KR102221814B1 - Hybrid flame retardant paint manufacturing method, flame retardant paint construction method using factory flame retardant paint - Google Patents

Abstract

The present invention relates to a hybrid flame-retardant paint manufacturing method and to a hybrid flame-retardant paint construction method using a flame-retardant paint construction device. The present invention comprises: an aqueous resin; ethylbenzene; xylene; toluene; and an inorganic flame-retardant. According to the present invention, water resistance is good, adhesion and flexibility to a synthetic resin are excellent, various facilities are safely protected by preventing or delaying the burning of structures in case of sudden fire within the facility, thereby minimizing damage. In addition, a coating solution using a small amount of the inorganic flame retardant and a photocatalyst are mixed and applied to coating, and thus in addition to flame retardancy and water resistance, due to the application of the flame retardant paint, it is not only a flame retardant effect but also an excellent heat shielding effect due to a foaming function in case of fire in steel structures, tunnels, buildings, and the like, thereby securing the stability of the structure by preventing the explosion of a fire-resisting paint from the steel structure and high-strength concrete. In the case of steel structure, it promotes the safety of the structure due to the decrease in the strength of the steel structure due to high heat in the event of a fire due to the foaming and heat shielding functions of the flame retardant paint.

Description

Hybrid flame retardant paint manufacturing method and hybrid flame retardant paint construction method using factory values at the time of flame retardant paint {Hybrid flame retardant paint manufacturing method, flame retardant paint construction method using factory flame retardant paint}

The present invention relates to a hybrid flame retardant paint manufacturing method and a hybrid flame retardant paint construction method using factory values at the time of flame retardant paint, and more specifically, a coating solution using a small amount of an inorganic flame retardant and a photocatalyst are mixed and applied to the coating to provide flame retardancy and water resistance. Manufacture of hybrid flame retardant paint to secure structure stability by preventing explosion of fireproof paint and high-strength concrete due to excellent heat shielding effect as well as flame retardant due to foaming function in case of fire in steel structures, tunnels, and buildings due to coating application It relates to a method and a hybrid flame retardant paint construction method using the factory value of flame retardant paint.

In the late 1960s, research on the development of hybrid flame retardant paints was started to protect building materials from fire with the large-scale construction boom that occurred mainly in advanced countries.

Early research in this period focused on the development of materials with excellent flame retardancy without considering environmental pollution or harmfulness to the human body.

However, as data on the seriousness of environmental pollution and human harm caused by the use of flame-retardant materials by environmental protection organizations have been frequently published, the scope of use of flame-retardant materials and restrictions on the use of flame-retardant materials are being reinforced worldwide.

For this reason, recent research on the development of hybrid flame retardant paints in advanced countries is focusing on product development that emphasizes environmental aspects such as low toxicity, low corrosion resistance, and low smoke resistance, as well as safety of the human body, as well as simple flame retardancy. In order to improve competitiveness in advanced countries, it is time to develop a hybrid flame retardant paint and flame retardant method that is environmentally friendly and has human stability that can meet the trend of the times in Korea.

Therefore, the present invention aims to develop an environment-friendly hybrid flame retardant paint focusing on inorganic flame retardants that has low emission of volatile organic compounds and escapes from bromine/halogen, which is being regulated worldwide. It can be used for securing fire resistance of plywood, wood, various plastics, steel structures, electric wires, communication lines, underground structures, tunnel structures, and high-strength concrete structures, and is expected to be applied for environmental improvement by mixing with photocatalytic paints. do.

In other words, the flame-retardant coating technology that coats a flame-retardant material on the surface of a material is a flame-retardant coating technology that gives flame-retardant properties and can be applied to a variety of materials by mixing the flame-retardant material with a coating solution on the material surface and coating it with a thin film. There is an advantage.

In addition, this flame-retardant coating technology uses a small amount of flame-retardant substances (10-20% of the amount of the material is added when mixing the coating liquid) compared to the compounding technology that adds a large amount of flame-retardant substances, so that the emission of environmental pollutants can be minimized. It is an environment-friendly clean technology.

For this reason, some advanced countries such as the United States, Europe, and Japan, where environmental regulations are severe, use surface coating technology, but due to the difficulty of technology development, commercialization has not been successful until now.

In addition, there are generally methods of applying such hybrid flame retardant paints using a brush, roller, or spray, but a method for effectively applying such a hybrid flame-retardant paint to a vertical wall surface has not been developed.

Therefore, there is a need for a new method to solve this problem.

Korean Patent Registration No. 10-0529010 "Fe compound based heat radiating coating material having good heat emissivity and coating method thereof"

The present invention is to solve the above problems, by mixing a coating solution using a small amount of inorganic flame retardant and a photocatalyst, and applying it to the coating, in addition to flame retardancy and water resistance, due to the application of flame retardant paint, it has a foaming function in case of fire in steel structures, tunnels, buildings, etc. To provide a hybrid flame-retardant paint manufacturing method and a hybrid flame-retardant paint construction method using the factory value of flame-retardant paint for securing the stability of the structure by preventing explosion of the fire-retardant paint and high-strength concrete of steel structure due to excellent heat shielding effect as well as flame retardant. will be.

