KR101350975B1 - Composition for Flame Resistant - Google Patents

Abstract

The present invention relates to a flame retardant composition used for wood and rice straw having a flammable structure. Specifically, it can be applied or sprayed on wood, rice straw, Korean paper, clothing, etc. to suppress the propagation of flames, and has excellent burnout, afterflame time, after-rest time, and 13 kinds of cultural assets and Korean traditions It is free from harmful effects such as whitening, peeling, and staining against the dark blue color of the Navy Blue, Samcheong, Seokwang, Seokju, Scarlet, Lactose, Lower Leaf, Multilateral, Meat Color, and Black), while improving the flame resistance on the surface of the porous structure and the inside and the outside. It relates to an organic-inorganic binder flame retardant composition for room temperature curing that can prevent deterioration.

Description

Flame Retardant Composition {Composition for Flame Resistant}

The present invention relates to a flame retardant composition used for wood and rice straw having a flammable structure. Specifically, it can be applied or sprayed on wood, rice straw, Korean paper, clothing, etc. to suppress the propagation of flames, and has excellent burnout, afterflame time, after-rest time, and 13 kinds of cultural assets and Korean traditions It is free from harmful effects such as whitening, peeling, and staining against the dark blue color of the Navy Blue, Samcheong, Seokwang, Seokju, Scarlet, Lactose, Lower Leaf, Multilateral, Meat Color, and Black), while improving the flame resistance on the surface of the porous structure and the inside and the outside. It relates to an organic-inorganic binder flame retardant composition for room temperature curing that can prevent deterioration.

Flame retardant treatment of combustible materials and woods, fibers and plastics used in daily life is difficult in terms of technology and economics. In practice, however, there is no need for this, and in each country, the law requires that only objects that are deemed necessary in terms of fire protection be treated by law.

In the case of developed countries in the US, Europe, and Japan, objects that require flame retardant treatment are children's toys such as interior and exterior materials of vehicles, trains, ships, aircrafts, and other materials such as vehicles, combustible parts of electric and electronic products, and industrial products. It is regulated widely such as clothing.

In Korea, fire prevention targets such as plywood, fiberboard, carpets, and curtains, which are interior and exterior materials for high-rise buildings, theaters, hotels, hospitals, and other special places, are regulated in the Fire Protection Law. Flame retardant treatment is highly recommended.

In terms of materials, the materials are classified into three types, such as wood, fiber, and plastics. The method of flameproofing varies greatly depending on the type of object to be treated.

As can be seen from the existing Korean wooden cultural assets, if the proper preservation method is taken, the life of the wood is confirmed to be over 1,000 years, but the preservation technology for such excellent wooden cultural assets is very weak to date.

Wooden cultural properties are mainly made of wood, so they are very vulnerable to fire and have a weak resistance to mold, insects, and the like. Wooden cultural properties have a high risk of fire and biodegradation if they are not effectively flameproofed, protected, preserved, or treated.

Phosphates, sulfates, boric acids, etc. have been used as water-soluble inorganic salts as conventional wood flame retardants. Water-soluble inorganic salts have excellent flame retardant effect, but when applied to wooden cultural properties, sulfuric acid reacts with calcium carbonate, which is the main component of the powder contained in cerebrum, etc. It turns into an insoluble salt such as calcium phosphate, causes whitening, and the like, which not only damages the appearance of mono, but also reduces the flame resistance.

Conventional Korean Patent Publication Nos. 2010-0074444 and 2007-0103884 and Korean Patent No. 776377 have been disclosed for the protection of wooden buildings. However, there is insufficient solution to the above problems.

KR 10-2010-0074444 (Korea Institute of Science and Technology) 2010.7.2. KR 10-0776377 (strong years, etc.) 2007.11.7. KR 10-2007-0103884 (Ha Jin-wook et al.) 2007.10.25.

