KR20090073412A - Water-based transparent fire-proofing paint, method of manufacturing a water-based fire-proofing paint and method of forming a fire-proofing layer - Google Patents

Abstract

An aqueous transparent fireproof paint is provided to ensure excellent flame retardancy, to prevent the generation of poisonous gas in fire, and to secure safe work environment or the prevention of environmental pollution. A method for manufacturing an aqueous transparent fireproof paint comprises the steps of: mixing an non-ionic acrylic emulsion resin 30-70 parts by weight, anti-foaming agent 0.1-0.5 parts by weight, fusing agent .5-5 parts by weight, slip agent 1-3 parts by weight, wetting agent 0.1-0.5 parts by weight, antiseptic 0.1-0.5 parts by weight and thickener 0.5-1.5 parts by weight to obtain a first mixture; mixing a flame retardant 5-15 parts by weight and a dispersing agent 0.1-0.5 parts by weight to form a second mixture; and mixing the first mixture and the second mixture to form an aqueous transparent flame-retardant paint.

Description

WATER-BASED TRANSPARENT FIRE-PROOFING PAINT, METHOD OF MANUFACTURING A WATER-BASED FIRE-PROOFING PAINT AND METHOD OF FORMING A FIRE-PROOFING LAYER}

The present invention relates to an aqueous transparent flame retardant paint, a method for producing the same, and a method for forming a flame retardant coating film, and more particularly, to a method for producing an aqueous transparent flame retardant paint containing no halogen and a method for forming a flame retardant coating film using the same. will be.

Flame-retardant paints are strictly used for the protection of life due to the prevention of the spread of fire from the function of narrowly protecting the building from fire to prevent property loss. That is, through the flame retardant paint, the wood or wood such as plywood or plywood, which is used as interior materials in case of a fire due to a cigarette or an electric or petroleum heating device, is ignited from high-temperature heat and sparks, thereby preventing or delaying propagation of the flame to prevent material loss. It can also provide time to minimize and save lives.

In particular, as property, public facilities, business facilities, and entertainment facilities increase due to the improvement of quality of life, it is necessary to flameproof the combustible interior materials of facilities to protect property and life. Flame retardant treatment is applied to the surface of the flammable interior material of the facility with a flame retardant paint, etc., to prevent or delay the propagation of the flame due to the ignition of the flammable interior material from the heat and flame of high temperature when a fire occurs.

On the other hand, as a non-flammable material that does not burn well when a fire occurs, a gypsum board containing asbestos or glass fibers or a compressed board pressed at high pressure is used. However, the nonflammable material is a product manufactured to a certain standard, and is difficult to apply to an object having a curved surface, and has a disadvantage of being very weak to impact. In addition, the material itself is not a luxury, there is a problem that is not suitable as a finishing material of high-quality interior decoration. Therefore, the research on the flame retardant paint for flame retardant treatment of indoor combustible lining agent has been important.

As the flame retardant paint for the flame retardant treatment of the indoor combustible interior materials, the chlorinated rubber-based oil-based flame retardant paint as disclosed in the Korean Patent No. 644,770 has been used. However, these oil-based flame retardant paints are not only dangerous to fire if they are installed under closed or poorly ventilated working conditions, but also impair the health of workers due to volatilized organic solvents and generate toxic halogen gas in the event of a fire. It has a fatal flaw.

Accordingly, there is an increasing demand for environmentally friendly flame retardant paints than oil-based flame retardant paints, which cause work environment problems and serious air pollution problems using a large amount of solvents and halogen-based compounds.

It is a first object of the present invention to provide an aqueous transparent flame retardant paint which is safe in terms of working environment or environmental pollution while having a good or superior flame retardant performance compared to an existing oil-based flame retardant paint composition without using a halogen component.

It is a second object of the present invention to provide a method for producing the aqueous transparent flame retardant paint.

Moreover, the 3rd objective of this invention is providing the method of forming a flameproofing coating film using the above-mentioned aqueous transparent flameproofing paint.

