Photocatalysis colored paint and method for preparing the same

A technology of photocatalysis and color paint, which is applied in the field of photocatalysis color paint, can solve the problems that the application has not been described in detail, and achieve the effects of good wear resistance, mineralization and degradation of environmental pollutants, and improvement of quality

Inactive Publication Date: 2008-12-17
SHENZHEN OCEAN POWER INDUSTRIAL CO LTD +3
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  • Abstract
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Problems solved by technology

[0003] The patent documents disclosed above mainly introduce the anatase phase mesoporous nano-titanium dioxide powder and its preparation method and its application in photocatalytic degradation of pollutants, photolysis of water to produce hydrogen, and solar photoelectrochemical cells. The application in the paint is not described in detail
How to improve the quality of colored paint, enhance the effect of colored paint and expand its application range, the technicians in the colored paint field still need to spend a lot of creative work

Method used

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Effect test

Embodiment

[0016] The anatase phase mesoporous nano-titanium dioxide and the water-based epoxy paint with a weight ratio of 1:99 are dispersed in a disperser at a speed of 3000rmp, and the dispersion time is 30min to prepare a mixed reagent, and then the mixed reagent, liquid epoxy The resin and water are mixed according to the weight ratio of 2.5:1:1.5 to prepare the photocatalytic color paint.

[0017] Among them, the water-based epoxy paint adopts water-based epoxy high-gloss paint 701A; the liquid epoxy resin adopts liquid epoxy resin 701B.

[0018] Coating the prepared photocatalytic color paint on the material, through TiO 2 The photocatalytic effect of the semiconductor is to excite electrons by absorbing light inside the material to generate electron-hole pairs, that is, photogenerated carriers, which quickly migrate to the surface of the material, activate the surface of the material to absorb oxygen and water, and generate active hydroxyl radicals (OOH ) and superoxide anion r...

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Abstract

The invention relates to a photocatalysis colored paint and a preparation method thereof. First of all, mesoporous nanometer titanium dioxide powder is dispersed in an aqueous epoxy colored paint with a dispersion machine to obtain a mixed reagent, wherein, the mesoporous nanometer titanium dioxide powder takes up 1 percent to 5 percent by weight percentage while the aqueous epoxy colored paint takes up 95 percent to 99 percent; and then the mixed reagent, liquid epoxy resin and water are mixed in the proportion of 2-3: 1: 1-2 so as to obtain the photocatalysis colored paint. The photocatalysis colored paint prepared by the preparation method of the invention can not only improve the quality of the colored paint and ensure the colored paint to have high performance of photocatalytic degradation, but also can adopt water as a thinner and has extremely low VOC, strong adhesive force to various base materials, good abrasive resistance, print resistance and good water resistance and alkali resistance and simultaneously has the effect of mineralizing and degrading environmental pollutants and inhibiting and killing bacteria, thus expanding the range of application of the colored paint and obtaining good market efficiency.

Description

technical field [0001] The invention relates to a photocatalytic color paint, and also relates to a preparation method of the photocatalytic color paint. Background technique [0002] The invention patent in China discloses "A Preparation Method of Anatase Phase Mesoporous Nano-Titanium Dioxide Powder" (Publication No.: CN1752017A; Publication Date: 2005.5.24), and its abstract includes: The present invention discloses an anatase A preparation method of mineral-phase mesoporous nano-titanium dioxide powder. The steps are to weigh titanium sulfate and alkyl primary amine hydrochloride, add ethanol under magnetic stirring, and then add water; the second is to adjust the pH of the solution, and age at room temperature; the third is to seal the reaction vessel with adhesive tape, and continue to age at 100°C ; The fourth is after centrifugal separation and washing, the template agent is released with saturated ethanol solution of sodium chloride; the fifth is after washing and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/12
Inventor 陈培虎何唯平
Owner SHENZHEN OCEAN POWER INDUSTRIAL CO LTD
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