WO2023080615A1 - Method for preparing adsorption material - Google Patents

Abstract

The present invention provides a method for preparing an adsorption material, which has deodorization efficiency and lasting power that are superior to those of conventional liquid antibacterial and deodorizing agents or solid materials such as activated carbon and porous zeolite materials, has manufacturing costs that can be reduced by 30% or more, requires no firing and grinding processes, thereby being competitive in price and quality, and can be effectively used for reducing air pollutants.

Description

Adsorption material manufacturing method

The present invention relates to a method for manufacturing an adsorbent material, which has high deodorization efficiency and excellent durability, and can reduce manufacturing cost by more than 30% compared to solid materials such as existing liquid antibacterial and deodorizing agents or activated carbon and zeolite porous materials. It relates to a method for manufacturing an adsorbent material that is competitive in terms of price and quality because it does not require firing and grinding processes and can be usefully used to reduce air pollutants.

Recently, in a situation where viruses and bacteria problems ranging from MERS to SARS and Corona are shaking the world, various technologies are emerging to counter them, and products using these technologies are coming out in various forms.

Most of the above products utilize existing technologies, and are manufactured through conversion of volatile and organic materials such as ethanol and chlorine, and zeolite or activated carbon, which are porous materials, as the most widely used materials.

In addition, there is silver nano as a single material related to antibacterial, but its use is regulated due to the problem of endocrine disruptors in the human body, and copper and zinc are used as materials to counter this, but safety issues are also emerging.

In addition, as an eco-friendly material, materials using various plants and shellfish are also coming out, and in this case, they have short-term functions, but show limitations in continuous functions.

In particular, activated carbon is widely used as a conventional deodorizing material. Activated carbon has a characteristic of adsorbing pollutants in a short time, but has low durability and poor adsorption capacity for ammonia and certain harmful gases.

On the other hand, the conventional adsorbent material is manufactured through hydration bonding, and at this time, a firing process must be performed to control moisture, which adds to the cost for firing and has the risk of safety accidents during the firing process.

Prior art literature

Patent literature

Korean Patent Publication No. 2017-0120447

An object of the present invention is to manufacture an ionized material that breaks each intermolecular ring for odor and harmful gas to cause functional loss, and decomposes the substances that cause various odors and harmful gases to improve the user's living environment. It is to provide a method for manufacturing the material.

In addition, the present invention is a method of removing viruses, molds, various bacteria and odors in an adsorption/collection type unlike conventional materials, and a method for manufacturing an adsorbent material capable of improving short-term effects over a period of time is intended to provide

In addition, an object of the present invention is to provide a method for manufacturing an adsorbent material, which has excellent durability, is easy to adsorb ammonia and a specific gas, and can be used for manufacturing powder used as a raw material or binder for functional products without a firing or grinding process. are doing

One aspect of the present invention, 22 to 25 ℃ distilled water (H ₂ O) and 8 to 10 parts by weight of ion catalyst Ca ⁺ based on 100 parts by weight of distilled water are put in a mixer, mixed for 60 seconds, and then mixed with 100 parts by weight of distilled water Prepare a liquid raw material by adding 72 to 74 parts by weight of zinc chloride (ZnCl ₂ ) and mixing for 10 to 12 minutes in an atmosphere of 25 ° C. and a humidity of 30 to 35%; Preparing a powder raw material by mixing magnesium oxide (MgO), 135 to 165 parts by weight of alumina (Al ₂ O ₃ ), and 90 to 110 parts by weight of titanium dioxide (TiO ₂ ) based on 100 parts by weight of the magnesium oxide; Preparing a hydration reaction product in an emulsion state by putting the liquid raw material and the powder raw material in a polymerization reactor at a weight ratio of 5:4 (liquid raw material: powder raw material) and subjecting the hydration reaction to hydration at 6 to 8 ° C. for 90 seconds; A zeolite having an average size of 10 mesh is mixed with a hydration reactant in an emulsion state at a weight ratio of 4:5 (hydration reactant:zeolite), and stirred in an atmosphere of 17 to 23 ° C. and a humidity of 10 to 15% to form pores and skin of the zeolite adsorbing and depositing a hydration reactant in an emulsion state on the phase; and drying the hydration reaction product by natural heat for 30 to 40 minutes to remove by-products and external moisture included in the hydration reaction product. to prepare a first powder by mixing the first powder with 225 to 275 parts by weight of activated carbon, 11.25 to 13.75 parts by weight of an ion catalyst, and 11.25 to 13.75 parts by weight of a binding polymer based on 100 parts by weight of the first powder. Preparing a mixed raw material by making, heating and melting the mixture, and then extruding; It provides an adsorption material manufacturing method comprising a.

