KR20100074535A - The interior materials to protect smoke - Google Patents

Abstract

PURPOSE: An interior material with excellent flame retardancy is provided to improve durability of the material by spreading a ceramic sealer layer on the uppermost material and to prevent a bottom plate from becoming wrinkled. CONSTITUTION: An interior material with excellent flame retardancy comprises a base layer(20-2), a glass fiber layer(40), an upper layer(20-1), and a ceramic sealer(30). The base layer is formed by mixing and hardening acrylic resin and dolomite. The glass fiber layer is formed on the top of the base layer. The upper layer is formed by mixing and hardening silica, dolomite, mica, acryl resin, and additive and is formed on the glass fiber layer. The ceramic sealer is spread on the top of the upper layer to improve durability.

Description

Highly flame retardant interior materials {The interior materials to protect smoke}

The present invention relates to an interior material that emphasizes the flame retardancy of the floor plate for the interior or the wall plate for the interior wall. In particular, it relates to a highly flame-retardant interior material formed by forming a multi-layered interior material, the high flame retardant dolomite is added to the base layer and the upper layer, and when the flame is fired by using acrylic resin as a solid binder, the effect of flame retardancy is improved and durability is improved. .

In general, the interior materials such as the present invention is making a quantum leap these days. The emergence of various flooring materials and the change of wallpaper on the wall, etc., all make for easier construction, and are emerging as developments that can emphasize aesthetics. In particular, in recent years, there has been an attempt to reduce the release of carcinogens from interior materials, and at the same time, interior materials have been developed that eliminate the occurrence of special harmful gases even in the event of a fire. Of course, the government has also emphasized the flame retardancy, the trend of controlling the development of the product in a way that restricts the construction of a product that has a slight degree of flame retardant effect.

By the way, in the case of such a flooring in the prior art, there are many products with high problems in use as well as the government's policy will be described for this problem.

In other words, as shown in Figure 1, the conventional flooring material is a flooring material of the form that is combined with a multi-layered floor plate from the lower layer (2-2), glass fiber (3), upper PVC layer (2-1) ), Consisting of a stone layer (1) containing silica. The PVC substrate 2-2 is formed to achieve an adhesive bond with the bottom, and the glass fiber layer 3 formed thereon to control thermal expansion with other layers. In addition, in FIG. 1, the upper PVC layer 2-1 and the stone-sliding layer 1 including the silica sand remain in a bonded state, but a product having a form of a separate glass fiber layer 3 therebetween. Prevail The glass fibers are combined with each other to compensate for the difference in thermal expansion with temperature.

However, the following problems are occurring in the case of the conventional flooring. That is, in the case of the PVC base 2-2 and the upper PVC layer 2-1, since the material is PVC, a fire is generated, and a large amount of harmful gas is generated. In addition, the thermal expansion coefficient between the PVC material and the stone material layer (1) is different from each other when the frequent changes in temperature, the volume of each other is changed to a crying shape on one side. Of course, in order to compensate for this, a separate glass fiber (3) is filled in between, but this was not a complete complement. Moreover, although the effect of some buffering can be acquired by the glass fiber layer 3, the problem that a bottom plate is torn is also shown.

In addition, it is common to use emalone as a silica sand and a binder as a component for forming the stone fumed layer (1). In the case of this emalon, many harmful substances are generated when fire occurs, which is used as an interior preparation. There was a lot.

The present invention relates to an interior material that emphasizes the flame retardancy of the floor plate or interior wall wall for interior, the interior material is formed in a multi-layer, adding a high flame retardant dolomite to the base layer and the upper layer and using acrylic resin as a solid binder In this case, a high flame retardant effect is to provide a highly flame-retardant interior material with improved durability.

The high flame retardant interior material of the present invention, the base layer 20-2 which is a layer cured by mixing acrylic resin and dolomite inside; A glass fiber layer 40 formed on the base layer 20-2; The upper part of the glass fiber layer 40 is composed of a silica sand, dolomite, mica, acrylic resins and additives mixed with a hardened upper layer (20-1).