The problem of the present invention is to improve the flameproofing performance of the interior and exterior materials of various porous buildings, and 13 kinds of mono and mono blue of various wooden structures, including general buildings, wooden buildings, cultural properties (Benrok, Yangnok, Jangdan, Guncheong, Samcheong, It does not involve white powder or bleaching effect of turmeric, limestone, scarlet, land sugar, lower lobe, multilateral, flesh color, ink), and it can give antiseptic, antiseptic, and insect repellent effect at the same time, and it keeps deterioration of porous building materials and wooden structures. It can prevent semipermanently and maintain the appearance of building for a long time. It not only has excellent chemical resistance, but also has excellent binding and affinity with porous structure. It is an object of the present invention to provide an environmentally friendly flame-retardant flame retardant composition for room temperature curing.

In order to achieve the object as described above, the flame retardant composition of the present invention,

100 parts by weight of a silica sol unsubstituted or substituted with a propyl group and an ethoxy group,

1 to 600 parts by weight of a flame retardant aid selected from the group consisting of phosphates, sulfates, halides, sulfamates, boron salts, phosphonates and mixtures thereof,

10 to 500 parts by weight of an unsubstituted or substituted amine with 1 to 5 carbon atoms, and

50 to 10000 parts by weight of water

And a control unit.

In addition, the silica concentration of the silica sol may be 5 to 50% by weight.

In addition, the phosphate is ammonium monophosphate, diammonium phosphate, ammonium triphosphate, sodium monophosphate, sodium diphosphate, sodium triphosphate, potassium monophosphate, potassium diphosphate, tripotassium phosphate, guanidine phosphate, guanidine diphosphate, condensation The degree can be selected from the group consisting of low condensed ammoniumpolyphosphate of 1 to 250, guanylureaureaphosphate, amine salt of phosphoric acid and mixtures thereof.

In addition, the sulfate may be selected from the group consisting of ammonium sulfate, sodium sulfate, potassium sulfate, amine salt of sulfuric acid and mixtures thereof.

In addition, the halide salt may be selected from the group consisting of ammonium chloride, sodium chloride, potassium chloride, ammonium bromide, sodium bromide, potassium bromide, amine salts of halogen acids and mixtures thereof.

In addition, the sulfamate may be selected from the group consisting of guanidine sulfamate, ammonium sulfamate, sodium sulfamate, potassium sulfamate, an amine salt of sulfamic acid, and mixtures thereof.

In addition, the boron salt is boric acid, borax, boron oxide, potassium pentaborate (KB ₅ O ₇ ), potassium tetraborate (K ₂ B ₄ O ₇ ), sodium metaborate (NaBO ₂ ), ammonium pentaborate [(NH ₄ ) ₂ B ₁₀ O ₁₆ · 8H ₂ O], an amine salt of boric acid, and mixtures thereof.

Further, the phosphonic acid salts include aminotrimethylenephosphonic acid, 1-hydroxyethylene-1,1-diphosphoic acid, ethylenediaminetetramethylenephosphonic acid, hexamethylenediaminetetramethylenephosphonic acid, and diethylenetriaminepenta. It may be selected from the group consisting of methylenephosphonic acid, amine salt of phosphonic acid and mixtures thereof.

In addition, the water may be nanobubble water.

In addition, the average bubble diameter of the nanobubble number may be 1 to 500 nm.

In addition, the weight ratio of the liquid and the gas of the nanobubble water may be a liquid: gas = 70 to 99.9: 0.1 to 30.

In addition, the gas constituting the nanobubble water may be selected from the group consisting of air, nitrogen, oxygen and mixtures thereof.

Non-volatile room temperature-based organic-based binder flame retardant composition according to the present invention is easy to work by simply applying, depositing or spraying on a porous structure such as wood or straw. As such, the composition of the present invention applied to the porous structure penetrates to the inside of the porous structure, maintains the structure of the structure and the continuous flame resistance of the structure, and can obtain the effect of preventing chemical and biological deterioration, as well as significantly the appearance of the building It can be improved and the structure can be effectively processed in a short time.

Representative treatment effects according to the present invention as described above are as follows.

1) Flame retardant (flame retardant) / durability enhancement effect:

When the room temperature curable flame retardant composition according to the present invention is applied to a porous structure, since the molecular conjugate is formed inside and outside the structure, flame propagation can be suppressed to achieve excellent flame retardant effect in terms of carbon screen area, afterflame time and residual time, The strength of the structure is increased and the wear resistance is improved.

