KR102128520B1 - Non-combustible spray coating material and manufacturing method of the same - Google Patents

Abstract

The present invention is a non-combustible spray coating material composed of a mixture of a fine mineral powder, a non-combustible mixture, a non-combustible resin, and a natural binder obtained by crushing and expanding an expandable mineral composed of a mixture of pearlite, vermiculite, and sepiolite,
To prepare a fine mineral powder using pearlite, vermiculite, and sepiolite; To prepare porous Macsumsuk granules; Preparing a non-flammable mixture using the porous macsumsuk granules; LDPE/EVA resin, magnesium hydroxide, dispersant, fumed silica of a flame retardant aid, and an antioxidant are mixed to prepare a non-flammable resin; To prepare a natural binder by mixing a mixture of rosin, glue and fish, and an antibacterial extract; The present invention relates to a method for producing a non-flammable spray coating material by mixing the fine powder intumescent mineral mixture, a non-combustible mixture, a non-combustible resin, and a natural binder to prepare a non-flammable spray coating material.

Description

Non-combustible spray coating material and its manufacturing method {NON-COMBUSTIBLE SPRAY COATING MATERIAL AND MANUFACTURING METHOD OF THE SAME}

The present invention is a non-combustible spray coating material composed of a mixture of a fine mineral powder, a non-combustible mixture, a non-combustible resin, and a natural binder obtained by crushing and expanding an expandable mineral composed of a mixture of pearlite, vermiculite, and sepiolite,

To prepare a fine mineral powder using pearlite, vermiculite, and sepiolite; To prepare porous Macsumsuk granules; Preparing a non-flammable mixture using the porous macsumsuk granules; LDPE/EVA resin, magnesium hydroxide, dispersant, fumed silica of a flame retardant aid, and an antioxidant are mixed to prepare a non-flammable resin; To prepare a natural binder by mixing a mixture of rosin, glue and fish, and an antibacterial extract; The present invention relates to a method for producing a non-flammable spray coating material by mixing the fine powder intumescent mineral mixture, a non-combustible mixture, a non-combustible resin, and a natural binder to prepare a non-flammable spray coating material.

Sprayed, Shotcrete refers to a method in which paste, mortar, and concrete that are not solidified are sprayed on the construction surface in detail and uniformly using compressed air without using a formwork.

In the dry method, cement and air-dried aggregate are well mixed (dry mixed), and then a quick setting agent is added to the injection device, which is compressed through a hose with compressed air and sprayed from the nozzle. At this time, the mixed water is mixed with the aggregate in the nozzle and sprayed onto the construction surface at high speed.

The wet method is roughly classified into the air pressure feed method and the screw pump pressure feed method. After adding water to mix all the materials well, supply it to the spraying device, and add air from the nozzle to increase the spraying speed. Particularly, the air-pressure type wet method is a method in which wet-mixed lumps or concrete are compressed with compressed air, and a quick setting agent is applied from the nozzle and sprayed. There are a wet chamber type and a screw type.

In connection with the present invention, Republic of Korea Patent Registration 10-1686447 (registration date 2015.12.08)'Non-combustible spray mortar insulating filler, non-combustible board and sandwich panel using the same'; Republic of Korea Patent Registration 10-1766316 (registration date 2017.08.02)'Non-combustible sprayable mortar with excellent adhesion to combustible organic foam insulation and its manufacturing method'; Republic of Korea Patent Registration 10-1876205 (registration date 2018.07.03)'Non-combustible spray mortar insulation material containing pine needle powder, construction boards and sandwich panels using the same' has been disclosed.

Korean Patent Registration 10-1686447 (Registration date 2015.12.08) Republic of Korea Patent Registration 10-1766316 (Registration date 2017.08.02) Korean Patent Registration 10-1876205 (Registration Date 2018.07.03)

The present invention is composed of a mixture of fine mineral powder, non-combustible mixture, non-combustible resin and natural binder by pulverizing and expanding an expandable mineral composed of a mixture of perlite, vermiculite, and sepiolite. It is an object of the invention to provide a non-flammable spray coating material having excellent safety in use according to the use of a material, and to provide a method for manufacturing the same.

To achieve the above object,

The present invention is a mixture of 1.0 to 50.0 wt% of pearlite, 1.0 to 50.0 wt% of vermiculite, and 1.0 to 50.0 wt% of sepiolite to prepare a fine powder mixture having an average particle size of 200 to 1000 mesh at 100.0 wt% at 800 ℃ to 1,200 25.0 ~ 50.0 wt% of the fine mineral powder (A) expanded by heating at °C;

10.0 to 50.0 wt% of purified water, 10.0 to 30.0 wt% of magnesium hydroxide, 10.0 to 30.0 wt% of porous macsumsuk granules, 10.0 to 30.0 wt% of sodium silicate, and 10.0 to 30.0 wt% of urea resin are mixed to form 100.0 wt% Non-combustible mixture (B) 40.0 to 70.0 wt%;

LDPE/EVA resin 50.0 ~ 70.0 wt%, magnesium hydroxide 25.0 ~ 45.0 wt%, dispersant 0.01 ~ 2.0 wt%, flame retardant fumed silica 0.01 ~ 2.0 wt%, antioxidant 0.01 ~ 2.0 2.0 to 5.0 wt% of a non-combustible resin (C) composed of 100.0 wt% by mixing wt%;

