KR20250041767A - Non-flammable paint composition and non-flammable board coated with the same - Google Patents

Abstract

The present invention relates to a fire-resistant paint composition which is improved to be fire-resistant and long-lasting, and to a fire-resistant board which is coated with the fire-resistant paint composition and has reinforced fire-resistant properties, corrosion resistance, and waterproof properties. The fire-resistant paint composition of the present invention comprises: 10 to 20 wt% of 1,3,5-triazine-2,4,6-triamine; 30 to 50 wt% of ammonium polyphosphate; 1 to 10 wt% of dimethylpolysiloxane; 10 to 20 wt% of xylene; 10 to 30 wt% of phosphonic acid, P-methyl-, (5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphorinan-5-yl)methyl methyl ester; and 10 to 30 wt% of a phosphorus polymer formed by modifying polypropylene glycol through a phosphorylation reaction.

Description

Non-flammable paint composition and non-flammable board coated with the same

The present invention relates to a fireproof paint and a fireproof board coated with the fireproof paint, and more specifically, to a fireproof paint composition that is applicable to various fields such as interior and exterior building materials, and a fireproof board coated with the fireproof paint, with improved fireproofness, corrosion resistance, and waterproofing so that it does not burn and can last a long time.

A characteristic of recent large-scale fire accidents is that they result in large-scale disasters that result in numerous casualties due to the combustion of interior panels, which emits large amounts of smoke and toxic gases.

To prevent this, organic polymer materials are made fire-resistant or non-flammable to prevent rapid spread of fire and to extinguish fires early. However, there are problems such as the generation of toxic gases, which make them unsuitable for flammability regulations.

Accordingly, recently, as described in Korean Patent Publication No. 10-2009-0015178, interior panels installed on the inside of floors or walls during the construction of various buildings, such as night light, gypsum board, ceramic panels, and calcium silicate boards, are made of inorganic materials and are fired at high temperature conditions to make them non-combustible or fire-resistant, and then shaped into a rectangular or square shape with a prescribed size and a transfer film is attached thereon.

However, simply using inorganic panels alone has difficulty withstanding extremely high temperatures of over 1300℃, and the problem of generating smoke and toxic gases still remains.

In addition, as in Korean Patent Registration No. 10-2423141, there is a method of applying a non-combustible coating containing a plant extract including a non-combustible and antibacterial liquid inorganic binder and a high-functional powder, but the method has limitations in non-combustibility.

The present invention has been created to solve the above problems, and its purpose is to provide a fireproof paint composition that can be used for interior and exterior materials of buildings by reinforcing fireproofness, etc. so that the fireproof board satisfies combustion regulations, and a fireproof board coated with the fireproof paint and having improved fireproofness.

Another object of the present invention is to provide a fire-retardant board coated with a fire-retardant paint having improved flame retardancy as well as fire-retardancy.

To achieve the above objects, the composition for a fire-retardant paint of the present invention comprises: 10 to 20 wt% of 1,3,5-triazine-2,4,6-triamine; 30 to 50 wt% of ammonium polyphosphate; 1 to 10 wt% of dimethylpolysiloxane; 10 to 20 wt% of xylene; 10 to 30 wt% of phosphonic acid, P-methyl-, (5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphorinan-5-yl)methyl methyl ester; and 10 to 30 wt% of a phosphorus polymer formed by modifying polypropylene glycol through a phosphorylation reaction.

The above phosphorylation reaction is a reaction in which 30 to 60 parts by weight of tricresyl phosphate (TCP) and 2 to 8 parts by weight of xylene are added to 100 parts by weight of the polypropylene glycol and reacted at 80 to 95°C, and the phosphorus polymer can be denatured by concentrating the product under reduced pressure after the phosphorylation reaction. In addition, the non-flammable paint composition can further include polyoxyethylene sorbitan ester.

In another aspect of the present invention, a fireproof board comprises a fireproof board base material; and a fireproof coating layer coated with a fireproof paint composition as applied to the upper surface of the inorganic board.

The above-mentioned non-combustible board base material may be an inorganic board.

In this case, the inorganic board may be at least one board selected from among a silicate board, a calcium board, a magnesium board, and a calcium silicate board. The inorganic board may be a calcium silicate board that does not contain asbestos.

Meanwhile, the flame retardant coating layer may further be coated on the surface of the non-flammable coating layer, and the composition of the flame retardant coating layer may include a vinyl ester resin containing a halogen group element.

The above halogen elements may include Br.

According to an embodiment of the present invention, by coating a composition of a fireproof paint that improves fireproofness on an inorganic board, the fireproofness of the inorganic board is improved.