According to an embodiment for achieving the first object of the present invention described above provides an aqueous transparent flame retardant paint. The aqueous transparent flame retardant paint is 30 to 70 parts by weight of nonionic acrylic emulsion resin, 5 to 15 parts by weight of a flame retardant, antifoaming agent, 3 to 12 parts by weight of an additive including a fusion agent, slip agent, preservative, thickener, humectant and dispersant, and 10 to 30 parts by weight of water.

According to an embodiment for achieving the second object of the present invention described above provides a method for producing an aqueous transparent flame retardant paint. In order to prepare the above-mentioned aqueous transparent flame retardant paint, first, 30 to 70 parts by weight of a nonionic acrylic emulsion resin, 0.1 to 0.5 parts by weight of an antifoaming agent, 0.5 to 5 parts by weight of a fusing agent, 1 to 3 parts by weight of a slip agent, and 0.1 to 1 wetting agent 0.5 parts by weight, 0.1 to 0.5 parts by weight of preservative and 0.5 to 1.5 parts by weight of thickener are mixed to form a first mixture. Then, 10 to 30 parts by weight of water is mixed with 0.1 to 0.5 parts by weight of dispersant and 5 to 15 parts by weight of flame retardant to form a second mixture. And a 2nd mixture is mixed with the formed 1st mixture. As a result, an aqueous transparent flame retardant paint can be formed.

In addition, according to an embodiment for achieving the third object of the present invention described above provides a method for producing a transparent flame-proof coating film. In order to manufacture the above-mentioned transparent flame-retardant coating film, first, 30 to 70 parts by weight of nonionic acrylic emulsion resin, 0.1 to 0.5 parts by weight of antifoaming agent, 0.5 to 5 parts by weight of fusing agent, 1 to 3 parts by weight of slip agent, and 0.1 to 0.5 wetting agent By weight, 0.1 to 0.5 parts by weight of preservative and 0.5 to 1.5 parts by weight of thickener are mixed to form a first mixture. Then, 10 to 30 parts by weight of water is mixed with 0.1 to 0.5 parts by weight of dispersant and 5 to 15 parts by weight of flame retardant to form a second mixture. Then, the second mixture is mixed with the formed first mixture to form an aqueous transparent flame retardant paint. Thereafter, the aqueous transparent flame retardant paint is applied on the flammable object, and then a drying process is performed. As a result, a transparent flameproof coating film is formed on the combustible object. At this time, the flameproof coating is preferably formed to have a thickness of about 70㎛ 120㎛.

As mentioned, according to the present invention, the aqueous transparent flame retardant paint containing no halogen compound is transparent flame retardant having the same or superior flame retardant performance as the case of using an oil retardant paint even when the thickness of the dry coating film is about 70 to 120 µm. A treatment coating film can be formed. That is, the flame-proof coating film formed of the above-described paint is foamed by heat or flame at the time of fire to form a heat insulating layer, so that it is possible to delay the rapid propagation of fire by blocking heat and flame. In addition, the aqueous transparent flame retardant paint does not contain a halogen compound, it can provide a time to save the life without generating a toxic gas.

Hereinafter, an aqueous transparent flame retardant paint, a method of manufacturing the same, and a method of forming a flame retardant coating film according to various aspects of the present invention will be described in detail. However, the present invention is not limited to the following embodiments and may be implemented in other forms. The embodiments introduced herein are provided to make the disclosure more complete and to fully convey the spirit and features of the invention to those skilled in the art.

Water-based transparent flame retardant paint

The aqueous transparent flame retardant paint according to the present invention includes 30 to 70 parts by weight of a nonionic acrylic emulsion resin, 5 to 15 parts by weight of a flame retardant, 3 to 12 parts by weight of additives, and 10 to 30 parts by weight of water.

The nonionic acrylic emulsion resin is not only excellent in durability, but also has excellent physical compatibility with a flame retardant, and has a glass transition temperature of 0 to 50 ° C. This is because when the glass transition temperature of the nonionic acrylic emulsion resin is 0 ° C. or less, the coating film hardness is weak and the scratchability is weak. When the glass transition temperature exceeds 50 ° C., the coating film is cracked due to excessive hardness increase. Therefore, it is preferable to use the nonionic aric emulsion resin resin whose glass transition temperature is 0-50 degreeC.