Rosin (d1) 30.0 ~ 68.0 wt% and,

A mixture (d2) 30.0 ~ 68.0 wt% of a mixture of glue and fish glue in a 1:1 weight ratio,

The dried and shredded cypress leaves are immersed in acetone, but the cypress leaves and 70% acetone are mixed in a weight ratio of 1: 10 to 30 times, and extracted twice at room temperature for 4 to 6 days, and the extract is used with filter paper. Cypress tree extract prepared as a powder by filtering with (filter paper) and drying under reduced pressure,

Dried fine mugwort was immersed in ethanol, but extracted twice for 1 to 3 days at room temperature with a weight ratio of 1: 8 to 12 of wormwood and 95% ethanol, and the extract was filtered with filter paper. , Wormwood extract prepared as a powder by drying under reduced pressure,

Mint and 80% ethanol were mixed in a ratio of 1: 15 to 30 and extracted under reflux for 2 to 5 hours, and the extract was filtered with filter paper and dried under reduced pressure to prepare a powdered peppermint extract. A natural binder composed of 100.0 wt% by stirring and mixing (d1+d2+d3) 0.1 to 2.0 wt% of the antibacterial extract (d3) prepared by mixing at a weight ratio of 5:2 for 20 to 50 minutes at 2,000 to 3,000 rpm ( D) 2.0 ~ 5.0 wt%; It provides a non-flammable spray paint composition composed of a mixture (A + B + C + D).

In addition, as a manufacturing method of the non-flammable spray coating,

An expandable mineral formed by mixing 1.0 to 50.0 wt% of perlite, 1.0 to 50.0 wt% of vermiculite, and 1.0 to 50.0 wt% of sepiolite was pulverized into 200 to 1000 mesh, and then heated and expanded at 800 to 1,200°C. The step of preparing a fine mineral powder (S10),

The raw Macsumsuk stone is pulverized to have an average particle diameter of 30 to 40 µm, and mixed so that the weight ratio of water and solid powder is 1:2 to prepare a slurry of Macsumsuk powder, and calcium carbonate (CaCO ₃ ) or sodium carbonate in the slurry of Macsumsuk powder (Na ₂ CO ₃ ) or a blowing agent powder selected from the group consisting of a mixture thereof is mixed in an amount of 0.01 to 0.1 wt% based on the solid content of the slurry of the macsumsuk powder to form a mixture, and the mixture is used in a granulator. After forming the Macsumsuk granules by molding into granules having an average particle diameter of 80 to 120 μm, the Macsumsuk granules are calcined at a temperature range of 1,000 to 1,200° C. to prepare porous Macsumsuk granules (S20),

A step of mixing the porous macsumsuk granules 10.0 to 30.0 wt%, purified water 10.0 to 50.0 wt%, magnesium hydroxide 10.0 to 30.0 wt%, sodium silicate 10.0 to 30.0 wt%, and urea resin 10.0 to 30.0 wt% to prepare a non-combustible mixture (S30) Wow,

LDPE (low density polyethylene) 40.0 ~ 60.0 wt% and EVA (polyethyleneco-vinylacetate) 40.0 ~ 60.0 wt% were added to the melting machine, and then melt-mixed at 120 ~ 180 for 3 ~ 7 minutes to form LDPE/EVA resin,

To the melter, magnesium hydroxide, dispersant, fumed silica as a flame retardant aid, and antioxidant are added, but LDPE/EVA resin 50.0 to 70.0 wt%, magnesium hydroxide 25.0 to 45.0 wt%, and dispersant 0.01 to 2.0 wt. %, fumed silica of a flame retardant auxiliary (0.01 to 2.0 wt%), and an antioxidant (0.01 to 2.0 wt%) were added to achieve a blending ratio of 5 to 70 rpm at a temperature of 120 to 140 °C. It provides a method for producing a non-flammable spray paint comprising the step (S40) of preparing a non-flammable resin by stirring for 15 minutes and then filtering.

The non-flammable spraying material according to the present invention has high non-combustible properties, and is easy to install and has excellent adhesion. In addition, it has the advantage of excellent antibacterial properties and safety in use according to the use of natural substances.

1 is a manufacturing process diagram of a non-flammable spray paint according to the present invention.

Hereinafter, a detailed description of the non-flammable spray coating material and a method of manufacturing the same according to the present invention will be described.

The non-flammable spray coating material according to the present invention is a fine powder mixture having an average particle size of 200 to 1000 mesh composed of 100.0 wt% by mixing 1.0 to 50.0 wt% of pearlite, 1.0 to 50.0 wt% of vermiculite, and 1.0 to 50.0 wt% of sepiolite 25.0 to 50.0 wt% of the fine mineral powder (A) expanded by heating at 800° C. to 1,200° C.;

10.0 to 50.0 wt% of purified water, 10.0 to 30.0 wt% of magnesium hydroxide, 10.0 to 30.0 wt% of porous macsumsuk granules, 10.0 to 30.0 wt% of sodium silicate, and 10.0 to 30.0 wt% of urea resin are mixed to form 100.0 wt% Non-combustible mixture (B) 40.0 to 70.0 wt%;

