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Environment protection-type interior wall paint with formaldehyde purification function and preparation method therefor

An environmentally friendly technology for interior wall coatings, applied in the field of coatings, can solve the problems of unsatisfactory purification effect of pure aldehyde coatings, shortage of resources, and rising prices.

Active Publication Date: 2014-04-09
INNER MONGOLIA YICHEN ENVIRONMENT MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the continuous improvement of people's quality of life, the requirements for environmental protection and health are getting higher and higher. The further requirement for coatings (interior wall paints) is to purify indoor harmful gases such as formaldehyde. At present, air-purifying coatings (interior wall paints) have appeared on the market. , such as Chinese patents: application number 200810243214.6, application number 200910222118.8, wherein titanium dioxide is used as a photocatalyst to achieve the purpose of purifying formaldehyde, but the purification effect of these net aldehyde coatings (interior wall paint) is not ideal, and it needs to be irradiated by ultraviolet rays In order to achieve the purification effect, it is not suitable for the purification of indoor formaldehyde
In addition, Chinese patent applications: application number 200810222375.7, application number 201210558888.1 use composite photocatalysts to purify formaldehyde, but the coatings prepared by them are not ideal for formaldehyde purification under natural light or fluorescent lamp irradiation
In addition, due to the shortage of resources, the price of titanium dioxide used in the production of coatings has been rising all the way, so that the cost of coatings is also rising

Method used

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  • Environment protection-type interior wall paint with formaldehyde purification function and preparation method therefor
  • Environment protection-type interior wall paint with formaldehyde purification function and preparation method therefor
  • Environment protection-type interior wall paint with formaldehyde purification function and preparation method therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Put 35 parts of water into the stainless steel barrel, add 0.2 parts of wetting agent, 0.3 parts of defoamer, 0.5 parts of dispersant, 8 parts of titanium dioxide, 12 parts of Active silicon, 0.96 parts active silicon loaded Ag-AgBr-TiO 2 , 11 parts of heavy calcium, 10 parts of wollastonite, and 4 parts of kaolin, uniformly disperse at this speed for 30 minutes. Adjust the rotation speed to 800r / min, stir the above dispersion system at this rotation speed, and slowly add 16 parts of emulsion at the same time, keep the rotation speed to uniformly disperse for 15min. Adjust the rotation speed to 500r / min, stir the above emulsion at this rotation speed, and slowly add 0.4 parts of cellulose, 0.5 parts of ethylene glycol, 0.6 parts of leveling agent, and 0.5 parts of film-forming aid to maintain the rotation speed After uniform dispersion for 20 minutes, add an appropriate amount of pH regulator to adjust the pH within the range of 8-10. Then stir the above emulsion at a...

Embodiment 2

[0056] Change active silicon and active silicon loaded Ag-AgBr-TiO 2 The amount of addition, add 9 parts of active silicon, 0.72 parts of active silicon loaded Ag-AgBr-TiO 2 , the method for preparing coating is the same as embodiment 1, wherein, water is 33 parts, and wetting agent is 0.3 part, and defoamer is 1.2 parts, and dispersant is 0.8 part, and titanium dioxide is 6 parts, and heavy calcium is 15 parts, Wollastonite is 14 parts, kaolin is 3 parts, emulsion is 16 parts, cellulose is 0.4 parts, ethylene glycol is 0.5 parts, leveling agent is 0.4 parts, and film-forming aid is 0.5 parts.

[0057] The above coatings were sent to the Inner Mongolia Autonomous Region Product Quality Inspection Research Institute for testing according to GB / T9756-2009 "Synthetic Resin Emulsion Interior Wall Coatings". The limit of harmful substances in interior wall coatings of decoration materials was tested, and the test results showed that the coating met the requirements of the limit of...

Embodiment 3

[0060] Change active silicon and active silicon loaded Ag-AgBr-TiO 2 The amount of addition, add 13 parts of active silicon, 1.04 parts of active silicon loaded Ag-AgBr-TiO 2 , the method for preparing the coating is the same as in Example 1, wherein 36 parts of water, 0.3 parts of wetting agent, 1.2 parts of defoamer, 0.8 part of dispersant, 5 parts of titanium dioxide, and 12 parts of heavy calcium, Wollastonite is 12 parts, kaolin is 3 parts, emulsion is 17 parts, cellulose is 0.4 parts, ethylene glycol is 0.3 parts, leveling agent is 0.5 parts, and film-forming aid is 0.4 parts.

[0061] The above coatings were sent to the Inner Mongolia Autonomous Region Product Quality Inspection Research Institute for testing according to GB / T9756-2009 "Synthetic Resin Emulsion Interior Wall Coatings". The limit of harmful substances in interior wall coatings of decoration materials was tested, and the test results showed that the coating met the requirements of the limit of harmful su...

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Abstract

The invention relates to an environment protection-type interior wall paint with a formaldehyde purification function and a preparation method therefor. The paint comprises the following ingredients, by weight, 30-40 parts of water, 3-20 parts of titanium dioxide powder, 9-20 parts of active silicon, 0.5-5 parts of active silicon supported Ag-AgBr-TiO2, 3-5 parts of kaolin and 12-18 parts of emulsion. The active silicon and the active silicon of the active silicon supported Ag-AgBr-TiO2 are both a synthesized product with fly ash as a raw material, and the synthesized product is white powder. Then Ag-AgBr-TiO2 components are loaded on surfaces of the active silicon material through physical absorption, and the mass fraction of Ag-AgBr-TiO2 in the active silicon material is 5-10%. The paint can degrade formaldehyde into CO2 and H2O under a daylight lamp or normal sun light, and is an environment protection paint with a function of purifying indoor harmful gases such as formaldehyde and the like.

Description

technical field [0001] The invention relates to an environment-friendly interior wall paint and a preparation method thereof, in particular to an environment-friendly interior wall paint (interior wall paint) with the function of purifying indoor harmful gases such as formaldehyde and a preparation method thereof, belonging to the technical field of paint. Background technique [0002] Indoor harmful gases such as formaldehyde are harmful substances contained in materials such as building materials, decoration materials and furniture, which are gradually released and endanger human health for a long time. For example, free monomers in emulsions and additives in architectural coatings are prone to produce a large amount of harmful volatiles such as VOC, formaldehyde, and benzene. These volatiles will not only pollute the environment, but also seriously endanger human health and easily cause chronic respiratory diseases. , leukemia, etc. In response to such problems, internat...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D7/12B01J27/135B01J20/10B01J20/28B01J20/30B01D53/02C01B33/18B82Y30/00
Inventor 刘刚孙思哲张永锋白杰张印民王晓燕
Owner INNER MONGOLIA YICHEN ENVIRONMENT MATERIAL
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