Dry powder paint for construction as well as preparation method and use method thereof

A dry powder coating and construction technology, applied in powder coatings, coatings, etc., can solve the problems of less high-performance dry powder coatings and single products, and achieve the effect of convenient transportation and stable storage.

Inactive Publication Date: 2010-04-21
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still very few studies on the use of latex powder to prepare high-performance dry powder coatings that can be thinly coated with properties equivalent to those of traditional latex coatings.
[0009] In short, judging from the actual situation at home and abroad, the architectural dry powder coating products on the market are relatively single, and there are many homogeneous

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0054] Example 1

[0055] In a newly-built residential area, in order to move in immediately after completion, the head of the household requires that there is no peculiar smell similar to that released by traditional latex paint, and the product of the present invention is used for interior wall decoration. The formula is (total weight is 100 kg): 30 kg redispersible ethylene-vinyl acetate copolymer (EVA) binary copolymer latex powder, 40 kg titanium dioxide, 10 kg calcium carbonate, 8.1 kg calcined kaolin, and talc 10 kg, 0.5 kg methyl cellulose ether, 0.2 kg solid defoamer, 0.8 kg solid dispersant, 0.3 kg solid thixotropic agent, 0.1 kg iron oxide red. When mixing, pour clean water into the mixer, the amount is 2.5 times of the dry powder paint, stir for 15 minutes, then let it stand for 12 minutes, and then stir for 3 minutes before use. The dry powder paint after mixing with water is applied by roller coating on the surface after the putty is made and leveled. Before rolle...

Example Embodiment

[0056] Example 2

[0057] The old wall inside the conference room of a company was renovated. The formula is (total weight is 100 kg): 15 kg redispersible vinyl acetate / ethylene / vinyl versatate terpolymer latex powder, 33 kg titanium dioxide, 38 kg calcium carbonate, 8 kg talc, methyl 0.1 kg of cellulose ether, 0.3 kg of solid defoamer, 0.4 kg of solid dispersant, and 0.2 kg of solid thixotropic agent. When mixing, pour clean water into the mixer, the amount is 3 times of the dry powder paint, stir for 15 minutes, then let it stand for 10 minutes, and then stir for 2 minutes before use. Because it has not been modified for many years, the walls collect a lot of dust and part of the wall falls off. The old wall was cleaned first, dust, floating layer and alkali layer were removed, and then putty was used to repair the wall. The putty was scraped on the 5th day after the repair, and smoothed with sandpaper after the initial drying, and the dry powder paint of the present inventi...

Example Embodiment

[0058] Example 3

[0059] In order to establish a high-end and environmentally-friendly shopping mall concept, the sales hall of a newly-built real estate was delivered as soon as possible and decorated with this dry powder coating. The formula is (total weight is 100 kg): 50 kg redispersible styrene-acrylate copolymer latex powder, 28.3 kg calcium carbonate, 10 kg calcined kaolin, 0.3 kg methyl cellulose ether, and 0.6 kg solid defoamer , 0.2 kg of solid dispersant, 0.6 kg of solid thixotropic agent, 10 kg of iron oxide red. When mixing, pour clean water into the agitator, the amount is twice that of the dry powder paint, stir for 15 minutes, then let it stand for 10 minutes, and then stir for 2 minutes before use. The spraying method is used for construction, and the painted wall is smooth, smooth and colorful, odorless, and pollution-free. It will start business the next day after the decoration is completed.

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PUM

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Abstract

The invention relates to dry powder paint for construction, which is prepared from polymer latex powder, titanium pigment, calcium carbonate, calcined kaolin, talcum powder, cellulose ether, a solid defoaming agent, a solid dispersing agent, a solid thixotropic agent and coloring pigment. The preparation method of the dry powder paint comprises the following steps: putting the components of the dry powder paint into a dry powder mixer for mixing for 20-40min, and then, removing bigger particles by using a vibratory screen with 120 meshes. The use method of the dry powder paint comprises the following steps: carrying out surface pretreatment on a wall body; pouring the dry powder paint into clear water and stirring and mixing evenly, standing, and then stirring again; and applying the obtained liquid paint by adopting a roller painting, spray painting or brush painting mode. The formed paint film has the characteristics of good water resistance, alkali resistance, weather resistance, washing resistance, dirt resistance and the like, has the performances of the traditional latex paint and does not contain components of VOC (zero VOC), heavy metals and the like harmful to the environment and the human health.

Description

technical field [0001] The invention relates to the technical field of architectural coatings, in particular to an environment-friendly architectural dry powder coating, its preparation method and application method. Background technique [0002] The paint industry has become an important part of a country's national economy, and the paint output and per capita output have become one of the important symbols for measuring the economic level of countries in the contemporary world. However, the paint industry itself has the characteristics of polluting the environment. This has aroused great concern of the whole society. Therefore, vigorously developing environment-friendly coatings is the general trend of the development of coatings in the world. At present, many design activities of resins and coatings are centered on reducing volatile organic compounds (Volatile Organic Compound, abbreviated as VOC), and environmental factors have become one of the main driving forces for...

Claims

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Application Information

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IPC IPC(8): C09D123/08C09D131/04C09D125/14C09D5/03
Inventor 夏正斌张心亚司徒粤陈焕钦梅慈云
Owner SOUTH CHINA UNIV OF TECH
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