According to a preferred feature of the present invention, prior to the adsorption and deposition steps, a step of operating the reaction mixer while maintaining 21 to 23 ° C. by putting zeolite having an average size of 10 mesh and less than 60% by weight into the reaction mixer, The step of adsorption and deposition is to prepare a mixed material by putting a liquid raw material and a powder raw material into another reaction mixer and mixing them, and then dividing the mixed material into a reaction mixer with zeolite by 20% by weight at intervals of 30 seconds; and maintaining the rotation of the reaction mixer for 1 hour to prevent intergranular agglomeration of the zeolite; can include

According to a preferred feature of the present invention, after the step of removing by-products and external moisture contained in the hydration reaction product, the temperature is increased to 80 to 90 ° C. and further stirring is performed for 30 minutes to reduce the amount of moisture contained in the hydration reaction product to 12 to 15% by weight; and pulverizing the hydration reactant having an adjusted moisture content into powder; may further include.

According to a preferred feature of the present invention, the step of cutting the mixed raw material in a die and cooling and extruding it in an extrusion air cooler to make activated carbon pellets may be further included.

According to a preferred feature of the present invention, the step of cutting the activated carbon pellets into fine powder may be further included.

According to an embodiment of the present invention, by controlling moisture by synthesizing zeolite in a conventional manufacturing process through hydration bonding, it is possible to manufacture an adsorbent material made of fine powder without a firing and grinding process.

In addition, the micropowdered adsorbent material manufactured according to an embodiment can be used to lower the manufacturing cost and manufacture products with stable quality, decomposes to prevent self-proliferation of viruses, bacteria and fungi, and responds to bacteria There is an effect that can provide excellent antibacterial and antiviral power by generating -OH radical.

In addition, the adsorbent material prepared according to one embodiment has excellent antibacterial durability semi-permanently and is easy to adsorb ammonia and specific gases, so that the deodorizing effect lasts semi-permanently, so it can be usefully used to reduce air pollutants It works.

1 is a flow chart showing the process of a method for manufacturing an adsorption material according to the present invention.

2 to 4 are test reports showing the radiant energy and emissivity of the adsorption material produced according to an embodiment of the present invention.

5 to 14 are test reports showing the deodorizing effect test results of the adsorbent material manufactured according to an embodiment of the present invention.

15 to 26 are test reports showing the antibacterial effect test results of the adsorbent material prepared according to an embodiment of the present invention.

The present invention solves the existing problems through an ionization process for complex compounds of corresponding substances for each part in order to overcome the limit of non-continuity in sterilization of viruses and bacteria using a single material and removal of odors and harmful gases. describes what to do.

Hereinafter, preferred embodiments of the present invention will be described. However, embodiments of the present invention may be modified in many different forms, and the scope of the present invention is not limited to the embodiments described below.

In addition, 'include' a component throughout the specification means that other components may be further included, rather than excluding other components unless otherwise stated.

Referring to FIG. 1, in order to manufacture such an adsorption material, first, distilled water (H ₂ O) at 22 to 25 ° C. and 8 to 10 parts by weight of ion catalyst Ca ⁺ based on 100 parts by weight of distilled water are put in a mixer and mixed for 60 seconds do.

In this case, when the temperature of the distilled water is less than 22 ° C, a problem of unstable ionic bonding may occur, and when the temperature of the distilled water exceeds 25 ° C, an incomplete state of the curing process may occur due to instability of bonding.