LDPE/EVA resin 50.0 ~ 70.0 wt%, magnesium hydroxide 25.0 ~ 45.0 wt%, dispersant 0.01 ~ 2.0 wt%, flame retardant fumed silica 0.01 ~ 2.0 wt%, antioxidant 0.01 ~ 2.0 2.0 to 5.0 wt% of a non-combustible resin (C) composed of 100.0 wt% by mixing wt%;

Rosin (d1) 30.0 ~ 68.0 wt% and,

A mixture (d2) 30.0 ~ 68.0 wt% of a mixture of glue and fish glue in a 1:1 weight ratio,

The dried and shredded cypress leaves are immersed in acetone, but the cypress leaves and 70% acetone are mixed in a weight ratio of 1: 10 to 30 times, and extracted twice at room temperature for 4 to 6 days, and the extract is used with filter paper. Cypress tree extract prepared as a powder by filtering with (filter paper) and drying under reduced pressure,

Dried fine mugwort was immersed in ethanol, but extracted twice for 1 to 3 days at room temperature with a weight ratio of 1: 8 to 12 of wormwood and 95% ethanol, and the extract was filtered with filter paper. , Wormwood extract prepared as a powder by drying under reduced pressure,

Mint and 80% ethanol were mixed in a ratio of 1: 15 to 30 and extracted under reflux for 2 to 5 hours, and the extract was filtered with filter paper and dried under reduced pressure to prepare a powdered peppermint extract. A natural binder composed of 100.0 wt% by stirring and mixing (d1+d2+d3) 0.1 to 2.0 wt% of the antibacterial extract (d3) prepared by mixing at a weight ratio of 5:2 for 20 to 50 minutes at 2,000 to 3,000 rpm ( D) 2.0 ~ 5.0 wt%; It is composed of a mixture (A+B+C+D).

The fine mineral powder has non-flammability and high thermal insulation properties in terms of material properties. If the amount of such fine mineral powder is less than 25.0 wt%, the improvement of non-flammable and thermal insulation function due to the fine mineral powder may be limited, and if it exceeds 50.0 wt%, the functionality as a spray paint may be poor and construction may be difficult. The amount of the fine mineral powder is preferably limited within the range of 25.0 to 50.0 wt% based on the total weight of the non-flammable spray coating material.

The non-flammable mixture (B) is a mixture having non-flammability of spray paint, purified water 10.0 to 50.0 wt%, magnesium hydroxide 10.0 to 30.0 wt%, porous macsumsuk granules 10.0 to 30.0 wt%, sodium silicate 10.0 to 30.0 wt% , It is composed of 10.0 ~ 30.0 wt% of urea resin.

The magnesium hydroxide, as an inorganic flame retardant, has a high thermal decomposition temperature and has a flame retardant effect by a dehydration reaction. Compared to the low dehydration initiation temperature, which is a disadvantage of aluminum hydroxide, magnesium hydroxide has a stable decomposition initiation temperature of 250 ℃ or higher. The combustion gas suppression and flame retardant mechanisms of magnesium hydroxide are as follows.

Mg(OH) ₂ ---> MgO + H ₂ O-187 cal/g (340~430℃)

If the amount of magnesium hydroxide is less than 10.0 wt%, there is a risk of deterioration of the flame retardant property, and if it exceeds 30.0 wt%, the degree of improvement of the flame retardant property is insignificant and therefore insignificant, the amount of magnesium hydroxide used is the total weight of the non-combustible mixture It is preferable to limit it within the range of 10.0 to 30.0 wt% with respect to.

The porous Macsumsuk granules are pulverized to have an average particle diameter of 30 to 40 µm of Macsumsuk raw stone, and mixed so that the weight ratio of water and solid powder is 1:2 to prepare a slurry of Macsumsuk powder, and calcium carbonate in the slurry of Macsumsuk powder (CaCO ₃ ) or sodium carbonate (Na ₂ CO ₃ ) or a foaming agent powder selected from the group consisting of a mixture thereof is mixed in an amount of 0.01 to 0.1 wt% based on the solid content of the slurry of the macsumsuk powder to obtain a granulated mixture And the granulation compound is molded into granules having an average particle diameter within the range of 80 to 120 µm using a known granulator to prepare Macsumsuk granules, and then the Macsumsuk granules are calcined at a temperature range of 1,000 to 1,200°C. Use the prepared one.

The porous macsumsuk granules are a material harmless to the human body, and have high flame retardant properties and an additional function of radiating far-infrared rays and anions.When the amount is less than 10.0 wt%, it is difficult to expect improvement of the flame retardant function by macsumsuk granules, If it exceeds 30.0 wt%, it is uneconomical to increase the unit price due to use more than necessary, so the amount of the porous macsumsuk granules is limited to within the range of 10.0 to 30.0 wt% based on the total weight of the non-combustible mixture. desirable.

The sodium silicate has a flame retardancy and cohesion enhancing function, and when the amount is less than 10.0 wt%, it is difficult to expect the flame-retardant property improvement and cohesion enhancing effect, and when it exceeds 30.0 wt%, it is meaningless to use more than necessary, The amount of sodium silicate is preferably limited to within the range of 10.0 to 30.0 wt% based on the total weight of the non-flammable mixture.

