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Nanometer exterior wall coating

A technology of exterior wall coatings and nanomaterials, applied in coatings, latex paints, etc., can solve the problems of easy aging of coatings, resistance to washing, poor weather resistance, etc., to improve pollution resistance, prevent mold growth, and reduce production costs Effect

Inactive Publication Date: 2009-01-07
肇庆千江高新材料科技股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Wall coatings are popular because of their low toxicity, ease of use, and low price. However, currently commercially available wall coatings, such as latex paint [Nippon Paint, etc.], have short service life, are not resistant to scrubbing, and have poor weather resistance. Affected by the external climate, the coating is prone to aging, discoloration, wrinkling, peeling, etc. CN1385483A discloses a modified coating for interior and exterior walls of nanometers, which has better water resistance and pollution resistance than traditional wall coatings after using nanometer materials. , anti-aging, anti-ultraviolet, antibacterial and other performance indicators are better, but its washing resistance is only 11,000 times, and the artificial aging resistance is only 600 hours. In order to further improve the performance of wall coatings, it is necessary to improve the coatings. recipe

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Nano exterior wall paint (white) formula composition:

[0035]

[0036] The nano-silica and nano-titanium dioxide bought from the market are dispersed in the water-soluble nano-scale silica sol carrier by high-speed shearing, and the materials are added according to the formula, stirred, sanded, emulsified, painted, and filtered. The obtained product is a white exterior wall paint, and the test results: 41,000 times of cleaning and scrubbing the inferior material without showing the bottom; artificial weather aging resistance test: 1,000 hours: the test result of the mold resistance of the paint film: the anti-〔anti-〕 mold effect is remarkable, and the product It can effectively prevent the growth of mold after storage and painting walls.

Embodiment 2

[0037] Embodiment 2, nano exterior wall paint [white] formula composition:

[0038]

[0039] The nano-silica and nano-titanium dioxide bought from the market are dispersed in the water-soluble nano-scale silica sol by high-speed shearing, and the materials are added according to the formula, stirred, sanded, emulsified, painted, and filtered. The resulting product is a white exterior paint. The test results: 43,000 times of cleaning and scrubbing without showing the bottom; artificial weather aging resistance test: 0.98 thousand hours: the test result of the mold resistance of the paint film: the effect of preventing (anti) mold is remarkable, and the product can effectively prevent it after storage and coating the wall The growth of mold.

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Abstract

The invention relates to a nano exterior wall coating; the composition by the weight percent is as follows: 40 percent to 50 percent of film-forming latex, 26 percent to 38 percent of pigment and filler, 4 percent to 8 percent of assistant, 0.3 percent to 1 percent of nano powdery material, 1.0 percent to 3.0 percent of water-soluble nano silica sol, and 10 percent to 30 percent of deionized water. The film-forming material can be acrylic latex or pure siloxane-acrylate latex; the pigment and filler is one or more than one type among titanium white powder, mica powder, barium sulfate and aluminum silicate; the assistant comprises one or more than one type among dispersant, wetting agent, foam killer, preservative, thickener, anti-freezing agent, ph regulator and film-forming assistant. The coating of the invention can be washed and brushed for 50000 times without breakage, resist manual climate aging for 1000 times without bubbling, peeling and crackling, has obvious mildew resistant effect and can effectively prevent mildew after being stored and coated on the wall.

Description

technical field [0001] The invention relates to a coating, in particular to a water-based exterior wall coating with nanometer materials. Background technique [0002] Wall coatings are popular because of their low toxicity, ease of use, and low price. However, currently commercially available wall coatings, such as latex paint [Nippon Paint, etc.], have short service life, are not resistant to scrubbing, and have poor weather resistance. Affected by the external climate, the coating is prone to aging, discoloration, wrinkling, peeling, etc. CN1385483A discloses a modified coating for interior and exterior walls of nanometers, which has better water resistance and pollution resistance than traditional wall coatings after using nanometer materials. , anti-aging, anti-ultraviolet, antibacterial and other performance indicators are better, but its washing resistance is only 11,000 times, and the artificial aging resistance is only 600 hours. In order to further improve the perf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D183/07C09D5/02
Inventor 吴嫱葳朱疆明肖富平
Owner 肇庆千江高新材料科技股份公司
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