Nano titanium dioxide composite water-based building paint having high weathering-resistance

A nano-titanium dioxide, architectural coating technology, applied in coatings, latex paints and other directions, can solve problems such as poor anti-aging performance

Inactive Publication Date: 2004-12-29
大庆油田创业集团
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of the existing water-based architectural exterior wall coatings with poor anti-aging performance, the present invention provides a nano-titanium dioxide composite high weather-r

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0015] The preparation process of nanocomposite coating is as follows:

[0016] (1) Add water to the dispersing tank, then add ethyl hydroxyethyl cellulose at the speed of disperser at 400-500 rpm, stir until completely dissolved, then add diisobutylsulfosuccinic acid in turn Sodium, epoxy ethylene alkylphenol ether, tetrachloroisophthalonitrile, methyl silicone oil, propylene glycol at 600 rpm, mix water and components evenly, add 2,2,4-trimethyl- 1, 3-pentadiene monoisobutyrate, titanium dioxide, and calcium carbonate are stirred at 1200-1500 rpm for 20 kinds, and put into a sand mill to make a white uniform slurry.

[0017] (2), pump the above-mentioned white slurry into the blending tank, add elastic pure acrylate emulsion, pure acrylate emulsion, styrene-acrylic emulsion, methyl silicone oil, hydrophobically modified polyurethane associative thickener, 2-Amino-2-methyl-1-propanol, and finally add nano additives to disperse for 20 minutes, adjust the viscosity to 120-130K...

Embodiment 1

[0021]Embodiment 1, (1), add 130 parts of water in the dispersion tank, then add 0.6 parts of ethyl hydroxyethyl cellulose at the speed of the disperser at 400-500 rpm, stir until all are dissolved, and then add 6 parts of sodium diisobutyl sulfosuccinate, 2 parts of epoxy ethylene alkylphenol ether, 7 parts of tetrachlororesorcinol, 1 part of methyl silicone oil, 15 parts of propylene glycol at 600 rpm, make water Mix well with each component, add 4 parts of 2,2,4-trimethyl-1,3 pentadiene monoisobutyrate, 150 parts of titanium dioxide, 260 parts of calcium carbonate while stirring at 1200- Stir 20 kinds at 1500 rpm, enter the sand mill, and make a white uniform slurry.

[0022] (2), pump the above-mentioned white slurry into the blending tank, add 320 parts of elastic pure acrylate emulsion, 31 parts of pure acrylate emulsion, 17 parts of styrene-acrylic emulsion, 1.2 parts of methyl silicone oil, hydrophobic modified 17 parts of polyurethane associative thickener, 1.5 parts...

Embodiment 2

[0023] Example 2, (1), add 150 parts of water in the dispersion tank, then add 0.4 parts of ethyl hydroxyethyl cellulose at the speed of the disperser at 400-500 rpm, stir until all are dissolved, and then add 4.6 parts of sodium diisobutyl sulfosuccinate, 3 parts of epoxy ethylene alkylphenol ether, 6 parts of tetrachlororesorcinol, 1 part of methyl silicone oil, 25 parts of propylene glycol at 600 rpm, make water Mix evenly with each component, add 3 parts of 2,2,4-trimethyl-1,3 pentadiene monoisobutyrate, 170 parts of titanium dioxide, 250 parts of calcium carbonate while stirring at a speed of 1200- Stir 20 kinds at 1500 rpm, enter the sand mill, and make a white uniform slurry.

[0024] (2), pump the above-mentioned white slurry into the blending tank, add 330 parts of elastic pure acrylate emulsion, 32 parts of pure acrylate emulsion, 17 parts of styrene-acrylic emulsion, 1.2 parts of methyl silicone oil, hydrophobic modified 18 parts of polyurethane associative thicken...

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PUM

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Abstract

The building paint consists of water, hydroxyethyl cellulose, diisobutylsulfo sodium succinate, epoxyvinyl alkylphenol ether, methyl silicon oil, propylene glycol, nano titania assistant and other nine kinds of components. The nano composite weather-resisting titania building paint for outer wall can absorb and scatter ultraviolet ray, and has powerful antiageing performance and wide application.

Description

Technical field: [0001] The invention relates to an exterior wall coating in the technical field of coatings, which belongs to a nano-titanium dioxide composite high weather resistance water-based exterior wall coating for buildings. Background technique: [0002] With the rapid development of my country's construction projects, the quality requirements of construction projects are getting higher and higher. At present, the most prominent problems in the application of water-based architectural exterior wall coatings are aging resistance, poor stain resistance and easy fading. The main reasons are: the sun Ultraviolet rays with high energy in the light destroy the bond energy of organic matter in the paint, degrade the polymer compound into small molecules, and cause aging phenomena such as loss of gloss, fading, and discoloration of the paint. At present, the commonly used coatings with high weather resistance mainly include solvent-based fluorocarbon resin coatings, silicon...

Claims

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Application Information

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IPC IPC(8): C09D5/02C09D133/04
Inventor 李国祥冯辉昌李宏亮赵福君姜春方张富郭富泰杜海波
Owner 大庆油田创业集团
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