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Natural nano thickening leveling auxiliary agent for emulsion paint coating and preparation method thereof

Inactive Publication Date: 2008-02-13
TIANJIN UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] CN1451433A "Nano additives for water-based architectural coatings and preparation method thereof" describe a composition and production method of nano additives, which include nano-zinc oxide and nano-calcium carbonate ultrafine powder and stabilizer, dispersant, A colloid composed of PH regulator, defoamer, humectant, and bactericide. The nanoparticles in this colloid are evenly dispersed, thus solving the problem that nanoparticles are easily aggregated into agglomerates in the prior art
However, the composition and function of the thickening and leveling materials in this nano-auxiliary are not involved in this patent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A kind of natural nano thickening and leveling aid of latex paint coating, its composition component and the weight of each component are respectively:

[0032] Nano-rutile titanium dioxide slurry: 30 kg;

[0033] Xanthan gum: 3 kg;

[0034] Clean water: 67 kg.

[0035] The steps of the preparation method are:

[0036] (1). Add 67 kg of clean water to the paint disperser, and slowly add 3 kg of xanthan gum under stirring until it becomes a uniform colloidal liquid;

[0037] (2). Add 30 kg of slurry containing nano-rutile titanium dioxide with a concentration of 20% in the colloidal liquid, and after stirring and dispersing, it will form a uniform colloid, which is the natural nano-thickening and leveling aid of this latex paint coating The finished product contains 6.0% of nanometer rutile titanium dioxide in the auxiliary finished product.

Embodiment 2

[0039] A kind of natural nano thickening and leveling aid of latex paint coating, its composition component and the weight of each component are respectively:

[0040] Mixed slurry containing silver-loaded nano-anatase titanium dioxide and nano-ZnO: 35 kg;

[0041] Carrageenan: 5 kg;

[0042] Clean water: 60 kg.

[0043] The steps of the preparation method are:

[0044] (1). Add 60 kg of clean water to the paint disperser, and slowly add 5 kg of carrageenan under stirring until it becomes a uniform colloidal liquid;

[0045] (2). Add 35 kilograms of slurry containing silver-loaded nano-anatase titanium dioxide and nano-ZnO (weight ratio is 1: 1) and its concentration is 15% in the colloidal liquid, and it is a uniform glue after stirring and dispersing. The body is the natural nano-thickening and leveling aid product of the latex paint coating, and the concentration of silver-loaded nano-anatase titanium dioxide and nano-ZnO in the finished product is 5.25%.

Embodiment 3

[0047] A kind of natural nano thickening and leveling aid of latex paint coating, its composition component and the weight of each component are respectively:

[0048] Contains nano-rutile titanium dioxide and nano-SiO 2 , Nano AL 2 o 3 Mixed slurry: 50 kg;

[0049] Mixed food gum of locust bean gum and gum arabic: 2 kg;

[0050] Clean water: 48 kg.

[0051] The steps of the preparation method are:

[0052] (1). Add 48 kg of clean water to the paint disperser, slowly add 2 kg of locust bean gum and gum arabic mixed food gum (weight ratio 1:1) under stirring until it becomes a uniform glue Liquid;

[0053] (2). Adding nano-rutile titanium dioxide and nano-SiO with a nano-oxide concentration of 10% in the colloidal liquid 2 , Nano AL 2 o 3(Its weight ratio is 1: 1: 1) 50 kilograms of mixed slurry, after stirring and dispersing, it is a uniform colloid, which is the natural nano thickening and leveling aid finished product of this latex paint coating, in the aid finished...

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Abstract

The present invention provides a natural nanometer thickening flow-additive for the latex paint and the preparation method; the food gel in the natural series is used with one or a plurality of nano-oxides to dissolve, expand, combine and modify; the nano-material is evenly distributed in the serial food gel without gathering but in the high-energy state; and the nano-material has the good compatibility with the water, natural and polymer emulsion. The latex paint colloid prepared with the additive of the present invention can be evenly distributed without the stratified layer, and has the good can-opening effect; according to the different uses, the present invention can make the thickening flow-additive for the latex paint with the functions such as the anti-UV performance, the photodegradation, the photocatalytic and self-cleaning performance, the sterilization and prevention of the mildew, the prevention of pollution and superhard performance, the release of the negative ions, and so on.

Description

technical field [0001] The invention belongs to the field of latex paints, in particular to a natural nanometer thickening and leveling aid for latex paints and a preparation method. Background technique [0002] The role of additives in traditional latex paint is very important, and it is also the research object of domestic and foreign companies competing with each other. The annual output value of additives used in coatings in the world is about tens of billions of dollars, and most of the domestic market is occupied by many foreign companies. . Most of the additives used as paint latex paint are harmful to the human body, which has been a matter of great concern to people at home and abroad for many years. With the enhancement of people's advocating nature and environmental awareness, it provides a broader application prospect for biological and fermentation surfactants, and may become a substitute or upgrade for chemically synthesized surfactants. Thickening and level...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/06C09D5/02C09D7/47
Inventor 田福祯李儒生张海丽刘芬马庆奎何长平焦寅朱琳
Owner TIANJIN UNIV OF SCI & TECH
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