KR20160061043A - Nonflammable insulation coating paint - Google Patents

Abstract

The present invention relates to a method for producing a ceramic powder, comprising: 1) 45 to 60% by weight of a ceramic binder; 2) 5 to 15% by weight of titania powder; 3) 5 to 10% by weight of talc powder; The present invention relates to a flame-retardant thermal insulation coating which comprises 16 to 25% by weight of a fireproof thermal insulation material containing airgel and 2 to 5% by weight of bentonite, and 6) And excellent heat resistance and fire resistance. Accordingly, the present invention can safely protect the object to be coated from a flame when a fire occurs, significantly slow down the flame transfer rate, and can safely protect the coated surface. Since the ingredient is an inorganic raw material, It is possible to secure evacuation time to evacuate when a fire occurs in the structure, and it is possible to prevent large-scale casualty damage, and does not adversely affect the environment and does not cause cracking for a long time after coating, Oxygen or foreign substances do not directly come into contact with the object to be coated and the corrosion resistance is improved and the outer wall of the furnace which is required to have a thermal expansion coefficient , A reaction tower, a storage tank for oil, an outer wall of a steam pipe (conduit) or a water pipe, and the outside of a refrigerator.

Description

{Nonflammable insulation coating paint}

The present invention relates to a flame-retardant heat-insulating coating material, which is free from cracks on a coated surface, has fire resistance and flame retardancy, is excellent in heat insulation, does not generate noxious gas and is harmless to human body.

The heat transfer is carried out by conduction, convection, and radiation. Korea has four distinct seasons and a large temperature change due to climate. Due to insufficient heat in winter, due to the difference in temperature between inside and outside, In summer, there are many buildings that should be protected from outside climate and heat, such as excessive cooling cost due to rising atmospheric temperature.

 In addition, fire retardant coating technology developed to give maximum effect of insulation and dew condensation to buildings by adding insulation material called airgel powder with special properties to radiate and emit heat has been known but it is difficult to fuse with paint Is difficult to implement, and when added in a large amount.

In general, industrial plant materials used in industrial plants are exposed to high heat sources. In particular, industrial facilities used in steel, steel, and petrochemical industries are rapidly aging due to high temperature heat in the process structure, while they cause heat loss by transferring heat to the outside, and workers working there It is inevitably exposed to the working environment in the bad condition. Therefore, there is a constant demand for development of paints capable of solving these problems.

In addition, paints used in indoor construction generally increase the transition speed of fire when a fire occurs, generate toxic gas to cause a lot of personal injury, and are very vulnerable to fire. In indoor construction, there are many problems in preventing the toxic gas generated by the paint in the fire and delaying the fire transition.

In addition, when conventional coating materials are coated on industrial equipment materials, there is a limit in effectively controlling the heat sources generated in the entire industrial facilities and improving the environment of production work sites.

The heat insulation coating composition technology of adiabatic heat-resistant function was developed as a domestic patent registration No. 101296880. It was developed with an essential constitution of silicone acrylic resin, titania, talc, aerogel, vacuum ceramic powder and soap silicate, It is difficult to provide flame retardant performance.

In addition, Korean Patent Laid-Open Publication No. 10-2013-0048741 has been developed as an excellent heat insulating technology. However, it is composed of water glass, titania, talc, calcium carbonate, alumina, aluminum hydroxide, magnesium borate, aerogels and the like. There is no mention of incombustibility, and there is a problem that it is difficult to find an optimal component among various constituents and to achieve a desired purpose.

The present invention has been made to solve the above problems, and it is an object of the present invention to provide a coating composition which is excellent in fire resistance and flame retardancy (burning resistance) due to no cracking even when high heat is applied to the coated surface, It is an object to be solved to provide a fire-retardant insulating paint which is not harmful to human body.

In order to solve the above-mentioned problems, the present invention provides a method for producing a ceramic powder, comprising: 1) 45 to 60% by weight of a ceramic binder; 2) 5 to 15% by weight of titania powder; 5 to 10% by weight of bentonite, 2 to 5% by weight of bentonite, 6) 16 to 25% by weight of a fireproof thermal insulation material containing airgel and the remaining weight% of water.

The present invention also provides a method for producing a ceramic powder, comprising: 1) 45 to 60 wt% of ceramic binder; 2) 5 to 15 wt% of titania powder; 3) 5 to 10 wt% of talc powder; , 5) 2-5% by weight bentonite, 6) 16-25% by weight of fireproof insulation comprising aerogels and the rest of water by weight;

The fire-retardant insulating material is provided so as to have a composition ratio of 3-5 wt% of airgel, 10-15 wt% of alumina, and 3-5 wt% of aluminum hydroxide.

According to the present invention as described above, cracking does not occur for a long period of time after coating, and heat resistance and fire resistance are excellent. In addition, since the color does not change even when high heat is applied, the present invention can safely protect the coating object from the flame when a fire occurs, significantly slow down the flame transfer rate, and safely protect the coated object.

In addition, since the present invention includes an aerogel and a bentonite, it secures a space at the time of expansion, exhibits excellent heat insulation performance, effectively delays transition of a flame to a coating object, and is an inorganic raw material, . Therefore, when a fire occurs in an architectural structure, it is possible to secure evacuation time to evacuate, thereby preventing large-scale casualties and adversely affecting the environment.

In addition, since the present invention does not cause cracking for a long time after coating, oxygen or foreign substances do not directly come into contact with the coating object, and corrosion resistance is improved. Therefore, it can be effectively used for interior finishing materials.

The present invention is described as follows.