In the highly flame retardant interior according to the present invention, the base layer (20-2), 60-90% dolomite, 0.1-1% texanol, 3-20% acrylic resin and 1-5% additives added by weight By stirring; The upper layer 20-1, 5-60% of silica sand, 0.1-1% of texanol, 50-80% of dolomite, 5-20% of mica, 3-20% of acrylic resin and 1-5% of additives are mixed. To cure; The upper portion of the upper layer 20-1 includes a ceramic sealer 30 is coated to improve its durability.

In the highly flame retardant interior material according to the present invention, the additive is selected by mixing at least one of a silver solution, a dispersant, a thickener; The glass fiber layer 40 is formed by impregnating a flame retardant; The silica sand is configured to include a variety of color coated with the color silica sand.

And in the highly flame retardant interior according to the invention, the base layer (20-2) and the upper layer (20-1), 1-10 parts by weight of the PS ball is added to all the components added to form a layer; The base layer 20-2 and the upper layer 20-1 may be formed by adding one to five parts by weight of all the components by selectively adopting at least one of a heat mineral mineral, elvan, aluminum hydroxide and magnesium hydroxide. It is configured to include.

According to the present invention, the degree of thermal expansion between the base layer and the upper layer is uniformly improved due to the interior material that impairs the conventional numerical stability over time to improve aesthetics, and to prevent the phenomenon of part of the bottom plate crying and twisting. There is a big advantage.

In addition, according to the present invention, the ceramic sealer layer is applied to the top to enhance its durability, and there is an advantage of preventing the phenomenon of being easily scratched or torn.

In addition, according to the present invention, since all the added components are added to the components that do not emit gas and smoke even when burned in the fire has the advantage of high durability and high flame retardant effect.

In addition, according to the present invention, the emission of far-infrared radiation through the mineral earth, elvan, and has a high numerical stability, even when used as a flooring in the home has the advantage that the effect is high.

The present invention relates to an interior material attached to a bottom plate or an inner wall.

Therefore, the configuration and operation of the present invention will be described in detail with the [Fig. 2] and [Fig. 3] shown.

As shown in the present invention, there is a base layer 20-2 which is a layer cured by mixing acrylic resin and dolomite, and there is a glass fiber layer 40 formed on top of the base layer 20-2. On top of the glass fiber layer 40, there is an upper layer 20-1 hardened by mixing silica sand, dolomite, mica, acrylic resin and additives. Therefore, they combine to improve flame retardancy and dimensional stability as flooring or interior materials. That is, the present invention is largely composed of three layers. That is, the lower layer is composed of the base layer 20-2, the glass fiber layer 40, and the upper layer 20-1. The base layer 20-2 is a layer which is interviewed with the floor or the wall, and is usually combined with the floor or the wall by means of adhesive or the like during construction. The glass fiber layer 40 is formed on the upper portion, and the upper layer 20-1 shown on the upper portion is formed. Therefore, the structural features of each layer of the present invention will be described in detail.

First, in the present invention, the biggest problem is to solve the problem that the numerical stability was insufficient due to different levels of thermal expansion due to temperature change, which is a problem that has been generated in the conventional bottom plate. As a result, in the present invention, both the base layer 20-2 and the upper layer 20-1 are formed of the same material to ensure numerical stability. First, in the case of the base layer 20-2, an acrylic resin is added as a binder to the constituent in which the dolomite is mixed, and thus produced. More specifically, the dough is mixed with a dolomite mixed with the acrylic resin on the upper portion of the glass fiber layer 40 moving in the conveying conveyor to form a bottom plate by curing and cutting at a high temperature. And, in the case of the upper layer 20-1, the silica sand, dolomite, mica, acrylic resin and additives are mixed and thinly spread on the glass fiber layer 40 moving on the transport conveyor as described above to harden the upper layer 20-1. To get. 3, the glass fiber layer 40 of the base layer 20-2 and the glass fiber layer 40 of the upper layer 20-1 are combined to form the base layer 20-2 and the upper layer 20-1. ) To produce a combination of interior materials.

