KR20180031544A - Activated charcoal slurry preventing radon gas for building and its forming products - Google Patents

Abstract

The present invention relates to a method for manufacturing flame-retardant activated carbon slurry for adsorbing radon gas and a molded product thereof, which not only can capture radon gas coming out from the ground or concrete buildings and construction materials to a room, but also adsorb various harmful gases generated indoor by using activated carbon powder or charcoal powder to manufacture activated carbon powder slurry instead of manufacturing a plate-like material manufactured by the conventional heat-pressure method of high temperature and high pressure. The slurry can be applied like mortar to buildings; can be processed with spray or blow-in methods so that the slurry can be hardened to have a thick layer at room temperature; can be put into a mold frame to be molded so as to be used with the mold frame or to be used with only activated carbon molded products after removing the mold frame or inserting materials to adsorb the radon gas as a wall or a ceiling.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a flame retardant activated carbon slurry for adsorbing lardon gas,

The present invention relates to a technology for reducing indoor lard gas by adsorbing lardon gas from a building ground or a concrete building itself and a building material inside a building including a multipurpose facility, A thick flame-retardant activated carbon layer that forms a wall layer or a ceiling surface layer by thickening it on a building wall, a ceiling or a back surface of a finishing material is used as a flame retardant which absorbs odor and volatile organic compounds emitted in the air of the room and indoor air, Activated carbon slurry and a molded product thereof.

Radon gas, a primary carcinogen that causes lung cancer, is released in its natural state and is a very dangerous radioactive gas to the human body that can not be seen or smell. These lagoons come from building materials such as concrete, gravel, gypsum board, etc., which flow into buildings through the gaps of buildings from the ground of the buildings inside the buildings including the multi-use facilities. Therefore, the US EPA (Environmental Protection Agency) recommends attaching radon measurements during home sales. In order to reduce the indoor radon concentration to the present, firstly, the facility equipped with the exhaust fan or the suction fan is used to volatilize the concentrated lardon gas in the room to forcibly lower the concentration or to open the window periodically to directly And a method of reducing the ventilation system. Second, a method of filling a crack or a gap in a building with a sealing agent or coating a surface of a building material with a general paint or a radon emission preventing paint (Patent Document 1: KR 0920138 B1, Patent Document 2: KR 0977707 B1). Third, it is a method of adsorbing radon in the room using activated charcoal or charcoal. The first fan ventilation system or the direct ventilation system has a disadvantage in that the filter needs to be replaced periodically when the outdoor dust is introduced or the filter is used and the energy consumption for the summer air conditioner and the winter heating increases greatly do. The coating method of the second type sealing agent or coating material has a coating film thickness of 780 μm on the wall surface of Patent Document 1 and a thick coating film thickness of 3150 μm on the bottom surface of Patent Document 2. However, since the alpha particles produced during the radon collapse do not pass through a single sheet of paper, the methods of Patent Document 1 and Patent Document 2, in which an inorganic material other than activated carbon is added, naturally block radon. It can be covered well with ordinary paints such as urethane resin and epoxy resin. However, there are very small gaps due to various reasons such as contact, impact, abrasion, repair, and earthquake during the use of the building. It is extremely difficult to find them even if there are fine cracks or cracks. Especially, It is already well known that the radon problem is fundamentally very difficult to solve by the method of coating the paint.

The third method is to block radon gas path by adsorbing radon by using activated charcoal or charcoal. As a method of using granular or powdered powder until now, it is used as a board product by compression molding at high temperature and high pressure, There are two known ways to use as a composite board reinforced with materials. The former has been used for cleaning indoor air for a long time and is used to put charcoal powder in a bag under a floor or a living room or to put it in a wall. In order to prevent such activated carbon powder from leaking, a paper bag (Patent Document 3) (Patent document 5) or network (patent document 6), it is fixed by a hook or a box or a panel having a hole or a hole for supporting them, but it is possible to install fixtures such as pipes and wiring piping on the wall, There is a difficulty in causing dust pollution due to leakage of the powder during processing. In the latter case, the activated carbon or charcoal-forming board is manufactured by hot press forming by high temperature and pressure (see patent document 7, patent document 8) or an activated charcoal or charcoal board manufactured by the same hot-pressing method, and the surface layer is made of wood (Patent Document 9), which has beautifully decorated and has an air inlet on the rear surface and a front surface to absorb air or lavender oil, and the like. The flat plate product thus molded is very convenient in terms of construction and management One of the disadvantages is that it requires a lot of equipment and energy that require high pressure and high temperature for manufacturing the product, and therefore the cost is very high. In addition, in accordance with the amendment to the Enforcement Decree of the Fire Service Installation, Maintenance and Safety Control Act (Presidential Decree No. 24304, promulgated on March 19, 2013) It would be better if the flame retardant performance and the higher flame retardant performance (flame retardant performance of building finishing material of Ministry of Land, Transport and Communications 2015-744) were given. Furthermore, there is a problem in that the plate-like flat plate product can not be bent or can not be processed in a three-dimensional area, and therefore, there has been a need to solve this problem.

In addition, although not shown for the purpose of preventing radon, a method of manufacturing a charcoal-treated wallpaper for adsorbing malodor, formaldehyde, etc. released in the air by utilizing the versatility of charcoal, . Since the wallpaper is generally thin, the amount of charcoal used here is small and the film thickness is very thin. In contrast to the charcoal which exhibits the characteristics and main function of the product, except for diluent, solvent, Is more than 20%.

That is, Patent Document 11 uses charcoal sandwiched between sheets as an intermediate layer. Patent Document 12 discloses that since an intermediate pulp layer mixed with granular charcoal is poured between the upper and lower pulp layers to float and emerge, do. Patent Document 13 discloses a wallpaper adsorbent sheet formed by forming bamboo charcoal, pulp and latex binders at the time of papermaking and repeating the operation of papermaking several times to form a plurality of papermaking layers. However, it is weak because it is thicker than general wallpaper and its handling is complicated. Therefore, in order to compensate for these drawbacks of Patent Documents 11, 12 and 13, Patent Document 14 has appeared, and it has a bamboo charcoal powder layer between a folded ground and a decorative sheet having air-permeable pinholes. The bamboo charcoal powder layer is prepared by coating 20 to 40% by weight of bamboo powder in 60 to 80% by weight of a methanol solution of a vinyl acetate polymer, and drying the coated powder. The coating amount is 10 to 25 g / m ² . Patent Document 15 relates to a coating composition for a kitchen cooking vessel and a method for coating a kitchen cooking vessel formed of a metallic material, which comprises 5 to 80% by weight of charcoal powder and 20 to 95% by weight of a Teflon resin, So that the effect of purifying the char and the effect of the far-infrared rays can be seen. In Patent Document 16, when applying to a metal plate to remove volatile organic compounds, the compounding ratio of the binder to the powdered activated carbon and the polyvinyl acetate binder was spread to a thickness of about 0.1 mm at a ratio of 0.2. In Patent Documents 7 and 8, the addition ratio of the binder to the weight of the charcoal was 25%. In the case of producing a bamboo charcoal bed sheet comprising 80 to 140 parts by weight of vermiculite, tourmaline, etc., 80 to 120 parts by weight of at least one binder selected from sodium silicate and calcium silicate, and 1.5 to 4 parts by weight of an aroma fragrance ingredient, based on 100 parts by weight of bamboo charcoal The compounding ratio of binder which is a binder is about 50%. In general, when the amount of the binder is lowered to 10% or less, it is more likely that the coating will be dropped if it is coated with water or a diluent. Therefore, the amount of the binder added to the solid content of the inorganic and charcoal is preferably 20% or more High, more than 100%, and the coating thickness of the coating is as thin as that of the pulp. If the compounding ratio of the binder exceeds 20%, the binder will surround the surface of the activated carbon powder or charcoal powder. Therefore, the adsorption effect of activated charcoal or char is beginning to decrease, and if it exceeds 30%, the adsorption effect is drastically decreased. In addition, when the thickness of the applied activated carbon layer is as thin as about the paint coating thickness, the lifetime of the radon adsorption effect is short, and if there is a gap in the coating film, a passage of sufficient thickness for adsorbing radon can not be secured, .