In addition, by sequentially forming a non-combustible paint, non-combustible coating layer, and a flame retardant coating layer on the surface of the inorganic board, it has become possible to manufacture a non-combustible board with enhanced non-combustibility, corrosion resistance, and waterproof properties.

In particular, in the case of the above flame retardant coating layer, by applying a vinyl ester resin containing a halogen group element, not only flame retardancy but also corrosion resistance can be improved.

Figure 1 is a cross-sectional view of a fireproof board with reinforced fireproofness, corrosion resistance, and waterproofness according to the present invention.
Figure 2 is a cross-sectional view of a fire-retardant board coated with a flame-retardant coating layer in Figure 1.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

Figure 1 is a cross-sectional view of a fire-resistant board with reinforced fire resistance according to the present invention.

Referring to FIG. 1, a fireproof board (100) with reinforced fireproofness according to the present invention includes a fireproof board base material (101) and a fireproof coating layer (103) formed by coating a fireproof agent on the surface of the fireproof board base material (101).

The non-combustible board base material (101) is a material that requires non-combustibility and can be a material used for the interior and exterior of an architectural interior. The interior and exterior materials of an architectural interior require non-combustibility.

The above-mentioned non-combustible board base material (101) may be an inorganic board made of an inorganic material. In this case, the inorganic board may be at least one board selected from among a silicate board, a calcium board, a magnesium board, and a calcium silicate board.

Although the above inorganic boards can withstand certain high temperatures, they need to remain non-flammable in harsher high-temperature environments.

The above-mentioned inorganic board may be an asbestos-free calcium silicate board. Accordingly, the above-mentioned inorganic board may be an environmentally friendly board since it does not contain asbestos and thus does not cause pollution. In addition, the calcium silicate board has excellent incombustibility due to its material. Accordingly, when a noncombustible paint including the noncombustible paint composition of the present invention is coated, it becomes more environmentally friendly and has excellent noncombustibility.

Meanwhile, the non-combustible board base material (101) may include a flame retardant resin. The flame retardant resin is made of any one of Teflon, PVC (polyvinyl chloride), nylon, and PC (polycarbonate) resin.

However, the flame retardant resin is not limited to the resins listed above. For example, since the higher the oxygen index (OI), the more difficult it is to combust, the flame retardant resin is not limited to a specific resin as long as it has a high oxygen index (20 or higher).

The composition of the fireproof paint forming the above fireproof coating layer (103) includes, as an example, 10 to 20 wt% of 1,3,5-triazine-2,4,6-triamine, 30 to 50 wt% of ammonium polyphosphate, 1 to 10 wt% of dimethyl polysiloxane, 10 to 20 wt% of xylene, and 10 to 30 wt% of phosphonic acid, P-methyl-, (5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphorinan-5-yl)methyl methyl ester.

In the composition of the fire-retardant paint of one embodiment, the 1,3,5-triazine-2,4,6-triamine is a halogen-free fire-retardant and is included in the composition to have a fire-retardant function.

And the above ammonium polyphosphate is a phosphorus-nitrogen flame retardant, and acts as a fire retardant by providing surface coating during the combustion process, dissipating heat by evaporation of phosphorus compounds, diluting decomposition products, and reducing melt viscosity.

Therefore, the ammonium polyphosphate has the highest content (30-50 wt%) in the composition.

In addition, since the above dimethyl polysiloxane is an inert substance, it is chemically very stable and maintains its original state without change even when reacting with other compositions, does not catch fire, and is particularly non-toxic.

And the above xylene is included in the composition and has an adhesive function to enable coating.

In addition, the above phosphonic acid, P-methyl-,(5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphorinan-5-yl)methyl methyl ester, is included in the composition and functions to lower smoke density.

Meanwhile, as a composition of the non-flammable coating layer (103), polyoxyethylene sorbitan ester may be further included. The polyoxyethylene sorbitan ester has excellent emulsifying power and dispersibility, and thus can improve the dispersibility of the oil-based non-flammable coating liquid forming the non-flammable coating layer.

The above-mentioned phosphorus polymer is produced by modifying polypropylene glycol through a phosphorylation reaction. The phosphorylation reaction may be a reaction in which 30 to 60 parts by weight of tricresyl phosphate (TCP) and 2 to 8 parts by weight of xylene are added to 100 parts by weight of the polypropylene glycol and the reaction is performed at 80 to 95°C for a predetermined period of time, for example, 8 hours. After the phosphorylation reaction, the product may be concentrated and washed under reduced pressure to produce the phosphorus polymer.