However, the objects of the present invention are not limited to the above-mentioned objects, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the hybrid flame-retardant paint manufacturing method according to an embodiment of the present invention includes a urethane emulsion resin, ethylene vinyl acetate emulsion resin, and acrylic silicon emulsion resin. resin), acrylic emulsion resin, vinyl acrylic resin, potassium silicate inorganic resin (Potassium silicate). After being made into a gel type having a viscosity by stirring at a weight ratio of 10 to 12: 5 to 3: 5 to 3: 1 to 2 using a seong-based resin, PLA resin, cellulose nanofiber, and carbon fiber, the gel Formed by stirring at least one or two or more selected from ethylbenzene, xylene, toluene, inorganic flame retardant, and CNT nanocomposite adhesive, while the aqueous resin mixture is 23.2 kJ/ It has a heat of fusion between g and 25.7 kJ/g, and when it is coated with a hybrid flame-retardant paint using an aqueous resin mixture, it does not dissolve for more than 30 minutes when heated to 245° C. when it is 0.2 mm thick. Compared to the use, the tear strength is increased by 1.3 to 1.5 times and the tensile strength is increased by 2.3 to 2.5 times, and the cellulose nanofibers are made of foam-type cellulose nanofiber-based raw materials, but the foaming-type cellulose nanofiber-based raw material is used. The extruded melt is formed by extruding using an extruding device. It is dissolved at a temperature of 225 to 235 ℃, and when passed through the melted extrusion melt, a film-type foamed cellulose nanofiber-based raw material sheet is formed in a T-die method. , A film-type foot with a cooling device attached to the exit of the die. After cooling the foam-type cellulose nanofiber-based raw material sheet, and cooling the film-type foam-type cellulose nanofiber-based raw material sheet when cooling, it is transferred to a guide roller, and a guide roller corresponding to room temperature in the temperature setting range It is set in the range of 12°C to 15.7°C in consideration of the temperature difference immediately after the production of the film-type foamed type cellulose nanofiber-based raw material sheet using the cooling by cooling and the T-die method by the die for the extruded melt. The cooled film-type foam-type cellulose nanofiber-based raw material sheet is guided to a stretching device, and the entire guide roller is transferred to the stretching device for the film-type foam-type cellulose nanofiber-based raw material sheet by a guide roller. It is characterized in that the produced by providing a thermal stabilization process at room temperature according to the length setting is used.
A hybrid flame-retardant paint construction method in which a hybrid flame-retardant paint manufactured by the manufacturing method according to an embodiment of the present invention is applied to the vertical wall surface 1 with at least one of brush coating, roller coating, and spray coating in order to achieve the above object, A washing step of washing the vertical wall surface 1 by spraying water on the vertical wall surface 1; A drying step of heating and drying the washed vertical wall surface (1) and checking the dryness of the vertical wall surface (1); And a coating film forming step of forming a coating film by applying a hybrid flame retardant paint to the dried vertical wall surface (1). It characterized in that it comprises a.
In order to achieve the above object, as a hybrid flame retardant paint construction method in which the hybrid flame retardant paint manufactured by the above manufacturing method according to an embodiment of the present invention is applied to the vertical wall surface (1), water is sprayed onto the vertical wall surface (1). The washing step of washing the vertical wall surface (1), the drying step of checking the dryness of the vertical wall surface (1) while heating and drying the washed vertical wall surface (1), and the drying step of checking the dryness of the vertical wall surface (1). It includes a coating film forming step of applying a hybrid flame retardant paint to form a coating film, and the film forming step is carried out using factory values for hybrid flame retardant paints, and for hybrid flame retardant paints, a wheel 11 is provided on the lower side to form a vertical wall surface. (1) In a state close to the vehicle (10) configured to move in the lateral direction along the vertical wall surface (1), and the vehicle (10) is slidably coupled to the vehicle (10) forward and backward by the positioning means (21). The transfer unit 20 for which the directional position is adjusted, and the application unit 40 which is provided so as to extend in the vertical direction on the transfer unit 20 to apply hybrid flame retardant paint to the vertical wall surface 1, and the application unit 40 It includes a control means (70) for controlling the operation, and the coating unit (40) extends in the vertical direction and is configured in a cylindrical shape with an open front facing the vertical wall surface (1), and is located in the lateral direction of the washing case (31). It is provided on the transfer table 20 so that when the transfer table 20 is transferred forward, the application case 41 is positioned so that the front periphery is spaced apart from the vertical wall surface 1, and the inside of the application case 41 is in the vertical direction. A lift guide 42 provided to extend to the lift guide 42, a lift platform 43 that is coupled to the lift guide 42 so as to be lifted and lowered by the lift driving means 44, and the lift platform 43 provided to face the front. The paint spraying nozzle 45 and the paint supplying means 46 provided in the paint spraying nozzle 45 to supply hybrid flame retardant paint to the paint spraying nozzle 45, and a coating case connected to one side of the coating case 41 (41) It characterized in that it comprises an exhaust pump 47 for discharging the air inside to the outside.
At this time, an observation window 41a is formed on the circumferential surface of the coating case 41, and an internal washing means 50 for washing the inner surface of the observation window 41a is provided inside the coating case 41, and the inside The washing means 50 includes an elevating bar 51 provided to be elevating in the interior of the application case 41, an elevating means 52 connected to the elevating bar 51 to elevate the elevating bar 51, A wiper member 53 provided on the lifting bar 51 and slid toward the inner surface of the observation window 41a by an actuator 53a to selectively adhere to the inner surface of the observation window 41a, and a wiper member 53 The spray pipe 54 is provided on the upper surface of and sprays the oil supplied by the oil supply means 54a to the inner surface of the observation window 41a, and the application case 41 so that it is located under the observation window 41a. It is provided inside of the wiper member 53 and includes a collection bin 55 for collecting the removed oil by being scraped down by the wiper member 53, and is rotatably coupled to the hoisting platform 43 so as to be rotatable forward and backward to the rotation driving means 61. When the viewing window 64 through which the light passes is rotated toward the front or the rear, the lighting lamp 60 is provided at the rear of the lighting lamp 60 and when the lighting lamp 60 is rotated toward the rear, the viewing window of the lighting lamp 60 (64) It further includes a shielding member 65 that is in close contact with the outer surface to cover the viewing window 64, and the control means 70 is provided with an input means 71 that allows the operator to manipulate and input a control command. , The control means (70) operates the inner washing means (50) at a certain period when the paint supply means (46) is operated so that the inner surface of the observation window (41a) is maintained in a clean state, and at the same time, the lighting lamp (60) Is turned off and rotates toward the rear, and when the operator manipulates the input means 71 to input a control command, the operation of the paint supply means 46 is stopped and the rotation driving means 61 is controlled to control the lighting lamp 60 ) Is rotated to face the front, and then the lighting 60 is turned on.

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The hybrid flame retardant paint manufacturing method according to the embodiment of the present invention and the hybrid flame retardant paint construction method using factory values at the time of flame retardant paint are composed of aqueous resins, ethylbenzene, xylene, toluene, and inorganic flame retardants, so that water resistance is good and synthetic resins It has excellent adhesion and bendability to the facility, and protects various facilities safely by preventing or delaying the burning of the structure from sudden fire in the facility, minimizing the damage, and mixing a coating solution and photocatalyst using a small amount of inorganic flame retardant. In addition to flame retardancy and water resistance, it is applied to the coating, and due to the application of flame retardant paint, it is not only flame retardant by the foaming function in case of fire in steel structures, tunnels, buildings, etc., but also has excellent heat shielding effect to prevent the explosion of the fireproof paint and high-strength concrete of the steel structure. It can provide an effect to ensure stability.

In addition, the hybrid flame retardant paint manufacturing method and the hybrid flame retardant paint construction method using factory values for flame retardant paint according to another embodiment of the present invention, by using a water-based resin and an eco-friendly material, reduce the odorless good working environment and environmental pollution. So that it can be used as an environmentally friendly paint.

In addition, the hybrid flame retardant paint manufacturing method and the hybrid flame retardant paint construction method using factory values for flame retardant paint according to another embodiment of the present invention do not contain halogen compounds by using an inorganic flame retardant, thus saving lives from toxic gases and dioxins in the event of a fire. It provides a protective effect.

In addition, the hybrid flame-retardant paint manufacturing method and the hybrid flame-retardant paint construction method using factory values for the hybrid flame-retardant paint according to another embodiment of the present invention have excellent effects in removing NOx and SOx toxic gases generated in the event of a fire by using a photocatalyst. Provides.

1 is a photograph showing a comparison between before and after the heat release rate test specimen test,
Figure 2 is a cross-sectional plan view showing a hybrid flame retardant paint factory value according to the present invention,
3 is a plan cross-sectional view showing an enlarged main part of the hybrid flame retardant coating apparatus according to the present invention;
Figure 4 is a side cross-sectional view of a hybrid flame retardant coating apparatus according to the present invention,
Figure 5 is a side cross-sectional view showing an enlarged view of the lighting lamp of the hybrid flame retardant coating apparatus according to the present invention,
Figure 6 is a side cross-sectional view showing the paint spray nozzle of the hybrid flame retardant paint construction apparatus according to the present invention,
7 is a front cross-sectional view showing a cross section taken along line AA of FIG. 6;
FIG. 8 is a front cross-sectional view showing a cross section taken along line BB of FIG. 6;
9 is a circuit configuration diagram showing a factory value for hybrid flame retardant paint according to the present invention,
10 to 12 are reference diagrams showing a method of constructing a hybrid flame retardant paint using factory values for the hybrid flame retardant paint according to the present invention.

Hereinafter, a detailed description of a preferred embodiment of the present invention will be described with reference to the accompanying drawings. In the following description of the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted.