The crude phase of Example 1 which constitutes the fireproof thermal insulation paint of the present invention is prepared by mixing 1) 45-60% by weight of a ceramic binder, 2) 5-15% by weight of titania powder, 3) 5-10% by weight of talc powder, 5 to 10% by weight of calcium carbonate powder, 5) to 5% by weight of bentonite, 6) 16 to 25% by weight of fireproof insulation material including aerogels and the remaining weight% of water.

The ceramic binder is a modified silicate compound which is modified by various reactions to modify potassium silicate, which is strong in fire, has high adhesive power, and is soluble in water and which is another name of alkali metal bonded to silica (SiO2) through various reactions Waterglass, for example).

The ceramic binder contains an alkali metal having a high hydrophilic property, and is excellent in the pointing force and the dispersing ability and can be used for cement, adhesive, and coating. If the addition amount is less than 45% by weight, the binding force and the uniform application property are deteriorated. If the addition amount exceeds 60% by weight, the curing time after coating is delayed and the cost increases.

The titania is called titanium dioxide (TiO ₂ ) and has excellent hiding power and is generally used for water-based paints. In addition, when the content is more than 15% by weight, the cost is high and cracks are generated after drying. If it is less than 5% by weight, the opacity is lowered and the heat resistance is lowered.

The talc and calcium carbonate are generally used for coating, adhesive heat resistance and the like. If it is more than 10% by weight, the adhesive strength is lowered and a crack is generated. If it is less than 5% by weight, the heat resistance is lowered.

The bentonite is strong against heat and excellent in thermal stability. When you suck in water, it expands more than 10 times its own volume and exerts a strong viscosity when mixed with water. Because it is inorganic, it is harmless to human body. It is used to increase the viscosity, but when the amount is increased, the paint hardens and the adhesive strength drops.

The aerogels, also called fibrids, are complex carbohydrates or polysaccharides composed of more than 3000 glucose units. Therefore, the airgel and the bentonite are combined with the ceramic binder to maintain the porosity, thereby providing the fire-proofing and heat insulation, preventing cracking of the surface, and preventing the flame transition at the time of fire without burning at 800 to 1000 ° C. As shown in Fig.

The flame-retardant heat-insulating coating of the present invention, which is made by mixing the above-mentioned constituent materials, does not crack for a long time after coating and is excellent in heat resistance and fire resistance.

Accordingly, the present invention can safely protect the coating object from the flame when a fire occurs, significantly slow the flame transfer rate, and can safely protect the object to be coated.

In addition, the present invention effectively inhibits transition of a flame to a coating object by containing airgel powder, and is an inorganic raw material, so that toxic gas is not generated in a fire. However, when the amount is more than the above weight, there is a large amount of pores, so that the paint which absorbs the binder hardens, cracks occur, and the price becomes high.

Therefore, when a fire occurs in an architectural structure, it is possible to secure evacuation time to evacuate, thereby preventing large-scale casualties and adversely affecting the environment.

In addition, since the present invention does not cause cracking for a long time after coating, oxygen or foreign substances do not directly come into contact with the coating object, and corrosion resistance is improved. Therefore, it can be effectively used for interior finishing materials.

Industrial Applicability As described above, the present invention has an additional effect of securing a superior working environment and safety of a worker when applied to an industrial structure, and securing a superior living environment and safety of a user when used in an indoor building structure .

Hereinafter, the present invention will be described in detail with reference to the following examples.

(Preferably 8 wt%) of talc powder, 5 to 10 wt% (preferably 8 wt%) of talc powder, 55 to 60 wt% (preferably 50 wt% By weight, preferably 5 to 10% by weight (preferably 7% by weight) of calcium carbonate powder, 2 to 5% by weight (preferably 2%) by weight of bentonite, 16 to 25% And the remaining weight% of water is mixed with stirring.

Skin complexes were coated on the surface of a structure having a width of 1 meter and a thickness of 1 centimeter and dried to provide a flame. As a result, the flame was not transferred to the structure even at 800 to 1000 ° C, , And the insulation on the backside of the flame was maintained at 35 to 40 ° C.

(Preferably 8 wt%) of talc powder, 5 to 10 wt% (preferably 8 wt%) of talc powder, 55 to 60 wt% (preferably 50 wt% (Preferably 2% by weight), 3 to 5% by weight (preferably 3% by weight) of airgel, and 5 to 10% by weight 10-15% by weight (preferably 10% by weight) of alumina and 3-5% by weight (preferably 5% by weight) of the remaining amount of water by stirring aluminum hydroxide.

The skin complexes were coated on the surface of the structure having a thickness of 1 meter and a thickness of 1 centimeter by coating the mixture in the desired amount as in Example 2. The flame was applied to the skin complex to show that the flame was not transferred to the structure even at 1300 to 1800 ° C, , And the insulation of the backside of the flame was maintained at 35 ~ 40 ℃. In comparison with Example 1, alumina and aluminum hydroxide are added in addition to aerosol, and since bentonite and ceramic binder are added and reacted with each other, they are cured upon application, resulting in increased bonding strength and increased incombustibility, and the incombustibility can be maintained even at 1300 to 1800 ° C. Here, there is a difference in the incombustible temperature because there is a difference in the thickness between once and twice, and the coating thickness varies depending on the type of brush to be used.

Claims (3)

4) 5 to 10% by weight of calcium carbonate powder; 5) 5 to 10% by weight of bentonite 2- (3) talcum powder 5 to 10% 5% by weight, 6) 16 to 25% by weight of fire-proof thermal insulation material including airgel, and the remaining weight% of water. The method according to claim 1,
Wherein the fire-retardant insulating material is composed of 3-5 wt% of airgel, 10-15 wt% of alumina, and 3-5 wt% of aluminum hydroxide. The method according to claim 1,
Characterized in that the fire-retardant insulating material is added with 16-25 wt% of the airgel alone.