In this case, the base layer 20-2 is a layer bonded to the bottom or the wall by an adhesive. In addition, the glass fiber layer 40 formed in the middle of the present invention, in fact, the purpose of preventing the phenomenon that the interior material is distorted by compensating for the difference in the coefficient of thermal expansion between each layer, which is its conventional characteristics, but each layer separately It is intended to be easy to manufacture, it is put between the layer and the layer serves to cushion the impact somewhat, while at the same time serves to improve the more durable durability. In addition, the upper layer (20-1) is a layer in structural contact with the outside air has the effects of non-combustible and flame retardant. Of course, the silica sand, dolomite, mica, acrylic resin and additives introduced therefor are generally made of materials having a high flame retardant and nonflammable effect.

Then look at the components of the present invention in more detail.

<Dolomite>

In the present invention, the base layer 20-2 is a layer in which 60-90% of dolomite, 0.1-1% of texanol, 3-20% of acrylic resin and 1-5% of an additive are added and stirred. That is, the dolomite constituting the base layer is also called dolomite and gray stone. The chemical composition is CaMg (CO ₃ ) ₂ , and lime carbonate and magnesium carbonate form 1: 1 bicarbonate. However, a part of magnesium is often substituted with iron or manganese, it shows a rhombus crystal, the crystal surface is somewhat curved, and often forms a saddle shape or rose bud shape. In some cases, they are formed into granules or aggregates of dense matter.

Hardness is 3.5 to 4, specific gravity is 2.8 to 2.9, and there is a complete split in the rhombus direction. White, gray or pink, yellow, brown, etc., sometimes green, transparent or translucent, with glass gloss. Crystals are sometimes pearl-gloss, similar to calcite but slightly heavy and diluted with dilute hydrochloric acid. Weaker than calcite. Some of the calcite constituting the limestone is dolomite, but only a part is dolomite. Some of the limestone dolomite is called dolomite limestone.

More than 80% of domestic limestone resources are known to be present in the limestone layer and are found to be distributed in a wide area throughout Chungbuk and Gangwon. The main distribution sites are Samcheok, Threshold, Pyeongchang, Jeongseon, and Gangneung in the north, and Danyang, Okdong, and Taebaek in the south. The southwestern end of the limestone layer is bordered by the so-called Okcheon system in Mungyeong, Hamchang, Chungju and Goesan, and the east side extends to the east coast of Gangwon. Although it is located at a great distance from these regions, the Hupori Formation of Gyeongsangbuk-do and the Yeongdong region of Chungnam, which are known to have been produced during the geological period from Cambria to Odobis, are also classified as Korean Limestone. . The thickness of the limestone layer is estimated to be more than 1,200m, although there are some differences in the region, and the change of sedimentary environment is considered to be severe due to the inclusion of quartzite, shale, dolomite and dolomite limestone layer in the layer. Since the limestone layer is a layer formed in meat, it is mostly crystallized due to recrystallization under the influence of preterm labor movement in the Korean peninsula. In particular, limestone silicate is formed in the periphery of the limestone layer due to the influence of intrusive rock caused by the Jurassic and Cretaceous igneous activities.

The dolomite of the present invention is added to the present invention to expand the properties of the flame retardant according to its unique mineral properties, and the unit price is low, resulting in an additional effect of reducing the manufacturing cost.

<Texanol>

Next, texanol serves to form a film. That is, in the present invention, a large amount and a large amount of minerals are mixed and impregnated with the binder. However, these minerals and binders sometimes do not have a firm bond with each other. Therefore, in this invention, in order to remove such a point, a texanol is added. The texanol also has a property of forming a film by rising to the upper side when mixed, so that it is coated with a dolomite that can feel a rough texture as a mineral so that it can feel a softer texture and prevents it from falling out of the binder. Play a role.

