KR101163121B1 - The manufacturing incombustibility construction materials and incombustibility construction materials - Google Patents

Abstract

PURPOSE: A manufacturing method of a noncombustible prefabricated construction material and a noncombustible prefabricated construction material manufactured thereby are provided to improve the damp-proofing and rust-proofing effects of the construction material. CONSTITUTION: A manufacturing method of a noncombustible prefabricated construction material is as follows. Filler is dipped in a damping solution(S1). The filler is dipped in a noncombustible material(S2). The noncombustible material comprises 100 weight% of silicate, 12-24 weight% of agar, 6-15 weight% of calcium hydroxide, 10-30 weight% of oil paint, and 10-30 weight% of heat-resistant inorganic matter.

Description

Manufacturing method of non-combustible prefabricated building materials and non-combustible prefabricated building materials {THE MANUFACTURING INCOMBUSTIBILITY CONSTRUCTION MATERIALS AND INCOMBUSTIBILITY CONSTRUCTION MATERIALS}

The present invention relates to a method for manufacturing a non-flammable prefabricated building material and a prefabricated building material manufactured thereby, and more particularly, to a general filler having high sound insulation through a process of increasing the nonflammability, heat insulation, and moisture resistance of the filler included in the prefabricated building material. The present invention relates to a method of manufacturing a non-combustible prefabricated building material having improved non-combustibility and durability, and to a non-combustible prefabricated building material produced thereby.

Prefabricated building materials have recently been developed with various types of prefabricated building materials to meet these demands, with increasing interest in prefabricated buildings and wider applications. The sandwich panel most commonly used as the prefabricated building refers to a building material widely used in the construction field, such as used as an exterior material on an exterior wall or a roof, or as an interior material for a partition of an interior, wherein the sandwich panel is made of steel. Between the upper plate and the lower plate, a filler having performance such as sound insulation and heat insulation is placed and integrally laminated.

In the sandwich panel, any filler may be used as long as it is a material having sound insulation and insulation. Generally, styrofoam and urethane having excellent insulation and sound insulation are mainly used. However, the general filler is easily burned or melted in the fire and has a disadvantage of being very vulnerable to fire because toxic gas is generated during combustion.

Therefore, in recent years, non-combustible materials such as glass wool, rock wool, mineral wool, and fiber foam have been in the spotlight as fillers, as non-combustibility is required along with sound insulation and insulation. However, the sandwich panel is supplied with the upper plate and the lower plate made of iron plates on both sides of the upper and lower sides, and in the middle, the filling material is inserted between the upper plate and the lower plate while the adhesive is painted on the upper and lower sides, and is automatically attached while passing through the pressing roller. On the outside, the filler is inevitably exposed to the outside between the upper plate and the lower plate, and when the non-combustible material is used as the filler, harmful ingredients such as glass powder contained in the non-combustible material are discharged to the outside through the exposed portion of the filler. There is a problem that adversely affects the health of the worker who manufactures the sandwich panel, the handler who handles the sandwich panel, or the user who uses the building using the sandwich panel, and the insulation and sound insulation performance is lowered compared to the general filler, and the factor of the price increase There is a problem.

Accordingly, there is a high demand for sandwich panels and other prefabricated building materials having improved non-combustibility, while utilizing general fillers having excellent thermal insulation and sound insulation and their manufacturing facilities, and improving the non-combustible performance.

In the related art, Patent Document 1 (10-2010-0098967A) relates to a non-combustible ceramic panel and a method for manufacturing a fireproof ceramic sandwich panel using the same. In this case, there is a problem in that the insulation and sound insulation are lowered compared to the commonly used styrofoam.

Patent Document 2 is to increase the incombustibility by placing a non-combustible material made by weaving glass fiber yarn or polyester yarn between the iron plate and styrofoam. In this case, there is an advantage in that styrofoam can be used as a general filler, but when the non-combustible material is included in a thin layer, non-combustibility is lowered.

KR 10-2010-0098967 A KR 20-0241746 Y1

An object of the present invention is to provide a method of manufacturing a prefabricated building material that can utilize the conventional fillers and facilities used in the prior art while increasing the nonflammability of the prefabricated building material through the nonflammable treatment for the filler used in the prefabricated building material.

Another object of the present invention is to provide a prefabricated building material according to the manufacturing method, the prefabricated building material is improved in water resistance, a non-flammable second grade or more in accordance with the Korean Industrial Standards by the Industrial Standardization Act to help a lot of fire safety And wider application of prefabricated building materials.