The urea resin is used to improve heat resistance, and when the amount of the urea resin is less than 10.0 wt%, it is difficult to expect a heat resistance improvement effect, and when it exceeds 30.0 wt%, it is uneconomical to use more than necessary. The amount used is preferably limited to within the range of 10.0 to 30.0 wt% based on the total weight of the non-flammable mixture.

Specific mixing examples of the non-flammable mixture (B) are shown in Table 1 below.

Formulation example 1 Formulation example 2 Formulation example 3 Formulation Example 4 Formulation Example 5 Purified water 15.0 wt%
20.0 wt% 25.0 wt% 25.0 wt% 32.0 wt% Hydration
magnesium 25.0 wt% 20.0 wt% 12.0 wt% 20.0 wt% 10.0 wt% Macsumstone granules 30.0 wt% 30.0 wt% 33.0 wt% 25.0 wt% 28.0 wt% Sodium silicate 20.0 wt% 20.0 wt% 20.0 wt% 20.0 wt% 20.0 wt% Urea resin 10.0 wt% 10.0 wt% 10.0 wt% 10.0 wt% 10.0 wt% Sum 100.0 wt% 100.0 wt% 100.0 wt% 100.0 wt% 100.0 wt%

The non-combustible resin is a resin having non-combustible properties, LDPE/EVA resin 50.0 to 70.0 wt%, magnesium hydroxide 25.0 to 45.0 wt%, dispersant 0.01 to 2.0 wt%, and fumed silica 0.01 of a flame retardant aid. It is composed of a mixture of ~ 2.0 wt% and 0.01 ~ 2.0 wt% of an antioxidant.

The LDPE/EVA resin is formulated by adding 40.0 to 60.0 wt% of low density polyethylene (LDPE) and 40.0 to 60.0 wt% of polyethyleneco-vinylacetate (EVA) to a melting vessel and then melt-mixing at 120 to 180 for 3 to 7 minutes. Use it.

If the amount of LDPE/EVA resin is less than 40.0 wt%, the moldability is deteriorated, and if it exceeds 70.0 wt%, the content of other components is relatively reduced, so there is a concern that physical and chemical properties such as durability and flame retardancy are deteriorated. The LDPE/EVA resin is preferably used in a range of 50.0 to 70.0 wt% based on the total weight of the non-flammable resin.

As described above, the magnesium hydroxide is used as an inorganic flame retardant, and when the amount is less than 25.0 wt%, it is difficult to expect improvement of flame retardant properties, and when it exceeds 45.0 wt%, it is difficult to optimize the overall composition of the composition. As such, the amount of magnesium hydroxide is preferably limited to within the range of 25.0 to 45.0 wt% based on the total weight of the non-combustible resin.

The dispersant may include an anionic surfactant with monoalkyl sulfate, alkyl polyoxyethylene sulfate, alkyl benzene sulfonate or monoalkyl phosphate; Cationic surfactants of monoalkyltrimethylammonium salts, dialkyldimethylammonium salts or alkylbenzylmethylammonium salts, amphoteric surfactants of alkylsulfobetaine or alkylcarboxybetaine; Or a nonionic surfactant of polyoxyethylene alkyl ether, fatty acid sorbitan ester, fatty acid diethanolamine, or alkyl monoglyceryl ether is used.

When the amount of the dispersant is less than 0.01 wt%, the dispersibility decreases, and when it exceeds 2.0 wt%, there is no change in the effect on the dispersibility, so the amount of the dispersant is 0.01 to about the total weight of the non-flammable resin. It is preferable to limit it within the range of 2.0 wt%.

The fumed silica of the flame retardant auxiliary is used as an auxiliary and serves to further improve the flame retardant properties.If the amount is less than 0.01 wt%, it is difficult to exhibit the functionality of improving flame retardancy, and 2.0 wt% is If it exceeds, it is meaningless to use more than necessary, and therefore, the amount of the flame retardant aid is preferably limited to within the range of 0.01 to 2.0 wt% based on the total weight of the non-combustible resin.

The antioxidant is used to inhibit plastic from reacting with air to easily cause an oxidation reaction, and is selected from phenol-based, amine-based, Phosphite-based, or Thioester-based.

More specifically, Tris(2.4-di-t-butylphenyl)-phosphite, Bis(2.4-di-t-butyl), 2.2-Methylenebis(4-methyl-6-t-butylphenol), Pentaerythritol diphosphite, Octadecyl 3, 5-di-t-butyl-4-hydroxhydrocinnamate, 2.6-di-t-Butyl-4-methylphenol, Tetrakis[methylene-3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate]methane or Alkylester Use selected phosphite.

When the amount of the antioxidant is less than 0.01 wt%, it is difficult to properly exhibit the antioxidant function, so the amount of the antioxidant is preferably limited to within the range of 0.01 to 2.0 wt% based on the total weight of the non-combustible resin.

Specific mixing examples of the non-flammable resin (C) are shown in Table 2 below.