The composition of the hybrid flame-retardant paint according to the embodiment of the present invention is a white liquid, and the nonvolatile content (%) is 71.5, the resin type and content are Vinyl Acrylic Resin (acrylic vinyl resin), and the solvent (%) is ethylbenzene C ₆ H ₅ CH ₂ CH ₃ (≒44.0), Xylene C ₈ H ₁₀ (≒10.0), and toluene C ₇ H ₈ (≒0.2) are used, and the type and content (%) of flame retardants are Si-based Can be formed of flame retardant (≒27.5),

Here, the composition of the flame retardant may be formed by mixing a weight ratio of MONO Penta-e 9.10 to 9.56 and Melamine 0.13 to 0.14 in addition to the polyphosphate ammonium (APP) 29.29 to 30.75.

Hereinafter, more specifically, a hybrid flame retardant paint according to another embodiment of the present invention will be described. Hybrid flame retardant paint is 47 to 52 parts by weight of ethylbenzene, 26 to 32 parts by weight of xylene, 0.21 to 0.32 parts by weight of toluene, 71 to 73 parts by weight of an inorganic flame retardant, It consists of 2 to 3 parts by weight of the CNT nanocomposite adhesive.

The aqueous resin mixture is a gel type having viscosity by stirring at a weight ratio of 10 to 12: 5 to 3: 5 to 3: 1 to 2 using an aqueous resin, PLA resin, cellulose nanofiber, and carbon fiber. After being prepared, it can be formed by stirring ethylbenzene, xylene, toluene, inorganic flame retardant, and CNT nanocomposite adhesive in a gel composition.

On the other hand, the aqueous resin mixture has a heat of fusion between about 23.2 kJ/g and 25.7 kJ/g. When the aqueous resin mixture is coated with a hybrid flame retardant paint, when the thickness is 0.2 mm, when heated to 245 ℃ 30 It does not dissolve for more than a minute, and the tear strength increases by 1.3 to 1.5 times or more, and the tensile strength increases by 2.3 to 2.5 times or more compared to using the aqueous resin alone.

Water-based resins include urethane emulsion resin, ethylene vinyl acetate emulsion resin, acrylic silicon emulsion resin, acrylic emulsion resin, vinyl acrylic resin ( Vinyl acrylic resin), potassium silicate inorganic resin (Potassium silic) at least one selected from one or a mixture of two or more.

In other words, the aqueous resin is urethane emulsion resin, ethylene vinyl acetate emulsion resin, acrylic silicon emulsion resin, acrylic emulsion resin, vinyl acrylic. One or two or more water-based resins selected from resin (Vinyl acrylic resin) and potassium silicate inorganic resin (Potassium silic) are used, and the water-based resin has good durability such as chemical resistance, weather resistance, and flexibility, and exhibits excellent water resistance. do.

In addition, water-based resins dry well in humid places such as an underground cavity, and even after drying, there is no cracking and peeling of the coating film due to moisture, and when painting the inner surface of a cable made of PVC material, it has good adhesion and excellent flexibility.

The glass transition temperature of this aqueous resin is -5°C to 30°C, and the coating film formation temperature is 0°C to 25°C.

In particular, the total content of the aqueous resin mixture including the aqueous resin is preferably 100 parts by weight based on 47 to 52 parts by weight of ethylbenzene based on the total hybrid flame retardant paint, and when the content of the aqueous resin mixture is less than 100 parts by weight Water resistance, flexibility, and adhesion are poor, and when the content of the water-based resin exceeds 100 parts by weight, the flame retardant performance is deteriorated.

PLA resin is a natural plant-based raw material with corn starch as the main raw material, and does not contain synthetic resins (PC, ABS, etc.) and is 100% decomposed under natural conditions. In addition, it can prevent the generation of harmful substances such as dioxin and other environmental pollution. PLA (PolyLactic Acid) can be substituted for injection and extruded plastics, and it can be commercialized as an innovative eco-friendly resin with general-purpose physical properties. On the other hand, PLA has the characteristics of crystallinity, natural circulation, biocompatibility, and CO ₂ reduction, and PLA is an eco-friendly material that can naturally decompose products as a plant-based raw material.

On the other hand, the PLA used in the present invention is not only simple PLA, but also a single PLA fiber with a glass fiber in a weight ratio of 7.1 to 8.2: 1.2 to 1.3, put it in a carding machine, and form a web to use a sheet formed, or After foaming a sheet layer prepared by mixing PLA short fibers and synthetic fibers corresponding to natural fibers, it can be used by cutting into a preset size.

As the synthetic fiber used in the present invention, low melting point polyester, polyester, or polypropylene may be used alone or in combination, and polypropylene is preferably used. At this time, the mixing ratio of the synthetic fiber and the natural fiber is not particularly limited, but with respect to 100 parts by weight of natural fiber, 23 to 25 parts by weight of synthetic fiber, 1 to 2 parts by weight of loess, 0.4 to 0.6 parts by weight of mud flat soil (mud), amphibole 0.1 to 0.2 parts by weight of powder, 0.3 to 0.4 parts by weight of ore powder, 2.1 to 2.3 parts by weight of a hardener, and 10 parts by weight of water are included. Optionally, the ore powder having a color may further include an ore powder having a desired color.

The synthetic fiber in the mixing process of the short PLA fiber and the synthetic fiber may have a thickness of 10 to 20 denier, and a length of 12 to 13 nm.

In the present invention, cellulose nanofibers and carbon fibers are used to overcome the limitations of significantly lowering the mechanical properties of hybrid flame retardant paints when manufactured with only aqueous resins and PLA resins.In particular, cellulose nanofibers are commercial wood pulp (hardwood or softwood). Is oxidized using TEMPO ((2,2,6,6-tetramethylpiperidin-1-yl)oxy), and then prepared by mechanical treatment (yield 90% or more) can be used, and the carboxy group content is It is preferable to use 4.3 to 4.5 mmol/g of cellulose, a fiber width of 50 to 70 nm, and a fiber length of 100 to 120 μm.

That is, the cellulose nanofibers are made into a mesh-type film through an additional process, ^{and after cutting the prepared film-type member into a size of 75 to 85 μm 2} , water-based resin, PLA resin, cellulose nanofiber, carbon fiber By stirring together with, it is possible to improve the tensile strength, the breaking strength, and the rupture strength of the hybrid flame retardant paint by 2.3 to 2.5, 1.5 to 1.7, and 0.6 to 0.7 times, respectively, as compared to that of using only the aqueous resin.

To this end, in the processing of cellulose nanofibers, a cellulose nanofiber-based raw material, which is a resin composition consisting of 5 to 4 parts by weight of ethylene vinyl acetic acid copolymer (EVA) and 2 to 3 parts by weight of polyurethane, based on 100 parts by weight of cellulose nanofibers The material produced by the above resin composition not only shows improved performance in flexural strength, load deformation temperature, and Izod impact strength by using only cellulose resin, but also lowers the manufacturing cost because the composition material itself is inexpensive. I can.

In another embodiment of the present invention, the weight ratio of each raw material composition constituting the cellulose nanofiber-based raw material may be performed in a manner requested by an orderer, and may be manufactured based on other main raw materials.

That is, each extrusion device uses a cellulose nanofiber-based raw material, and it is possible to mix the foam-type cellulose nanofiber-based raw material by a screw method together with a foaming agent. Here, in order to improve the tensile strength of the hybrid flame-retardant paint formed with the coating film having the above composition, the weight average molecular weight of the cellulose nanofiber-based raw material is 150,000 g/mol or more, and the melt index is 0.1 to 0.5 g/10 minutes (240° C.). Preferably, the nanofiber-based raw material is a cellulose nanofiber having a melt index of 0.1 to 0.5g/10 minutes (240°C), a molecular weight distribution (PI) of 4.5 or more, and a melt strength of 450 mN or more, as described above. 3 to 4 parts by weight of a foaming agent are blended based on 100 parts by weight of the base material.

