Formaldehyde-removing paint and preparation method thereof

A technology for coatings and formaldehyde, applied in the field of preparation of formaldehyde-removing coatings, can solve the problems of long release time of formaldehyde and inability to effectively remove formaldehyde, and achieve the effect of improving absorption efficiency

Inactive Publication Date: 2014-01-15
哈尔滨优美涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although natural ventilation, activated carbon adsorption, plant deodorization and other methods can be used, formaldehyde cannot be effectively removed due to the long release time of formaldehyde.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0019] Content of each component:

[0020] Adhesive carboxylated styrene-butadiene latex (15%-20%), dispersant sodium hexametaphosphate (5%-15%), defoamer tert-butanol (5%-10%), adsorption degradation agent activated carbon loaded nano TiO 2 (20%-40%), water (balance).

[0021] Preparation:

[0022] Loading nano-TiO on activated carbon as adsorption degradation agent 2 Add in water and disperse with a high-speed disperser. During the dispersing process, add sodium hexametaphosphate and tert-butanol, disperse for a certain period of time, increase the speed to 4000r / min, and continue dispersing for 35 minutes. Thereafter, reduce the rotational speed to 1500r / min. Add carboxylated styrene-butadiene latex, and the dispersion time is 15 minutes. Finally, adjust the pH value of the coating system to 8.0, and filter through a 200-mesh sieve to obtain a formaldehyde-removing coating.

example 2

[0024] Content of each component:

[0025] Adhesive carboxylated styrene-butadiene latex (17.2%), dispersant sodium hexametaphosphate (12%), defoamer tert-butanol (5%), adsorption degradation agent activated carbon loaded nano TiO 2 (43%), water (balance).

[0026] Preparation:

[0027] Loading nano-TiO on activated carbon as adsorption degradation agent 2 Add in water and disperse with a high-speed disperser. During the dispersing process, add sodium hexametaphosphate and tert-butanol, disperse for a certain period of time, increase the speed to 4000r / min, and continue dispersing for 35 minutes. Thereafter, reduce the rotational speed to 1500r / min. Add carboxylated styrene-butadiene latex, and the dispersion time is 15 minutes. Finally, adjust the pH value of the coating system to 8.0, and filter through a 200-mesh sieve to obtain a formaldehyde-removing coating.

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PUM

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Abstract

The invention relates to a formaldehyde-removing paint and a preparation method thereof, and belongs to the field of functional paints. The formaldehyde-removing paint is characterized by being prepared through following steps: taking carboxylic styrene butadiene latex (15% to 20%) as the adhesive, sodium hexametaphosphate (5% to 15%) as the dispersant, tert-butyl alcohol (5% to 10%) as the antifoaming agent, and active carbon loaded nano TiO2 (20% to 40%) as the absorption degrading agent, then mixing the materials mentioned above according to a certain ratio, and grinding the mixture so as to obtain the paint. The formaldehyde-removing paint has the advantages of good formaldehyde-removing effect and high time utilization rate, and can be widely applied to the indoor places such as family, school, public and hygiene places, cars, and the like.

Description

technical field [0001] The method relates to the preparation of a coating, in particular to the preparation of a formaldehyde-removing coating. Background technique [0002] Formaldehyde is one of the main pollutants in the indoor environment. It can irritate the eyes, respiratory tract, and skin. It can combine with amino acids in proteins to denature proteins. It has been identified as a carcinogenic and teratogenic substance by the World Health Organization. At present, various decorative materials on the market use adhesives with certain formaldehyde content, which will bring certain harm to human health. Although natural ventilation, activated carbon adsorption, plant deodorization and other methods can be used, formaldehyde cannot be effectively removed due to the long release time of formaldehyde. [0003] The formaldehyde-removing coating developed by the present invention uses activated carbon as the adsorbent, and nano-TiO 2 As a degradation agent, activated carb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D113/02C09D7/12
Inventor 刘焕强
Owner 哈尔滨优美涂料有限公司
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