<Acrylic resin>

Acrylic resin is one kind of synthetic resin, and it has strong internal combustion, water resistance, acid resistance, alkali resistance and oil resistance, and is used for electrical insulating materials, safety glass, synthetic rubber and the like. In particular, it refers to a polymer from an ester such as acrylic acid or methacrylic acid, and a polymer of methyl methacrylate (methyl methacrylate) is typical, which is colorless and transparent, and light, especially ultraviolet rays, is better transmitted than ordinary glass (refractive index 1.49). . It does not discolor when exposed to the outdoors, its chemical resistance is good, and its flame resistance, electrical insulation and water resistance are all good. Colored acrylic resins are suitable for decorative purposes such as doors. Handle with care as scratches are easily visible and dusty.

Therefore, when the plate is made using this acrylic resin, the plate is used for special window glass, lighting device cover, vehicle glass, optical machine prism, filter, watch glass, etc., having an excellent transparency and being more than 10 cm thick. In medical relations, most of contact lenses and dentures are made of this resin. In addition, acrylic acid, its methyl ester and ethyl ester polymers and hybrid polymers are important as fibers and paper processing, especially as a new paint and adhesive. It is also widely used for windshield glass of aircraft and automobiles, building materials and lighting. It has more transparency than glass and is easy to process. It is about half the weight of ordinary glass, and it is also called organic glass because it is strong in water, acid and alkali although it is small in strength, firmness and heat resistance. Colored acrylic resins are suitable for decorative purposes such as doors. Handle with care as scratches are easily visible and dusty.

Therefore, when the interior material is manufactured using the acrylic resin of the present invention, smoke does not occur even if a fire is caught, which can protect the lives of residents and improve durability.

 And, in the case of additives, each will be described in detail individually below.

In the present invention, the upper layer 20-1, by weight ratio of silica sand 5-60%, texanol 0.1-1%, dolomite 50-80%, mica 5-20%, acrylic resin 3-20% and additives 1-5 It is preferable that% mixes and hardens. That is, the acrylic resin used as the binder is the same as the base layer 20-2, but there is a difference that silica sand, mica and the like are added. In the case of the silica sand, since the effect of the flame retardant as a mineral material is already well known through the conventional invention, so a separate description will be avoided. However, in the case of mica, which is not described in comparison with the base layer 20-2 in the upper layer 20-1 of the present invention, the physical properties thereof will be described in detail.

<Mica>

Also called mica scales. It has a layered structure and usually forms a hexagonal plate crystal. They also form impressions, fibrous and columnar, which have a complete split at the bottom and are very thin. Among the minerals, the most complete cleavage, the cleavage is more elastic.

The chemical composition is so complex that it is a layered silicate mineral with the formula X ₂ Y ₄ ˜6Z ₈ O ₂ (OH, F) ₄ . X = K, Na, Ca, 12 coordination, Y = Fe, Mg, Al, Ti, Li, 6 coordination, Z = Si, Al, 4 coordination. Hardness 2.5-4, specific gravity 2.75-3.2. The cleavage is complete in one direction. Yellow, brown, green, etc., black gloss. Depending on the ingredients and other properties, they are roughly classified into muscovite, cattle down, biotite, gold mica, red mica, and Jindite.

Due to their different uses, dolomite has strong fire resistance and is a nonconductor of electricity, so it is used for electric insulators, fire retardants, especially windows for stoves, and the powder is shiny with silver white, so it is used as gold and silver teeth. Gold mica is also of good quality, as is the case with dolomite, biotite has a lot of iron, so it is less valuable. Mica-Jindite is used as an ore because it contains lithium.

As a result, injecting such mica in the present invention, heat resistance and flame resistance is enhanced, and durability is improved. In other words, the fire is not well, but even if the fire is to minimize the occurrence of smoke to protect lives, and serves to strengthen the durability and strength.