 Accordingly, the present invention solves the problems of the prior art, and it is easy to construct and use the flame-retarded activated carbon slurry to be used at a low cost, and it is not limited to the coating thickness of the coating like coating or paint but to 10-20 mm to 100 mm It is possible to process three-dimensionally the thickness of the curved part as well as the flat part by forming a very thick molding layer. The flame-retardant solid type of activated carbon which can be treated without any restriction on the inside of the wall finishing material or the wire pipe or building material Layer is formed to adsorb radon from the base of the building or the building material itself to block the radon path, as well as to adsorb bad odor to improve the indoor air quality, and also to produce a sound absorbing effect of flameproof activated carbon slurry And a molded article according to the method.

Prior art research literature

(Patent Document 1) KR 0920138 B1

(Patent Document 2) KR 0977707 B1

(Patent Document 3) JP 11-229604

(Patent Document 4) KR 10-0757316

(Patent Document 5) JP 2000-179088

(Patent Document 6) KR 2005-0517139

(Patent Document 7) KR 2006-0572591

(Patent Document 8) KR 2006-0587132

(Patent Document 9) KR 2013-1312049

(Patent Document 10) 10-0566481

(Patent Document 11) JP-A-2005-60867

(Patent Document 12) Registered Utility Model No. JP 3044415 1997

(Patent Document 13) JP 2006-112000 A JP 4621469 (2010.11.05)

(Patent Document 14) JP 5690536 JP 2012-072506 porridge

(Patent Document 15) KR 2006-0110175

(Patent Document 16) KR 1537813 (Jul.

(Patent Document 17) KR 1042105 (June 10, 2011)

(Patent Document 18) KR 2012-0122421

The technical problem to be solved by the present invention is that the first is a method of forming a low-cost activated carbon plate which is easily prepared by a mortar treatment method at room temperature and normal pressure, instead of a high- It is possible to process not only the degree of coating of the paint but also the thickness of 10-20mm to the surface of the ceiling or the surface of the ceiling to 100mm or more to be processed in a flat or curved or three dimensional space, It is possible to adjust the thickness and to have field adaptability to be able to be placed anywhere in the activated carbon slurry molding or on the surface without being affected by pipes or building materials such as walls or water pipes and wires in the wall finishing materials. Secondly, the scattering problem of powder dust, which is a problem in the direct use of activated carbon powder, appears in the case of nailing, wall processing, or additional construction. It is solved by dry solid layer of flame retardant activated carbon slurry, , And tacame noodles. Third, it is very difficult to find lacquer cracks due to painting or coating of paints because of very small cracks due to various reasons such as contact, impact, abrasion, repair and earthquake during the use of the building. The EPA of the US Environmental Protection Agency does not recommend it. Likewise, although it is not intended for the effect of adsorption of radon, the thin charcoal powder processing method for wallpaper such as adsorption, humidification and far-infrared effect such as odor is fundamentally thin in thickness of the wallpaper itself and also the amount of charcoal used and the thickness Compared with charcoal or inorganic materials, which exhibit the characteristics of the product and the main function, the addition ratio of the binder which fixes them is relatively high. That is, Patent Document 10 for protecting the concrete surface does not contain charcoal or activated carbon as a waste matter for the prevention of the radon, but Patent Document 1 has 200%, patent claim 2 claims 125%, claim 2 has 376% As compared to inorganic materials. When the surface of activated charcoal or charcoal powder is covered with a large amount of binder, the adsorption performance of lardon gas is relatively lowered. Therefore, by using a small amount as a human-friendly water-soluble binder, Patent Document 7, Patent Document 8 , Unlike a composite manufacturing method in which a binder is added in an amount of 20-25% of the weight of activated carbon at a total dry weight and a hot plate is produced by applying a high temperature and a high pressure to a flat plate as in Patent Document 9, when the amount of the binder added is 5-10% But the radon adsorption power is relatively high, so that it is desired to have a high efficiency of the radon adsorption power. Fourth, since Patent Document 7, Patent Document 8, Patent Document 9 is a product of flat board by high-temperature and high-pressure thermo-pressure method, expensive apparatus and energy are inputted and product price is very high. Activated carbon slurry is made, It can be applied to wall or ceiling of wall thicker than 100mm thick, or wall and ceiling face can be treated cheaply according to curved part or three-dimensional part, can be treated with different thickness, It can be processed without regard to wire pipes or building materials. It can be used as a composite body of molded activated carbon formed into a molding frame and integrated with the molding frame, so that the strength can be increased or the three-dimensional artistic feeling do. Alternatively, the mold or insert can be separated and the space or form occupied by the mold or insert can be used for special applications such as natural convection to release the air, radon and moisture retained in the wall by the air circulation passage to the outside of the building Inducing or forced air circulation by using a fan, so that it has high field adaptability and economical efficiency.

Fifthly, according to the "Enforcement Decree of the Fire Service Installation, Maintenance and Safety Control Act" (Presidential Decree No. 24304, promulgated on March 19, 2013) Flame retardant activated carbon slurry for adsorbing lardon gas which is capable of imparting flame retardant performance which is more than flame retardant performance, and a molded product thereof.

 Accordingly, the present invention has been made to solve the above-mentioned conventional problems and to provide a flame retardant activated carbon slurry which is easy to construct and can be used at low cost, and is not limited to a thin thickness of coating degree of paint, It can be applied to flat, curved or three-dimensional spaces by forming a very thick molding layer. It can be processed without any restriction on the inside of wall finishing materials or pipes or building materials, and it is possible to manufacture composite body integrated with molding frame, The strength and artistry can be enhanced according to the appearance, and the space occupied by the molds or inserts after molding can be utilized as an air circulation passage. The flame-retardant solid layer of the activated carbon made by using the flame-retardant activated carbon slurry adsorbs radon from the base of the building or the building material itself to block the radon path and adsorbs bad odor to improve the indoor air quality, The present invention relates to a flame-retardant activated carbon slurry for adsorbing lardon gas and a molded product according to the flame retardant activated carbon slurry.

Therefore, the solution of the flame retardant activated carbon slurry composition for adsorbing lardon gas according to the present invention is characterized in that water is added to activated carbon powder or charcoal powder, binder, refractory agent, antifoaming agent, surfactant, neutralizing agent, emulsifier, dispersant, Based on 100 parts by weight of the activated carbon powder, 5-10 parts by weight of a water-soluble binder, 3-10 parts by weight of borax as a fire retardant and a preservative, 3-10 parts by weight of boric acid 3-10 parts by weight, 45 to 180 parts by weight of water and 4 to 11 parts by weight of at least one additive selected from an antifoaming agent, a surfactant, an emulsifying agent, a dispersing agent, a neutralizing agent and an accelerator are added to the flame retarded activated carbon slurry, Or by a spray or blow-in method to form a dry-cured, thick-layer molded plate to adsorb lardon A method for manufacturing a flameproof activated carbon slurry for adsorbing lardin, and a molded product thereof.

