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Green powdered paint and its prepn

A dry powder coating and environmental protection technology, applied in powder coatings and other directions, can solve the problems of high stability of latex paint and high storage and transportation costs, and achieve the effect of saving chemical raw materials, smooth paint film and process saving.

Inactive Publication Date: 2009-11-11
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an environment-friendly dry powder paint, which can be made into the current traditional latex paint by adding water and stirring during use. Enable latex paint to be packaged and sold in a stable and low-cost storage and transportation form

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The content of each component of the environment-friendly dry powder coating of this embodiment is 9% of redispersible polymer latex powder, 35.3% of white cement, 40% of calcium carbonate, 10% of anatase titanium dioxide, 2% of diatomite, and 1% of bentonite , 0.2% of hydroxypropyl cellulose, 0.2% of defoamer, 2.3% of coloring pigments, put the above-mentioned components into the mixer according to the weight percentage, after mixing evenly, the finished product environment-friendly dry powder coating can be obtained by packaging. During construction, add water to the environment-friendly dry powder paint, mix well and then spray, wherein paint: water = 5:3. The colored dry powder coating of the present embodiment can be used for the decoration of the inner wall of a building.

Embodiment 2

[0035] The content of each component of the environment-friendly dry powder coating of the present embodiment is 16.7% of redispersible polymer latex powder, 27% of white cement, 25% of calcium carbonate, 21% of rutile titanium dioxide, 4% of diatomite, 1.5% of bentonite, 0.2% of hydroxyethyl cellulose, 0.3% of carboxymethyl cellulose, 0.5% of defoamer, 3.8% of coloring pigment, the above-mentioned components are put into the mixer according to the weight percentage, after mixing evenly, the finished product can be obtained by packaging. Dry powder coating. During construction, add water to the environment-friendly dry powder paint, mix well and then spray, wherein paint: water = 5:4. The colored dry powder coating of the present embodiment can be used for the decoration of building exterior walls.

Embodiment 3

[0037] The content of each component of the environment-friendly dry powder coating of this embodiment is 6% of redispersible polymer latex powder, 38% of white cement, 42% of calcium carbonate, 6% of anatase titanium dioxide, 6.4% of diatomite, and 1% of bentonite , 0.3% of methyl cellulose, 0.3% of defoaming agent, put the above-mentioned components into the mixer according to the weight percentage, after mixing evenly, the finished product environment-friendly dry powder coating can be obtained by packaging. During construction, add water to the environment-friendly dry powder paint, mix well and then spray, wherein paint: water = 10:7. The white powder coating of the present embodiment can be used for the decoration of the interior walls of buildings.

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Abstract

The invention discloses an environment-friendly dry powder coating and a preparation method thereof. The environment-friendly dry powder coating is composed of the following substances in weight percent: 5-20% of redispersible polymer latex powder, 20-40% of white cement, and calcium carbonate 20-45%, titanium dioxide 5-25%, diatomite 2-8%, bentonite 1-2%, cellulose ether 0.2-0.5%, defoamer 0.2-0.5%, coloring pigment 0-4%. Put each component material into the mixer according to the weight percentage, after mixing evenly, pack it to make the finished environment-friendly dry powder coating. At the construction site, it can be used as soon as the water is adjusted. Forming from the bottom to the surface at one time, saving time and process, without any volatile irritating substances, truly zero VOC, water scrubbing, smooth paint film, high hardness, high strength, aging resistance, and crack resistance. It is a substitute for traditional glue putty, Latex paint is a two-in-one new wall decoration product, which is widely used in the decoration of interior and exterior walls of buildings.

Description

technical field [0001] The invention belongs to the field of dry powder coatings, in particular to an environment-friendly dry powder coating and a preparation method thereof. Background technique [0002] With the development of science and technology, people's understanding of environmental protection and sustainable development is getting deeper and deeper. In the coatings industry, it is the general trend to replace the heavily polluting solvent-based coatings with water-based coatings and powder coatings, and water-based coatings have been widely used. However, the architectural water-based latex coatings currently used are composed of polymer emulsions, pigments and fillers, various additives and water. Among them, additives and water are used for the production and storage of coatings, accounting for more than half of the weight and price of coatings. Most of the water-based architectural latex paint is water (about 60%), and the solid content is only 40%. The storag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/06C09D5/03
Inventor 张心亚谢德龙黄洪陈焕钦
Owner SOUTH CHINA UNIV OF TECH
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