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Nano internal-wall latex paint for health-care building and preparing method thereof

A kind of interior wall latex paint, nano-type technology, applied in latex paint, coating and other directions, can solve the problems of short efficacy, human poisoning, VOC reduction, etc., achieve excellent wet rub resistance, high anti-mildew and bactericidal ability, good indoor and outdoor Air Quality Effects

Inactive Publication Date: 2007-08-01
广东鸿昌化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, all countries in the world are committed to the research and development of low-VOC latex paints. However, in the latex paint system, it is inevitable to add a variety of additives, such as coalescence aids, leveling agents, antifreeze agents, anti-corrosion and fungicides, etc. Contains organic solvents, so how to reduce the VOC content under the condition of ensuring the quality of latex paint has become a thorny problem
In addition, for anti-mold and sterilization, anti-mold and fungicides containing metal-organic compounds such as mercury, copper, tin, and arsenic are often used. Although they have strong bactericidal power, their efficacy is short and they are also relatively harmful to the human body.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Preparation of low PVC high gloss coatings. The formula is: 50 kg of pure acrylic emulsion (core-shell structure), 0.9 kg of polyacrylate sodium (ammonium) salt dispersant, 0.1 kg of poly(poly)phosphate wetting agent, 0.2 kg of polyether modified silicone emulsion defoamer, 25 kg of rutile titanium dioxide, 3 kg of negative ion release material, 0.3 kg of nanometer pre-dispersion, 2.5 kg of thickener (including 0.1 kg of cellulose thickener, 0.6 kg of alkali-swellable acrylic acid emulsion thickener and non-ionic association Type polyurethane thickener 1.8 kilograms), sodium carbonate 1.2 kilograms, water 16.8 kilograms.

[0042] The configuration process steps are: (1) Compounding of nano pre-dispersion liquid and emulsion: add emulsion into the container, stir at a slow speed (200-400 rpm), add appropriate amount of water to dilute, add nano mother liquor dropwise, after the dropwise addition Continue to stir for about 1 to 2 hours until uniform, set aside. (2) Add ...

Embodiment 2

[0044] Preparation of high PVC flat paint. The formula is: 20 kg of styrene-acrylic emulsion, 0.5 kg of polyacrylate sodium (ammonium) salt dispersant, 0.2 kg of poly(poly)phosphate wetting agent, 0.4 kg of polyether modified silicone emulsion defoamer, 18 kg of rutile titanium dioxide kg, 22 kg of filler (including 15 kg of heavy calcium carbonate of 800 mesh, 3 kg of kaolin of 1250 mesh, 2 kg of talcum powder of 800 mesh, 2 kg of superfine aluminum silicate), 0.5 kg of negative ion releasing material, 2 kg of nanometer pre-dispersion , 2.15 kg of thickener (including 0.35 kg of cellulose thickener, 0.4 kg of alkali-swellable acrylic emulsion thickener and 1.4 kg of non-ionic associative polyurethane thickener), 0.1 kg of sodium hydroxide solution, and 34.15 kg of water .

[0045] The configuration process steps are the same as in Embodiment 1.

Embodiment 3

[0047] Preparation of PVC flat paint. The formula is: 30 kg of emulsion (including 15 kg of pure acrylic emulsion, 15 kg of styrene-acrylic emulsion), 0.45 kg of polymaleate dispersant, 0.15 kg of poly(poly)phosphate wetting agent, polyether modified silicone emulsion 0.5 kg of foaming agent, 16 kg of rutile titanium dioxide, 18.4 kg of filler (including 13 kg of 800-mesh heavy calcium carbonate, 2.6 kg of 1250-mesh kaolin, 1.8 kg of 800-mesh talc, 1 kg of superfine aluminum silicate), anion release 2 kg of materials, 1.0 kg of nano predispersion, 1.8 kg of thickener (including 0.3 kg of cellulose thickener, 0.3 kg of alkali-swellable acrylic emulsion thickener and 1.2 kg of non-ionic associative polyurethane thickener), Potassium hydroxide 0.5 kg, water 29.2 kg.

[0048] The configuration process steps are the same as in Embodiment 1.

[0049] The product prepared by the present invention is sealed and stored in a cool and dry place above 0°C, and the effective use period i...

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PUM

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Abstract

The present invention relates to a nano type health building material wall latex paint and its preparation method. It is made up by using polyvinyls emulsion, dispersing agent, moistening agent, pigment, filling material, nano predispersing liquor, thickening agent, pH regulating agent and water through the processes of combining nano predispersing liquor and emulsion, premixing, high-speed dispersing, blending paint and filtration. At the same time of ensuring that said paint has good physical properties it can make VOC be reduced to minimum value and can improve indoor air quality.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a nano-type healthy building interior wall latex paint used for the protection and decoration of building interior walls. Background technique [0002] Beginning in the 1970s, "bad building syndrome" such as irritation, fatigue, headaches, and memory loss began to appear in developed countries. Many data show that this is related to volatile organic compound (VOC) pollution in building coatings. At present, all countries in the world are committed to the research and development of low-VOC latex paints. However, in the latex paint system, it is inevitable to add a variety of additives, such as coalescence aids, leveling agents, antifreeze agents, anti-corrosion and fungicides, etc. Contains organic solvents, so how to reduce the VOC content under the condition of ensuring the quality of latex paint has become a thorny problem. In addition, for anti-mold and sterilization, anti-mold and f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/00C09D135/00C09D5/02
Inventor 卿宁王佛松欧阳玉章欧阳振图杨泽生马永梅
Owner 广东鸿昌化工有限公司
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