Through the above-mentioned phosphorus polymer, the dispersing and bonding power between the non-combustible component and the resin can be improved. When the above-mentioned phosphorus polymer is contained, the viscosity of the resin composition is lowered, thereby improving workability. This is because the non-combustible component of the phosphorus polymer improves the dispersing power with the non-combustible board base material.

It is preferable that the phosphorus polymer has a weight portion of 1 to 5 wt% in the composition of the non-flammable coating layer (103). When the phosphorus polymer is used in an amount of 1 wt% or less, the viscosity of the paint is high, making it difficult to disperse with other components. When the phosphorus polymer exceeds 5 wt%, precipitation of other non-flammable agents occurs quickly, resulting in a decrease in the non-flammability effect or a decrease in adhesion.

In this case, the bond strength between the non-combustible coating layer and the non-combustible board base material must be excellent. This is because the non-combustible paint base material can be used not only for general interior and exterior materials, but also as a transport channel for highly corrosive wastewater and sewage, and can be used in various areas such as corrosive tanks and electric poles.

The non-combustible paint composition, if it contains a phosphorus polymer modified with polypropylene glycol, results in higher bond strength.

In addition, in the case of the above polypropylene glycol, water resistance is improved. For example, when furniture interior gets wet due to flooding, or when a fireproof board is used as a passageway for sewage, in the case of polypropylene glycol, even if there is moisture on the outside, there is an effect where surface cracks do not occur and phase separation is not found.

Polypropylene glycol is a synthetic material used in liquids, and can be made by mixing lead as a solidifying agent and adding a large amount of surfactant to make it solubilized.

As described above, the composition contained in the non-combustible coating layer (103) according to one embodiment is a material that contributes to both non-combustibility and coating functions, and if coated on a non-combustible board base material (101) including a flame retardant resin, the non-combustible performance that does not burn well and withstands fire is improved, and a non-combustible board having excellent adhesion to the non-combustible board base material can be manufactured.

And the composition of the above-mentioned fire-retardant coating layer (103) includes, in another embodiment, 35 to 45 wt% of water, 2 to 5 wt% of titanium oxide, 0.1 to 1.0 wt% of melamine, 30 to 35 wt% of pentaerythritol or pentaerythritol tetranitrate (PETN), 25 to 30 wt% of ethylene/vinyl acetate (VA) copolymer, and 1 to 5 wt% of a phosphorus polymer formed by modifying polypropylene glycol through phosphorylation.

Among the compositions of the non-combustible coating layer (103) according to other embodiments, the titanium oxide exists in powder form and has a very high boiling point (approximately 2,900°C) and flash point (approximately 2,500 to 3,000°C), so it is composed in a small amount (2 to 5 wt%).

In addition, the above melamine is composed in a very small amount (0.1 to 1.0 wt%) to provide an adhesive function.

And the above pentaerythritol has a fire-resistant and flame-retardant function in the composition. Accordingly, the above pentaerythritol has the second largest content (30-35 wt%) in the composition after water.

Additionally, the ethylene/VA copolymer functions as an adhesive, binder, and film former in the composition.

The above-mentioned phosphorus polymer is produced by modifying polypropylene glycol through a phosphorylation reaction. The phosphorylation reaction may be a reaction in which 30 to 60 parts by weight of tricresyl phosphate (TCP) and 2 to 8 parts by weight of xylene are added to 100 parts by weight of the polypropylene glycol and the reaction is performed at 80 to 95°C for a predetermined period of time, for example, 8 hours. After the phosphorylation reaction, the product may be concentrated and washed under reduced pressure to produce the phosphorus polymer.

Since the composition ratio and function of the above-mentioned incorporation polymer are the same as those described in the composition of the fire-retardant coating layer (103) of the above-mentioned example, a detailed description is omitted.

A composition like this is prepared by mixing water (35 to 45 wt%) to form a fire-retardant coating layer (103).

After the flame retardant coating layer (103) thus coated is coated on the flame retardant board base material (101), the flame retardant board (100) with reinforced flame retardancy according to the present invention is completed through natural drying or oven drying.

Meanwhile, the coating thickness of the above-mentioned fire-retardant coating layer (103) is not limited to a specific dimension as long as it is a thickness that can withstand fire (or fire).

And the coating thickness may vary depending on the thickness or area of the non-combustible board base material (101), and may also vary depending on the purpose of use, for example, lining or wall reinforcement, and economic feasibility is also a consideration.

The operation of the fire-resistant board with reinforced fire resistance according to the present invention having the above-described configuration is explained as follows.