In order to achieve the above object, the manufacturing method of the non-flammable prefabricated building material according to an embodiment of the present invention is a wet step of depositing the filler in the wet solution, and the silica gel (silicate) of the filler after the wet step, the silicate 12 to 24 parts by weight of agar (garden, agar), 6 to 15 parts by weight of calcium hydroxide, 10 to 30 parts by weight of oil paint, and 10 to 30 parts by weight of heat resistant inorganic material It includes a nonflammable treatment step of impregnating the filler by impregnating a nonflammable.

The filler may be any one selected from the group consisting of styrofoam, urethane, and combinations thereof.

The wet solution may include 5 to 10% by weight of cationic surface-active agent, 10 to 40% by weight of alcohol, and 50 to 85% by weight of water.

The manufacturing method of the prefabricated building material may further include a dehydration step of dehydrating the non-flammable treated filler after the non-flammable treatment step.

The method of manufacturing the prefabricated building material may further include a filling and pressing drying step of filling, pressing, and drying the non-flammable filler between the metal plates after the non-flammable treatment step.

In the non-combustible prefabricated building material according to another embodiment of the present invention, the filler is coated with a flame retardant, the flame retardant is 100 parts by weight of silicate (silicate), 12 to 24 parts by weight of agar (寒 天, agar) relative to 100 parts by weight of the silicate 6 to 15 parts by weight of calcium hydroxide, 10 to 30 parts by weight of oil paint, and 10 to 30 parts by weight of inorganic fiber materials.

The non-combustible prefabricated building material

The filler impregnated with the nonflammable agent may be filled between the metal plates.

Hereinafter, the present invention will be described in more detail.

Method for producing a non-flammable prefabricated building material according to an embodiment of the present invention is a wet step of immersing the filler in a wet solution, and 100 parts by weight of the silicate (silicate) of the filler after the wet step, agar (100 parts by weight of the silicate) 충전 天, agar) 12 to 24 parts by weight, 6 to 15 parts by weight of calcium hydroxide, 10 to 30 parts by weight of oil paint, and 10 to 30 parts by weight of a heat-resistant inorganic material to impregnate the filler It is to include a nonflammable treatment step of nonflammable.

1 is a process chart showing a method of manufacturing a nonflammable prefabricated building material. Hereinafter, a method of manufacturing the non-combustible prefabricated building material will be described with reference to FIG. 1.

The prefabricated building material may be provided as a prefabricated building material in the form of a general panel or a filler in which a filler is placed between metal plates.

First, the filler is immersed in the wet solution to increase the wettability of the filler (S1). The wet solution reduces the surface tension on the filler so that the nonflammable on the surface of the filler can be readily absorbed between the tissues of the filler in a later stage of incombustibility.

The wet solution may include 5 to 10% by weight of cationic surfactant, 10 to 40% by weight of alcohol, and 50 to 85% by weight of water.

The cationic surfactant refers to a surfactant in which the atomic group showing the surfactant activity has a positive charge. The cationic surfactant may be any one selected from the group consisting of amine salts, tetra amonium salts, alkyl pyridinium salts, and combinations thereof. In particular, the fourth ammonium salt has a strong sterilization and disinfection power, and excellent protein precipitation effect. Therefore, it is preferable to use a quaternary ammonium salt in consideration of the properties of the filler.

When the cationic surfactant is included in the wet solution at less than 5% by weight, there is almost no dispersion and anion adsorption effect, and when it exceeds 10% by weight, it may affect the surface and the reaction of the filler.

The alcohol may be a C ₁ to C ₁₀ alcohol, preferably any one selected from the group consisting of methanol, ethanol, propanol, butanol, ethylene glycol, propylene glycol and combinations thereof. More preferably methanol or ethanol can be used. The methanol or ethanol is excellent in the volatility to improve the wettability to the filler and does not react with the filler surface.

When the alcohol is included in the wet solution in less than 10% by weight, the effect of improving the wettability of the filler is insignificant, so that the effect of improving the nonflammability in the subsequent step is lowered, and when it exceeds 40% by weight, the filler surface and reaction will be affected. Because it can.

The wet solution includes 50 to 85% by weight of water. When the water is less than 50% by weight, the content of the cationic surfactant and the alcohol is relatively increased, which affects the surface and the reaction of the filler. If the content of the cationic surfactant and alcohol is relatively reduced, the wettability-improving effect on the filler is insignificant, resulting in a decrease in the nonflammability-improving effect in subsequent steps.

Next, the non-flammable treatment step (S2) of impregnating the filler by impregnating the filler after the wetting step into the non-combustible.