 Since activated carbon has well-developed micropores, it has a very large surface area and does not have the property of hardening due to moisture, such as cement or loess, which is very strong adsorbent. Activated carbon used for activated carbon slurry for adsorption of lardon gas is granular activated carbon made from coconut angle, and it can be used in all sizes from # 8-30 mesh particle size to 100 μm activated carbon fine powder.

Therefore, a binder is required to attach the active carbon powder to each other so as to prevent the active carbon powder from flying. However, it is important how much binder you use. In Patent Documents 7, 8, and 9, high-temperature and high-pressure type binders were added in an amount of 20-25% of the weight of activated carbon on the basis of the weight of the total dry weight of the activated carbon slurry, A water-soluble binder which is solidified and is environmentally friendly and human-friendly is required. In general, a binder used as an adhesive is manufactured by a manufacturer according to the kind of binder, and the amount of application and addition is determined. If a product such as goriraglunaite bond and elmaglue, which are the most widely known wood adhesives in the world, is added to activated carbon in the recommended amount, a very large amount of binder is required to completely cover the surface of activated carbon having a very large surface area As the amount of binder increases on the activated carbon surface, the adhesion area and the layer are widened, so that the surface exposure of the adsorbed activated carbon is relatively reduced and the adsorption property of the activated carbon is lowered. Therefore, Will fall close to. In addition, it is impossible to completely fill the surface of the activated carbon at a small addition amount, so that a molded product can not be formed. Therefore, the key to solving the problem here is that the adhesion of the binder is good because the amount of the adhesive adhered to the surface is high and the adhesion is not good but the thin adhesive is well dispersed evenly on the surface. It is possible to dilute the concentration of the binder to a very dilute level so that the surface of the activated carbon can be evenly mixed with the small amount as compared with the weight of the activated carbon powder. For example, when 20-25% of the weight of activated carbon is added based on the total dry weight of Patent Document 7, Patent Document 8, and Patent Document 9 shown above, the synthetic resin binder is used in an amount of 5-10% The strength is lowered and the drying solidification time is slower, but the adsorption capacity of radon is relatively higher. Since organic solvents containing volatile organic compounds are not suitable for the human body, it is preferable to use water as a diluent. Most of the moisture on the surface of activated carbon is evaporated again into the air, and a small amount of remaining binder that is uniformly dispersed in the air will maximize the adsorption property while solidifying the activated carbon powder. Therefore, the treatment method of activated carbon slurry is inexpensive and easy in the field like cement mortar It is possible to have a high field adaptability and economical efficiency by the treatment method.

As a water-soluble binder which can be cured at room temperature, there are natural binder and synthetic resin binder. Examples of the natural binder include glue, gelatin, beeswax, casein, blood glue and the like as an animal adhesive. As the vegetable adhesive, starch paste, seaweed paste, guar gum, dextrin and the like can be used. These natural binders need to be supplemented with adequate water resistance, anticorrosive properties and flame retardancy that can withstand even the most humid conditions in the building, and additives are needed to improve workability. On the other hand, synthetic resin binders that complement natural adhesive strength and have excellent resistance to water and heat and workability include water-soluble vinyl resins, water-soluble polyurethane binders, water-soluble epoxy binders, and resorcinol resins.

As an example of a natural binder, when a gelatin binder is used, gelatin, which is a water soluble polymer protein, is a natural human-friendly and environmentally friendly substance and is excellent in stretchability, adhesiveness and environmental adaptability and can be applied to the surface of granular activated carbon with a very small amount Therefore, it is very suitable to maintain the adsorption property of activated carbon as it forms a layer having elasticity without odor when it is solidified at room temperature. The mixing ratio of gelatin is 5-10 parts by weight with respect to 100 parts by weight of dried granular activated carbon or charcoal powder, and the amount of water to be diluted with binder is 50-180 parts by weight according to the size of activated carbon particles to prepare a slurry.

As a synthetic resin binder, synthetic resins such as ethylene vinyl acetate emulsion (EVA Emulsion), ethylene-vinyl acetate-vinyl chloride emulsion (EVA-VC), ethylene vinyl chloride copolymer emulsion (ethylene-vinyl-chloride copolymer emulsion) and a water-soluble acrylic emulsion can be diluted with water to prepare an activated carbon slurry.

5-10 parts by weight of at least one binder resin selected from the above water-soluble vinyl-based resins is added to 100 parts by weight of the activated carbon powder based on the total dry weight. The amount of water to be diluted is smaller as the particle size of the activated carbon or charcoal powder The amount of water to be added is increased, and 45-180 parts by weight is blended. The flame retardant and the antiseptic agent are mixed with 3-10 parts by weight of borax, 3-10 parts by weight of boric acid, and at least one member selected from the group consisting of defoaming agents, surfactants, emulsifiers, dispersing agents, neutralizing agents, And 4 to 11 parts by weight of an additive to uniformly blend the flame-activated activated carbon slurry, which is uniformly blended, like a cement mortar.

Water-based polyurethanes have recently become increasingly important due to economic reasons as well as environmental problems. Many companies, such as BASF and BPI, are supplying products to consumers. The room temperature curing type aqueous polyurethane is a product which does not use organic solvent which is an air pollution source and does not detect formaldehyde, and is a high strength and waterproof binder. The solid content is about 33% -40%, and it forms an excellent film by simply physical drying at room temperature.

 When it is desired to increase the drying speed of the activated carbon slurry made of the aqueous vinyl adhesive or the aqueous polyurethane binder, it is necessary to first solidify the gelatin with the gelatin, and then gradually mix the gelatin and the synthetic resin The method is highly effective and at the same time the dissolution of water-soluble and flame retardant, which is a disadvantage of human-friendly and environmentally friendly gelatin, is prevented by the synthetic binder having high water resistance, so that the hybrid method In the example below.

 The activated carbon slurry composition according to the present invention may contain a protective colloid, a surfactant, a defoamer (dispersant), a fire retardant, an antiseptic and other additives if necessary, depending on the type of the binder. The protective colloid (surfactant) Polypropylene glycol, polyethylene glycol and the like, and there are various trade names.

Examples of antifoaming agents include higher fatty acid amides, higher molecular weight polyethylene glycols, fatty acid lower alcohol ethers, polypropylene glycol, ester amides of higher fatty acids, organic phosphate esters, metal stones of higher fatty acids, tall oil, dimethyl polysiloxane, Hydrophobic silica and the like can be used.

In order to impart flame retardancy to the activated carbon slurry, a method of treating a water-soluble inorganic salt which is easy to treat and which has little detoxification in the human body is selected. American Wood Preservation Association (AWPA) as a fire-resistant agent which uses a lot of wood products in the specification since the 1970s, _{ZnCl 2, Na 2 Cr 2 O} 7, (NH 4) 2 SO 4, (NH 4) 2 HPO 4, H 3 BO ₃ , and Na ₂ B ₄ O _{7 ·} 10H ₂ O. Boron-based hydrates form a low melting glass on the surface along with the release of water vapor during decomposition to impart flame retardancy. , It is known as low toxicity to humans and mammals, and until recently, these boron-based flame retardants have been used to develop the technology. Borax Na ₂ B ₄ O _{7 ·} 10H ₂ O interferes with flame propagation and boric acid H ₃ BO ₃ plays a role in reducing combustion. It is also used as preservative and disinfectant. Borax is not readily soluble in water, so it is mixed with boric acid and melts easily. Halogen type flame retardants, which are widely used in Korea, are now being converted into non-halogen flame retardants because they generate dioxins, which are harmful substances when burned.