In addition, when the amount of the nonionic acrylic emulsion resin is less than 30 parts by weight based on 100 parts by weight of the water-based flame retardant paint, the coating film hardness and transparency are inferior, and when it exceeds 70 parts by weight, the foaming effect is significantly lowered, which is not preferable. . Therefore, the amount of the nonionic acrylic emulsion resin is preferably 30 to 70 parts by weight, more preferably 50 to 65 parts by weight based on the total weight of the aqueous transparent flame retardant paint.

The flame retardant is a flame retardant which gives flame retardant performance to the paint at a high temperature. When the amount of the flame retardant is 5 parts by weight or less based on 100 parts by weight of the aqueous flame retardant paint, the flame retardant performance is lowered. This is significantly lowered. Therefore, the amount of the flame retardant is preferably 5 to 15 parts by weight, more preferably 7 to 10 parts by weight, based on the total weight of the aqueous transparent flame retardant paint.

Examples of the flame retardant include aluminum trihydroxide, ammonium polyphosphate, inorganic acid, amine phosphate, amide phosphate, amine sulfate, melamine phosphate ), Dimelamine phosphate, melamine pyrophosphate, melamine polyphosphate, phosphate ester and tricresyl phosphate. These can be used individually or in mixture of 2 or more.

As the additive, 3 to 12 parts by weight of a dispersant, antifoaming agent, preservative, fusing agent, slip agent, wetting agent, thickener, and the like may be used. As an example, 0.1 to 0.5 parts by weight of antifoaming agent, 0.5 to 5 parts by weight of fusing agent, 1-3 parts by weight of slip agent, 0.1 to 0.5 parts by weight of wetting agent, 0.1 to 0.5 parts by weight of preservative, 0.5 to 1.5 parts by weight of thickener Parts and 0.1 to 0.5 parts by weight of dispersant may be used.

Specific examples of the additives include BYK Disperbyk 190 (product name) as a dispersant, Foamex 810 (product name) from Degussa as a defoaming agent, Neotex PS-35 (product name) from DaeKyo Co., Ltd. as a slipper, BYK BYK as a wetting agent -346 (product name), SK Chemical's Sky Bio B-95 (product name) as an antiseptic agent, and SCT-275 (product name) of ROAM & HAAS company as a thickener. The additives are used to impart an optimal coating state and coating performance according to the type thereof, and the additives are mixed in an appropriate ratio because their types and amounts are different, and the amount of each additive is not a limiting factor of the present invention.

The water is used 10 to 30 parts by weight so that the viscosity of the aqueous transparent flame retardant paint and the flame retardant can be easily mixed into the first mixture. The water is a solvent and its amount of use is not a limiting factor of the present invention.

Manufacturing method of aqueous transparent flame retardant paint

The aqueous transparent flame retardant paint of the present invention can be prepared by mixing or stirring a first mixture comprising a nonionic acrylic emulsion resin and a second mixture comprising a flame retardant.

In order to prepare the aqueous transparent flame retardant paint, first, an additive is mixed with a nonionic acrylic emulsion resin to form a first mixture.

Specifically, 0.1 to 0.5 parts by weight of antifoaming agent, 0.5 to 5 parts by weight of fusing agent, 1 to 3 parts by weight of slip agent, and a wetting agent to 30 to 70 parts by weight of the nonionic acrylic emulsion resin to form the first mixture. 0.1 to 0.5 parts by weight, 0.1 to 0.5 parts by weight of preservatives and 0.5 to 1.5 parts by weight of thickener may be prepared by stirring until a uniform solution state.

The nonionic acrylic emulsion resin applied to form the first mixture is a nonionic surfactant of 7 to 15 parts by weight of the total of the acrylic resin, the anionic surfactant 1 to 5 parts by weight of the total monomer of the acrylic resin It is preferred to prepare by emulsification. Detailed descriptions of the nonionic surfactants and additives are omitted because they are mentioned above in detail.

Subsequently, a flame retardant and a dispersant are added to water to form a second mixture. As an example, the second mixture may be formed by mixing 5 to 15 parts by weight of a flame retardant and 0.1 to 0.5 parts by weight of a dispersant to 10 to 30 parts by weight of water. The description of the flame retardant and dispersant used to form the second mixture has been omitted since it has been described in detail above.