The non-combustible agent used in the non-combustible treatment step, the non-combustible agent is 100 parts by weight of the silicate (silicate), 12 to 24 parts by weight of agar, calcium hydroxide 6 to about 100 parts by weight of the silicate 15 parts by weight, 10 to 30 parts by weight of oil paint, and 10 to 30 parts by weight of heat resistant inorganic material.

The silicate may be any one selected from the group consisting of sodium silicate, potassium silicate, lithium silicate, aluminum silicate, magnesium silicate and combinations thereof. In addition, preferably the silicate is SiO ₂ content of 15 to 50% by weight, it may be a liquid. In the case of using the liquid silicate having the SiO ₂ content of 15 to 50% by weight, it has excellent permeability to the filler during impregnation, and has a non-combustible and thermal insulation effect because it foams when contacted with a flame to form a fine air layer.

The agar refers to frozen dried radish, which is a coagulum of hot water extract of woodworm, 15% by weight of water, 2% by weight of protein, 3.5% by weight of ash, 0.5% by weight or less of fat, mostly polysaccharides. The polysaccharide is composed of 70% by weight of agarose, a neutral polysaccharide, and 30% by weight of agaropectin, an acidic polysaccharide. The agar is in a liquid phase at a temperature of 60 ° C. or higher and in a solid phase at a temperature lower than 40 ° C., but when the agar is added to an aqueous calcium hydroxide solution, the agar is gelled while forming a constant film without melting. This not only prevents acid from byproducts generated by contacting the silicate with water by blocking moisture that may be introduced from the outside, but also has the advantage of increasing durability and extending the life of the non-flammable filler.

Therefore, the agar and calcium hydroxide included in the nonflammable agent are gelled while forming a constant film in the filler to improve the water resistance of the filler. Therefore, when the agar is included in less than 12 parts by weight, the gelation does not proceed sufficiently, and the water resistance is lowered. If the agar content exceeds 24 parts by weight, the remaining agar remaining without reacting with calcium hydroxide becomes a foreign material, which may reduce the water resistance of the gelled membrane. have. In addition, when the calcium hydroxide is included in less than 6 parts by weight of the silicate included in the flame retardant does not proceed sufficiently gelation is lowered in water resistance, when the excess of more than 15 parts by weight of the unreacted calcium hydroxide contained in the calcium hydroxide The hydroxyl may subsequently cause a decrease in water resistance.

The oil paint refers to a coloring paint made by adding a pigment to a fatty oil such as voile oil as a colorant, and generally used to provide a waterproof film and antiseptic property by forming a solid film on wood.

The silicate is combined with moisture to produce an acid by-product, and when it is exposed to a humid place, condensation occurs. Thus, the oil paint is used to prevent the silicate from being exposed to moisture and to double the water resistance to the filler. In addition, since the oil paint has a relatively low specific gravity, the flame retardant is strongly stirred and used.

When the oil paint is used in less than 10 parts by weight relative to the nonflammable agent, there is little effect of improving the water resistance to the filler. When the oil paint is more than 30 parts by weight, the oil paint content is relatively increased, and thus the incombustibility is lowered. Since the relative specific gravity is low there is a problem that the dispersion of the composition is difficult. Preferably the oil paint may be included in 12 to 20 parts by weight. According to the said range, the water resistance of a filler is excellent and non-combustibility is not impaired.

The heat resistant inorganic material is a generic term for minerals having excellent heat resistance, water resistance and corrosion resistance. Preferably, any one selected from the group consisting of illite, perlite, fluorite, mica, and combinations thereof in powder form may be used. have. In the case of using the heat-resistant inorganic material, as well as improving the heat resistance of the prefabricated building material, there is an advantage that its life is extended by improving the water resistance and corrosion resistance. In addition, when provided as a powder, the non-combustible solution may be better adhesion to the filler.

When the heat resistant inorganic material is included in less than 10 parts by weight, the effect of improving heat resistance, water resistance and corrosion resistance is insignificant, and when it exceeds 30 parts by weight, there is a problem in that the adhesion between the nonflammable agent and the filler is rather reduced.

On the other hand, the filler may be used as long as it is a general filler used in the prefabricated building, preferably in the group consisting of styrofoam, urethane, and combinations thereof used as a filler for prefabricated building materials of various fields because of excellent sound insulation and thermal insulation Any one selected can be used.

In particular, the styrofoam may not only be used in the form of a plate-like form, but may also be used as a crushed product of the styrofoam or granulated styrofoam before molding. In the case of using the granular styrofoam, after the wetting step and the non-flammable treatment step, the sheet may be press-molded into a plate shape, or may be filled, pressed and dried between metal plates. Therefore, there is an advantage that the waste styrofoam can also be recycled, and furthermore, since a nonflammable treatment can be performed for each particle surface of the styrofoam grains, there is an advantage of higher nonflammability.