In addition, when Ca ⁺ is less than 8 parts by weight, a problem of weak ion distribution diffusivity may occur, and when Ca ⁺ is greater than 10 parts by weight, a problem of ion supersaturation may occur.

Here, Ca ⁺ is an electrolytic substance that promotes ionization to improve the ionization coefficient and electrical conductivity of the liquid raw material, and serves to make the reaction more likely to occur during the neutralization reaction described later.

Then, 72 to 74 parts by weight of zinc chloride (ZnCl ₂ ) is further added to the mixer based on 100 parts by weight of distilled water and mixed for 10 to 12 minutes in an atmosphere of 25 ° C. and 30 to 35% humidity to prepare an ionized liquid raw material (S10) do.

On the other hand, the liquid raw material may be more preferably prepared at a ratio of zinc chloride, distilled water, and ion catalyst to 40:55:5 (zinc chloride:distilled water:ion catalyst).

In one embodiment, the most important part in competing composite materials for generating hydroxyl radicals (-OH) is that the ionizing binding material becomes the main cause component. To this end, the liquid raw material is electrolyzed to dissociate zinc chloride (ZnCl ₂ ).

At this time, if the zinc chloride is less than 72 parts by weight, the molar amount of the powder and the binding phase may be insufficient and incomplete bonding may occur.

Next, magnesium oxide (MgO), 135 to 165 parts by weight of alumina (Al ₂ O ₃ ), 90 to 110 parts by weight of titanium dioxide (TiO ₂ ) and 90 to 100 parts by weight of zinc oxide based on 100 parts by weight of the magnesium oxide (ZnO) is mixed to prepare a powder raw material (S20).

The powdered raw material may more preferably include 150 parts by weight of alumina, 100 parts by weight of titanium dioxide, and 100 parts by weight of zinc oxide based on 100 parts by weight of magnesium oxide.

Here, magnesium oxide is a material for obtaining divalent alkaline earth metal magnesium (Mg ²⁺ ) for an ionization catalyst. Also, alumina is a material for obtaining group 13 valent alumina (Al ³⁺ ) for maintaining electrical conductivity and strength.

When titanium dioxide is subjected to an energy (300 to 400 nm) equal to or greater than its own bandgap energy (Eg), electrons in the valence band (VB) are excited and enter the conduction band (CB). , and holes are generated in the valence band, which move to the surface and then oxygen radicals and superoxygen radicals are generated. At this time, the generated -OH oxidizes and decomposes organic compounds or viruses.

Next, the liquid raw material and the powder raw material are put into a polymerization reactor at a weight ratio of 5:4 (liquid raw material: powder raw material) and subjected to a hydration reaction at 6 to 8 ° C. for 90 seconds to prepare a hydration reactant (S30). At this time, preferably, the hydration reaction may be performed for 90 seconds.

At this time, functional metal salts such as Ti(OH) ₂ , Al ₂ (OH) ₃ , and Mg(OH) ₂ may be generated. In addition, since Zn( ²⁺ ) and Mg( ²⁺ ) have similar ionic strength and atomic radius, some Zn( ²⁺ ) atoms in the crystal may be replaced by Mg( ²⁺ ) atoms, which may change the properties of the crystal lattice.

Next, zeolite having an average size of 10 mesh is mixed with the hydration reactant in the emulsion state at a weight ratio of 4:5 (hydration reactant: zeolite) (S40), and stirred in an atmosphere of 17 to 23 ° C. and a humidity of 10 to 15%. , adsorption and deposition of the hydration reactant in the emulsion state on the pores and skin of the zeolite.

At this time, before the adsorption and deposition steps, a step of operating the reaction mixer while maintaining 21 to 23 ° C. by putting zeolite having an average size of 10 mesh and 60% by weight or less into the reaction mixer may be performed first.

Next, the hydration reactant is dried by natural heating (S50) for 30 to 40 minutes to remove by-products and external moisture contained in the hydration reactant and to cure the hydration reactant.