If the content of the foaming agent used to prepare the cellulose nanofiber-based raw material exceeds 3 parts by weight, the stiffness, heat resistance, and surface hardness are significantly lowered, which is unsuitable for the application of insulation, and if it is less than 4 parts by weight, specific gravity, foamability, and Moldability and impact characteristics are deteriorated, which is not preferable. At this time, the chemical blowing agent mainly used is preferably _{Sodium bicarbonate (NaHCO 3 ).}

By using such a foaming-type cellulose nanofiber-based raw material, it is possible to provide an advantage of not only lowering the specific gravity but also increasing the insulation property by mixing with a foaming agent with respect to the specific gravity of the cellulose nanofiber raw material.

On the other hand, the foam-type cellulose nanofiber-based raw material is extruded using an extrusion device to form an extruded melt, where it is preferably dissolved at a temperature of 225 to 235 °C. Thereafter, when passing through the molten extrusion melt, a film-type foam-type cellulose nanofiber-based raw material sheet is formed in a T-die method, and a cooling device attached to the exit of the die is used as a film-type foam-type cellulose nanofiber-based raw material sheet. To cool. During cooling, the film-type foam-type cellulose nanofiber-based raw material sheet is cooled, and then transferred to a guide roller for cooling. The cooling device used here can control the temperature of the film-type foamed type cellulose nanofiber-based raw material sheet in a preset temperature range using a Peltier element, a temperature sensor, and an Arduino substrate. The temperature setting range is from 12℃ to 12℃ in consideration of the temperature difference immediately after the production of the film-type foam-type cellulose nanofiber-based raw material sheet using cooling by a guide roller corresponding to room temperature and a T-die method by a die for the extruded melt. It is desirable to set it in the range of 15.7°C. Thereafter, the film-type foam-type cellulose nanofiber-based raw material sheet cooled by the guide roller is guided to the stretching device, and the film-type foam-type cellulose nanofiber-based raw material sheet is transferred to the stretching device by the guide roller. While, it is possible to provide a thermal stabilization process at room temperature according to the setting of the overall length of the guide roller.

The stretching device performs stretching by pressing and pulling a sheet of foam-type cellulose nanofiber-based raw material that has passed through a guide roller to form a thin film. More specifically, the area ratio before and after stretching of the foam-type cellulose nanofiber-based raw material sheet, which is the final product, by performing stretching in the transverse direction under heating and pressing the film-type foam-type cellulose nanofiber-based raw material sheet during stretching. This 1: 3.2 to 3.5 times to increase. Here, the heating temperature during stretching is 123 to 125 °C, the pressurized state is in the state of 230 to 330 mbar, and when the thickness of the foam-type cellulose nanofiber-based raw material sheet is produced at 15 μm, it is preferable to perform it at 123 °C and 270 mbar.

During stretching, the heating temperature within the above-described preferred temperature range should be performed at 123 to 125°C. If the temperature is higher than the temperature range, the degree of freedom of the molecules increases, and the orientation of the molecules is difficult. In addition, when the temperature is lower than the temperature range, stretching is not performed well and the polypropylene sheet is not stretched and is broken.

On the other hand, between the stretching of the foam-type cellulose nanofiber-based raw material sheet and the heat stabilization process, a mesh process is performed with the softening of the foam-type cellulose nanofiber-based raw material sheet, and cutting can be performed in a preset unit using a cutting machine. have.

In this way, by the addition of cellulose nanofibers, hybrid flame-retardant paints have high specific surface area, specific strength, and low density, so they not only exhibit excellent physical properties, but also can obtain composites with excellent thermal and mechanical properties with only a very small amount, and eco-friendly and lightweight properties. Can be applied as

On the other hand, next "ethylbenzene" is an aromatic hydrocarbon organic substance.

In particular, ethylbenzene is used in the manufacture of synthetic rubbers, solvents, components of automobile and aviation fuels, and fiber acetate.

Ethylbenzene is mainly a precursor of styrene, resin solvent, diethylbenzene, acetophenone, ethylanthraquinone, ethylbenzene sulfonic acid, propylene oxide, It is used as a chemical intermediate in the production of alpha-methylbenzyl alcohol.

It is also a constituent of gasoline that is not recovered.

In particular, the content of ethylbenzene is preferably 47 to 52 based on 100 parts by weight of the aqueous resin mixture.

In addition, "xylene" is an aromatic hydrocarbon having a structure in which two methyl groups are bonded to a benzene ring. Xylene is a colorless liquid that has a sweet odor and is highly flammable. There are three isomers: ortho-xylene, meta-xylene, and para-xylene.

On the other hand, "toluene" is a compound obtained by substituting one hydrogen atom of benzene with a methyl group, and is a colorless liquid.

It is made by rectifying the diesel obtained by drying coal with sulfuric acid and then rectifying it or by dehydrogenating methylcyclohexane. It is an important compound in organic synthetic chemistry.

Also called methylbenzene. Formula C ₇ H ₈ . It is a colorless liquid with a peculiar odor, has a molecular weight of 92.14, a melting point of -95°C, a boiling point of 110.8°C, and a specific gravity of 0.87 (15°C). Although insoluble in water, it is mixed with most organic solvents such as ethanol, ether, and benzene in an arbitrary ratio.

It is an important compound in organic synthetic chemistry, is used as a raw material for synthesizing many substances, and has a wide range of uses as a solvent. In particular, toluene is preferably 0.21 to 0.32 parts by weight based on 100 parts by weight of the aqueous resin mixture.

Meanwhile, as "inorganic flame retardants", aluminum hydroxide, magnesium hydroxide, silicon oxide, zinc stannate, molybdate, guanidine compounds, and zirconium It can be formed by using one or two or more inorganic flame retardants selected from, or as a composition of the flame retardant described above, by mixing a weight ratio of MONO Penta-e 9.10 to 9.56, Melamine 0.13 to 0.14 in addition to ammonium polyphosphate (APP) 29.29 to 30.75. have.

Here, the inorganic flame retardant serves to prevent access of oxygen required for combustion by forming a film on the surface of the resin by diluting the combustible gas by the inert gas during combustion and the by-products generated when the inorganic compound is decomposed by heat and causing a reaction with the resin. Together with the endothermic reaction, it reduces the cooling of the material and the generation of pyrolysis products, and has stability at high temperatures.

The content of the inorganic flame retardant is preferably 71 to 73 parts by weight based on 100 parts by weight of the aqueous resin mixture, and if the content of the inorganic flame retardant is less than 71 parts by weight, the flame retardant performance decreases, and the content of the inorganic flame retardant is more than 73 parts by weight. In this case, workability is deteriorated due to a decrease in fluidity and flexibility is poor.

On the other hand, 5 parts by weight of a photocatalyst is added to 100 parts by weight of the inorganic flame retardant.

The reason why the photocatalyst is added to the inorganic flame retardant is because the removal efficiency of the photocatalyst is high, such as volatile organic chemicals (VOCs), nitrogen oxides (NOx), sulfur oxides (SOx), and fine dust generated during a fire.

Here, the photocatalyst is composed of at least one or a mixture of two or more selected _{from titanium dioxide (TiO 2} ), zinc oxide (ZnO), cadmium sulfide (CdS), and zirconium (ZrO _{2 ).}

In particular, the photocatalyst is a perovskite composite metal oxide such _{as titanium dioxide (TiO 2} ), zinc oxide (ZnO), cadmium sulfide (CdS), zirconium (ZrO ₂ ), vanadium oxide (V ₂ O ₃ ), tungsten (WO _{3 ), etc.} (SrTiO ₃ ) and the like.