Formulation example 1 Formulation example 2 Formulation example 3 Formulation Example 4 Formulation Example 5 LDPE/EVA resin 52.0 wt% 58.5 wt% 60.0 wt% 65.0 wt% 70.0 wt% Hydration
magnesium 45.0 wt% 40.0 wt% 38.5 wt% 33.5 wt% 29.4 wt% Dialkyldimethylammonium salt 1.0 wt% 0.5 wt% 0.5 wt% 0.5 wt% 0.2 wt% Fumed silica 1.0 wt% 0.5 wt% 0.5 wt% 0.5 wt% 0.2 wt% Tris(2.4-di-t-butylphenyl)-phosphite 1.0 wt% 0.5 wt% 0.5 wt% 0.5 wt% 0.2 wt% Sum 100.0 wt% 100.0 wt% 100.0 wt% 100.0 wt% 100.0 wt%

The natural binder is 30.0 ~ 68.0 wt% of rosin (d1),

A mixture (d2) 30.0 ~ 68.0 wt% of a mixture of glue and fish glue in a 1:1 weight ratio,

The dried and shredded cypress leaves are immersed in acetone, but the cypress leaves and 70% acetone are mixed in a weight ratio of 1: 10 to 30 times, and extracted twice at room temperature for 4 to 6 days, and the extract is used with filter paper. Cypress tree extract prepared as a powder by filtering with (filter paper) and drying under reduced pressure,

Dried fine mugwort was immersed in ethanol, but extracted twice for 1 to 3 days at room temperature with a weight ratio of 1: 8 to 12 of wormwood and 95% ethanol, and the extract was filtered with filter paper. , Wormwood extract prepared as a powder by drying under reduced pressure,

Mint and 80% ethanol were mixed in a ratio of 1: 15 to 30 and extracted under reflux for 2 to 5 hours, and the extract was filtered with filter paper and dried under reduced pressure to prepare a powdered peppermint extract. It is formulated by mixing (d1+d2+d3) 0.1 to 2.0 wt% of the antibacterial extract (d3) prepared by mixing at a weight ratio of 5:2 and stirring at 2,000 to 3,000 rpm for 20 to 50 minutes.

Specific mixing examples of the natural binder (D) are shown in Table 3 below.

Formulation example 1 Formulation example 2 Formulation example 3 Mixing example Mixing Example 5 Rosin 55.0 wt% 46.0 wt% 47.0 wt% 48.0 wt% 49.0 wt% Glue / language school
mixture 44.5 wt% 53.0 wt% 51.5 wt% 51.2 wt% 50.8 wt% Antibacterial extract 0.5 wt% 1.0 wt% 1.5 wt% 0.8 wt% 0.2 wt% Sum 100.0 wt% 100.0 wt% 100.0 wt% 100.0 wt% 100.0 wt%

Hereinafter, a method of manufacturing the non-flammable spray coating material presented above will be described.

As shown in Figure 1, the method for producing a non-flammable spray paint according to the present invention is an expandable mineral composed of a mixture of 1.0 to 50.0 wt% perlite, 1.0 to 50.0 wt% vermiculite, and 1.0 to 50.0 wt% sepiolite. The step (S10) of preparing a fine mineral powder by pulverizing into 200 to 1000 mesh and heating and expanding at 800 to 1,200 °C, and

The raw Macsumsuk stone is pulverized to have an average particle diameter of 30 to 40 µm, and mixed so that the weight ratio of water and solid powder is 1:2 to prepare a slurry of Macsumsuk powder, and calcium carbonate (CaCO ₃ ) or sodium carbonate in the slurry of Macsumsuk powder (Na ₂ CO ₃ ) or a blowing agent powder selected from the group consisting of a mixture thereof is mixed in an amount of 0.01 to 0.1 wt% based on the solid content of the slurry of the macsumsuk powder to form a mixture, and the mixture is used in a granulator. After forming the Macsumsuk granules by molding into granules having an average particle diameter of 80 to 120 μm, the Macsumsuk granules are calcined at a temperature range of 1,000 to 1,200° C. to prepare porous Macsumsuk granules (S20),

A step of mixing the porous macsumsuk granules 10.0 to 30.0 wt%, purified water 10.0 to 50.0 wt%, magnesium hydroxide 10.0 to 30.0 wt%, sodium silicate 10.0 to 30.0 wt%, and urea resin 10.0 to 30.0 wt% to prepare a non-combustible mixture (S30) Wow,

LDPE (low density polyethylene) 40.0 ~ 60.0 wt% and EVA (polyethyleneco-vinylacetate) 40.0 ~ 60.0 wt% were added to the melting machine, and then melt-mixed at 120 ~ 180 for 3 ~ 7 minutes to form LDPE/EVA resin,

To the melter, magnesium hydroxide, dispersant, fumed silica as a flame retardant aid, and antioxidant are added, but LDPE/EVA resin 50.0 to 70.0 wt%, magnesium hydroxide 25.0 to 45.0 wt%, and dispersant 0.01 to 2.0 wt. %, fumed silica of a flame retardant auxiliary (0.01 to 2.0 wt%), and an antioxidant (0.01 to 2.0 wt%) were added to achieve a blending ratio of 5 to 70 rpm at a temperature of 120 to 140 °C. Stirring for 15 minutes to prepare the composition and then filtering to prepare a non-combustible resin (S40),

30.0 ~ 68.0 wt% of rosin, 30.0 ~ 68.0 wt% of a mixture of 1: 1 weight ratio of glue and fish, and 0.1 ~ 0.1 ~ of an antibacterial extract composed of cypress extract, wormwood extract, and mint extract in a 3:5:2 weight ratio A step (S50) of preparing a natural binder by stirring 2.0 wt% at 2,000 to 3,000 rpm for 20 to 50 minutes,

The mineral fine powder (a) 25.0 ~ 50.0 wt%; Incombustible mixture (b) 40.0 to 70.0 wt%; 2.0 to 5.0 wt% of non-combustible resin (c); A natural binder (d) 2.0 ~ 5.0 wt%; comprises a step (S60) of preparing a non-flammable spray paint by mixing.

