Composite coating and method for painting wall surface of building by applying composite coating

Abstract

The invention discloses composite coating which is safe and environmentally friendly and has a low water absorption rate, a strong anti-sticking and anti-pollution capability and long service life, and method for painting a wall surface of a building by applying the composite coating. The composite coating is prepared from a component A and a component B, which are independently sub-packaged and are mixed to use, wherein the component A is a coating main agent and the component B is a film-forming accelerant; and the component A is prepared from the following components in percentage by weight: 48 percent to 60 percent of nano silicon oxide, 10 percent to 16 percent of modified silicone resin, 0.2 percent to 0.5 percent of an organic silicon flatting agent and 23.5 percent to 41.8 percentof an alcohol type solvent.

Description

Technical field [0001] The invention relates to a combined paint and a coating method applied to the walls of homes, office places, industrial plants or special fireproof building occasions. Background technique [0002] At present, in the field of building materials, building walls in homes, industrial plants, office and business places usually use latex interior wall paint, diatom mud interior wall paint, spray colorful paint and other paints, or use marble walls and bare walls. Do not do any protective treatment and other methods to deal with, but each of these methods has many drawbacks, such as the following processing methods: [0003] 1. The building wall adopts a bare wall without any protection. The disadvantages are: ①It is not environmentally friendly, the water is stained, the emitted gas is difficult to deal with, and the hidden chemicals can damage the human body after 30 years It was discovered that it is harmful to the human body and has a long potential time; ②Poo...

AI Technical Summary

Problems solved by technology

[0003] 1. The building walls use bare walls without any protection. The disadvantages are: ① not environmentally friendly, the water is stained heavily, the emitted gas is difficult to deal with, and the hidden chemicals can harm the human body after 30 years It was discovered that it is harmful to the human body and has a long potential time; ② Poor stain resistance, rough surface, and high adsorption; ③ High water absorption rate, the wall is very easy to absorb moisture in the air, which has a great impact on the life of the wall; ④ Use The service life is not long, it is easy to be eroded by the environment, and it will cause great damage to the overall wall

[0004] 2. The disadvantages of using latex interior wall paint are: ①The natural environmental protection is poor, and it will produce volatile organic compounds (VOC) and other harmful substances to the human body; ②It belongs to organic materials, which is easy to generate static electricity, has adsorption, and poor stain resistance; ③Water absorption High rate, the wall is very easy to absorb moisture in the air, which has a great impact on the life of the wall; ④The service life is about 3-5 years, because it is an organic material, it is easy to fade, and it will turn yellow and affect the appearance

[0005] 3. The disadvantages of using diatom mud interior wall paint are: ①Natural but not environmentally friendly: it is composed of pure natural materials such as diatom ore, and does not contain any harmful substances to the human body; When the temperature is high or saturated, it will also release gas, which is harmful to the human body; ②Although it is an inorganic material, it is not easy to generate static electricity, but it has strong adsorption, poor stain resistance, and easy to hide dust on the surface; , dust or adsorption penetration, not easy to clean; ③High water absorption, the wall is very easy to absorb moisture in the air, which has a great impact on the life of the wall; ④Although it is an inorganic material, it is also easy to fade, which affects the service life

[0006] 5. The disadvantages of spraying ordinary varnish coatings are: ① poor natural environmental protection, no fire resistance, strong pulverization, easy embrittlement, cracking, volatile organic compounds (VOC) and other harmful substances to the human body at high temperatures; ② It is easy to generate static electricity, has adsorption, poor stain resistance, and is not resistant to acid and alkali; ③High water absorption, the wall is very easy to absorb moisture in the air, which has a great impact on the life of the wall; ④Low hardness: the hardness is between 1-2H between, easy to scratch and bruise

[0007] 7. The disadvantages of spraying colorful paint and other coatings are: ① not environmentally friendly, volatile organic compounds (VOC) and other harmful substances to the human body at high temperatures; ② organic materials, which have adsorption properties, poor stain resistance, and are not resistant to acid and alkali; ③Poor acid and alkali resistance, the wall surface is easy to be brittle at high and low temperature, and the pulverized wall surface is very easy to absorb moisture in the air, which has a great impact on the life of the wall; ④Low hardness, the hardness is between 1-2H, easy to give Scratches and bruises; ④ Short service life. Although it is an inorganic material, it is easy to fade and turn white when exposed to water. The service life is generally 3-5 years