Among them, titanium dioxide (TiO ₂ ) does not change even under light, so it can be used semi-permanently, while zinc oxide (ZnO) and cadmium sulfide (CdS) have excellent effects on decomposition of trichloroethylene and tetrachloroethylene. By absorbing silver light, the catalyst itself is decomposed by light to generate harmful zinc (Zn) and cadmium (Cd) ions.

In addition, titanium dioxide (TiO ₂ ) oxidizes all organic matter and decomposes it into carbon dioxide and water, but tungsten (WO ₃ ) has good efficiency as a photocatalyst only for certain substances, and other than that, the efficiency is not as good as _{titanium dioxide (TiO 2 ).} The area that can be done is very limited.

In particular, the photocatalyst is composed of titanium dioxide (TiO ₂ ) 50% by weight, silicon dioxide (SiO ₂ ) 40% by weight, and zinc oxide (ZnO) 10% by weight.

In other words, a photocatalyst that exhibits complex functions such as antibacterial, deodorization, decomposition of air and water pollutants, radiation of far-infrared rays and ultraviolet rays is manufactured into fine particles of several tens of nanometers, and it is made into fibers, deodorant products, and resins (plastics). By applying it to the industrial field and in real life, it is possible to improve the durability, heat resistance, and stability of the function.

Next, the CNT nanocomposite adhesive may be added to improve the adhesion of the washed vertical wall surface 1 of the hybrid flame retardant paint to a construction surface such as concrete.

Here, 50 to 70 parts by weight of filler, 5 to 7 parts by weight of CNT nanocomposite, 5 to 10 parts by weight of diluent, 1 to 5 parts by weight of plasticizer, 3 to 5 parts by weight of thickener, latent hardener based on 100 parts by weight of polyurethane prepolymer It may be formed by adding and mixing 10 to 15 parts by weight and 1 to 2 parts by weight of a thermally conductive adhesive.

Here, the polyurethane prepolymer uses an anionic hydrophilic aqueous polyurethane dispersion, and has a number average molecular weight of 200 g/mol or more and 4000 g/mol or less, and a polymer polyol, diisocyanate, and molecule having an OH functionality of 1.5 or more and 6 or less. Prepared by reacting a polyether having a primary hydroxyl group and a monomolecular weight diol at one end of, and after completely dissolving the prepared prepolymer in an organic solvent, reacting with a diol having a hydrophilic group, a diamine having a hydrophilic group, or a mixture thereof, After neutralizing with a neutralizing agent and adding water as a dispersion medium to prepare an aqueous dispersion, a chain extension reaction is performed by adding a chain extender to the aqueous dispersion, and then the organic solvent in the reaction solution is removed to prepare a resin in the form of a resin.

The filler is characterized in that at least one selected from the group including calcium carbonate, talc, clay, silica, and acid clay. In one embodiment of the present invention, when talc is used, it is added to improve the moldability and hydrolysis resistance of the polyurethane prepolymer, and when the filler is less than 50 parts by weight, the effect of improving dimensional stability when dissolving the polyurethane prepolymer decreases. If it exceeds parts by weight, it may be used as an adhesive, and there may be a concern that durability and heat resistance are remarkably deteriorated during curing.

CNT nano-composite (Carbon Nanotube) raw material having a preset weight ratio of 5 to 7 parts by weight has characteristics such as mechanical properties, conductivity properties, electrical conductivity, heat dissipation, high strength, weight reduction, abrasion resistance, electromagnetic wave removal, etc. Carbon Nanotube) raw material is provided in a state in which a composite plastic resin is formed using PCM capsule powder, organometallic polymer, and polypropylene resin in addition to CNT nanocomposite, when applied to the washed vertical wall surface (1) of hybrid flame retardant paint. In addition to improving adhesion, heat diffusion and heat transfer by the PCM capsule powder against the latent heat of the vertical wall surface (1), and the heat dissipation effect of the CNT nanocomposite can improve the emission efficiency to the outside.

Diluents typically use styrene to reduce the viscosity of the resin for polyurethane adhesive compositions, or function as a useful polymeric reactive diluent for structural adhesives to extend the working time of the structural adhesives without adversely affecting creep. Yes, low molecular weight, polymeric moisture reactive compositions can be utilized.

As the plasticizer, any one selected from the group consisting of diisodecyl phthalate diisononyl phthalate, dioctyl phthalate, dibutyl phthalate, and dioctyl adipate or a mixture of two or more are used.

As a thickener, any one or a mixture of two or more selected from the group consisting of silica, fume silica, bentonite, clay, amide, and cellulose is used.

The latent curing agent is a mixture of one or two or more of substances having a latent property of a primary or secondary amine in the group containing oxazolidine, ketazine, aldimine, ketimine, and aldimine-ketamine. Use it.

On the other hand, the thermally conductive adhesive is a thermally conductive adhesive with excellent adhesiveness and thermal conductivity that additionally contains metal nanowires. As a thermally conductive adhesive, it contains a small amount of nano-sized fine metal nanowires as a conductive filler. By providing a thermally conductive adhesive that exhibits remarkably high thermal conductivity that has not been shown and has excellent adhesiveness and heat dissipation properties at the same time, adhesion performance can be improved through thermal stabilization on the upper and lower surfaces of the hybrid flame retardant paint formation surface.

As described above, the hybrid flame retardant paint according to the present invention is composed of "aqueous resin mixture", "ethylbenzene", "xylene", "toluene", "inorganic flame retardant", and "CNT nanocomposite adhesive".

The hybrid flame-retardant paint according to the present invention having the configuration as described above is composed of an aqueous resin mixture including an aqueous resin, ethylbenzene, xylene, toluene, inorganic flame retardant, and CNT nanocomposite adhesive, thereby dissipating heat of the coated surface. Not only does it improve the yarn compared to before it was applied, it has good water resistance, excellent adhesion and flexibility to synthetic resins, and prevents or delays the burning of the structure against sudden fire in the facility, thereby protecting various facilities safely and preventing its damage. It can be minimized, and by using water-based resins and eco-friendly materials, it can be used as an eco-friendly paint by reducing environmental pollution and a good working environment without odor, and since it does not contain halogen compounds by using inorganic flame retardants and photocatalysts. It can protect people from toxic gases and dioxins in case of fire. In particular, by using the photocatalyst, there is an excellent effect in removing toxic NOx and SOx gases generated in the event of a fire.

Hereinafter, a test for the hybrid flame retardant paint according to the present invention having the configuration as described above will be described.

* Test evaluation

The test report obtained by applying the hybrid flame-retardant paint of the present invention to the GFRC panel reinforcement material developed by the present inventor once and requesting a nationally recognized testing agency to obtain a test report is shown in Table 1 below.

Test purpose: Performance evaluation according to flame retardant notice

Test method: Ministry of Land, Infrastructure and Transport notification No. 2015-744 flame retardant material (KS F ISO 5560-1, KS F 2271)

Test environment: temperature (23±2)℃, humidity (50±5)%

Sample name: GFRC panel + paint

Test regulations: (1) KS F 2271:2006 (2) KS F ISO 5660-1:2008

Flame retardant paint (semi-non-flammable) test result Comparative example Example 1 Example 2 Example 3 Heat dissipation performance (heat release rate) 8Mj/m ² or less 0.7 1.8 1.4

Based on 100 parts by weight of aqueous resin, 50 parts by weight of ethylbenzene, 30 parts by weight of xylene, 0.25 parts by weight of toluene, and 72 parts by weight of an inorganic flame retardant were used for the heat dissipation performance of the vertical wall surface poured into concrete. When the heat dissipation performance is set to a quantitative reference value of 1, based on 100 parts by weight of the aqueous resin mixture, 50 parts by weight of ethylbenzene, 30 parts by weight of xylene, 0.25 parts by weight of toluene, 72 inorganic flame retardants, CNT Example 1 of 2 parts by weight of nanocomposite adhesive, 50 parts by weight of ethylbenzene, 30 parts by weight of xylene, 0.25 parts by weight of toluene, 72 parts by weight of inorganic flame retardant, CNT nanocomposite based on 100 parts by weight of the aqueous resin mixture The heat dissipation performance for the second example, which is 1 part by weight of the adhesive, is shown in Table 2 below.

