Reinforced formaldehyde-decomposed dope and preparation method thereof

A formaldehyde decomposition and enhancement technology, applied in the field of coatings and the preparation of the coatings, can solve the problems of unsuitability for popularization and application, human health hazards, unfavorable formaldehyde decomposition, etc., and achieves efficient removal of formaldehyde gas, good effect and low production cost. Effect

Active Publication Date: 2012-07-11
四川嘉宝莉涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] A certain amount of bactericidal preservatives need to be added in the manufacturing process of traditional interior wall paint products. This part of the additives mainly uses formaldehyde itself to have a bactericidal effect to prevent paint deterioration, mold and other damage, but it will be more or less during the drying process of the coating film The volatilization of formaldehyde gas; the influx of new house decoration has exacerbated the deterioration of indoor air, and low-priced and inferior furniture, walls, and wooden floors are manufactured using man-made composite panels, which use a large amount of adhesives to convert discarded wood These decorative materials will slowly release volatile organic compounds indoors, mainly formaldehyde, benzene and xylene, which will cause great harm to human health.
[0004] Existing formaldehyde-decomposing coatings need to be irradiated by ultraviolet light to decompose formaldehyde, and indoor ultraviolet light is weak, which is not conducive to the decomposition of formaldehyde. If ultraviolet light is added, it will cause harm to the human body and is not suitable for popularization and application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Add 23 parts of water, 0.4 part of dispersant, 0.2 part of wetting agent, 0.2 part of defoamer and 1.5 part of film-forming aid into the mixing container in sequence, mix and stir evenly.

[0040] (2) Slowly add 10 parts of diatomaceous earth to the above-mentioned uniformly stirred mixture, and stir for 15 minutes at a speed of 2200 r / min to prepare a hydrocolloid slurry.

[0041] (3) Under low-speed stirring conditions, slowly add 29 parts of pigments and fillers to the above-mentioned water-based colloid slurry at the same time, increase the speed again after the addition, and stir for 30 minutes at a speed of 1500r / min; the low-speed stirring used in this step The speed is 500-700 r / min, preferably 600 r / min in this embodiment. The pigments and fillers used in the present invention are conventional pigments and fillers, including titanium dioxide, talc and kaolin. The pigments and fillers in this embodiment are selected from titanium dioxide, talc and kaolin. ...

Embodiment 2

[0047] Compared with Example 1, the difference of this example is that this example adds 5 parts of adsorbent, and changes the components of pigments and fillers, photocatalyst, water, and emulsion. That is, 5 parts of sepiolite are added in this embodiment; the pigment and filler are changed to 24 parts, diatomaceous earth is changed to 8 parts, water is changed to 24 parts, and pure acrylate emulsion is changed to 30 parts.

[0048] According to the indicators in GB / T 9756-2009 "Synthetic Resin Emulsion Interior Wall Coatings", the performance of the coating is tested. According to the test results, it shows that the conventional performance indicators of the coating meet the requirements of the national standard.

[0049] The product prepared according to this embodiment was subjected to a formaldehyde purification experiment according to the method described in the national building materials industry standard "Purification Performance of Wall Coating Materials with Air Pur...

Embodiment 3

[0051] Compared with Example 2, the difference of this example is that the photocatalyst is the modified diatomite-loaded nano-TiO from Meishidun Powder Materials Co., Ltd., Linjiang City, Jilin Province. 2 composite material. The difference of this embodiment is that the components of pigments and fillers, photocatalyst, water and emulsion are different; this embodiment uses 22 parts of pigments and fillers, 10 parts of photocatalyst, 21 parts of water and 33 parts of emulsion.

[0052] According to the indicators in GB / T 9756-2009 "Synthetic Resin Emulsion Interior Wall Coatings", the performance of the coating is tested. According to the test results, it shows that the conventional performance indicators of the coating meet the requirements of the national standard.

[0053] The product prepared according to this embodiment was subjected to a formaldehyde purification experiment according to the method described in the national building materials industry standard "Purifica...

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Abstract

The invention discloses a reinforced formaldehyde-decomposed dope and a preparation method thereof. The reinforced formaldehyde-decomposed dope comprises the following components in part by weight: 25-35 parts of emulsion, 20-29 parts of pigment and filler, 1-10 parts of the photocatalyst, 0.3-0.6 parts of dispersant, 0.1-0.3 parts of wetting agent, 1-2 parts of film-forming auxiliary agent, 0.1-0.4 parts of leveling agent, 0.2-0.6 parts of defoamer, 0.3-1 part of thickener, 0.1-0.2 parts of pH regulator, 0.1-0.3 parts of mildew-proof agent and 20-25 parts of water. The reinforced formaldehyde-decomposed dope has a decorative and protective efficacy, has a function of efficiently eliminating formaldehyde gas, can improve indoor environment, and has the advantages of environment friendliness, excellent purifying effect, lasting purifying effect, low cost, simple preparation and the like.

Description

technical field [0001] The invention relates to a coating and a preparation method thereof, mainly to a formaldehyde-removing coating and a preparation method of the coating. Background technique [0002] Formaldehyde is a colorless gas with a strong pungent smell. It is a protoplasm poison that can be combined with proteins. After inhaling high concentrations of formaldehyde, severe respiratory tract irritation, edema, eye stinging, headache and other symptoms will occur; frequent inhalation Formaldehyde can cause respiratory diseases in mild cases, and abnormal liver and lung function in severe cases. [0003] A certain amount of bactericidal preservatives need to be added in the manufacturing process of traditional interior wall paint products. This part of the additives mainly uses formaldehyde itself to have a bactericidal effect to prevent paint deterioration, mold and other damage, but it will be more or less during the drying process of the coating film The volatili...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D5/14C09D7/12
Inventor 黎燕利程俊安顺燕吴建军郭新明杨继化田文斌
Owner 四川嘉宝莉涂料有限公司
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