Therefore, the flame-retarded activated carbon slurry using these boron-based flame retardants has a preservative effect and can be constructed at a lower cost than the conventional high-temperature and high-pressure activated carbon board flat plate method. It can be applied to a very thick flat, curved or three-dimensional space. It can be processed as it is without any restriction on the inside of the wall finishing material or pipes or building materials. Also, it is possible to manufacture a composite body integrated with a molding frame by using a molding frame, It is possible to increase the strength and artistry according to the physical properties and the appearance, and to separate the molds and the inserts from each other, and to discharge the air, radon and moisture retained in the wall to the outside of the building To induce natural convection or use a fan to make forced air circulation. Can. Therefore, it can be used for ceiling products combined with thin mold products used as finishing materials on the ceiling, and the pipes on the wall side can be embedded in flame-retardant activated carbon slurry, thereby being able to function as a composite product.

 If you want to give a special strength, you can apply it on the finishing material that will be placed on the inside of the building rather than on the wall of the building. If you work on integrating it, you can reinforce the strength with the help of the finishing material with high strength. A lattice or a honeycomb made of a flame retardant paper, a flame retardant plastic, a flame retardant wood and a metal material, which is used as a core in furniture and doors sold on the market, as in Fig. 5, Shaped hexagonal continuous structure can be used to form a thick, lightweight, high strength reinforced, dry, hardened composite to prevent the slurry from flowing down during construction.

Also, if you need to make holes in the wall or ceiling due to additional plumbing, electrical and other works of the building after construction, you need to drill a hole and then use a sealant gun containing flame retarded activated carbon slurry to seal around the hole and pipe like a silicone sealant. It also has the advantage of repairs.

The flame-retardant solid layer of the activated carbon made by using the flame-retardant activated carbon slurry adsorbs radon from the base of the building or the building material itself and not only blocks the radon path, but also exhibits all the characteristics possessed by the activated carbon, The present invention relates to a method for producing flame retardant activated carbon slurry for ladon gass adsorption which not only improves air quality but also has a sound absorption effect, and a molded product according to the method.

As described above, the present invention uses a flame-retarded activated carbon slurry to form a thick molded solid layer by applying or spraying it as a cement mortar to a building wall or a ceiling, and is applicable to a flat, curved or three- dimensional space. It can be processed without regard to pipes and building materials, and it is also possible to manufacture a composite body integrated with a molding frame by using a molding frame to enhance the strength and artistry according to the physical properties and appearance of the mold frame, And can be used for special purposes by utilizing the space or shape occupied by them. The molding layer of the flame-retardant activated carbon slurry adsorbs the lardon gas coming from the building material itself, such as concrete, gravel, and gypsum board, which constitute a building or a subway facility including a multi- Harmless effect, it is effective to lower the incidence rate of lung cancer, to improve the indoor air quality and to produce a sound absorption effect, and to create a pleasant residential culture.

FIG. 1 shows a state in which a flame-retarded activated carbon slurry is applied to a surface composed of a frame of wood and a plywood, and after it is completely hardened, it is firmly attached to the frame and plywood.
Fig. 2 shows the workability of the molded product after molding of the flame-retardant activated carbon slurry. The left figure shows that the screw and the nail formability are good. In the middle figure, the takar nail and the staple nail are well- .
Fig. 3 shows a solidified state after molding by a mold frame. The left side is solidified by separating from the bowl-shaped mold, and the right side shows that the space occupied by the insertion material after removing the insertion material remains in three dimensions and can be used for special purposes such as air or water discharge passage.
The left side of FIG. 4 shows the surface of a decorative ornamental thin aluminum decorative tile ceiling board which is non-combustible, weatherproof, corrosion-resistant and moisture-resistant, which is distributed in the market, and the right side is filled with flame-retarded activated carbon slurry on the backside thereof, This is a composite of a flame-retardant activated carbon molded article and a deco-ceiling panel that are made of a flame-retardant activated carbon layer of a composite made of a flame-retardant activated carbon and adsorbing radon under a building roof.
FIG. 5 is a drawing of a flame-retardant activated carbon composite formed article in which a flame-retarded activated carbon slurry is filled in a paper hollow structure having a grid-like hollow continuous structure to form a composite body.

The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a construction material such as concrete, gravel, gypsum board, etc. that flows into a building through a gap, And a thick solid layer is formed on the wall surface of the building or on the front face of the ceiling so as to adsorb the volatile organic compounds and bad smell generated in the room to absorb the lardon gas, A slurry production method and a molded product according to the method. Flame retardant activated carbon slurry is cheaper than existing high temperature and high pressure activated carbon board flat plate method, and can be applied to flat, curved or three dimensional spaces as very thick as 10-20 mm to as much as 100 mm on wall or ceiling surface. It is possible to process without any restriction on the inside of the wall finishing material or pipes or building materials, and it is also possible to manufacture a composite body integrated with a molding frame by using a molding frame, thereby enhancing strength and artistry according to the physical properties and appearance of the molding frame, The space or shape occupied by the insert material is separated and used to induce natural convection so that the air, radon, and moisture residing in the wall can be discharged to the outside of the building, or used as an air circulation passage for forced air circulation by using a fan . Also, when the repair is performed, the maintenance part is also cut off and the advantage is obtained that the flame-retarded activated carbon slurry can be used again after repairing.

The active carbon for the composition of the flame-retarded activated carbon slurry according to the present invention is a carbon material whose main component is porous and has a well-developed microporosity as shown in the solution means of the present invention, A binder for solidifying activated carbon is the most important, and a flame retardant for imparting flame retardancy and various additives for imparting various properties are required. In addition, even if the strength of the solid body after molding is low, it is necessary to minimize the addition amount of the binder so as to maximize the radon adsorption power. As shown in Table 2, the average value of the radon adsorption value of the molded article made by the flame-retarded activated carbon slurry method having the low binder content of the present invention was 0.3 pCi / l, which was lower than that of the ordinary air (0.4 pCi / l) The radon average measurement value of the product according to Patent Document 7, which is made by the high-temperature and high-pressure hot press method having the binder content of 25% of the activated carbon weight on the dry weight basis, is lower than half of the average radon average measurement value of 0.7 pCi / The addition method proves to be very effective for radon adsorption. Therefore, even though the strength value is lower and the drying solidification time is slower than the high-temperature and high-pressure method, the radon adsorption effect is extremely high. In order to accomplish this, as described above, a flameproof activated carbon slurry for ladon gassing adsorption is used to form an extremely thin binder even after water is dried, even if it takes a long time to dry the water by using a large amount of water as a diluent so as to be evenly buried on the activated carbon surface. Means for solving the composition include uniformly blending the active carbon powder or charcoal powder, binder, refractory agent, antifoaming agent, filler, emulsifier, dispersant and preservative by adding water.