2) Chemical biological / degradation protection effect:

The flame retardant composition according to the present invention can prevent acidification and its deterioration by blocking the entry of water, CO ₂ , NO x, SO x, etc., which are factors of biological degradation or neutralization of the porous wood structure. In addition, its excellent biological resistance prevents the penetration of insects and larvae from the outside and is effective for porous structures.

3) Weathering resistance / freeze thawing effect:

Application of the flame retardant composition according to the present invention to a porous structure improves weather resistance and suppresses deterioration by ultraviolet rays. It also inhibits the ingress of moisture to reduce cracks caused by freeze / thaw cycles.

4) Appearance Enhancement Effect:

When the flame retardant composition according to the present invention is applied to a porous structure, the surface of the material is sealed by the reforming reaction, and the appearance of the building is beautiful. In addition, it is possible to suppress the occurrence of mold.

5) Flame retardant effect:

When the flame retardant composition according to the present invention is applied to a porous structure, the pyrolysis path of the polymer is changed to reduce the amount of flammable gas and increase the amount of residual carbide to impart flame retardancy.

In addition, by forming a film on the surface of the polymer during combustion to block the contact between the combustible gas and oxygen in the air to prevent the combustion occurs or reduce the amount of heat generated.

In addition, the continuous reaction is suppressed by the flame retardant absorbing active radicals such as H. OH. OH. Participating in the combustion reaction, and consuming heat energy that must be maintained in the combustion process.

The flame retardant composition of the present invention can not only impart flame retardant, anti-fog, antiseptic, and insect repellent effects to woods, rice straws, and textiles, including wooden cultural assets, but also cause no white powder or whitening, and have a relatively small color change. . Moreover, it is available as a one-component liquid, which saves processing time and costs and is easy to use.

In addition, it is excellent in terms of the surface area of burned wood, afterflame time and remaining time, and there are no harmful effects such as whitening, peeling, and staining for the 13 kinds of monochromatic colors of wood cultural properties.

The method of imparting flame retardancy to general-purpose polymer products using the flame retardant principle is as follows.

ㆍ Manufacture of flame retardant polymer by changing molecular structure

ㆍ How to chemically bind reactive flame retardant in molecular structure

ㆍ How to physically add additive flame retardant in molecule

Hereinafter, preferred embodiments of the present invention will be described in detail. In the following description, numerous specific details, such as specific elements, are set forth in order to provide a thorough understanding of the present invention, and it is to be understood that the present invention may be practiced without these specific details, It will be obvious to those who have knowledge of. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In the present invention, the term "wooden cultural property" refers to all wooden buildings and wooden structures having preserved value, as well as cultural properties designated by national treasures, treasures, and tangible cultural properties managed by the Cultural Properties Protection Act.

In order to achieve the object as described above, the non-volatile room temperature curing organic-inorganic binder internal and external wood and rice straw flame retardant composition of the present invention,

100 parts by weight of a silica sol unsubstituted or substituted with a propyl group and an ethoxy group,

1 to 600 parts by weight of a flame retardant aid selected from the group consisting of phosphates, sulfates, halides, sulfamates, boron salts, phosphonates and mixtures thereof,

10 to 500 parts by weight of an unsubstituted or substituted amine with 1 to 5 carbon atoms, and

50 to 10000 parts by weight of water

And a control unit.

The unsubstituted or substituted propyl group and ethoxy group colloidal silica sol reacts with the various flame retardant aids to form a silica sol flame retardant adjuvant and the compound constitutes a flame retardant.

Here, the silica concentration in the silica sol is generally 5 to 50% by weight.

In addition, the phosphate is ammonium monophosphate, diammonium phosphate, ammonium triphosphate, sodium monophosphate, sodium diphosphate, sodium triphosphate, potassium monophosphate, potassium diphosphate, tripotassium phosphate, guanidine phosphate, guanidine diphosphate, condensation The degree can be selected from the group consisting of low condensed ammoniumpolyphosphate of 1 to 250, guanylureaureaphosphate, amine salt of phosphoric acid and mixtures thereof.

In addition, the sulfate may be selected from the group consisting of ammonium sulfate, sodium sulfate, potassium sulfate, amine salt of sulfuric acid and mixtures thereof.