The method of manufacturing the prefabricated building material may further include a dehydration step (S4) of dehydrating the non-flammable treated filler after the nonflammable treatment step.

In the dehydration step, if the non-flammable filler is immediately dried in the non-flammable treatment step, the surface of the filler is not smoothed due to the excessive amount of the non-flammable coating on the surface of the filler. Due to the difference in hardness may cause a problem that the durability of the filler is lowered. Therefore, the method of manufacturing the non-combustible prefabricated building material may further include a dehydration step, and the dehydration method performed in the dehydration step may be any general dehydration method that may be used in the art, and preferably the non-combustible Lifting the filler after the treatment step may be used to remove the excess flame retardant remaining on the surface of the filler by gravity, in which case the dehydration step may be performed while rotating the filler. According to the method, it is possible to remove the excess nonflammable agent on the surface of the filler so as to prevent its durability while maintaining the nonflammability of the filler.

The non-flammable filler can be used as a prefabricated building material by itself as a drying step.

In addition, the method of manufacturing the prefabricated building material may further include a filling and pressing drying step (S4) of filling, pressing and drying the non-flammable filler between the metal plates after the non-flammable treatment step.

The pressing and drying step is to produce a panel-shaped prefabricated building material, the pressing and drying method may be any of the general pressing and drying methods that can be used in the art.

On the other hand, the drying step or the pressing and drying step may be to dry while rotating the prefabricated building material of the filler or panel form. By the rotation, the oil paint layer is formed on the silicate layer due to the difference in specific gravity of the silicate and the oil paint to prevent the reaction between the silicate and the water to prevent whitening and the like, and to extend the life of the prefabricated building material. There is this.

The non-combustible prefabricated building material according to the manufacturing method of the non-combustible prefabricated building material according to the present invention does not have self-combustion even at a high temperature of 1000 ° C. or more even if it is treated with nonflammable, and there is no problem of generating toxic gas due to combustion of the filler with excellent nonflammability. Therefore, it can greatly help fire safety and provide a wider range of application of prefabricated building materials.

In addition, the non-combustible prefabricated building material according to the manufacturing method of the non-combustible prefabricated building material has no whitening phenomenon and has various effects such as moisture proofing and rust prevention.

1 is a process chart showing a method for manufacturing a non-flammable prefabricated building material according to the present invention.
Figure 2 is a photograph showing the results of the combustion test of the non-combustible prefabricated building material according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

[ Manufacturing example  1: Preparation of Wet Solution]

Wet solutions A1 to A4 were prepared according to the composition shown in Table 1 below.

A1 A2 A3 A4 Cationic surfactant ^{1 )} - 5 10 20 Alcohol ^{2 )} 50 10 30 50 water 50 85 60 30

(Unit: wt%)

1) Cationic Surfactant: tetra amonium salt.

2) Alcohol: Methanol (at least 95% by weight methanol).

[ Manufacturing example  2: Preparation of Flame Retardant]

According to the composition shown in Table 1 below to prepare a nonflammable B1 to B6.

B1 B2 B3 B4 B5 B6 Silicate ^{1 )} 100 100 100 100 100 100 Agar - 20 15 16 20 30 Calcium hydroxide - 20 6 10 10 40 Oil paint - 40 10 20 30 60 Heat-resistant minerals ^{2 )} - 40 10 20 30 60

(Unit: parts by weight)

1) Silicate: Liquid sodium silicate with specific gravity of 1.6 to 1.7 and SiO ₂ content of 34 to 38% by weight.

2) Heat resistant inorganic: illite powder.

[ Manufacturing example  3: Manufacture of non-flammable prefabricated building materials]

Using the wet solution and a nonflammable agent, a nonflammable prefabricated building material according to Examples, Comparative Examples, and Reference Examples as shown in Table 2 below was prepared. The non-combustible prefabricated building material according to the above Examples and Comparative Examples followed the manufacturing method of the non-combustible prefabricated building material including a wet step and a nonflammable treatment step, and was manufactured in a panel form.

Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Wetting Step A1 A2 A3 A4 A2 A2 - A2 A2 A2 Nonflammable Treatment Step B4 B4 B4 B4 B3 B5 B4 B1 B2 B6

In addition, in order to confirm the effect according to the manufacturing method was prepared by the reference example 1, prefabricated building material using glass wool as a reference example 2 as a prefabricated building material using styrofoam as a filler not according to the manufacturing method of the prefabricated building material.