More specifically, 5-10 parts by weight of a water-soluble binder, 3-10 parts by weight of borax as a refractory agent, 3-10 parts by weight of boric acid as a preservative, and 45-180 parts by weight of water, based on 100 parts by weight of activated carbon powder or charcoal powder, 4 to 11 parts by weight of at least one additive selected from the group consisting of an antifoaming agent, a surfactant, an emulsifying agent, a dispersing agent, a neutralizing agent and a promoter is added to the flame-retardant activated carbon slurry so that the flame-retarded activated carbon slurry is applied to the inner wall or ceiling of the building like a mortar or sprayed or blown And then drying and curing the mixture to form a wall and a cloth of a thick layer to adsorb lardgan gas, and a molded product thereof.

Activated carbon used for activated carbon slurry for adsorption of lardon gas is granular activated carbon made from coconut angle, and it can be used in all sizes from # 8-30 mesh particle size to 100 μm activated carbon fine powder.

 Therefore, the binder and the additive for the composition of the activated carbon slurry are important. Therefore, the present invention will be described with reference to the following examples.

A gelatin binder is used for the production of flame retardant activated carbon slurry for radon adsorption. Gelatin is a kind of induction protein extracted from collagen, which is a natural protein that constitutes animal skin, bone, ligament and tendon, with acid or alkali. It is environmentally friendly product obtained from nature, not chemical substance. It is used for edible and industrial use. It has a strong adhesive force and elasticity, it has a merit that it is easy to use and prevents distortion of paper-like adherend. On the other hand, it is necessary to compensate for adequate water resistance, anticorrosive properties and flame retardancy which can withstand the high humidity conditions in the building, and additives for improving the workability are needed. The mixing ratio of gelatin is 5-10 parts by weight with respect to 100 parts by weight of dried granular activated carbon or charcoal powder, and the amount of water to be diluted with binder is from # 8-30 mesh particle size to about 100 μm (# 150 mesh) The activated carbon slurry was prepared by blending 50-180 parts by weight of the activated carbon particles according to the size of the activated carbon particles. All weight parts applied here apply on the basis of the whole dry weight.

1. While slowly mixing 5 parts by weight of gelatin into 50 parts by weight of water at 60 DEG C in a mixer, the mixture was stirred and dissolved for 20 minutes. Then, 6 parts by weight of flame retardant borax and 5 parts by weight of preservative boric acid were added to 0.1 to 2.0 parts by weight of a defoaming agent and 0.3 to 2.0 parts by weight And dissolved evenly.

2. Add 100 parts by weight of dry granular activated carbon having a particle size of # 8-30 mesh to a mixer after one step and mix evenly.

3. Spray or spray the activated carbon slurry on walls or ceilings of cement or wood.

4. Proper thickness and room temperature of flame-retarded activated carbon slurry, ie, heating condition and ventilation condition Depending on whether the ventilator is operating or not, it can be used after cooling for 2-7 days at room temperature.

After one week, the water content of the activated carbon slurry was dried and the gelatin binder was cooled and solidified, and the water content of the flaky activated carbon molded article having a water content of 9% was found to be 0.49 g / cm3 as shown in Table 1 and the bending strength was 13.7 kgf / Cm < ² > (1.34 N / mm < ² >). Therefore, the dimensional stability was very good and the strength was slightly lower than the minimum value of 15kgf / ㎠ of the woody Inshi Rayon board, but there was no particular problem in use. If you want to give a special strength to the wall of the building, do not apply to the wall of the building to be placed on the back of the wooden wall plate or finishing material to be integrated into a composite work to strengthen the strength can be reinforced with a large amount of finishing materials. In addition, when treating the flame retarded activated carbon slurry, instead of a form in which the yellow clay of the clay loam is knotted and the loess mortar is knitted together, as shown in Fig. 5, Using a lattice or honeycomb hexagonal hollow continuous structure made of flame retardant paper, flame retardant plastic, flame retardant wood and metal materials sold with a high strength and excellent shock absorbing property, one side is bonded with nonwoven fabric, The activated carbon slurry is allowed to be confined so that the slurry does not flow down during the application, and the honeycomb activated carbon composite body is strengthened in strength. The thick wall and the cloth body are formed or the core is bonded to the finishing material such as the wood wall plate Honeycomb activated carbon slurry treated with flame-retardant activated carbon slurry was mixed with honeycomb activated carbon wall plate composite Can. In the case of the hollow structure of FIG. 5, the cell size had a lattice structure with a length of 60 mm on one side, and the depth (thickness) to fill the activated carbon was 10 mm. If the cell size is too small, the strength is good but the slurry treatment becomes inconvenient. If the gap is too wide, the construction becomes inconvenient, so the cell size is suitably from 5 to 10 cm. The sawing, tacking and screwing and the workability of the molding of the flame retardant activated carbon slurry were very good as shown in Fig. The radon value of the chamber passing through the molded product of the flame-retardant activated carbon slurry was found to be a value (0.4 pCi / l) lower than that of air as shown in Table 2, which was 0.3 pCi / l for 6 days. The measured value of the product according to Patent Document 7 of high temperature and high pressure was 0.7 pCi / l, demonstrating that the low addition of binder was very effective for adsorption of radon. Therefore, even though the strength value is lower and the drying solidification time is slower than the high-temperature and high-pressure method, the radon adsorption effect is extremely high. The combustion performance test was conducted by the cone calorimetry method of KS F ISO 5660-1: 2008, and passed through grade 3 of flame retardancy. As shown in Fig. 4, it was very normal without any appearance of harmful cracks, holes and fusing.

Physical and Mechanical Properties of Flame Retardant Activated Carbon Slurry Moldings bookbinder Density (g / cm ³⁾ Moisture content (%) Absorption Rate (%)
(24hr) Absorption thickness swelling rate
(%) (24 hr) Bending strength (N / mm ² ) G 0.49 (0.01) 9 (0.00) 59 (0.6) 0 1.34 (0.04) EVCL 0.47 (0.02) 9 (0.00) 49 (0.04) 0 0.75 (0.04) PU 0.60 (0.28) 12 (0.01) 22 (0.02) 0 1.17 (0.08) GE 0.45 (0.01) 9 (0.00) 74 (0.09) 0 1.07 (0.02) GP 0.54 (0.07) 8 (0.00) 34 (0.06) 0 1.34 (0.04) GEp 0.48 (0.01) 11 (0.00) 35 (0.05) 0 1.26 (0.11)

Binder Type Symbol Description

G: Gelatin, E: EVCL: Ethyl vinyl chloride, P: PU: Polyurethane resin, Ep: Epoxy resin

GE: Vinyl chloride hybrid to gelatin, GP: Gelatin polyurethane resin hybrid,

GEp: Gelatin Epoxy Resin Hybrid.

Measured effect of radon radioactivity reduction on flame retardant activated carbon slurry moldings bookbinder  Control 1 Control 2 G EVCL PU GE GP GEp Radon Measurements (pCi / l) 17.2 0.7 0.3 0.3 0.3 0.3 0.3 0.3

Measurement period: Average value measured for 6 days

Radon Meter: United States Sun Nuclear Co. Radon Meter Model 1028

Binder Type Symbol Description

Control 1: Measurement of radon source in a radon measurement chamber, Control 2: High-temperature and high-pressure activated carbon board according to Patent Document 7: Method G: Gelatin, E: EVCL: Ethyl vinyl chloride, P: PU: Polyurethane resin, GE: Gelatin Ethyl vinyl chloride hybrid, GP: Gelatin polyurethane resin hybrid, GEp: Gelatin epoxy resin hybrid.

