to oil and dust, which affects the external appearance. In order to overcome the above shortcomings, a layer of photocatalytic and super-hydrophilic film is prepared on the surface of the ceramic, so that the ceramic with this film can not only clean and decontaminate itself, but also have the functions of sterilizing and decomposing harmful gases in the surrounding environment. And these excellent functions of organic pollutants stuck on the surface. Invention content: [0003] The invention provides a self-cleaning ceramic in order to overcome the disadvantages of existing ceramics which are easy to stick to oil and dust. [0004] The technical soluti...

Claims

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Application Information

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IPC IPC(8): C04B41/85
Inventor 柳清菊吴兴惠
Owner YUNNAN UNIV
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