In addition, the halide salt may be selected from the group consisting of ammonium chloride, sodium chloride, potassium chloride, ammonium bromide, sodium bromide, potassium bromide, amine salts of halogen acids and mixtures thereof.

In addition, the sulfamate may be selected from the group consisting of guanidine sulfamate, ammonium sulfamate, sodium sulfamate, potassium sulfamate, an amine salt of sulfamic acid, and mixtures thereof.

In addition, the boron salt is boric acid, borax, boron oxide, potassium pentaborate (KB ₅ O ₇ ), potassium tetraborate (K ₂ B ₄ O ₇ ), sodium metaborate (NaBO ₂ ), ammonium pentaborate [(NH ₄ ) ₂ B ₁₀ O ₁₆ · 8H ₂ O], an amine salt of boric acid, and mixtures thereof.

Further, the phosphonic acid salts include aminotrimethylenephosphonic acid, 1-hydroxyethylene-1,1-diphosphoic acid, ethylenediaminetetramethylenephosphonic acid, hexamethylenediaminetetramethylenephosphonic acid, and diethylenetriaminepenta. It may be selected from the group consisting of methylenephosphonic acid, amine salt of phosphonic acid and mixtures thereof.

The flame retardant aid can be used alone or in a mixed form, the content of which is preferably 1 to 600 parts by weight based on 100 parts by weight of the silica sol. If the content of the flame retardant is less than the above range, it is difficult to achieve sufficient flame retardant performance. On the contrary, if the content of the flame retardant exceeds the above range, it is difficult to show white powder or whitening phenomenon to mono or to prepare a uniform one-part form.

In particular, the present invention is characterized in that the silica sol and the flame retardant aid include a penetration aid as an essential ingredient to assist the deep penetration of pores such as wood.

As the penetration aid, an unsubstituted or substituted C1-C5 alcohol is used, and examples thereof include methanol, ethanol, propanol, isopropyl alcohol, monoethanolamine, and the like.

It is preferable that such a penetration aid is used in an amount of 10 to 500 parts by weight per 100 parts by weight of the silica sol. If the penetration is less than the above range, the penetration is insufficient and the flame retardant performance is reduced. There is a drawback to lengthening.

On the other hand, the method of infiltrating the flameproof composition of the present invention on the surface of the porous structure is made by applying, impregnating or dispersing the flameproof composition on the surface of the porous structure, or immersing the porous object in the flameproof composition of the present invention.

The present invention is characterized by using the bonding strength and chemical reaction of the solvent in the appropriate temperature control without using a separate dispersant. The dispersant is a component which is added to disperse the dispersant well in the dispersion medium, which itself may be harmful to the environment, and furthermore, in the case of the present invention, it is preferable to avoid its use because it inhibits the reaction of the colloidal silica sol. The present inventors were able to minimize the use of dispersant and disperse the flame retardant and the like completely and stably by using nanobubble water instead of general water, and this is a major advantage of the present invention.

Recently, it has been found that there are various effects on bubbles (bubbles) having a small diameter, and researches on the technology for producing such bubbles and their effects are currently underway. The bubbles can be classified into micro bubbles, micro nano bubbles and nano bubbles according to their diameters. Specifically, the microbubble is a bubble having a diameter of 10 to several tens of micrometers at the time of its generation, and the micro nanobubbles are bubbles having a diameter of several hundred nm to 10 micrometers at the time of its generation, and the nanobubbles are hundreds of microbubbles at the time of its generation. It is a bubble which has a diameter of nm or less. In addition, a part of micro bubbles may change into micro nano bubbles by the contraction motion after generation | occurrence | production. In addition, nanobubbles have the property of being present in a liquid for a long time.

The present invention is characterized in that the nanobubbles containing the nanobubbles can be easily mixed with inorganic materials without a separate dispersant, and the inorganic materials can be stably mixed even after a long time.

It is preferable that the average particle diameter of the bubbles constituting the nanobubble number is 1 to 500 nm. To form the nanobubble of less than 1 nm, it is necessary to apply more ultrasonic waves or to increase the pumping pressure. On the contrary, if the average particle diameter exceeds 500 nm, there is a problem that it is difficult to achieve the object of the present invention.