Then, the second mixture is mixed or stirred with the first mixture formed by the method as described above. As a result, the aqueous transparent flame retardant paint of the present invention can be formed. The aqueous transparent flame retardant paint formed by the above-described method has a wide range of applications due to its transparent properties while providing excellent flame retardancy to flammable objects.

Method of Forming Flame-Proof Coating Film Using Aqueous Transparent Flame-Proof Paint

EMBODIMENT OF THE INVENTION Hereinafter, the formation method of the flameproofing coating film using the aqueous transparent flameproof coating of this invention is demonstrated in detail.

First, 30 to 70 parts by weight of a nonionic acrylic emulsion resin, 5 to 15 parts by weight of a flame retardant, 3 to 12 parts by weight of an additive including an antifoaming agent, a fusion agent, a slipping agent, a preservative, a thickener, a humectant and a dispersant and water 10 to 30 The aqueous transparent flame-proof paint containing a weight part is prepared.

 Specifically describing the method for producing the aqueous transparent flame retardant paint, first, 30 to 70 parts by weight of a nonionic acrylic emulsion resin, 0.1 to 0.5 parts by weight of an antifoaming agent, 0.5 to 5 parts by weight of a fusing agent, and 1 to 3 parts by weight of a slip agent. , 0.1 to 0.5 parts by weight of wetting agent, 0.1 to 0.5 parts by weight of preservative and 0.5 to 1.5 parts by weight of thickener are added and stirred until a uniform solution is formed to form a first mixture. Subsequently, 0.1 to 0.5 parts by weight of dispersant and 5 to 15 parts by weight of flame retardant are added to 10 to 30 parts by weight of water to form a second mixture. Thereafter, the second mixture is mixed with low speed stirring to the first mixture formed as described above. As a result, an aqueous transparent flame retardant paint containing no halogen having a viscosity adjusted is produced. In this case, the description of the elements constituting the water-based transparent flame retardant paint is the same as described above, and will be omitted to avoid duplication.

Next, the aqueous transparent flame retardant paint is applied onto the combustible object. The aqueous transparent flame retardant paint may be applied onto the combustible object using a spray or roller. The combustible object may be wood such as plywood, solid wood, etc. as a material requiring flame retardant treatment.

Thereafter, a drying process is performed. As a result, a transparent flameproof coating film is formed on the combustible object. As an example, the flame retardant coating film may be obtained by drying the coating applied on the combustible object for about 7 days. Here, since the coating film formed on the object has excellent flame retardancy even at a relatively thin thickness, it is preferable that the coating film is formed to have a dry thickness of about 70 to 120 μm.

Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples. However, the following examples are provided to illustrate the present invention, and the present invention is not limited to the following examples and may be variously modified and changed. In the following examples, the content means parts by weight.

Preparation of an aqueous transparent flame retardant paint

Example 1

 57 parts by weight of nonionic acrylic emulsion resin, 0.3 parts by weight of Degussa Foamex 810 (product name) as antifoaming agent, 4.5 parts by weight of Eastman Texanol (product name) as fugitive, and slip agent 3.0 parts by weight of Neotex PS-35 (product name) of Daedong Trading Co., Ltd. 0.2 parts by weight of BYK-346 (product name) of BYK company as a wetting agent, 0.5 parts by weight of Sky Bio B-95 (product name) of SK chemicals as a preservative 0.5 parts by weight of ROAM & HAAS SCT-275 (product name) was mixed uniformly to form a first mixture, 20.7 parts by weight of water, 0.3 parts by weight of BYK Disperbyk 190 (product name) as a dispersant, melamine polyphosphate (retardant) 13 parts by weight of melamine polyphosphate) was added and rapidly dispersed to form a second mixture. The second mixture was mixed with the first mixture formed as described above while stirring at low speed to obtain an aqueous transparent flame retardant paint.