At this time, in the step of adsorption and deposition, the liquid raw material and the powder raw material are put into another reaction mixer and mixed for 3 minutes to prepare a mixed material, and then the mixed material is divided into a reaction mixer with zeolite by 20% by weight at intervals of 30 seconds. It can be done by proceeding with the putting step. If all the mixed materials are put into the reaction mixer at once, a problem of uneven dispersion may occur.

Thereafter, in order to prevent agglomeration of the zeolite granules during the hydration bonding reaction, a process of maintaining the rotation state of the reaction mixer for 1 hour when the hydration bonding reaction is completed may be performed.

Chlorine is weak against heat. According to this method, a separate firing and grinding process is not required, so the ionization coefficient of chlorine can be prevented from lowering. Since it is possible to manufacture an adsorbent material made of , the manufacturing cost can be greatly reduced.

On the other hand, if necessary, after the step of removing by-products and external moisture contained in the hydration reactant, if the temperature is raised to 80 to 90 ° C. and stirring is further performed for 30 minutes, the external moisture contained in the hydration reactant is further removed. While further being removed, the water content of the hydration reaction may be 12 to 15% by weight.

Subsequently, a step of pulverizing the hydration reactant having an adjusted moisture content into powder may be further performed.

In this pulverization, the hydration reactant whose moisture content is controlled is first coarsely pulverized using a cutter mill, etc., and then the coarsely pulverized hydrated reactant is secondarily pulverized into powder having a particle size (D50) of 20 μm or less using ACM or the like, Subsequently, it may be made of a step (S60) of grinding into powder having a particle diameter (D50) of 4 μm or less using a J-Mill or the like.

Conventional adsorbents remove germs and odors using physical adsorption, anions or ozone, but these methods have low efficiency, reliability and stability. In particular, in the case of activated carbon, pollutants may remain after use or bacteria may propagate inside The downside is that they need to be replaced periodically.

The adsorbent material of an embodiment decomposes bacteria and organic substances, which are harmful substances, by photochemical decomposition, and thus has high efficiency, reliability, and stability, is harmless to the human body, has no secondary pollution, and can be used semi-permanently as deodorization and antibacterial functions are continuously maintained. There is an advantage to being

The positively charged metal ions electrostatically interact with the negatively charged microbial components to penetrate the hydrophobic chains into the cell wall and destroy the DNA of the microbial cells. In an embodiment of the adsorption material, metal cations bind to electron-donating groups such as sulfur, oxygen, and nitrogen to suppress the metabolism of microorganisms. That is, the metal cation binds to the protein to cut the covalent link in the protein, and then the protein is precipitated and inhibits the production of enzymes and proteins that bind to DNA to act as a sterilizer.

In addition, the adsorbent material of one embodiment, when in contact with the molecules of the harmful substance, acts with moisture in the air through the oxidation-reduction reaction of metal cations to dissociate the molecules of the harmful substance, and deprives free electrons in the molecule through the decomposition mechanism of the molecule. It can exhibit antibacterial and deodorizing functions by removing the cause of odor by breaking the link of bonding.

Specifically, as TiO ₂ is irradiated with UV, electrons (e ^- ) and holes (h ⁺ ) are generated. In addition, O ₂ in the air reacts with electrons (e ^- ) to generate O ₂ ^- (superoxide ion), and H ₂ O in the air reacts with holes (h ⁺ ) to generate -OH (hydroxy radical). do.

Hydroxyl (OH Radical/Hydroxyl Radical) is a strong oxidizing substance that exists in nature and has excellent sterilization, disinfection, deodorization and decomposition capabilities, enabling sterilization, disinfection, chemical decomposition and removal of most contaminants. The oxidizing power of these hydroxyl groups is second only to fluorine and stronger than ozone/chlorine. Unlike fluorine, chlorine and ozone, hydroxyl groups are natural substances that are not toxic to the human body or harmful to the environment. It is reduced to water, oxygen, carbon dioxide, etc.