In addition, the gas constituting the nanobubble water is generally air, but when oxygen requires an oxidizing power, it is more preferable to use nitrogen when oxidation is a problem, and to use a mixed gas thereof. It is possible.

The weight ratio of the liquid and the gas constituting the nanobubble water is preferably liquid: gas = 70 to 99.9: 0.1 to 30. When the gas is less than 0.1 weight ratio, it is difficult to achieve the object of the present invention, and exceeds 30 weight ratio. If there is a problem of operating cost increase due to excessive bubble injection.

In the method for treating a porous structure using the flame retardant composition of the present invention, the flame retardant composition is applied to a surface of a porous structure, wood, paper, or clothing, deposited or sprayed, and the flame retardant composition penetrates into the surface or inside and is cured by curing. It comprises the step of.

The chemical species constituting the flame retardant composition of the present invention soaked into the pores are coated on the pores present in the porous structure, thereby producing a flame retardant compound.

Furthermore, the flame retardant composition of the present invention is excellent in chemical resistance, so that the cured crystals reduce the absorbency and exhibit high durability against ultraviolet rays, light, solvents, glyces and general chemicals.

   Fields to which the flame retardant composition of the present invention can be applied are interior and exterior materials of porous buildings, external pollution prevention and flame prevention of all external exposed sculptures using wood, wooden structure external decks that require a soft touch like benches or railings, siding of external wood, exterior Doors, fences, tables, window frames and exterior moldings, wooden playground equipment for schools and kindergartens, Kyoboje, wooden cultural festivals, temples, wooden buildings, exterior wooden products, gazebos, flower boxes, plaids, wooden houses, etc. have.

Hereinafter, embodiments of the present invention will be described.

Example

Example  Room temperature Hardening  Flame retardant composition for interior and exterior wood and rice straw

According to the composition ratio shown in Table 1, to prepare a flame retardant composition according to an embodiment of the present invention.

Constituent Composition ratio water 90 Silica Sol (Youngil Hwaseong, Korea) One Ammonium Phosphate 4 Methanol 5

Item
Order of judgment
Test result (fireproof wood) Test body 1 Test body 2 Test body 3 Afterflaming time (s) Within 10 0 3.2 0 Remaining time (s) Within 30 0 0 0 Surface area (cm ² ) Within 50 33.7 34.1 28.8 Carbonization length (cm) Within 20 6.2 7.2 6.3

Constituent Composition ratio water 80 Silica Sol (Youngil Hwaseong, Korea) 5 Calcium sulfate 10 Methanol 5

Item
Order of judgment
Test result (fireproof wood) Test body 1 Test body 2 Test body 3 Afterflaming time (s) Within 10 0 0 0 Remaining time (s) Within 30 0 0 0 Surface area (cm ² ) Within 50 35.1 34.2 47.8 Carbonization length (cm) Within 20 10.7 9.6 8.4

Constituent Composition ratio water 69 Silica Sol (Youngil Hwaseong, Korea) 15 Sodium bromate 6 Isopropyl alcohol 10

Item
Order of judgment
Test result (fireproof wood) Test body 1 Test body 2 Test body 3 Afterflaming time (s) Within 10 0 0 0 Remaining time (s) Within 30 0 0 0 Surface area (cm ² ) Within 50 42.1 24.2 26.5 Carbonization length (cm) Within 20 9.7 8.8 8.4

Constituent Composition ratio water 45 Silica Sol (Youngil Hwaseong, Korea) 25 Potassium borate 5 ethanol 25

Item
Order of judgment
Test result (fireproof wood) Test body 1 Test body 2 Test body 3 Afterflaming time (s) Within 10 1.5 0 0 Remaining time (s) Within 30 0 0 0 Surface area (cm ² ) Within 50 33.1 34.2 30.8 Carbonization length (cm) Within 20 6.7 7.6 7.4

Constituent Composition ratio water 55 Element 5 Phosphoric Acid 12 Ammonium Diphosphate 10 Monoethanolamine 5 (3-aminopropyl) triethoxysilane 13

Test Example  1: Physical and chemical performance evaluation

1) Release of Organics (TVOCs)

Table 10 shows the results of analyzing the organic material release from the Example of Table 9. Testing was performed by gas chromatography / MS, Headspace (Perkin-elmer, USA), Tarac GC / DSQIIMS (ThermoFinnigan, USA).