Example 2

 57 parts by weight of nonionic acrylic emulsion resin, 0.3 parts by weight of Degussa Foamex 810 (product name) as antifoaming agent, 4.5 parts by weight of Eastman Texanol (product name) as fugitive, and slip agent 3.0 parts by weight of Neotex PS-35 (product name) of Daedong Trading Co., Ltd. 0.2 parts by weight of BYK-346 (product name) of BYK company as a wetting agent, 0.5 parts by weight of Sky Bio B-95 (product name) of SK chemicals as a preservative 0.5 parts by weight of ROAM & HAAS SCT-275 (product name) was added and uniformly mixed to form a first mixture. 20.7 parts by weight of water, 0.3 parts by weight of BYK Disperbyk 190 (product name) as a dispersant, and ammonium polyphosphate (retardant) 10 parts by weight of ammonium polyphosphate) and 3 parts by weight of aluminum trihydroxide are added thereto, followed by high speed dispersion to form a second mixture. The second mixture was mixed with the first mixture formed as described above while stirring at low speed to obtain an aqueous transparent flame retardant paint.

Comparative Example 1

 50 parts by weight of anionic acrylic emulsion resin, 0.3 parts by weight of Degussa Foamex 810 (product name) as an antifoaming agent, 4.5 parts by weight of Eastman Texanol (product name) as a fusing agent, and a slip agent 3.0 parts by weight of Neotex PS-35 (product name) of Daedong Trading Co., Ltd. 0.2 parts by weight of BYK-346 (product name) of BYK company as a wetting agent, 0.5 parts by weight of Sky Bio B-95 (product name) of SK chemicals as a preservative 0.5 parts by weight of ROAM & HAAS SCT-275 (product name) was added and uniformly mixed to form a first mixture. 27.7 parts by weight of water, 0.3 parts by weight of BYK's Disperbyk 190 (product name) as a dispersant and melamine polyphosphate as flame retardant ( 13 parts by weight of melamine polyphosphate) was added and rapidly dispersed to form a second mixture. The second mixture was mixed with the first mixture formed as described above under low speed stirring to obtain an aqueous transparent flame retardant paint.

Comparative Example 2

About 29 parts by weight of organic solvent xylene, about 10 parts by weight of methyl ethyl ketone and about 10 parts by weight of ethyl acetate are added about 36 parts by weight of Superchlon 510 (trade name of Sanyo Kokusaku Pulp, Japan), a chlorinated rubber resin, and The rubber resin was completely dissolved. The stirrer was about 2000RPM to about 3000RPM to make the stirring smoothly. About 11 parts by weight of Beckacite 1001, a phenolic resin (trade name, Gangnam Hwasung, Korea) was added to the first mixture in which the chlorinated rubber resin was dissolved, followed by stirring to completely dissolve it. About 7 parts by weight of a plasticizer, Chlorinated Parraffin 52 (trade name of ICI, Australia) and Inbraflex A-6 (trade name of INBRA, Brazil), a plasticizer, in a second mixture of chlorinated rubber and phenolic resin completely dissolved. And about 0.5 parts by weight of BYK-066 (BYK trade name, Germany), an antifoaming agent, was mixed to prepare an oil-based transparent flame retardant coating composition.

Flame Retardant Film Evaluation

Each of the aqueous transparent flame retardant paints prepared by Examples 1 and 2 and Comparative Example 1 and the oil-based flame retardant paints prepared by Comparative Example 2 were combustible materials in the form of combustible materials (190 mm 290 mm, 4.4). The coating film was apply | coated to mm thickness or less), and it dried at room temperature for about 7 days, and obtained the flameproofing film which has a dry coating thickness of about 100 micrometers. In addition, each of the flame retardant membrane specimens were heated for about 2 minutes by a combustion tester to measure the following four characteristics for the evaluation of flame retardant performance, and the appearance and transparency were visually evaluated. The impact area was measured using a pranimeter with a minimum division of 0.1 cm 2 or less. The results of the flame retardant performance evaluation is shown in Table 1 below.

(1) Flame retardant time: It means the time from the time when the flame of burner is removed to the state of burning out of flame. The standard value is about 10 seconds or less.

(2) Residual time: The time from when the burner's flame is removed to the time when the flame without burning the flame ceases. The standard value is about 30 seconds or less.