[ Experimental Example : Combustion test on manufactured prefabricated building materials]

Combustion test, water resistance and strength test were carried out on the non-combustible prefabricated building materials manufactured according to the above Examples, Comparative Examples and Reference Examples.

The combustion test was the time to peak heat release rate said total heat release less than 10 minutes for the 8MJ / m ² depending on the cone calorie metric for 10 minutes in excess of 200kw / m ² to 10 seconds. Sensory evaluation of the results of the combustion test was performed by dividing the surface combustion, smoke generation, mass reduction rate and self-burning rate by dividing it into a grade of 1 to 10. The higher the value, the better the nonflammability.

The water resistance test is hot air dried prefabricated building materials according to Examples, Comparative Examples and Reference Examples, left for 10 hours at 25 ℃, humidity 85% by weight, and divided the water content for each prefabricated building materials into a grade of 1 to 10 Evaluated. The higher the numerical value, the better the water resistance.

In the strength test, the moisture content of the prefabricated building material according to Examples, Comparative Examples, and Reference Examples was adjusted to 14.5 wt%, and a compression test was conducted. The higher the value, the higher the grade.

Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Reference Example 1 Reference Example 2 nonflammable 7 10 8 8 8 8 5 7 7 8 One 10 Water resistance 7 10 7 8 6 9 5 3 7 6 One 6 Strength test 8 10 8 8 8 9 4 6 6 7 2 7

Referring to Table 4, when the wetting step is not performed (Comparative Example 1), it is understood that the nonflammable material is not sufficiently absorbed by the filler, and thus the nonflammability and water resistance are lowered, and the strength is also lowered.

2 is a photograph showing a combustion test result for a non-combustible prefabricated building material according to an embodiment of the present invention. When confirming the embodiment according to the present invention of Figure 2 and Table 4, Examples 1 to 6 is excellent in non-flammability, water resistance and strength, in particular, in the case of Example 2 it is seen that evenly excellent in non-flammability, water resistance and strength Can be.

Comparative Examples 2 to 4 are those using the wet solution having the most excellent effect in Examples 1 to 4, when using a nonflammable agent that is beyond the scope of the present invention, the use of the wet solution is excellent in permeability, but nonflammable and Since the heat shielding effect is inferior, it can be seen that the incombustibility, water resistance and strength of the prefabricated building material are reduced.

Reference Example 1 is a non-flammable general prefabricated building material was very low inflammability and water resistance, the strength is also very low, and Reference Example 2 is a glass wool used as a non-flammable prefabricated building material as a filler, but excellent heat resistance It can be seen that it is disadvantageous in water resistance and strength.

Therefore, according to the embodiment it can be seen that it is possible to improve the heat resistance while increasing the heat insulation and sound insulation using a common filler.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

Claims (7)

A wetting step of dipping the filler in the wetting solution, and
Filling material after the wetting step
100 parts by weight of the silicate (silicate), based on 100 parts by weight of the silicate
12 to 24 parts by weight of agar (寒 天, agar),
6-15 parts by weight of calcium hydroxide,
10 to 30 parts by weight of oil paint, and
A nonflammable treatment step of impregnating the filler by impregnating a nonflammable agent including 10 to 30 parts by weight of heat resistant inorganic material.
Method for producing a non-flammable prefabricated building material comprising a. The method of claim 1,
Wherein the filler is any one selected from the group consisting of styrofoam, urethane, and combinations thereof. The method of claim 1,
The wet solution is 5 to 10% by weight cationic surface-active agent (cationic surface-active agent), 10 to 40% by weight of alcohol, and 50 to 85% by weight of water to produce a non-combustible prefabricated building material. The method of claim 1,
The method of manufacturing a prefabricated building material further comprises a dehydration step of dewatering the nonflammable filler after the nonflammable treatment step. The method of claim 1,
The manufacturing method of the prefabricated building material further comprises a filling and pressing drying step of filling, pressing and drying the non-flammable filler between the metal plate after the non-flammable treatment step. The filler is impregnated with a flame retardant, coated,
The flame retardant is 100 parts by weight of silicate (silicate), 12 to 24 parts by weight of agar (garden, agar) 6 to 15 parts by weight of calcium hydroxide, 10 to 10 parts by weight of oil paint (oil paint) A non-flammable prefabricated building material comprising 30 parts by weight, and 10 to 30 parts by weight of inorganic fiber materials. The method of claim 6,
The non-combustible prefabricated building material
The non-combustible prefabricated building material in which the filler impregnated with the flame retardant is filled between the metal plates.

Images