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Method for producing photo catalytic self-cleaning enamel

A technology of photocatalysis and enamel, which is applied in the field of preparation of photocatalytic self-cleaning enamel, can solve the problems that have not been seen, and achieve the effects of low production cost, simple process and excellent chemical stability

Inactive Publication Date: 2007-11-07
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there has been no report on enamel with photocatalytic self-cleaning properties so far.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] b. According to the composition of SiO according to the glaze formula 2 43, Al 2 o 3 3,B 2 o 3 16.TiO 2 20,K 2 O2,Na 2 O8, Na 2 SiF 6 6,P 2 o 5 2. Convert various ingredients into quartz, feldspar, borax, titanium dioxide, soda ash, ice crystal, weigh and mix (please specify), put it in a crucible, melt it at 1250 ° C, put it into water to quench after melting, and remove out drying to obtain enamel frit.

[0028] chemical components

Enamel frit

clay

Dielectric

Deionized water

relative weight ratio

100

6

0.1

50

[0029] d. Take a steel plate or cast iron with a certain thickness, carry out derusting and degreasing treatment, and dry it for later use.

[0030] e. Apply enamel glaze to the steel plate by dipping, then dry at 80°C, and fire at 840°C to obtain an enamel substrate.

[0031] f. Preparation of colloidal solution containing titanium dioxide, its chemical composition rang...

Embodiment 2

[0036] b. According to the composition of SiO according to the glaze formula 2 45, Al 2 o 3 1, B 2 o 3 17.TiO 2 19,K 2 O 3 , Na 2 O8, Na 2 SiF 6 7, P 2 o 5 1. Convert various ingredients into quartz, feldspar, borax, titanium dioxide, soda ash, ice crystal, weigh and mix (please specify), put it in a crucible, melt it at 1250 ° C, put it into water to quench after melting, and remove out drying to obtain enamel frit.

[0037] chemical components

Enamel frit

clay

Dielectric

Deionized water

relative weight ratio

100

7.0

0.2

55

[0038] d. Take a steel plate or cast iron with a certain thickness, carry out derusting and degreasing treatment, and dry it for later use.

[0039] e. Apply enamel glaze to the steel plate by dipping, then dry at 80°C, and fire at 860°C to obtain an enamel substrate.

[0040] f. Preparation of colloidal solution containing titanium dioxide, its chemical compositi...

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PUM

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Abstract

The process of preparing photocatalytic self-cleaning enamel includes the following steps: 1. preparing enamel clinker with enamel material quartz, feldspar, borax, etc, through mixing, smelting in a crucible, water quenching and stoving; 2. mixing enamel clinker with clay, dielectric and deionized water, grinding, sieving and stoving to form the enamel; 3. derusting and degreasing steel plate or iron casting, stoving, coating the enamel, stoving and firing to form enameled plate; and 4. soaking the enameled plate in titania colloid solution, vertically drawing, stoving and sintering to form enameled plate with titania film. The process is simple and low in cost, and the prepared self-cleaning enamel material has excellent photocatalytic performance and high chemical stability.

Description

technical field [0001] The invention belongs to enamel production, in particular to a preparation method of photocatalytic self-cleaning enamel. Background technique [0002] Since the discovery of titanium dioxide's photocatalytic properties in 1972, it has been widely used in pollutant price reduction, sterilization and environmental protection due to its high photocatalytic performance, excellent chemical stability, low cost and non-toxicity. [0003] Titanium dioxide will produce more free electrons, free radicals and holes under ultraviolet light or sunlight. They have good redox ability, can sterilize, degrade organic matter, and eliminate nitrogen oxidation in automobile exhaust or air. compounds, sulfides, carbon monoxide, etc., and can also degrade organic matter in wastewater. Titanium dioxide itself is non-toxic and harmless to the human body, resistant to alkali and acid, and is an environmentally friendly material. [0004] At present, steel plate enamel has b...

Claims

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Application Information

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IPC IPC(8): C23D11/00C23D5/02C23D9/00C23D1/00C23D7/00B01J21/06C03C8/12
Inventor 蒋伟忠钱蕙春王允夫王瑛王钢王红玲陈小英陈丽芸
Owner DONGHUA UNIV
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