(3) Carbon area: It refers to the carbonized area where the plywood is burned after heating for about 2 minutes.

(4) Carbonization length: Refers to the longest length of carbonization when plywood is burned after heating for about 2 minutes.

Table 1 Flame retardant of the flame retardant membrane prepared in Examples 1 and 2 and Comparative Examples 1 and 2

division Example 1 Example 2 Comparative Example 1 Comparative Example 2 Dry film thickness [㎛] 100 100 100 100 Exterior Good Good Good Good Transparency Good Good Bad Good Afterglow time [sec] 0 0 0 0 Residual time [seconds] 0 0 0 0 Bomb area [㎠] 27 25 45 22 Carbonization Length [cm] 5.7 5.5 7.2 5.5

As described above, the aqueous transparent flame retardant paint according to the present invention does not contain a halogen compound but has almost the same flame retardant performance as the conventional oil-based transparent flame retardant paint in spite of having an aqueous characteristic. Accordingly, since the aqueous transparent flame retardant paint replaces the organic solvent with water and does not use any halogen compounds, the water-based transparent flame retardant paint can be safe in terms of worker's working environment and environmental pollution since the generation of toxic gases is blocked in the event of a fire. It can provide lifesaving time.

The present invention has been described above with reference to preferred embodiments of the present invention, but those skilled in the art may variously modify the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. And can be changed.

Claims (7)

30 to 70 parts by weight of the nonionic acrylic emulsion resin, 5 to 15 parts by weight of a flame retardant, 3 to 12 parts by weight of an additive including an antifoaming agent, a fusion agent, a slip agent, a preservative, a thickener, a humectant and a dispersant, and 10 to 30 parts by weight of water. Aqueous transparent flame retardant paint containing. According to claim 1, wherein the additive is 0.1 to 0.5 parts by weight of antifoaming agent, 0.5 to 5 parts by weight of fusing agent, 1-3 parts by weight of slip agent, 0.1 to 0.5 parts by weight of wetting agent, 0.1 to 0.5 parts by weight of preservative, thickener 0.5 to 1.5 Aqueous transparent flame-proof paint containing 0.1 weight part-0.5 weight part of dispersing agents. The aqueous transparent flame retardant paint according to claim 1, wherein the nonionic acrylic emulsion resin has a glass transition temperature value of 0 to 50 ° C. According to claim 1, The flame retardant is aluminum trihydroxide (aluminum trihydroxide), ammonium polyphosphate (ammonium polyphosphate), inorganic acid, amine phosphate (amine phosphate), amide phosphate (amide phosphate), amine sulfate , Consisting of melamine phosphate, dimelamine phosphate, melamine pyrophosphate, melamine polyphosphate, phosphate ester and tricresyl phosphate An aqueous transparent flame retardant paint, characterized in that at least one selected from the group. 30 to 70 parts by weight of nonionic acrylic emulsion resin, 0.1 to 0.5 parts by weight of antifoaming agent, 0.5 to 5 parts by weight of fusing agent, 1 to 3 parts by weight of slip agent, 0.1 to 0.5 parts by weight of wetting agent, 0.1 to 0.5 parts by weight of preservative and thickener Forming a first mixture in which 0.5 to 1.5 parts by weight are mixed; Forming a second mixture of 10 to 30 parts by weight of water and 5 to 15 parts by weight of a flame retardant and 0.1 to 0.5 parts by weight of a dispersant; And Mixing the first mixture and the second mixture to form a water-soluble transparent flame retardant paint. 30 to 70 parts by weight of nonionic acrylic emulsion resin, 5 to 15 parts by weight of flame retardant, 3 to 12 parts by weight of additives including antifoaming agent, fusing agent, slip agent, preservative, thickener, wetting agent and dispersant and 10 to 30 parts by weight of water Preparing an aqueous transparent flame retardant paint comprising; Applying the water-soluble transparent flame retardant paint on the combustible object; And Forming a transparent flame-proof coating film on the object by performing a drying process. The method of forming a transparent flameproof coating film according to claim 4, wherein the flameproof coating film is formed to have a thickness of 70 µm to 120 µm.