Comparative example Example 1 Example 2 Heat dissipation performance (heat release rate) One 1.2 1.5

1 shows a photograph showing a comparison before and after the test of the heat release rate test specimen. As shown in Fig. 1, a flame retardant paint that prevents the burning of the mother body with a heat shielding effect and prevents the spread of fire with the characteristic of foaming when exposed to flames in case of fire (including 1 to 20 mm or more depending on the amount of heat based on the coating thickness of 0.1 to 0.3 mm). It can be seen that it is.

In particular, the thickness of the flame retardant paint is 0.1~0.3mm (even with a thin coating film of 100~300μ), it has excellent heat shielding effect to block heat due to the foaming (bulging) property when exposed to high heat from fire.It protects the parent structure from fire due to heat resistance. It can prevent the spread of fire.

Meanwhile, FIGS. 2 to 12 illustrate a method of applying a hybrid flame retardant paint manufactured by the above-described method to a vertical wall surface.

Accordingly, the hybrid flame retardant coating method includes a washing step of washing the vertical wall surface 1 by spraying water on the vertical wall surface 1, and heating the washed vertical wall surface 1 to dry the vertical wall surface 1 at the same time. ), and a coating film forming step of forming a coating film by applying a hybrid flame retardant paint to the vertical wall surface (1) on which the drying is completed.

At this time, the coating film forming step is performed using factory values for hybrid flame retardant paint.

As shown in Figs. 2 to 8, the hybrid flame-retardant paint factory value is provided with a wheel 11 at the lower side of the hybrid flame-retardant paint factory value to form a vertical wall surface 1 in a state close to the vertical wall surface 1 A cart 10 configured to move in a lateral direction according to the cart 10, and a transfer bar 20 that is slidably coupled to the cart 10 and whose position in the front and rear directions is adjusted by a position adjusting means 21, and a transfer bar A coating unit 40 that is provided to extend in the vertical direction at 20 to apply a hybrid flame retardant paint to the vertical wall surface 1 that has passed the washing and drying steps, and a control means for controlling the operation of the coating unit 40 It consists of 70.

The transfer table 20 is installed on a guide rail provided to extend in the front-rear direction on the upper surface of the bogie 10.

The position adjusting means 21 is provided on the upper surface of the bogie 10 so as to extend in the front-rear direction and is connected to the transfer table 20 so that the transfer table 20 slides in the front-rear direction according to the expansion and contraction.

As shown in Figs. 4 and 5, the application unit 40 extends in the vertical direction and is formed in a cylindrical shape with an open front facing the vertical wall surface 1, and the application case 41 The elevating guide 42 provided to extend in the vertical direction therein, and the hoisting platform 43 that is coupled to the elevating guide 42 so as to be elevating and lowered by the elevating driving means 44, and the hoisting platform 43 A paint spraying nozzle 45 provided facing the paint spraying nozzle 45 and a paint supplying means 46 provided in the paint spraying nozzle 45 to supply a hybrid flame retardant paint to the paint spraying nozzle 45, and one side of the coating case 41 It is composed of an exhaust pump 47 that is connected to discharge the air inside the application case 41 to the outside.

The application case 41 is made of a high-strength metal material, and the lower end is fixed to the front so as to be located on one side of the cleaning case 31. When the transfer platform 20 is transferred forward, the front circumference is vertical wall surface (1) It is positioned to be slightly (approximately 5mm) apart from.

To this end, the width of the coating case 41 in the front-rear direction is set so that the front surface of the coating case 41 is located about 5 mm rearward than the front surface of the cleaning case 31.

The lifting driving means 44 is provided so as to extend in the vertical direction inside the application case 41, and the middle part is connected to the lead screw 44a penetrating the lifting table 43 in the vertical direction, and the lead screw 44a. It is composed of a driving motor 44b that rotates the leadscrew 44a forward and backward, and when the leadscrew 44a is rotated forward and backward by the driving motor 44b, the hoisting platform 43 is raised and lowered.

As shown in FIG. 6, the paint spray nozzle 45 is formed with a spray hole 45g at the front end and a supply hole 45h for supplying the hybrid flame retardant paint at the rear end, and is configured in a ring shape on the circumferential surface. First and second supply chambers 45a and 45b are formed to be spaced apart from each other in front and rear, and first and second supply pipes 45c and 45d for supplying air to the first and second supply chambers 45a and 45b Is connected.

In addition, a plurality of first and second injection holes 45e and 45f connected to the first and second supply chambers 45a and 45b are formed to be inclined forward on the inner circumferential surface of the paint injection nozzle 45.

At this time, as shown in FIG. 7, the first injection hole 45e has an inner end inclined clockwise when viewed from the front, and the second injection hole 45f is viewed from the front, as shown in FIG. When it is formed so that the inner end is inclined in a counterclockwise direction.

The paint supply means 46 is provided in the cart 10 and connects the storage tank 46a in which the hybrid flame retardant paint is stored, and the supply hole 45h of the storage tank 46a and the paint spray nozzle 45. An air compressor (46d) connected to the first and second supply pipes (45c, 45d) through a supply pipe (46b), a supply pump (46c) provided in the middle of the supply pipe (46b), and a supply pipe (46e) It consists of

Accordingly, when the supply pump is operated, the hybrid flame retardant paint stored in the storage tank 46a is supplied into the paint spray nozzle 45 through the supply pipe 46b.

And, when the air compressor (46d) is operated, high-pressure air is supplied to the interior of the paint injection nozzle 45 through the first and second injection holes 45e and 45f, and is supplied to the interior of the paint injection nozzle 45. The hybrid flame-retardant paint is sprayed forward through the injection port (45g).

At this time, since the first and second injection holes 45e and 45f are formed to be inclined in the lateral direction, the air supplied into the interior of the paint injection nozzle 45 through the first and second injection holes 45e and 45f is By drawing a spiral in the opposite direction and moving forward, the hybrid flame retardant paint supplied to the interior of the paint spray nozzle 45 is uniformly mixed with air and sprayed forward.

On the other hand, the first supply pipe (45c) is connected to the auxiliary supply pipe (45i) for supplying a fluidizing agent for adjusting the viscosity of the hybrid flame retardant paint, through the auxiliary supply pipe (45i) to the interior of the paint spray nozzle (45) " By supplying "fluidizing agent", the viscosity of the hybrid flame retardant paint sprayed to the front of the paint spray nozzle 45 can be adjusted.

The exhaust pump 47 is connected to the application case 41 through an exhaust pipe 47a to discharge the air inside the application case 41 to the outside at high speed, and an exhaust pipe 47a is provided in the middle of the exhaust pipe 47a. A filter unit 47b for filtering the hybrid flame retardant paint contained in the air discharged through the air is provided.

On the other hand, the rear side of the application case 41 is provided with an observation window 41a that extends in the vertical direction, and an external worker passes through the observation window 41a through the paint spray nozzle 45 to the vertical wall surface (1). It is configured to observe the state of the coating operation by spraying the paint on the surface.