2) Amount of formaldehyde dissolution

A flame retardant is applied to both sides of the specimen (70 mm × 150 mm, 8 sheets) and installed in a desiccator containing 300 mL of distilled water. It is maintained at a temperature of 23 ℃ for 24 hours to form formaldehyde contained in distilled water and measured by UV absorbance photometer (UV-1650PC, SHIMADZU).

3) Heavy metal content (Pb, Cd, Hg, Cr6 +)

Flame retardant solution is analyzed using ICP, AAS, UV absorbance photometer.

4) Hydrogen ion concentration (pH)

Flame retardant is measured with a pH meter.

5) Specific gravity

Fill the pycnometer with flame retardant and measure the weight difference before and after.

Table 10 and Table 11 summarize the test results for the presence of hazardous substances and basic physical properties for the examples.

As can be seen in Table 10, the flame retardant composition of the present invention did not emit any organic material, it was confirmed that the material is harmless to the environment and hygienically safe to workers.

Test Items Unit (g / L) Test result Total Volatile Organic Compounds (TVOCs) Not detected Acetone Not detected (detection limit 0.01) Methyl ethyl ketone Not detected (detection limit 0.005) benzene Not detected (detection limit 0.005) 2-propanol Not detected (detection limit 0.005) Methyl isobutyl ketone Not detected (detection limit 0.005) Isobutanol Not detected (detection limit 0.01) toluene Not detected (detection limit 0.005) Butyl acetate Not detected (detection limit 0.005) 1-butyl alcohol Not detected (detection limit 0.01) Cellosolve Not detected (detection limit 0.01) o-xylene Not detected (detection limit 0.005) m-xylene Not detected (detection limit 0.005) p-xylene Not detected (detection limit 0.005) Styrene Not detected (detection limit 0.005) Butyl cellosolve Not detected (detection limit 0.01) Other VOCs Not detected (detection limit 0.005)

Test Items unit result standard Test Methods VOCs g / L ND ^{1 )} 50 KS M ISO 11890-2 Formaldehyde dissipation mg / L ND ^{2 )} 1.0 KS M 1998-4 lead mg / kg ND ^{3 )}
Sum
0.1%
Below KS M ISO 3856-1 cadmium mg / kg ND ^{4 )} KS M ISO 3856-4 Mercury mg / kg ND ^{4 )} KS M ISO 3856-7 Hexavalent chromium mg / kg ND ^{4 )} KS M ISO 3856-5 Hydrogen ion concentration Measuring temperature - 6.4 6 to 8 KS M 0011 21 ℃ density Measuring temperature g / mL 1.12 1.08 ~ 1.16 ⁵⁾ KS M ISO 2811-1 23 ℃

Note 1) Not detected (detection limit: 0.1 g / L or less)

   2) Not detected (detection limit: 0.01 mg / L or less)

   3) Not detected (detection limit: 2.5 mg / kg or less)

   4) Not detected (detection limit: 1.0 mg / kg or less)

5) 98% to 105% of design value 1.1 g / mL.

Test Example  2: weather resistance evaluation

1) Accelerated weathering test conditions

The flame retardant-coated test piece was dried for at least 7 days and then installed in an accelerated weather resistance tester, and tested under the following conditions.

-Equipment Name: Accelerated Weathering Tester UV2000 (ATLAS, USA), Colorimeter I-7 (McBath, UK)

-Test cycle: UV 50 ℃, 4 h → condensation 40 ℃, 4 h

-Cycle repeat: 25 times, total 200 hours

-Irradiance: 0.63 W / m2

- Lamp type: UV-A 340 nm

 2) Measurement items

-Appearance: Compare with before and after accelerated weathering test, whitening, peeling, stain and gloss are judged visually by the tester to check for abnormalities.