Therefore, in the adsorbent material of one embodiment, strong sterilization and decomposition of organic matter are achieved by the reduction action of O ₂ ^- and the oxidation action of -OH. Owing to this action, odorous substances such as ammonia, hydrogen sulfide, methyl mercaptan, or trimetalamine are decomposed into nitrate (NO ₃ ) and sulfate (SO ₄ ), and carbon dioxide and water may be generated.

That is, the adsorbent material of one embodiment not only collects particles that cause odor, but also converts them into a state harmless to the human body when reacting in contact with viruses, harmful substances and odor particles, and returns them to the air, thereby reducing viruses, odors and harmful substances. substances can be removed.

As described above, the adsorption material according to the present invention is an "inorganic"-based composition such as "oxide" and "hydroxide" rather than an "organic"-based composition such as activated carbon, etc., and various "odor-causing" compounds and harmful substances (eg, Hyde, toluene, xylene, Acetic acid, ammonia, “benzene, VOC”, etc.) can be effectively “adsorbed” and “decomposed” by more than 99.9% through oxidation-reduction reactions to make a “big” contribution to “improvement” of “life” and “environment” of users.

According to another embodiment of the present invention, the activated carbon pellets may be made into fine pellets by further cutting the activated carbon pellets into a predetermined size (S80).

Next, when the product manufactured through the above manufacturing process is referred to as the first powder, 225 to 275 parts by weight of activated carbon, 11.25 to 13.75 parts by weight of an ion catalyst (Ca ⁺ ) and 11.25 to 13.75 parts by weight based on 100 parts by weight of the first powder. Part by weight of the binding polymer is mixed and stirred.

At this time, the content of activated carbon can be adjusted in consideration of the use of the filter. The mixed raw material may more preferably include 250 parts by weight of activated carbon, 12.5 parts by weight of an ion catalyst, and 12.5 parts by weight of a binding polymer based on 100 parts by weight of the first powder. In addition, the activated carbon may preferably have an average size of 50 mesh.

The binding polymer may preferably be a water-soluble polymer such as polyacrylamide or polyvinyl alcohol, and serves as an adhesive so that the first powder is easily adhered to the surface and pores of the activated carbon so that the first powder is easily formed by external impact. It serves to prevent separation.

In addition, the stirred mixture may be moved to a main feeder, fed into an extruder by setting an input amount per hour, melted by heating the mixture at a set temperature in the extruder, and then extruded with a die to prepare mixed raw materials (S60).

On the other hand, after the mixed raw material is cut in a die in the form of pellets, the mixed raw material discharged through the exit of the die is moved to an extrusion air cooler to be cooled and extruded by air to manufacture activated carbon pellets (S70).

At this time, the process of crushing and re-extruding the activated carbon pellets may be performed two more times so that the stirred binder and the functional material may be evenly distributed throughout the activated carbon pellets. And, after the final extrusion, dust that is not bound to the activated carbon pellets is removed through a brush.

On the other hand, the step of cutting the activated carbon pellets into a predetermined size may be further performed to produce fine powder having a size of 5 to 10 μm (S80). At this time, strand cutting may be used and the present invention is not limited thereto.

When activated carbon pellets are made into fine powder, they can be used as raw materials in filter manufacturing. At this time, strand cutting may be used in the cutting process, and the present invention is not limited thereto.

<Radiation energy and emissivity test>

2 to 4 are test reports showing the radiant energy and emissivity of the adsorption material prepared according to the second embodiment of the present invention.

Referring to Figures 2 to 4, this test was conducted at 37 ℃, the adsorbent material produced by one embodiment showed a radiant energy of 3.49Υ10 ² W / ㎡ · ㎛ as shown in Table 2, the emissivity is It was found to be 0.906 from 5 to 20 μm.

sample	Test result
	Emissivity (5~20㎛)	Radiant energy (W/㎡·㎛, 37℃
Second embodiment	0.906	3.49 Х 10 2

Comparing the values of one embodiment and the comparative example (sample), the far-infrared radiant energy of the adsorption material produced by one embodiment appears relatively higher, and from this, the adsorption material of one embodiment is fresh and It can be seen that the reliability of the same product is improved and there is a beneficial effect on the human body. Conventional activated carbon has a principle of removing odor-causing compounds through adsorption to ammonia and hydrogen sulfide. On the other hand, the adsorption material including activated carbon according to an embodiment of the present invention has the effect of extending the life of the product by decomposing the cause of the adsorbed harmful gas, restoring the adsorption port of the activated carbon and restoring the iodine value. .

