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A process for manufacturing composite ceramic covered with a photocatalyst membrane

A production process and membrane composite technology, which is applied in the field of ceramics, can solve problems such as high cost, complex production process, and unstable product performance, and achieve the effects of improving the environment, efficient and clean air, and simple production process steps

Active Publication Date: 2017-12-15
唐山佐仑环保科技有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problems of complex production process, unstable product performance and high cost of the existing photocatalyst application, the present invention provides a production process of photocatalyst membrane composite ceramics, which is controlled by an aqueous solution of a peroxotitanium complex system added with a surfactant. Spraying process parameters are evenly sprayed on the surface of the ceramic to form a film, and further calcined at a high temperature to obtain a composite ceramic coated with a uniform and dense photocatalyst film, which can make the surface of the film-coated ceramic have a gentle and soft pearly luster and infinitely varied organic colors, and obtain Good antimicrobial, degrades harmful pollutants and odors under both visible light and relative dark conditions

Method used

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  • A process for manufacturing composite ceramic covered with a photocatalyst membrane

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Effect test

Embodiment 1

[0026] The ceramics were washed 3 times with absolute ethanol to remove surface oil stains, and then washed 3 times with distilled water, and dried in a drying oven to obtain ceramics with a dry and clean surface. The starting material is diluted with distilled water to a peroxotitanic acid concentration of 0.1wt.%, to obtain a peroxotitanic acid aqueous solution, and polyether-modified polydimethylsiloxane is added to the peroxotitanic acid aqueous solution, and the polyether-modified polydimethylsiloxane is Dimethylsiloxane accounts for 0.5% of the total aqueous solution, and it is made into a spraying liquid; control the spraying pressure to 0.6MPa, the spraying distance from the nozzle to the ceramic surface is 200mm, the spraying speed is 20cm / s, and the overlap width between one spraying and the previous one 1 / 3, coating amount 200ml / m 2, Spraying at room temperature (20°C), the humidity of the environment is controlled at 40-50%, there is no oil and water in the air, an...

Embodiment 2

[0032] Add 30% hydrogen peroxide (analytical pure) to 1mol / L titanium hydroxide aqueous solution to make peroxotitanium complex system, the volume ratio of titanium hydroxide aqueous solution and 30% hydrogen peroxide is 1:1, complexing Add 10 times the mass of distilled water to dilute the substance system to obtain an aqueous solution of the peroxotitanium complex system, and add 0.5wt.% of the total mass of polyether-modified polydimethylsiloxane to the aqueous solution to make a spray solution ;Spray the spray liquid evenly on the dry and clean ceramic surface, control the spray pressure 0.8MPa, spray distance 200mm, spray speed 20cm / s, lap width 1 / 3, coating amount 400ml / m 2 , Spraying under the conditions of ambient temperature 15°C and humidity 30-40%, there is no oil and water in the air, the air cleanliness is 10000, the measurement shows that the wet film thickness is 0.3mm, dry at room temperature for 30min, and the sprayed liquid film is dry on the surface, that is,...

Embodiment 3

[0037] Wash the ceramic plate once with absolute ethanol to remove surface oil, then wash it three times with distilled water, and dry it in a drying oven to obtain a ceramic plate with a dry and clean surface. When the concentration of peroxotitanic acid is 5wt.%, an aqueous solution of peroxotitanic acid is obtained, and a polyether-modified polydimethylsiloxane accounting for 2wt.% of the total mass is added to the aqueous solution of peroxotitanic acid to make a spraying liquid; Spray the spray liquid evenly on the surface of the dry and clean ceramic plate, control the spraying pressure to 0.8MPa, the spraying distance to 300mm, the spraying speed to 10cm / s, the lap width to 1 / 3, and the coating amount to 100ml / m 2 , Spraying under the conditions of ambient temperature 15°C and humidity 30-40%, there is no oil and water in the air, the air cleanliness is 10,000, the measurement shows that the wet film thickness is 0.2mm, dry at room temperature for 30min, and the sprayed l...

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Abstract

The invention provides a process for manufacturing composite ceramic covered with a photocatalyst membrane, and belongs to the technical field of ceramic. An adopted technical scheme is the process for manufacturing the composite ceramic covered with the photocatalyst membrane. The process includes preparing an aqueous solution of a peroxy-titanium system, with the concentration of the solution being 0.1-5 wt%; adding a surfactant into the aqueous solution to prepare a spraying solution; evenly coating clean and dry ceramic with the spraying solution; drying the surface; performing high-temperature calcination, with the calcination temperature being controlled to be 300-900 DEG C and the calcination time being 10-120 min; cooling the product to room temperature to obtain the composite ceramic. Beneficial effects of the process are that the process has simple and concise steps, is short in consumed time, high in efficiency and low in investment, and can be widely applied in various production lines of manufacture factories; and a product has excellent wear resistance, antibacterial performance and formaldehyde degrading performance, can efficiently clean air, can improve the environment, has beautiful gloss like organic precious stone, and is high-grade, elegant and beautiful.

Description

technical field [0001] The invention relates to the technical field of ceramics, in particular to a manufacturing process of photocatalyst membrane composite ceramics. Background technique [0002] Poor indoor environment is caused by many factors. Interior decoration pollutants, bacteria and viruses gather in dark and humid corners, etc., which are becoming more and more prominent in today's complex environment. Air pollution caused by indoor furniture, such as formaldehyde, benzene, toluene, xylene, and volatile organic compounds (VOC), is mainly hidden in the boards, latex paints, wallpapers, and adhesives used for interior decoration. Another serious threat to human health is the accumulation and residue of bacteria and viruses in the indoor environment, especially in places such as kitchens and bathrooms where food is placed, damp, and poor air circulation, which are prone to odors, etc. These can easily cause health problems, and the more more and more popular among r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/85A47G19/02A47K1/04E03D11/02
CPCA47G19/02A47K1/04C04B41/5041C04B41/52C04B41/85E03D11/02C04B41/4961C04B41/4543C04B41/0072C04B41/5012
Inventor 伦慧东左桂福孟宪光
Owner 唐山佐仑环保科技有限公司
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