(EVA), polyvinyl acetate emulsion (PVAc), ethylene-vinyl acetate-vinyl chloride emulsion, ethylene-vinyl chloride emulsion (EVCL), and the like can be used as an aqueous vinyl binder for producing flame retardant activated carbon slurry for radon adsorption. ), vinyl acetate-ethylene-N-methylolacrylamide (VAE-NMA) emulsion, etc. Since the polyvinyl acetate emulsion has strong acetic acid odor, the use of an aqueous vinyl binder Ethylene vinyl chloride copolymer emulsion (EVCL) is an ethylene vinyl chloride copolymer emulsion (ethylene vinyl chloride copolymer emulsion) which is obtained by copolymerizing ethylene and vinyl chloride The product has excellent fire resistance, water resistance and alkali resistance, , The solid content was 50%, and 5-10 parts by weight of an aqueous vinyl binder was blended with 100 parts by weight of dried granular activated carbon or charcoal powder, and the amount of water to be diluted with the binder was changed from # 8-30 mesh particle size to 100 μm (# 140 ) To 50-180 parts by weight based on the size of the activated carbon particles to prepare an activated carbon slurry as follows.

1. To the mixer was added 0.4 part by weight of polyvinyl alcohol as stabilizer, 0.1 part by weight of antifoaming agent (weight ratio) as a stabilizer to 9 parts by weight (dry solid content) of a water-based ethylene-vinyl chloride copolymer emulsion (DA910: 50% solids content, 50 parts by weight of water and 0.135 parts by weight of curing accelerator citric acid were added and stirred for 10 minutes. After 10 minutes, 5 parts by weight of the flame retardant borax and 5 parts by weight of the preservative boric acid were gradually dissolved at 40-50 ° C.

2. Add 100 parts by weight of dried granular activated carbon (# 8-30) to a mixer after one step and mix evenly.

3. Spray or spray the activated carbon slurry on walls or ceilings of cement or wood.

4. Depending on the proper thickness and indoor conditions of the building, dry it well so that the water content of the molded body becomes 15% or less after 2-7 days.

One week after the activated carbon slurry thus prepared was applied to the wall, the solidified activated carbon layer had a water content of 9% and a specific gravity of 0.6 g / cm ³ , and showed no dimensional expansion after the absorption of water, And showed a flexural strength of 0.75 N / mm ² . As shown in Table 2, the radon value of the chamber passed through the molding of flame-retardant activated carbon slurry was very effective as 0.3 pCi / l. The results of the combustion performance test (KS F ISO 5660-1: 2008) by the cone calorimetry method passed the grade 3, and as shown in Fig. 4, it was very normal without any harmful cracks, holes and fusions.

Water-soluble polyurethane is used for the production of flame retardant activated carbon slurry for radon adsorption. Water-soluble polyurethane without organic solvents is free of air pollution sources, has good strength, is waterproof, has no risk of fire, and has a pleasant working environment. In general, the binder is supplied in a solid content of 33-40%. The minimum film forming temperature is about 0 ° C. In the examples, an example of an autocurable water-soluble room temperature curing type hybrid polyurethane binder in which 3-aminopropyl triethoxysilane (APTES) was covalently bonded with a curing agent was used as an example in the following manner.

1. 45 parts by weight of a polyol (1,4-butylene adipate diol: PBAD), 3 parts by weight of an emulsifier 2-bis (hydroxymethyl) propionic acid (DMPA), 3 parts by weight of a neutralizing agent triethylamine (TEA), 0.07 parts by weight of dibutyltin diacetate And 70 parts by weight of Acetone were charged into a reactor and 25 parts by weight of isoprene diisocyanate (IPDI) was dropped dropwise at 1 ml per minute. The mixture was allowed to react at 60 ° C for 3 hours to prepare a prepolymer. 2.3 parts by weight of 1,4-butanediol (BD) React. Thereafter, the reaction temperature is lowered to 25 ° C, 8.4 parts by weight of 3-aminopropyl triethoxysilane (APTES) is added, and the mixture is reacted for about 1 hour until the NCO group is eliminated. Thereafter, 180 g of water was added dropwise at 3 ml per minute while stirring at 400 rpm at 25 캜, and 220 parts by weight of water containing 1 part by weight of the emulsifier DMPA was further added in the same manner. After the addition of water, stirring is continued for 30 minutes, and the acetone is removed by a distillation apparatus. Finally, an aqueous dispersion emulsion having a solids content of 16-19% is prepared.

2. 100 parts by weight of dry granular activated carbon (# 8-30) was added to the mixer, and 56 parts by weight of a water-soluble room temperature curing type hybrid polyurethane binder prepared in the first step (corresponding to 10 parts by weight of a polyurethane binder and 46 parts by weight of water ) And mixed evenly.

3. After 2 steps, add 6 parts by weight of flame retardant borax and 5 parts by weight of preservative boric acid to the mixer and mix evenly.

4. The prepared activated carbon slurry is applied to a wall or ceiling of a concrete wall or a ligneous material wall, or sprayed in a mold between the lining material and the wall to form a solid layer.

5. After 2 to 7 days depending on the right thickness, the moisture content was dried at a moisture content ratio of 12% after one week.

In this way the solidification after applying the manufactured slurry of activated carbon in the activated carbon solidified wall byeokcheung is 0.6g / cm ³ was having a specific gravity of not all the thickness swelling after absorbing water was to show the dimensional stability of the bending strength 1.17 N / mm ² Respectively. As shown in Table 2, the radon value of the chamber passed through the molding of flame-retardant activated carbon slurry was very effective as 0.3 pCi / l. The combustion performance test (KS F ISO 5660-1: 2008) by the cone calorimetry method passed the grade 2, and as shown in Fig. 4, it was very normal without any harmful cracks, holes and fusions.

In order to prepare flame retardant activated carbon slurry for adsorption of radon, a hybrid binder is used by mixing gelatin and a synthetic resin binder. In order to compensate for the curing of the binder, which is a synthetic resin, at room temperature, the gelatin binder of Example 1 was hybridized with a water-soluble vinyl resin, a water-soluble polyurethane resin and a water-soluble epoxy resin to solidify the gelatin The solidification of the activated carbon slurry by the gelatin proceeds first and then the binder of the mixed synthetic resin is dried after the solidification of the activated carbon slurry by the gelatin is performed and the post curing is performed. Since water-soluble gelatin is a human-friendly natural protein system, it should be given a weak water resistance, flame retardancy and preservation performance. Treatment of boron-based flame retardant, which is known to be the least toxic to humans and mammals, The leaching of the flame retardant may occur due to its weakness. This disadvantage is blocked by a hybrid water-resistant synthetic resin binder, which prevents the flame retardant from leaching and reinforces the water resistance. Therefore, the synthetic resin binder becomes a hybrid binder of the system which coalesces with each other while solidifying the late drying solidification speed with the help of gelatin. The ratio of the gelatin solution to the synthetic resin to be mixed therewith can be 1: 9 to 9: 1 by weight based on the total dry weight, and the following example is an example of the intermediate mixing ratio of 5: 5.

1. Water-soluble room temperature curing type gelatin vinyl emulsion hybrid binder

1) To 50 parts by weight of water at 60 DEG C, 5 parts by weight of gelatin was slowly added to 50 parts by weight of water, and the mixture was stirred and stirred for about 20 minutes. After the temperature was lowered to 40-50 DEG C, 0.1 part by weight of defoamer and 0.4 part by weight And 5 parts by weight of an aqueous ethylene-vinyl chloride copolymer emulsion (dry solid) (DA 910: 50% solids content, minimum film forming temperature: 2 캜) were added. After 10 minutes, 0.135 part by weight of curing accelerator citric acid, 5 parts by weight of fire retardant borax, 5 parts by weight of preservative boric acid is added slowly to dissolve evenly.