By the way, the interior material of the present invention is bonded to the bottom to form a bottom plate, bonded to the inner wall surface to form a wall surface. Therefore, it should be more aesthetically pleasing and not scratched. In some cases, the floor coverings are covered with floorboards, and the upper layer may be torn through friction with heavy loads, and the color may fade yellow due to the high temperature of the cigarette butts. Therefore, in the present invention, to solve this problem, as shown in FIGS. 2 and 3, the ceramic sealer layer 30 is formed on the top of the upper layer 20-1. That is, the ceramic sealer 30 is coated on the upper layer 20-1 to improve durability. That is, a thin film is formed by coating a ceramic sealer on the upper layer 20-1 by spraying or applying. The ceramic sealer layer 30 has a more rigid hardness, less scratching through a knife or a sharp nail, and also has a high heat resistance according to the temperature. Therefore, the surface coating of the interior material will bring the optimum effect.

For easier explanation of the present invention, the physical properties of the ceramic sealer will be described in detail.

<Ceramic sealer>

Ceramic sealer is a breakthrough inorganic material that improves strength, water resistance, antifouling and abrasion resistance by penetrating into and reacting with porous materials, concrete products, calcium silicate plates and gypsum products. This is applied to floors, sidewalks, parking lots, swimming pools, blocks, lakes, gypsum boards, etc., due to its unique features such as wear resistance, water penetration prevention, appearance improvement, acid rain, crack prevention, chemical resistance improvement, and antifouling properties. Its use is expanding.

In the case of the ceramic sealer, a glass material is formed on the infiltration part and the surface of the concrete by infiltrating the concrete with an aqueous solution containing alkali silicate as a main component and reacting with Ca, Mg and Al of the concrete. Since this glass component fills the concrete space and forms a film on the surface, strength, surface hardness, and waterproofness are improved. In the present invention is coated on the top of the flooring to improve its durability. The construction of this ceramic sealer is performed by stirring the ceramic sealer stock solution with water in a 1: 1 ratio and burying it in a roller and applying it to the flooring material or spraying it.

If only the main effect is selected and explained among the various effects of the ceramic sealer, the calcium silicate formed by the ceramic sealer is nonflammable and no harmful gas is produced even in case of fire. Eco-friendly and harmless to human body. In addition, it is strong at low temperatures, and has excellent effects in its non-combustibility, durability, flame retardancy, and abrasion resistance even in a frozen warehouse. In particular, it has a high dustproof effect and does not get dirty easily. The ceramic sealer treatment makes the surface of the concrete or base plate dense and can be easily removed even if the traces of tires and shoe traces remain.

As a result, when the ceramic sealer of the present invention is sprayed or coated on the upper layer 20-1 and coated, the ceramic sealer can be prevented from being scratched or torn by bringing a strong resistance to friction with a bump surface.

Next, the structure of the additive added in the present invention will be described in more detail.

That is, in the present invention, in the case of the base layer 20-2 and the upper layer 20-1, separate additives are added to have more stable physical properties, and the additives may be selectively selected from one or more of silver solutions, dispersants, and thickeners. Can be adopted and mixed. In more detail, the amount may be added in an amount of about 0.1-1 parts by weight based on the sum of the components forming the base layer 20-2 and the upper layer 20-1. In the case of the silver solution, it is put into the effect of sterilization and sterilization, and sometimes prevent the parasitic of harmful bacteria or ticks that can survive between the bottom plate and the bottom surface and the bottom surface and the wall surface of the base layer (20-2) Play a role. In addition, in the case of the dispersant, each of the components added together is easily mixed and serves to maintain the state with an appropriate distribution. In addition, thickeners are added to prevent sedimentation of the mineral dolomite and to maintain an appropriate viscosity. An important reason for achieving this viscosity is that if too soft, there is a possibility of flowing down during the manufacture of the layer, if too many minerals in the thick state, there is no manufacturing and there is a lot of voids, which leads to water tightness. Therefore, it is put in order to control this problem.