Hereinafter, the technical configuration for each step will be described in detail.

<Mineral fine powder manufacturing step (S10)>

This step (S10) is a step of preparing a fine mineral powder,

A step of expanding a fine powder mixture with an average particle size of 200 to 1000 mesh composed by mixing 1.0 to 50.0 wt% of pearlite, 1.0 to 50.0 wt% of vermiculite, and 1.0 to 50.0 wt% of sepiolite by heating to 800 ℃ to 1,200 ℃ to be.

More specifically,

An expandable mineral mixture composed of a mixture of 35.0 wt% perlite, 35.0 wt% vermiculite, and 30.0 wt% sepiolite is pulverized to an average particle size of 300 mesh, and then heated and expanded at 800°C to 1,200°C. .

<Porous Macsumsuk granules manufacturing step (S20)>

This step (S20) is a step that proceeds separately from the previous step (S10),

The raw Macsumsuk stone is pulverized to have an average particle diameter of 30 to 40 µm, and mixed so that the weight ratio of water and solid powder is 1:2 to prepare a slurry of Macsumsuk powder, and calcium carbonate (CaCO ₃ ) or sodium carbonate in the slurry of Macsumsuk powder (Na ₂ CO ₃ ) or a blowing agent powder selected from the group consisting of a mixture thereof is mixed in an amount of 0.01 to 0.1 wt% based on the solid content of the slurry of the macsumsuk powder to form a mixture, and the mixture is used in a granulator. This is a step of preparing Macsumsuk granules by molding them into granules having an average particle diameter of 80 to 120 µm, and then calcining the Macsumsuk granules at a temperature in the range of 1,000 to 1,200°C to prepare porous Macsumsuk granules.

More specifically, Macsumsuk granules are prepared according to the following procedure.

1. Crush the raw Macsumsuk to have an average particle diameter of 40 µm.

2. Prepare Macsumsuk powder slurry by mixing so that the weight ratio of water and solid powder is 1:2.

3. Calcium carbonate (CaCO ₃ ) is added to the Macsumsuk powder slurry, but is added in an amount of 0.1 wt% based on the solid content of the Macsumsuk powder slurry to form a mixture.

4. The mixture is molded into granules having an average particle diameter of 100 µm using a granulator to prepare Macsumsuk granules.

5. The Macsumsuk granules are calcined in a temperature range of 1,200°C to prepare porous Macsumsuk granules.

<Incombustible mixture manufacturing step (S30)>

This step (S30) consists of 10.0 to 30.0 wt% of the porous Macsumsuk granules prepared in the previous step (S20), 10.0 to 50.0 wt% of purified water, 10.0 to 30.0 wt% of magnesium hydroxide, 10.0 to 30.0 wt% of sodium silicate, and urea resin. This is a step of preparing a non-flammable mixture by mixing 10.0 to 30.0 wt%. At this time, the specific mixing ratio is as shown in Table 1 above.

<Incombustible resin manufacturing step (S40)>

In this step (S40), 40.0 to 60.0 wt% of LDPE (low density polyethylene) and 40.0 to 60.0 wt% of EVA (polyethyleneco-vinylacetate) are added to the melter, and then melt-mixed at 120 to 180 for 3 to 7 minutes. To make EVA resin,

To the melter, magnesium hydroxide, dispersant, fumed silica as a flame retardant aid, and antioxidant are added, but LDPE/EVA resin 50.0 to 70.0 wt%, magnesium hydroxide 25.0 to 45.0 wt%, and dispersant 0.01 to 2.0 wt. %, fumed silica of a flame retardant auxiliary (0.01 to 2.0 wt%), and an antioxidant (0.01 to 2.0 wt%) were added to achieve a blending ratio of 5 to 70 rpm at a temperature of 120 to 140 °C. The composition is stirred for 15 minutes and then filtered to prepare a non-flammable resin. At this time, the specific mixing ratio is as shown in Table 2 above.

The dispersant may include an anionic surfactant with monoalkyl sulfate, alkyl polyoxyethylene sulfate, alkyl benzene sulfonate or monoalkyl phosphate; Cationic surfactants of monoalkyltrimethylammonium salts, dialkyldimethylammonium salts or alkylbenzylmethylammonium salts, amphoteric surfactants of alkylsulfobetaine or alkylcarboxybetaine; Or a nonionic surfactant of polyoxyethylene alkyl ether, fatty acid sorbitan ester, fatty acid diethanolamine, or alkyl monoglyceryl ether is used.

The antioxidants are Tris(2.4-di-t-butylphenyl)-phosphite, Bis(2.4-di-t-butyl), 2.2-Methylenebis(4-methyl-6-t-butylphenol), Pentaerythritol diphosphite, Octadecyl 3,5 -di-t-butyl-4-hydroxhydrocinnamate, 2.6-di-t-Butyl-4-methylphenol, Tetrakis[methylene-3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate]methane or Alkylester phosphite Use the one selected from.

