Environment-friendly exterior wall paint and preparation method

An external wall paint, environmental protection technology, applied in the field of wall paint, can solve the problems of high total amount, damage to health, environmental pollution, etc., and achieve the effect of performance improvement

Inactive Publication Date: 2016-01-27
CHONGQING FENGYUE BUILDING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing exterior wall paints contain high levels of harmful solvents such as benzene, free formaldehyde, and total volatile organic compounds, which not only damage people's health, but also cause environmental pollution to a certain extent

Method used

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  • Environment-friendly exterior wall paint and preparation method
  • Environment-friendly exterior wall paint and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] An environmentally friendly exterior wall paint, consisting of the following components: 15kg of washed kaolin, 10kg of wollastonite powder with a particle size of 6μm, 6kg of rutile titanium dioxide, 2kg of hydroxyethyl cellulose, 3kg of antifungal agent, 6kg of dodecane, Dispersant 1kg, water-based acid alcohol resin defoamer 2.5kg, octylphenol polyoxyethylene ether series wetting agent 3kg and water 40kg.

[0035] The preparation method of the environment-friendly exterior wall paint is characterized in that the specific steps are:

[0036] A. Weigh according to the ratio of raw materials and reserve;

[0037] B. Add water to the mixer, then add washed kaolin, titanium dioxide, wollastonite powder and dispersant in sequence, and stir at 700 rpm for 15 minutes at 32°C;

[0038] C. Add dodecane, cellulose, wetting agent, defoamer and antifungal agent to the mixture obtained in step B in sequence, and stir at 720 rpm for 15 minutes at 24°C.

Embodiment 2

[0040] An environmentally friendly exterior wall paint, consisting of the following components: 6 kg of washed kaolin, 5 kg of wollastonite powder with a particle size of 8 μm, 9 kg of rutile titanium dioxide, 5 kg of hydroxyethyl cellulose, 1 kg of antifungal agent, 3 kg of dodecane, Dispersant 3kg, water-based acid alcohol resin defoamer 1.5kg, octylphenol polyoxyethylene ether series wetting agent 3kg and water 25kg.

[0041] The preparation method of the environment-friendly exterior wall paint is characterized in that the specific steps are:

[0042] A. Weigh according to the ratio of raw materials and reserve;

[0043] B. Add water to the mixer, then add washed kaolin, titanium dioxide, wollastonite powder and dispersant in sequence, and stir at 650 rpm for 20 minutes at 40°C;

[0044] C. Add dodecane, cellulose, wetting agent, defoamer and antifungal agent to the mixture obtained in step B in sequence, and stir at 750 rpm for 12 minutes at 28°C.

Embodiment 3

[0046] An environmentally friendly exterior wall paint, consisting of the following components: 12 kg of washed kaolin, 6 kg of wollastonite powder with a particle size of 7 μm, 8 kg of rutile titanium dioxide, 3 kg of hydroxyethyl cellulose, 2 kg of antifungal agent, 5 kg of dodecane, Dispersant 2kg, water-based acid alcohol resin defoamer 2kg, octylphenol polyoxyethylene ether series wetting agent 4kg and water 30kg.

[0047] The preparation method of the environment-friendly exterior wall paint is characterized in that the specific steps are:

[0048] A. Weigh according to the ratio of raw materials and reserve;

[0049] B. Add water to the mixer, then add washed kaolin, titanium dioxide, wollastonite powder and dispersant in sequence, and stir at 680 rpm for 18 minutes at 35°C;

[0050] C. Add dodecane, cellulose, wetting agent, defoamer and antifungal agent to the mixture obtained in step B in sequence, and stir at 735 rpm for 13 minutes at 25°C.

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Abstract

The invention relates to environment-friendly exterior wall paint and a preparation method. The total amount of VOCs (volatile organic compounds), the content of benzene, the sum of the content of methylbenzene, ethylbenzene and xylene as well as the content of free formaldehyde in the environment-friendly exterior wall paint are obviously decreased. Compared with the prior art, the paint has the advantages that the total amount of the VOCs in the exterior wall paint is decreased by 27.7%, the content of the benzene is decreased by 29.9%, the sum of the content of the methylbenzene, the ethylbenzene and the xylene is decreased by 26.8%, and the content of the free formaldehyde is decreased by 27%; meanwhile, properties of the exterior all paint in aspects of water resistance, alkali resistance, artificial weather aging resistance, pulverization, color change, stain resistance and temperature change resistance of coatings are obviously improved.

Description

technical field [0001] The invention relates to a wall paint, in particular to an environment-friendly exterior wall paint. Background technique [0002] Exterior wall paint, also called exterior wall paint, is generally used for exterior walls, and can also be used in high-humidity places such as toilets. There are many types of exterior wall coatings, which can be divided into strong acid and alkali resistant exterior wall coatings, pure acrylic elastic exterior wall coatings, silicone self-cleaning elastic exterior wall coatings, advanced acrylic exterior wall coatings, fluorocarbon coatings, pastoral scenery low-carbon series, etc. . [0003] Existing exterior wall paints contain high levels of harmful solvents such as benzene, free formaldehyde, and total volatile organic compounds, which not only damage people's health, but also cause environmental pollution to a certain extent. Contents of the invention [0004] In view of this, the object of the present invention...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): C09D1/00C09D7/12
Inventor杭跃
OwnerCHONGQING FENGYUE BUILDING MATERIAL