The activation index of the activated carbon can be confirmed by the iodine value, and in the adsorption material according to an embodiment, gas is adsorbed on the activated carbon and the iodine value is lowered. Therefore, it is possible to restore the performance of activated carbon and extend the life of the product.

The adsorbent material according to an embodiment of the present invention can be used, for example, as a material for manufacturing a non-woven fabric filter, a material for manufacturing a functional activated carbon filter, and a basic material for laminated activated carbon pellets for industrial air protection equipment.

<Deodorizing effect test>

5 to 14 are reports of deodorization test results for adsorbent materials according to an embodiment. This test is to determine the ability of the adsorbent material to remove ammonia, toluene, acetic acid, benzene and formaldehyde gas according to an embodiment, and is conducted in accordance with the FITI test guideline FTM-5-2: 2004 and the gas detection tube method did

Specifically, one sample having a size of 20 cm × 10 cm is placed in a tedler bag having a capacity of 5 L, heat-sealed, and a gas having an ammonia concentration of 100 ppm is injected into the tetherer bag containing the sample.

In addition, the ammonia concentration at the time of 2 hours was measured with a detector tube type gas meter and is shown in FIGS. 5 to 14 .

And, for comparison, the ammonia concentration was measured in the same way as the previous procedure without injecting the sample (blank test).

In addition, instead of ammonia, toluene at a concentration of 20 ppm, acetic acid at a concentration of 50 ppm, benzene at a concentration of 50 ppm, and formaldehyde at a concentration of 15 ppm were used to measure the concentration of each component in the same manner as in the ammonia concentration test, and shown in Figures 5 to 14 below showed up

gas type	initial concentration	Test result (After 2 hours)
ammonia	100ppm	95.0
toluene	20ppm	greater than 97.5
acetic acid	50ppm	Greater than 99.9
benzene	20ppm	greater than 97.5
formaldehyde	15ppm	96.4

Referring to Table 2 and FIGS. 5 and 6, in the case of ammonia, the adsorption material according to one embodiment showed a deodorization rate of 95.0% after 2 hours at an initial concentration of 100 ppm. And, see Table 2 and FIGS. 7 and 8 In the case of toluene, the adsorption material according to one embodiment exceeded 97.5% in deodorization rate after 2 hours at an initial concentration of 20 ppm.

And, referring to Table 2 and FIGS. 9 and 10, in the case of acetic acid, the adsorption material according to one embodiment exceeded 99.9% in deodorization rate after 2 hours at an initial concentration of 50 ppm.

And, referring to Table 2 and FIGS. 11 and 12, in the case of benzene, the adsorption material according to one embodiment exceeded 97.5% in deodorization rate after 2 hours at an initial concentration of 20 ppm.

And, referring to Table 2 and FIGS. 13 and 14, in the case of formaldehyde, the adsorption material according to one embodiment showed a deodorization rate of 96.4% after 2 hours at an initial concentration of 15 ppm.

From these results, it can be seen that the adsorption material according to the embodiment has excellent decomposition ability for odor-causing substances such as ammonia, toluene, acetic acid, benzene, and formaldehyde, and thus has an excellent deodorizing effect.

[Examples of evaluation: Escherichia coli ATCC 15922 (E. coli), Salmonella typhimurium KCTC 1925 (Salmonella), Klebsiella pneumonia ATCC 4532 (Standard bacillus), Staphylococcus aureus ATCC 6538 (Staphylococcus aureus), benzene, acetic acid, ammonia, toluene, form Evaluation of antibacterial efficiency against aldehyde]

Antibacterial and harmful gas removal tests for the adsorbent material of an embodiment are Escherichia coli ATCC 15922 (Escherichia coli), Salmonella typhimurium KCTC 1925, Klebsiella pneumonia ATCC 4532 (Streptococcus pneumoniae), Staphylococcus aureus ATCC 6538 (Staphylococcus aureus), benzene, acetic acid , ammonia, toluene, and formaldehyde were performed to determine the antibacterial activity of each component.