And, the inside of the coating case 41 is provided with an internal washing means 50 for washing the inner surface of the observation window (41a) by lifting by a driving means.

The internal washing means 50 includes an elevating bar 51 provided to be elevating in the interior of the application case 41, an elevating means 52 connected to the elevating bar 51 to elevate the elevating bar 51, A wiper member 53 provided in the lifting bar 51 and slid toward the inner surface of the observation window 41a by an actuator 53a to selectively adhere to the inner surface of the observation window 41a, and a wiper member 53 The spray pipe 54 is provided on the upper surface of and sprays the oil supplied by the oil supply means 54a to the inner surface of the observation window 41a, and the application case 41 so that it is located under the observation window 41a. It is provided in the interior of the wiper member 53 is scraped down to the bottom and consists of a collection container 55 for collecting the removed oil.

The lifting bar 51 is movably coupled to the guide rail 41b provided to be located on both sides of the observation window 41a inside the coating case 41.

The elevating means 52 is provided inside the coating case 41 so as to extend in the vertical direction, and the lead screw 52a is coupled so that the middle part passes through the elevating bar 51, and the lead screw 52a is connected to the lead. It is composed of a drive motor 52b that rotates the screw 52a forward and backward, and when the lead screw 52a is rotated forward and backward with the drive motor 52b, the lifting bar 51 is raised and lowered.

The wiper member 53 is provided with an adhesive member 53b made of a rubber material that is in close contact with the inner surface of the observation window 41a on the rear side.

The actuator 53a is provided on the lifting bar 51 and uses a cylinder mechanism that allows the lifting bar 51 to move forward and backward according to the expansion and contraction.

The injection pipe 54 is provided with a plurality of injection nozzles 54b on the rear side, and is configured to inject the oil supplied by the oil supply means 54a onto the inner surface of the observation window 41a.

The oil supply means 54a pressurizes the oil stored in the reservoir using a pump and supplies it to the injection pipe 54.

At this time, the oil supplied by the oil supply means (54a) is to use a transparent material with a low viscosity, is applied to the inner surface of the observation window (41a), sprayed from the paint spray nozzle (45) to the inside of the application case (41). It functions to prevent the hybrid flame retardant paint scattered into the air from adhering to the inner surface of the observation window 41a.

The collection container 55 is configured in a cylindrical shape with an open upper surface, and a discharge pipe 55a extending to the outside of the coating case 41 is provided on the lower surface thereof, and is configured to discharge the oil collected therein to the outside.

And, it is coupled to the lifting platform 43 so as to be rotatable forward and backward, and the viewing window 64 to which light is irradiated by the rotation driving means 61 is rotated to face the front or rear, and the lighting lamp 60 When the lighting lamp 60 is rotated to face the rear, it is provided at the rear, and a blocking member 65 that is in close contact with the outer surface of the viewing window 64 of the lighting lamp 60 to cover the viewing window 64 is further provided.

The lighting 60 is composed of a cylindrical shape extending in the vertical direction, and an outer case 62 in which a transparent viewing window 64 is formed on one side, and is provided inside the outer case 62 and is turned on through the viewing window 64. It is composed of a lamp 63 that irradiates light to the outside of the 62.

The rotation driving means 61 is provided to be buried in the upper surface of the lifting platform 43 and is connected to the outer case 62 to use a driving motor that rotates the outer case 62.

The covering member 65 has an arc-shaped concave portion corresponding to the outer diameter of the outer case 62 and is disposed so that the concave portion is in close contact with the rear surface of the outer case 62.

The control means 70 is provided with an input means 71 adapted to be operated by an operator to input a control command.

A method of constructing the hybrid flame retardant paint on the vertical wall surface 1 using the hybrid flame retardant paint factory value constructed as described above will be described as follows.

First, in the initial stage, the transfer platform 20 slides backward, and the lift platform 43 maintains an elevated state.

And, when the operator pushes the bogie 10, the bogie 10 moves the hybrid flame-retardant paint on the vertical wall surface 1 to a position to be installed, and inputs a work command using the input means 71, the control means ( 70) by controlling the positioning means 21 to advance the feeder 20 toward the vertical wall surface (1), as shown in Figs. 3 and 4, the application case 41 from the vertical wall surface (1). Close them slightly apart.

And, as shown in FIG. The hybrid flame retardant paint is applied to the vertical wall surface 1 by controlling 44 so that the lifting platform 43 and the paint spraying nozzle 45 descend at a constant speed.

At the same time, the control means 70 operates the exhaust pump 47 to suck the air inside the coating case 41 into the exhaust pipe 47a.

At this time, since the application case 41 is slightly spaced from the vertical wall surface 1, when the exhaust pump 47 is operated, the external air passes through the gap between the application case 41 and the vertical wall surface 1 After flowing into the interior of (41), it is supplied to the filter unit (47b) through the exhaust pipe (47a) together with the hybrid flame retardant paint scattered inside the application case (41), the hybrid flame retardant paint contained in the air is removed. , Only the air from which the hybrid flame retardant paint has been removed is discharged to the outside through the exhaust pipe 47a.

Accordingly, after being sprayed into the interior of the application case 41, the hybrid flame retardant paint that is not applied to the vertical wall surface 1 and scattered into the air inside the application case 41 is prevented from leaking to the outside.

And, in this way, when applying the hybrid flame-retardant paint to the vertical wall surface (1) by using the application unit (40), the control means (70) drives the internal cleaning means (50) at a certain period of the observation window (41a). Remove the hybrid flame retardant paint attached to the inner circumferential surface.

That is, in a state in which the lifting bar 51 is raised, as shown in FIG. 10, by controlling the actuator 53a, the contact member 53b of the upper wiper member 53 is placed on the inner surface of the observation window 41a. When the oil is supplied to the injection pipe 54 by driving the oil supply unit 54a while lowering the lifting bar 51 by controlling the lifting means 52, the oil is supplied to the injection pipe 54, and the oil is supplied through the injection nozzle 54b. It is sprayed on the inner surface of the observation window 41a.

At this time, the oil is uniformly applied to the inner surface of the observation window 41a so that the hybrid flame retardant paint scattered into the interior of the application case 41 does not directly contact and adhere to the inner surface of the observation window 41a, The adhesion member 53b removes the oil applied to the inner surface of the observation window 41a and the hybrid flame retardant paint attached to the oil by scraping downwards together, and the oil removed by the adhesion member 53b is collected on the lower side. After being collected in the barrel 55, it is discharged to the outside through a discharge pipe 55a.

On the other hand, when applying the hybrid flame-retardant paint to the vertical wall surface 1 using the application means as described above, the lighting lamp 60 is rotated rearward in an off state so that the viewing window 64 is covered by the blocking member 65, The hybrid flame retardant paint scattered into the interior of the application case 41 is prevented from being attached to the viewing window 64 of the lighting lamp 60.

And, when the operator manipulates the input means 71 to turn on the lighting lamp 60, the control means 70 controls the paint supply means 46 so that no more paint is sprayed, and at the same time, the lift driving means By stopping 44 so that the lifting bar 51 is stopped, and as shown in Figs. 11 and 12, by controlling the rotation driving means 61 to rotate the lighting lamp 60 forward, the lighting lamp 60 Make the wall brightly illuminated by the light irradiated by ).

Therefore, the operator can visually check the state in which the hybrid flame retardant paint is applied to the wall surface inside the coating case 41 through the observation window 41a.

According to such a hybrid flame retardant paint construction method, by using the factory value at the time of the hybrid flame retardant paint, the hybrid flame retardant paint can be automatically applied to the vertical wall surface 1, thereby shortening the construction time as well as flame retardant. There is an advantage that the furnace can be uniformly applied to the vertical wall surface.