2) 100 parts by weight of dried granular activated carbon having a particle size of # 8-30 mesh is added to a mixer after one step and mixed evenly.

3) Spray or spray the prepared activated carbon slurry on walls or ceilings of concrete or wood.

4) Depending on the right thickness, cure through a drying period of 2-7 days so that the water content becomes the dry state.

5) After one week, the water content was 9% and the swelling rate after the absorption was 0%, and the dimensional stability and the processability were very good. The radon value of the chamber passing through the molding was very effective as 0.3 pCi / The test result passed grade 3.

2. Water-soluble room temperature curing type gelatin-polyurethane hybrid binder

1) To 50 parts by weight of water at 60 占 폚, 5 parts by weight of gelatin was slowly added to the mixer and stirred for about 20 minutes to completely dissolve the mixture. Then, the temperature was adjusted to 40-50 占 폚, 0.1 parts by weight of an antifoaming agent, And 1 part by weight of an emulsifier (DMPA) are mixed and stirred.

2) 5 parts by weight of the water-soluble room temperature curing type hybrid polyurethane binder prepared in Example 3 was added in an amount of 5 parts by weight and mixed evenly with stirring.

3) 100 parts by weight of dry granular activated carbon having a particle size of # 8-30 mesh is added to the mixer which has been subjected to the 1,2 steps, and the mixture is homogeneously mixed.

4) After the third process, 5 parts by weight of the flame retardant borax and 5 parts by weight of the preservative boric acid are added evenly.

5) Spray or spray the prepared activated carbon slurry on walls or ceilings of concrete or wood. Curing is carried out through a drying period of 2 to 7 days so that the water content becomes proper according to the correct thickness.

6) After one week, the water content was 8% and the thickness swelling rate after the absorption was 0%, and the dimensional stability was very good and the workability was excellent. The radon value of the chamber passing through the molding was very effective as 0.3 pCi / As a result of the test, the best result of the binder was observed.

3. Water-soluble room temperature curing type gelatin-epoxy resin hybrid binder

This is an example of using a water-soluble room temperature curing type epoxy resin for the production of flame retardant activated carbon slurry for radon adsorption. Cured at room temperature. A two-pack type aqueous room temperature curing type epoxy resin having excellent water resistance and chemical resistance and having good adhesive strength and elasticity was prepared as follows and used as a hybrid with gelatin.

1) To 50 parts by weight of water at 60 DEG C, 5 parts by weight of gelatin was slowly added to 50 parts by weight of water, and the mixture was stirred and stirred for about 20 minutes. After the temperature was lowered to 40-50 DEG C, 0.1 part by weight of defoamer and 0.4 part by weight And 0.1 part by weight of an emulsifier polyoxyethylene and polyoxypropylene block copolymer were mixed and stirred.

2) 5 parts by weight of the mixture obtained by mixing the weight ratio of the curing component to the epoxy basic resin component prepared in the following (1) and (2) at 100: 40 was added after 1) step and mixed evenly with stirring.

end. Composition of Epoxy Base Resin Component

Component Weight (g)

Epoxy resin 45.00 Copolymer of epichlorohydrin and bisphenol (Kukdo Chemical)

Reactive diluent 6.00 Trifunctional epoxy glycidyl ether

Coagulant 1.10 Silicon Dioxide (Aerosil)

Accelerator 0.30 Phenol

Emulsifier 0.10 Polyoxyethylene and polyoxypropylene block copolymer

Water 47.50

Total 100.00

I. Composition of the curing component

Component Weight (g)

Curing agent 1 16.00 Polyoxypropylene diamine

Curing agent 2 45.00 Polyamide (weight average molecular weight 2800)

Curing agent 3 5.0 Triethylenetetraamine

Accelerator 5.0 Phenol accelerator (A-399)

Emulsifiers 5.0 Polyoxyethylene and polyoxypropylene block copolymers

Water 24

Total 100.00

3) 100 parts by weight of dried granular activated carbon having a particle size of # 8-30 mesh is added to the mixer of step 1) and 2) and mixed evenly.

4) After step 3, 6 parts by weight of flame retardant borax and 5 parts by weight of preservative boric acid are added to the mixer and mixed evenly.

5) Spray or spray the prepared activated carbon slurry on walls or ceilings of concrete or wood. Curing is carried out through a drying period of 2 to 7 days so that the water content becomes proper according to the correct thickness.

6) After one week, the water content was 11% and the thickness swelling rate after the absorption was 0%. The dimensional stability and the processability were very good. The radon value of the chamber passing through the molding was very effective as 0.3 pCi / The test result passed grade 3.

Flame retarded activated carbon slurry for adsorption of radon from Examples 1 to 4 was prepared and molded into a mold of a plywood and a wood frame by a flat plate as shown in Fig. 1, and then separated from a mold frame and dried and cured in a room for 7 days. F In accordance with the flame retardant performance standard of ISO 5660-1: 2008, the combustion performance test was conducted with a cone heater. As a result, the appearance of the test specimen was normal without any cracks or holes due to fire. As shown in Table 3, all the specimens passed the grade 3 flame retardant test and only the gelatin and polyurethane hybrid binders passed the grade 2 flame retardancy test.

Combustion performance test according to KS F ISO 5660-1: 2008 bookbinder Heat output
(THR, MJ / m ² ) Heat release rate
(HRR, kW / m ² ) Flammability suitability Based on ISO 5660-1dp flame retardant (grade 3)
5 minutes /
THR: 8MJ / m2 or less
HRR: 200kW / ㎡ or less

Semi-incombustible (grade 2) for 10 minutes /
THR: 8MJ / m2 or less
HRR: 200kW / ㎡ or less Class 3 2nd grade Class 3 2nd grade Class 3 2nd grade G 1.88 8.3 11.97 16.65 0 X EVCL 2.86 9.7 8.9 19.69 0 X PU 2.08 9.1 14.47 18.71 0 X GE 2.89 16.65 17.7 22.56 0 X GP 2.06 7.5 9.91 15.46 0 0 GEp 2.06 9.1 13.78 19.18 0 X

Binder Type Symbol Description: As Table 1

Performance criteria: KS F ISO 5660-1: 2008

[Combustion performance test - Heat release, smoke generation, mass reduction rate - Part 1: Heat release rate

(10 minutes for quasi-incombustible material test), the total heat release rate is 8MJ / ㎡ or less for 5 minutes (10 minutes for semi-combustible material test) Or more. Continuous 200 kW / m2 or more, and 5 minutes (semi-fireproof material test: 10 minutes), after passing through the specimen after heating. Harmful cracks, holes and fusions (In case of composite materials, Etc.) should not be present.

Test Methods :

A) The radiant heat of the cone heater is set to 50 kW / ㎡ ± 1 ㎾ / ㎡ and the discharge flow rate is set to 0.024 ㎥ / s ± 0.002 ㎥ / s.

B) Place the test specimen and the test specimen holder on the mass spectrometer.

C) Remove the radiant heat interrupter and heat it for 5 minutes (10 minutes for semi-combustible material test).

D) Measure the maximum rate of heat release and the total calorific value.