Referring again to Figure 1, the fire-resistant board (100) with reinforced fire resistance according to the present invention has a fire-resistant coating layer (103) formed on the surface of the fire-resistant board base material (101).

Therefore, the fireproof board (100) with reinforced fireproofness according to the present invention imparts fireproof properties to the fireproof board base material (101) that is corrosion-resistant, waterproof, lightweight, and sturdy, thereby reinforcing the fireproofness so that it does not catch fire even at high temperatures, and can be used for various purposes.

Meanwhile, as shown in Fig. 2, a flame retardant coating layer (105) can be formed on the upper surface of the non-flammable coating layer (103).

The composition of the above flame retardant coating layer (105) includes a vinyl ester resin containing a large amount of halogen elements. This vinyl ester resin containing a large amount of halogen elements has high flame retardancy properties and, in particular, excellent corrosion resistance.

In addition, the vinyl ester resin of the composition of the flame retardant coating layer (105) has high heat resistance, is lightweight and has high specific strength, and has a high oxygen index (OI) of 32 to 38.

And the halogen element of the flame retardant coating layer (105) includes Br (bromine or bromine). The Br has a flame retardant function, etc., in the composition of the flame retardant coating layer (105).

After the non-combustible coating layer (103) and the flame retardant coating layer (105) are formed by coating the non-combustible board base material (101), the non-combustible board (100) with reinforced non-combustibility, corrosion resistance, and waterproofing according to the present invention is completed through natural drying or oven drying.

Meanwhile, the coating thickness of the non-combustible coating layer (103) and the flame retardant coating layer (105) is not limited to a specific dimension as long as it can withstand fire (or fire) and exhibit non-combustibility, corrosion resistance, and waterproof properties.

And the coating thickness may vary depending on the thickness or area of the non-combustible board base material (101), and may also vary depending on the purpose of use, for example, lining or wall reinforcement, and economic feasibility is also a consideration.

That is, if only the above-mentioned non-combustible coating layer (103) is formed, moisture may be absorbed, making it insufficient for use as an exterior material.

To solve these problems, a flame retardant coating layer (105) made of a flame retardant resin composition with excellent moisture resistance is formed on the surface of the flame retardant coating layer (103), thereby manufacturing a flame retardant board that is strong against fire and has strong moisture resistance.

As described above, the present invention has been described with reference to one embodiment shown in the drawings, but this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent embodiments are possible therefrom.

Therefore, the true scope of protection of the present invention should be defined solely by the appended claims.

100. Fireproof board with reinforced fireproof, corrosion resistance and waterproof properties
101. Non-combustible board material
103. Fireproof coating layer
105. Flame retardant coating layer

Claims (9)

1,3,5-Triazine-2,4,6-triamine 10-20 wt%;
Ammonium polyphosphate 30-50 wt%;
Dimethylpolysiloxane 1-10 wt%;
Xylene 10-20 wt%;
Phosphonic acid, P-methyl-, (5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphorinan-5-yl)methyl methyl ester 10-30 wt%; and
A composition for a non-combustible paint containing 10 to 30 wt% of a phosphorus polymer formed by modifying polypropylene glycol through a phosphorylation reaction. In the first paragraph,
A composition for a non-flammable paint, characterized in that the phosphorylation reaction is a reaction in which 30 to 60 parts by weight of tricresyl phosphate (TCP) and 2 to 8 parts by weight of xylene are added to 100 parts by weight of the polypropylene glycol and reacted at 80 to 95°C, and the phosphorus polymer is denatured by concentrating the product under reduced pressure after the phosphorylation reaction. In the first paragraph,
A composition for a fire-retardant paint, characterized in that it further comprises polyoxyethylene sorbitan ester. Non-combustible board material; and
A fire-retardant coating layer coated with a fire-retardant coating composition according to any one of claims 1 to 3, which is applied to the upper surface of the inorganic board;
A non-combustible board containing: In paragraph 4,
A fire-resistant board characterized in that the above fire-resistant board base material is an inorganic board. In paragraph 5,
A fire-resistant board characterized in that the above-mentioned inorganic board is at least one board selected from among a silicate board, a calcium board, a magnesium board, and a calcium silicate board. In Article 6,
The above inorganic board is a non-combustible board characterized in that it is a calcium silicate board that does not contain asbestos. In paragraph 4,
Further comprising a flame retardant coating layer coated on the surface of the above non-flammable coating layer,
A fire-retardant board, characterized in that the composition of the flame retardant coating layer includes a vinyl ester resin containing a halogen group element. In paragraph 4,
A non-combustible board characterized in that the above halogen group element includes Br.