In particular, since the operation of applying the hybrid flame-retardant paint is carried out inside the application case 41, there is an advantage of preventing the hybrid flame-retardant paint from scattering around and contaminating the surroundings.

As described above, in the present specification and drawings, a preferred embodiment of the present invention has been disclosed, and although specific terms are used, this is only used in a general meaning to easily explain the technical content of the present invention and to aid understanding of the invention. , It is not intended to limit the scope of the present invention. In addition to the embodiments disclosed herein, it is apparent to those of ordinary skill in the art that other modified examples based on the technical idea of the present invention can be implemented.

10. Bogie 20. Carriage
40. Application unit 50. Internal cleaning unit
60. Lighting

Claims (4)

Urethane emulsion resin, ethylene vinyl acetate emulsion resin, acrylic silicon emulsion resin, acrylic emulsion resin, vinyl acrylic resin, potassium In addition to the aqueous resin consisting of at least one or a mixture of two or more selected from among silicate inorganic resins (Potassium silicate), the aqueous resin mixture is a weight ratio of 10 to 12: 5 using aqueous resins, PLA resins, cellulose nanofibers, and carbon fibers. To 3: 5 to 3: After being prepared in a gel form having a viscosity by stirring in a content of 1 to 2, ethylbenzene, xylene, toluene, inorganic flame retardants, Formed by stirring at least one or two or more selected from the CNT nanocomposite adhesive, on the other hand, the aqueous resin mixture has a heat of fusion between 23.2 kJ / g to 25.7 kJ / g, using the aqueous resin mixture hybrid When coated with flame-retardant paint, 0.2mm thickness does not dissolve for more than 30 minutes when heated to 245°C, and tear strength increases by 1.3 to 1.5 times or higher than that of using water-based resin alone, and tensile strength is 2.3 to 2.5. Increase by more than a fold,
Cellulose nanofibers use foam-type cellulose nanofiber-based raw materials, but the foam-type cellulose nanofiber-based raw materials are extruded using an extrusion device to form an extruded melt, which is dissolved at a temperature of 225 to 235 °C, and then extruded in a molten state. When passing through the melt, a film-type foam-type cellulose nanofiber-based raw material sheet is formed in the T-die method, and the film-type foam-type cellulose nanofiber-based raw material sheet is cooled with a cooling device attached to the outlet of the die, and during cooling. After cooling the film-type foam-type cellulose nanofiber-based raw material sheet, it is transferred to a guide roller, cooled by a guide roller corresponding to room temperature in a temperature setting range, and a T-die by a die for the extruded melt. In consideration of the temperature difference immediately after creation of the film-type foam-type cellulose nanofiber-based raw material sheet using the method, it is set in the range of 12℃ to 15.7℃, and the film-type foam-type cellulose nanofiber-based raw material sheet cooled by a guide roller is It is guided to a stretching device, and is generated by providing a thermal stabilization process at room temperature according to the setting of the overall length of the guide roller while transferring the film-type foamed type cellulose nanofiber-based raw material sheet to the stretching device by the guide roller. Hybrid flame-retardant paint manufacturing method, characterized in that the use of.
A hybrid flame-retardant paint construction method in which the hybrid flame-retardant paint manufactured by the manufacturing method of claim 1 is applied to the vertical wall surface (1) with at least one of brush coating, roller coating, and spray coating,
A washing step of washing the vertical wall surface 1 by spraying water on the vertical wall surface 1;
A drying step of heating and drying the washed vertical wall surface (1) and checking the dryness of the vertical wall surface (1); And
A coating film forming step of forming a coating film by applying a hybrid flame-retardant paint to the dried vertical wall surface (1); Hybrid flame retardant coating construction method comprising a.
As a hybrid flame retardant paint construction method in which the hybrid flame retardant paint manufactured by the manufacturing method of claim 1 is applied to the vertical wall surface (1),
A washing step of washing the vertical wall surface (1) by spraying water on the vertical wall surface (1),
A drying step of heating and drying the washed vertical wall surface (1) and checking the dryness of the vertical wall surface (1);
Including a coating film forming step of forming a coating film by applying a hybrid flame retardant paint to the dried vertical wall surface (1),
The coating film formation step is carried out using factory values for hybrid flame retardant paint,
The factory value for hybrid flame retardant paint,
The wheel 11 is provided at the lower side, and a bogie 10 configured to move in the lateral direction along the vertical wall surface 1 in a state close to the vertical wall surface 1, and
A transport platform 20 that is slidably coupled to the cart 10 and whose position in the front and rear direction is adjusted by the position control means 21,
An application unit 40 provided so as to extend in the vertical direction on the transfer table 20 to apply a hybrid flame retardant paint to the vertical wall surface 1,
Including a control means (70) for controlling the operation of the coating unit (40),
The application unit 40
It extends in the vertical direction and is composed of an open cylindrical shape with the front facing the vertical wall surface (1), and is provided on the transfer platform 20 so as to be located in the lateral direction of the washing case 31, and when the transfer platform 20 is transferred to the front An application case 41 positioned so that the front circumference portion is spaced apart from the vertical wall surface 1,
An elevating guide 42 provided to extend in the vertical direction inside the application case 41,
A lift platform 43 that is coupled to the lift guide 42 so as to be liftable and lifted by the lift driving means 44,
A paint spraying nozzle 45 provided on the lifting platform 43 to face the front, and a paint supplying means 46 provided in the paint spraying nozzle 45 to supply a hybrid flame retardant paint to the paint spraying nozzle 45,
Hybrid flame-retardant paint construction method comprising an exhaust pump 47 connected to one side of the coating case 41 to discharge the air inside the coating case 41 to the outside.
The method of claim 3,
An observation window 41a is formed on the circumferential surface of the application case 41,
The interior of the application case 41 is provided with an internal washing means 50 for cleaning the inner surface of the observation window (41a),
The internal washing means 50,
An elevating bar 51 provided to be elevating in the interior of the application case 41,
An elevating means 52 connected to the elevating bar 51 to elevate the elevating bar 51,
A wiper member 53 provided in the lifting bar 51 and slid toward the inner surface of the observation window 41a by the actuator 53a to selectively adhere to the inner surface of the observation window 41a,
An injection pipe 54 provided on the upper surface of the wiper member 53 and spraying the oil supplied by the oil supply means 54a to the inner surface of the observation window 41a;
It is provided inside the application case 41 so as to be located under the observation window 41a, and includes a collection container 55 for collecting the removed oil by being scraped down by the wiper member 53,
A lighting lamp 60 which is rotatably coupled to the lifting platform 43 so that the viewing window 64 through which the light passes by the rotation driving means 61 is rotated toward the front or the rear,
It is provided at the rear of the lighting lamp 60, and when the lighting lamp 60 is rotated toward the rear, it is in close contact with the outer surface of the viewing window 64 of the lighting lamp 60 to cover the viewing window 64, further comprising a shielding member 65,
The control means 70 is provided with an input means 71 adapted to be operated by an operator to input a control command, and the control means 70 is an internal washing means 50 when the paint supply means 46 is operated. Is operated at a certain period so that the inner surface of the observation window 41a is kept clean, and at the same time, the lighting 60 is turned off and rotated toward the rear, and the operator manipulates the input means 71 to issue a control command. Hybrid flame retardant, characterized in that the operation of the paint supply means 46 is stopped and the rotation driving means 61 is controlled to rotate the lamp 60 to face the front, and then the lamp 60 is turned on. Paint construction method.

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