This test is conducted according to the ASTM E2149-20 test method.

strain	Test result
	control group		test group		bacterial reduction rate
	initial bacterial count	24 hours later	initial bacterial count	24 hours later
Staphylococcus aureus	1.8×10 5	1.1 × 10 5	1.8×10 5	< 30	99.9
pneumococci	2.0×10 5	1.5 × 10 5	2.0×10 5	< 30	99.9
Salmonella	1.8×10 5	1.5 × 10 5	1.8×10 5	< 30	99.9
Escherichia coli	1.8×10 5	1.5 × 10 5	1.8×10 5	< 30	99.9

As a result of the antibacterial test, in the case of Staphylococcus aureus, as shown in Table 3 and FIGS. 15 to 17, the initial number of bacteria in the control group was 1.8 × 10 ⁵ (number of bacteria / ml) and after 24 hours 1.1 × 10 ⁵ (number of bacteria / ml) decreased, but a large number of bacteria were still identified. On the other hand, the initial number of bacteria in the test group was 1.8×10 ⁵ (number of bacteria/ml) and decreased to less than 30 (number of bacteria/ml) after 24 hours, showing a bacterial reduction rate of 99.9%. And, in the case of bacillus pneumoniae, Table 3 As shown in FIGS. 18 to 20, the initial number of bacteria in the control group was 2.0 × 10 ⁵ (number of bacteria / ml) and after 24 hours it was reduced to 1.5 × 10 ⁵ (number of bacteria / ml), but a large amount of bacteria was still confirmed. On the other hand, the initial number of bacteria in the test group was 2.0×10 ⁵ (number of bacteria/ml) and decreased to less than 30 (number of bacteria/ml) after 24 hours, showing a bacterial reduction rate of 99.9%.

And, in the case of salmonella, as shown in Table 3 and FIGS. 21 to 23, the initial number of bacteria in the control group is 1.8 × 10 ⁵ (number of bacteria / ml) and after 24 hours it decreases to 1.5 × 10 ⁵ (number of bacteria / ml). However, a large number of bacteria were still identified. On the other hand, the initial number of bacteria in the test group was 1.8×10 ⁵ (number of bacteria/ml) and decreased to less than 30 (number of bacteria/ml) after 24 hours, showing a bacterial reduction rate of 99.9%.

And, in the case of Escherichia coli, as shown in Table 3 and FIGS. 24 to 26, the initial number of bacteria in the control group was 1.8×10 ⁵ (number of bacteria/ml) and after 24 hours it was reduced to 1.5×10 ⁵ (number of bacteria/ml), but still A large number of fungi were identified. On the other hand, the initial number of bacteria in the test group was 1.8×10 ⁵ (number of bacteria/ml) and decreased to less than 30 (number of bacteria/ml) after 24 hours, showing a bacterial reduction rate of 99.9%.

Therefore, it can be seen that the adsorption material according to one embodiment has excellent antibacterial activity against Staphylococcus aureus, Klebsiella pneumoniae, Salmonella and Escherichia coli.

In addition, as a result of the harmful gas removal test, the adsorbent material of one embodiment had a deodorization rate of 95.0% in ammonia, more than 97.5% in toluene, more than 99.9% in acetic acid, more than 97.5% in benzene, and 96.4% in formaldehyde after 2 hours. It can be seen that there is an excellent deodorizing effect.

This is an excellent result compared to copper, silver nano, and zeolite, which are existing materials with antibacterial function. Therefore, the adsorption material of one embodiment is an OH radical generating catalyst developed in inorganic solid form generated through a hydration reaction rather than physical / electrical OH radicals. It can be seen that it has excellent antibacterial properties. This is considered to be a material function that has not been confirmed in conventional ethyl alcohol or chlorine-based materials.