-Comparative Color Difference: Measure the chromaticity before and after the test by using colorimeter for test specimen coated with flame retardant and blank test specimen without flame retardant. The difference between the color difference value of the test piece coated with the flame retardant and the blank value of the blank test piece without the flame retardant shall be less than 3.0 for each specimen, and less than 1.5 for the average for each monochromatic color. The color difference values of the mono test specimens before and after the weather resistant flame retardant treatment are shown in Table 12.

Sample (mono pigment) Appearance (white, peeled, stained, polished) Brain rock clear Sheep clear Short and long clear County Office clear Samcheong clear Turmeric clear Evening clear scarlet clear Land clear Lower lobe clear Multilateral clear Color clear Indian ink clear

Test Example  3: Flammability  evaluation

 1) Test conditions for evaluation of flame retardancy

- Equipment name: Flame proofing tester (FL-45MC, SUGA test instrument)

-Flame length: 65 mm

- Heating time: 2 minutes

 2) Measurement items and criteria

-Afterflame time: within 10 seconds from when the burner's flame is removed until the flame burns up

-Residual time: Within 30 seconds from when the burner's flame is removed until the combustion state stops without raising the flame.

-Surface area: Area of carbonized part of test piece (wood) after test, 50 cm2

 (Measuring device: PLANIX EX (TAMAYA technics Inc., JAPAN))

-Carbonization length: The length of the carbonized part of the test piece (wood) after the test, 20 cm

The test results The flame resistance test results are shown in Tables 14 to 17.

sample Afterglow time (sec) One 2 3 Average Brain rock 0 0 0 0 Sheep 0 0 0 0 Short and long 0 0 0 0 County Office 0 0 0 0 Samcheong 0 0 0 0 Turmeric 0 0 0 0 Evening 0 0 0 0 scarlet 0 0 0 0 Land 0 0 0 0 Lower lobe 0 0 0 0 Multilateral 0 0 0 0 Color 0 0 0 0 Indian ink 0 0 0 0 Unapplied 0 0 0 0

sample Remaining time (sec) One 2 3 Average Brain rock 0 0 0 0 Sheep 0 0 0 0 Short and long 0 0 0 0 County Office 0 0 0 0 Samcheong 0 0 0 0 Turmeric 0 0 0 0 Evening 0 0 0 0 scarlet 0 0 0 0 Land 0 0 0 0 Lower lobe 0 0 0 0 Multilateral 0 0 0 0 Color 0 0 0 0 Indian ink 0 0 0 0 Unapplied 0 0 0 0

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Of course it is possible. Accordingly, the scope of the present invention should not be construed as being limited to the above-described embodiments, but should be determined by equivalents to the appended claims, as well as the following claims.

Claims (10)

100 parts by weight of a silica sol unsubstituted or substituted with a propyl group and an ethoxy group,
1 to 600 parts by weight of a flame retardant aid selected from the group consisting of halides, sulfamate, boron salts and mixtures thereof,
10 to 500 parts by weight of an unsubstituted or substituted amine with 1 to 5 carbon atoms, and
50 to 10000 parts by weight of water
Flame retardant composition comprising a. The method according to claim 1,
Flame retardant composition, characterized in that the silica concentration of the silica sol is 5 to 50% by weight. delete delete The method according to claim 1,
The halide salt is flame retardant composition, characterized in that selected from the group consisting of ammonium chloride, sodium chloride, potassium chloride, ammonium bromide, sodium bromide, potassium bromide, amine salts of halogen acids and mixtures thereof. The method according to claim 1,
The sulfamate is a flame retardant composition, characterized in that selected from the group consisting of guanidine sulfamate, ammonium sulfamate, sodium sulfamate, potassium sulfamate, amine salt of sulfamic acid and mixtures thereof. The method according to claim 1,
The boron salt is boric acid, borax, boron oxide, potassium pentaborate (KB ₅ O ₇ ), potassium tetraborate (K ₂ B ₄ O ₇ ), sodium metaborate (NaBO ₂ ), ammonium pentaborate [(NH ₄ ) ₂ B ₁₀ O ₁₆ .8H ₂ O], an amine salt of boric acid and a mixture thereof. delete The method according to claim 1,
The water-proof composition, characterized in that the nanobubble water. The method of claim 9,
Flame-proof composition, characterized in that the average bubble diameter of the nanobubble number is 1 to 500 nm.