Meanwhile, in the present invention, the glass fiber layer 40 is formed between the base layer 20-2 and the upper layer 20-1. In other words, the glass fiber layer 40 is formed by impregnating a flame retardant. In the case of glass fiber, if there is a fire, there is a possibility of releasing some smoke, impregnating a flame retardant to eliminate this problem. In addition, it is preferable that all the above-mentioned silica sand is coated with a variety of colors to be introduced into the color silica sand. That is, in the present invention used as interior materials, it is preferable to feel aesthetical neatness, and to give aesthetics, thus giving color.

In addition, in the case of the present invention, it is preferable to further inject 1-10 parts by weight of PS balls relative to all the components put into the base layer (20-2) and the upper layer (20-1) to form a layer. That is, in addition to the dolomite, texanol, acrylic resin and additives of the base layer 20-2 to be added together, PS balls are added as a role similar to the dolomite. And also in the case of the upper layer is added to the PS ball as a role similar to the dolomite, silica sand, mica in addition to the silica sand, texanol, dolomite, mica, acrylic resin and additives. The PS ball, which is metallic and coated in various colors on its outer surface, will be distributed in each layer to improve its durability and to enhance flame resistance and heat resistance.

For reference, this PS ball is briefly described. This PS ball is a new pollution-free material that recovers molten slag generated during the steelmaking process, sprays it with a suitable wind pressure and water, cools it, and then converts it into a stable structure. PS ball is a harmless product recognized by the Ministry of Environment. Second PS ball manufactured by existing steelmaking slug is classified as industrial waste. Minimize the possibility of environmental pollution due to peeling. Therefore, it is an optimal choice to be utilized as aggregate in the slip prevention road as in the present invention. Its physical properties include the included iron compounds Ca, SiO ₂ Since the back has a high degree of heat, it can be put into interior materials for the best effect.

Furthermore, in the case of the present invention, the base layer 20-2 and the upper layer 20-1, which have already been described above, selectively adopts at least one of the Hito-earth mineral powder, ganban stone, aluminum hydroxide and magnesium hydroxide, and thus, compared with all components. Forming by adding 5 parts by weight expanded the function of the flame retardant flame retardant, and further improved the effect of preventing the occurrence of sick house syndrome, such as formaldehyde release.

Here, the powder of the Hi-to-mineral mineral is a product that is sold in the existing market by adding a finely pulverized state such as flour, and in the present invention, SWC-150 was added. This SWC-150 is a complete mineral, a pure mineral that eliminates chemical bonds with synthetic resins. When only the pulverized mineral of the earth is inserted into the flooring of the present invention, far infrared rays are generated, and a beneficial effect is generated accordingly. In addition, it is also possible to use elvan powder to perform the same role, aluminum hydroxide and magnesium hydroxide plays a role of improving the function of flame retardant and flame retardant.

Then look at the physical properties of the aluminum hydroxide and magnesium hydroxide. Aluminum hydroxide is represented by the chemical formula Al (OH) ₃ . Specific gravity 2.423. It exists naturally as a gibbsite diaspore, and when ammonia water is added to the aqueous solution of an aluminum salt, it arises as a white colloidal precipitation. When heated, it loses one molecule of water at 300 ° C, is an amphoteric hydroxide, reacts with alkali to form aluminate, and reacts with acid to form its salt. Gels after prolonged contact with water. It is used as an adsorbent, ion exchanger, chromatographic fixer, raw material for aluminum oxide, weight of paper, and also as an additive for manufacturing tarpaulin as it becomes more waterproof when filled in fiber. .