Therefore, the adsorption material of the present invention prepared as described above can be used as a material to enhance the function of various products, for example, it can be used as a material for filters, fibers, polymer-bonded films, plastics, building materials, and various functional household items. can

The present invention is not limited by the above-described embodiments. Therefore, various forms of substitution, modification, and change will be possible by those skilled in the art within the scope of the technical spirit of the present invention described in the claims, which also falls within the scope of the present invention. something to do.

explanation of code

S10: liquid raw material preparation step

S20: Powder raw material preparation step

S30: mixing liquid raw materials and powder raw materials

S40: zeolite mixing step

S50: spontaneous heating step

S60: step of preparing mixed raw materials

S70: pellet manufacturing step

S80: fine powder manufacturing step

Claims (5)

1. 22 to 25 ℃ distilled water (H ₂ O) and 8 to 10 parts by weight of Ca ⁺ ion catalyst based on 100 parts by weight of distilled water are added to the mixer and mixed for 60 seconds, and then 72 to 74 parts by weight of chloride based on 100 parts by weight of distilled water preparing a liquid raw material by adding zinc (ZnCl ₂ ) and mixing for 10 to 12 minutes in an atmosphere of 25° C. and a humidity of 30 to 35%;

   Preparing a powder raw material by mixing magnesium oxide (MgO), 135 to 165 parts by weight of alumina (Al ₂ O ₃ ), and 90 to 110 parts by weight of titanium dioxide (TiO ₂ ) based on 100 parts by weight of the magnesium oxide;

   Preparing a hydration reaction product in an emulsion state by putting the liquid raw material and the powder raw material in a polymerization reactor at a weight ratio of 5:4 (liquid raw material: powder raw material) and subjecting the hydration reaction to hydration at 6 to 8 ° C. for 90 seconds;

   A zeolite having an average size of 10 mesh is mixed with a hydration reactant in an emulsion state at a weight ratio of 4:5 (hydration reactant:zeolite), and stirred in an atmosphere of 17 to 23 ° C. and a humidity of 10 to 15% to form pores and skin of the zeolite adsorbing and depositing a hydration reactant in an emulsion state on the phase; and

   drying the hydration reaction product by natural heat for 30 to 40 minutes to remove by-products and external moisture contained in the hydration reaction product; Through, to prepare a first powder,

   A mixture was prepared by mixing the first powder and 225 to 275 parts by weight of activated carbon, 11.25 to 13.75 parts by weight of an ion catalyst, and 11.25 to 13.75 parts by weight of a binding polymer based on 100 parts by weight of the first powder, and the mixture was heated and melted. After extruding to prepare a mixed raw material; Adsorption material manufacturing method comprising a.
2. According to claim 1,

   Prior to the adsorption and deposition steps, a step of operating the reaction mixer while maintaining 21 to 23 ° C. by putting zeolite having an average size of 10 mesh and less than 60% by weight into the reaction mixer,

   The step of adsorption and deposition is to prepare a mixed material by putting a liquid raw material and a powder raw material into another reaction mixer and mixing them, and then dividing the mixed material into a reaction mixer with zeolite by 20% by weight at intervals of 30 seconds; and

   Maintaining a rotational state of the reaction mixer for 1 hour to prevent intergranular agglomeration of zeolite; Characterized in that, the adsorption material manufacturing method comprising a.
3. According to claim 1,

   After the step of removing by-products and external moisture contained in the hydration reaction product, increasing the temperature to 80 to 90 ° C. and further stirring for 30 minutes so that the moisture content in the hydration reaction product is 12 to 15% by weight ; and

   Grinding the hydration reactant whose moisture content is controlled into powder; Characterized in that it further comprises, the adsorption material manufacturing method.
4. According to claim 1,

   Cutting the mixed raw material in a die, cooling and extruding it in an extrusion air cooler to make activated carbon pellets; Characterized in that it further comprises, the adsorption material manufacturing method.
5. According to claim 4,

   Cutting the activated carbon pellets into fine powder; Characterized in that it further comprises, the adsorption material manufacturing method.

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