E) After completion of heating, remove the test holder from the mass spectrometer and observe the test specimen.

Fig. 3 shows a solidified state after molding by a mold frame. The left side is a bowl shape, and the right side can be used not only as a rectangular parallelepiped but also as a variety of three-dimensional shapes, so that the space occupied by the insertion material after removing the insertion material can be left in various forms. Also, it is possible to manufacture a complex which is integrated with a mold by using a mold, and a complex which adsorbs radon while enhancing strength and artistry according to physical properties and appearance of a mold can be manufactured. For example, thin decoupled ceiling panels, which are used as ceiling finishing materials that are currently sold on the market, are mainly made of thermosetting resin plates, aluminum, tin and iron, and thin, light and fireproof (Circulated at a size of 30 cm * 30 cm or a drainage thereof) or a deco wall board used in a wall, the flame-retardant activated carbon slurry is put into an invisible concave portion (average depth of 10 mm) When solidified by complex integration, the appearance of the colorful aluminum decoy ceiling panel as shown in FIG. 4 is seen from the inside of the room, but in reality it becomes a complex of the flame activated carbon formed body and the decoy ceiling panel which adsorb the radon on the ceiling board below the building roof. In the case of using a conventional commercial decoy ceiling plate, the clip bar type is manufactured by adjusting the flame-retarded activated carbon slurry in the construction of the composite, and there is no problem even if it is used as it is when it is fixed by emboss piece. If necessary, it would be better to design the new composite to suit the construction. At this time, the flame-retarded activated carbon slurry on the decaning plate is dried at room temperature, and the time required to form the composite takes about 2-7 days, as described above, depending on the environment and conditions. Therefore, in such a case, it is possible to adopt a property dry curing method in accordance with the mass production format, and it can be manufactured by a batch drying method or a drying method using a dryer such as a multi-step roller dryer or a jet nozzle roller type dryer in a continuous manner. In the case of heating and drying the hot plate for the decoyed ceiling panel of FIG. 4, a composite having a water content of about 7% is produced by drying at 175 ° C for 10 minutes. Likewise, a honeycomb-shaped core such as a honeycomb board is adhered to one side of a finishing material such as a flame-retardant wood wall plate material, the flame-retarded activated carbon slurry is treated in the core and dried and cured by a hot plate heating and drying method to produce a Honeycomb activated carbon wood wall plate composite .

Test Methods:

Using the water-soluble room temperature curing type gelatin-polyurethane hybrid binder of Example 4, the following composite was prepared.

1. In a mixer, 50 parts by weight of water at 60 DEG C was completely dissolved by stirring for about 20 minutes while gradually adding 5 parts by weight of gelatin based on the total dry weight, and then the temperature was lowered to 40-50 DEG C, 0.1 part by weight of an antifoaming agent, And 1 part by weight of an emulsifier (DMPA) are mixed and stirred.

2. 5 parts by weight of the water-soluble room temperature curing type polyurethane binder prepared in Example 3 was added in a dry weight, and the mixture was uniformly mixed with stirring.

3. 100 parts by weight of dry granular activated carbon having a particle size of # 8-30 mesh is added to the mixer which has been subjected to the 1,2 steps, and the mixture is homogeneously mixed.

4. After 3 steps, 5 parts by weight of borax and 5 parts by weight of preservative boric acid are added evenly.

5. The flame-retardant activated carbon slurry thus prepared was filled in a concave space on the back surface of a thin incombustible high-grade aluminum decorative tile roof as shown in FIG. 4 and placed in a heating plate at a temperature of 175 ° C for 10 minutes to obtain a composite having a water content of 7.3% .

 It will be apparent to those skilled in the art that the present invention is not limited to the above-described embodiments, and that the present invention is not limited thereto.

Claims (9)

5-10 parts by weight of a water-soluble binder, 3-10 parts by weight of borax as a refractory agent, 3-10 parts by weight of boric acid as a preservative, 45-180 parts by weight of water, a defoaming agent, a surfactant, 4 to 11 parts by weight of at least one additive selected from an emulsifier, a dispersing agent, a neutralizing agent and a promoter is added and the flame-retarded activated carbon slurry, which is uniformly blended, is applied to the inner wall or ceiling of a building such as a mortar or treated with a spray or blow- And the wall and the cloth of the lattice are adsorbed
(Method for manufacturing flameproof activated carbon for adsorbing lardin gas and molded products thereof).
5-10 parts by weight of a water-soluble binder, 3-10 parts by weight of borax as a refractory agent, 3-10 parts by weight of boric acid as a preservative, 45-180 parts by weight of water, a defoaming agent, a surfactant, 4 to 11 parts by weight of at least one additive selected from an emulsifier, a dispersant, a neutralizing agent and an accelerator is added to the flame-retardant activated carbon slurry so that the flame-retarded activated carbon slurry is uniformly blended into a mold like a mortar, A method for manufacturing a flameproof activated carbon slurry for adsorbing lardon gas, which uses only a molded article or is formed by putting an insert material and then used as it is, or the insert material is used as an air and water discharge passage.

The method according to claim 1 or 2,
As a water-soluble binder, gelatin is used singly or as a hybrid to adsorb lardin
(JP) METHOD FOR MANUFACTURING FLAMMABLE ACTIVATED CARBON SLURRY FOR RADONGAS.
The method according to claim 1 or 2,
As a water-soluble binder, water-soluble vinyl emulsion of ethylene vinyl chloride copolymer is used alone or in gelatin and hybrid to adsorb lardgan
(JP) METHOD FOR MANUFACTURING FLAMMABLE ACTIVATED CARBON SLURRY FOR RADONGAS.
The method according to claim 1 or 2,
As a water-soluble binder, a water-soluble polyurethane resin is used alone or in gelatin and hybrid to adsorb lardin
(JP) METHOD FOR MANUFACTURING FLAMMABLE ACTIVATED CARBON SLURRY FOR RADONGAS.
The method according to claim 1 or 2,
As a water-soluble binder, a water-based epoxy two-component aqueous adhesive was used as a gelatin and a hybrid
A method for manufacturing a flame retarded activated carbon slurry for adsorbing lardon gas and adsorbing the same.
The method according to any one of claims 1 to 6,
As a stencil forming mold, a conventional thin deco top board or deco wall board is used to produce a composite of the flame retarded activated carbon slurry treated on its back plate, which can be mass produced by the property dry curing method
(JP) METHOD FOR MANUFACTURING FLAMMABLE ACTIVATED CARBON SLURRY FOR RADONGAS.
The method according to any one of claims 1 to 6,
When treating the flame-retardant activated carbon slurry, use a lattice-shaped or honeycomb-shaped hexagonal hollow continuous structure made of flame retardant paper, flame retardant plastic, flame-retardant wood and metal material to apply a nonwoven fabric to one surface or attach a finishing material The wall and the cloth of the cured composite are formed by drying at room temperature or property drying to improve the convenience and strength of the construction
(JP) METHOD FOR MANUFACTURING FLAMMABLE ACTIVATED CARBON SLURRY FOR RADONGAS.
The method according to any one of claims 1 to 8,
If you need to make holes in walls or ceilings due to additional plumbing, electrical or other works of the building after construction, use a sealant gun containing flame retarded activated carbon slurry after work to repair holes and pipes.
(JP) METHOD FOR MANUFACTURING FLAMMABLE ACTIVATED CARBON SLURRY FOR RADONGAS.

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