In addition, magnesium hydroxide is a chemical formula Mg (OH) ₂ . Specific gravity is 2.4. When heated to 100 ° C., it can be dried while being magnesium hydroxide, but when it is heated above, it becomes magnesium oxide MgO while releasing water. Mg (OH) ² → MgO + H ² O Almost insoluble in water, but dissolved in dilute acid, aqueous ammonium salt solution, and the like. The aqueous solution shows alkalinity. When the solid is left in the air, carbon dioxide is absorbed to form magnesium carbonate. It exists as a natural stone in nature, and when alkali hydroxide acts on magnesium salt, it forms as a colorless colloidal precipitate. Used as medicines such as laxatives and antacids.

The aluminum hydroxide and magnesium hydroxide of the present invention have solved the problem of generating a large amount of toxic and harmful gases during the manufacture of an emulsified product or a flame generated from a conventional flame retardant, and the parallel use of halogen compounds and antimony oxide, which are generally used, By handling a lot of halogen gas during self-toxicity and combustion when handling, it solved all problems such as human hazard and corrosion of equipment. In other words, aluminum hydroxide and magnesium hydroxide are metal hydroxide flame retardants which solve these disadvantages, and are environmentally friendly flame retardants having no toxic gas and excellent non-toxicity and harmlessness that suppress smoke generation.

Then look at the test report of the flame retardant and flame retardant experiments through the fire proofing work with the bottom plate of the present invention. As shown in FIG. 4, it was investigated that there was no generation of smoke through the heating for 20 seconds, and the carbonization length was investigated in a significantly shorter form than that of other products. The effect seems to be superior, and other experiments have shown that it is superior to other products in terms of numerical stability due to temperature changes.

1 is a view showing a conventional general bottom plate, '

2 is a perspective view of the bottom plate and the inner wall of the present invention, a cross-sectional view thereof,

3 is a view showing a method of manufacturing the interior material of the present invention,

Figure 4 is a test report of the flame retardant experiment of the interior material according to the present invention.

<Brief description of the major symbols in the drawing shown>

20-1; Base layer 20-2; Upper layer

30; Ceramic sealer 40; Grass fiber layer

Claims (9)

In the interior material attached to the bottom plate or the inner wall, A base layer 20-2 which is a layer cured by mixing acrylic resin and dolomite therein; A glass fiber layer 40 formed on the base layer 20-2; Highly flame retardant interior material, characterized by improved flame retardancy and dimensional stability by consisting of the upper layer (20-1) is hardened by mixing the silica sand, dolomite, mica, acrylic resin and additives to the upper portion of the glass fiber layer (40). The method according to claim 1, The base layer 20-2, A highly flame-retardant interior material, characterized in that the layer is stirred by adding 60-90% of dolomite, 0.1-1% of texanol, 3-20% of acrylic resin, and 1-5% of an additive. The method according to claim 1, The upper layer 20-1, Flame retardancy characterized by curing by mixing 60 to 60% silica sand, 0.1-1% texanol, 50-80% dolomite, 5-20% mica, 3-20% acrylic resin and 1-5% additives High interior materials. The method according to any one of claims 1 to 3, A high flame retardant interior material, characterized in that to improve the durability by applying a ceramic sealer (ceramicsealer; 30) to the top of the upper layer (20-1). The method according to any one of claims 1 to 3, The additive, A highly flame-retardant interior material, characterized in that at least one of a silver solution, a dispersant, and a thickener may be selectively selected and mixed. The method according to claim 1, The glass fiber layer 40, A highly flame retardant interior material characterized by forming a layer by impregnating a flame retardant. The method according to claim 1, The silica sand, Highly flame retardant interior material, characterized in that the coating is coated with a variety of colors into a color silica sand. The method according to claim 2 or 3, In the base layer 20-2 and the upper layer 20-1, Highly flame retardant interior material, characterized in that to form a layer by adding more than 1-10 parts by weight of the PS ball compared to all the injected components. The method according to claim 1, In the base layer 20-2 and the upper layer 20-1, A highly flame-retardant interior material, characterized in that by selectively adopting at least one of the heat mineral mineral, elvan, aluminum hydroxide and magnesium hydroxide by adding 1-5 parts by weight relative to all the components.

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