<Natural binder manufacturing step (S50)>

This step (S50) is a mixture of 30.0 to 68.0 wt% of rosin and 30.0 to 68.0 wt% of a mixture of glue and fish at a weight ratio of 1:1, and cypress extract, mugwort extract, and peppermint extract at a ratio of 3:5 to 2 by weight. This is a step of preparing a natural binder by stirring the prepared antibacterial extract 0.1 to 2.0 wt% at 2,000 to 3,000 rpm for 20 to 50 minutes.

More specifically, as the blending composition according to blending example 2 of Table 3, 46.0 wt% of rosin, 53.0 wt% of a mixture of glue and fish glue in a 1:1 weight ratio, and cypress tree extract, mugwort extract, and peppermint extract A natural binder was prepared by stirring 1.0 wt% of the antimicrobial extract prepared by mixing at a weight ratio of 3:5:2 at 2,500 rpm for 30 minutes.

<Non-flammable spray paint manufacturing step (S60)>

This step (S60) is a step of preparing a non-combustible spray coating material by mixing the fine mineral powder, non-combustible mixture, non-combustible resin and natural binder prepared through the previous steps, and specific examples of the combination are shown in Table 4 below.

Formulation example 1 Formulation example 2 Formulation example 3 Formulation Example 4 Formulation Example 5 Mineral fine powder 53.0 wt% 43.0 wt% 38.0 wt% 33.0 wt% 25.0 wt% Non-flammable mixture 40.0 wt% 50.0 wt% 55.0 wt% 60.0 wt% 68.0 wt% Non-flammable resin 3.0 wt% 3.0 wt% 3.0 wt% 3.0 wt% 3.0 wt% Natural binder 4.0 wt% 4.0 wt% 4.0 wt% 4.0 wt% 4.0 wt% Sum 100.0 wt% 100.0 wt% 100.0 wt% 100.0 wt% 100.0 wt%

<Measurement of non-flammability of non-flammable spray coating material>

The non-flammability of the non-flammable spray coating material according to the present invention was measured.

In the non-combustible task, a non-combustible panel was manufactured by spraying the entire outer surface of the plywood used as a building interior material, followed by a non-combustible test.

If a flame is applied until the non-flammable panel is ignited and the sample does not catch fire, or if the length of carbonization is short due to a fire for 3 minutes, it is regarded as incomplete combustion. At this time, the combustion was measured while changing the oxygen concentration, and the ignition was confirmed by increasing the oxygen concentration from 30%. Although the oxygen concentration was increased to 90%, combustion did not occur in the non-combustible panel according to the present invention.

As a result, it was confirmed that the non-flammability of the non-flammable spray coating material according to the present invention was very excellent.

The non-flammable spraying material according to the present invention has the advantage of being easy to install, excellent adhesion, excellent flame retardancy, and excellent safety against fire, and has great industrial applicability.

Claims (5)

Perlite 1.0 ~ 50.0 wt%, vermiculite 1.0 ~ 50.0 wt%, and sepiolite 1.0 ~ 50.0 wt% are mixed to heat a fine powder mixture with an average particle size of 200 ~ 1000 mesh composed of 100.0 wt% to 800 ℃ ~ 1,200 ℃ Fine mineral powder (A) expanded by 25.0 to 50.0 wt%;
10.0 to 50.0 wt% of purified water, 10.0 to 30.0 wt% of magnesium hydroxide, 10.0 to 30.0 wt% of porous macsumsuk granules, 10.0 to 30.0 wt% of sodium silicate, and 10.0 to 30.0 wt% of urea resin are mixed to form 100.0 wt% Non-combustible mixture (B) 40.0 to 70.0 wt%;
LDPE/EVA resin 50.0 ~ 70.0 wt%, magnesium hydroxide 25.0 ~ 45.0 wt%, dispersant 0.01 ~ 2.0 wt%, flame retardant fumed silica 0.01 ~ 2.0 wt%, antioxidant 0.01 ~ 2.0 2.0 to 5.0 wt% of a non-combustible resin (C) composed of 100.0 wt% by mixing wt%;
Rosin (d1) 30.0 ~ 68.0 wt%,
A mixture (d2) 30.0 ~ 68.0 wt% of a mixture of glue and fish glue in a 1:1 weight ratio,
The dried and shredded cypress leaves are immersed in acetone, but the cypress leaves and 70% acetone are mixed in a weight ratio of 1: 10 to 30 times, and extracted twice at room temperature for 4 to 6 days, and the extract is used with filter paper. Cypress tree extract prepared as a powder by filtering with (filter paper) and drying under reduced pressure,
Dried fine mugwort was immersed in ethanol, but extracted twice for 1 to 3 days at room temperature with a weight ratio of 1: 8 to 12 of wormwood and 95% ethanol, and the extract was filtered with filter paper. , Wormwood extract prepared as a powder by drying under reduced pressure,
Peppermint and 80% ethanol were mixed in a ratio of 1: 15 to 30 and extracted under reflux for 2 to 5 hours, and the extract was filtered with filter paper and dried under reduced pressure to obtain a powdered mint extract of 3:5. Natural binder (D) composed of 100.0 wt% by stirring and mixing (d1+d2+d3) 0.1 to 2.0 wt% of the antibacterial extract (d3) formulated by mixing at a ratio of 2 by weight at 2,000 to 3,000 rpm for 20 to 50 minutes (d1+d2+d3) 2.0 ~ 5.0 wt%; Non-flammable spray coating, characterized in that the composition of the mixture (A + B + C + D).
The method according to claim 1,
Porous Macsumsuk granules are pulverized to have an average particle diameter of 30 to 40 µm, and mixed so that the weight ratio of water and solid powder is 1:2 to prepare a slurry of Macsumsuk powder, and calcium carbonate ( CaCO ₃ ) or sodium carbonate (Na ₂ CO ₃ ) or a blowing agent powder selected from the group consisting of a mixture thereof is mixed in an amount of 0.01 to 0.1 wt% based on the solid content of the slurry of the Macsumsuk powder to form a mixture, and the mixture A non-flammable spray coating, characterized in that it is manufactured by molding the Macsumsuk granules into granules having an average particle diameter of 80 to 120 μm using a granulator, and then calcining the Macsumsuk granules at a temperature range of 1,000 to 1,200°C.
The method according to claim 1,
LDPE/EVA resin is composed by adding 40.0 to 60.0 wt% of LDPE (low density polyethylene) and 40.0 to 60.0 wt% of EVA (polyethyleneco-vinylacetate) into a melting vessel and then melt-mixing at 120℃ to 180℃ for 3 to 7 minutes. Non-flammable spray painting material characterized by being made.
The method according to claim 1,
Antioxidants are Tris(2.4-di-t-butylphenyl)-phosphite, Bis(2.4-di-t-butyl), 2.2-Methylenebis(4-methyl-6-t-butylphenol), Pentaerythritol diphosphite, Octadecyl 3,5- di-t-butyl-4-hydroxhydrocinnamate, 2.6-di-t-Butyl-4-methylphenol, Tetrakis[methylene-3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate]methane or Alkylester phosphite Non-flammable spray coating, characterized in that any one or two or more selected.
An expandable mineral formed by mixing 1.0 to 50.0 wt% of perlite, 1.0 to 50.0 wt% of vermiculite, and 1.0 to 50.0 wt% of sepiolite was pulverized into 200 to 1000 mesh, and then heated and expanded at 800 to 1,200°C. The step of preparing a fine mineral powder (S10),
The raw Macsumsuk stone is pulverized to have an average particle diameter of 30 to 40 µm, and mixed so that the weight ratio of water and solid powder is 1:2 to prepare a slurry of Macsumsuk powder, and calcium carbonate (CaCO ₃ ) or sodium carbonate in the slurry of Macsumsuk powder (Na ₂ CO ₃ ) or a blowing agent powder selected from the group consisting of a mixture thereof is mixed in an amount of 0.01 to 0.1 wt% based on the solid content of the slurry of the macsumsuk powder to form a mixture, and the mixture is used in a granulator. After forming the Macsumsuk granules by molding into granules having an average particle diameter of 80 to 120 μm, the Macsumsuk granules are calcined at a temperature range of 1,000 to 1,200° C. to prepare porous Macsumsuk granules (S20),
A step of mixing the porous macsumsuk granules 10.0 to 30.0 wt%, purified water 10.0 to 50.0 wt%, magnesium hydroxide 10.0 to 30.0 wt%, sodium silicate 10.0 to 30.0 wt%, and urea resin 10.0 to 30.0 wt% to prepare a non-combustible mixture (S30) Wow,
LDPE (low density polyethylene) 40.0 ~ 60.0 wt% and EVA (polyethyleneco-vinylacetate) 40.0 ~ 60.0 wt% were added to the melter and then melted and mixed at 120 to 180 for 3 to 7 minutes to form LDPE/EVA resin,
To the melter, magnesium hydroxide, dispersant, fumed silica as a flame retardant aid, and antioxidant are added, but LDPE/EVA resin 50.0 to 70.0 wt%, magnesium hydroxide 25.0 to 45.0 wt%, and dispersant 0.01 to 2.0 wt. %, fumed silica of a flame retardant auxiliary (0.01 to 2.0 wt%), and an antioxidant (0.01 to 2.0 wt%) were added to achieve a blending ratio of 5 to 70 rpm at a temperature of 120 to 140 °C. Stirring for 15 minutes to prepare the composition and then filtering to prepare a non-combustible resin (S40),
30.0 ~ 68.0 wt% of rosin, 30.0 ~ 68.0 wt% of a mixture of 1: 1 weight ratio of glue and fish, and 0.1 ~ 0.1 ~ of an antibacterial extract composed of cypress extract, wormwood extract, and mint extract in a 3:5:2 weight ratio A step (S50) of preparing a natural binder by stirring 2.0 wt% at 2,000 to 3,000 rpm for 20 to 50 minutes,
The mineral fine powder (a) 25.0 ~ 50.0 wt%; Incombustible mixture (b) 40.0 to 70.0 wt%; 2.0 to 5.0 wt% of non-combustible resin (c); Natural binder (d) 2.0 ~ 5.0 wt%; Non-flammable spray coating method comprising the step (S60) of preparing a non-flammable spray coating material by mixing.

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