KR102146794B1 - foam ceramic fabrication and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a method for manufacturing a bioceramic, and more particularly, has excellent thermal insulation, ultra-lightweight, non-flammable, gas-hazardous, thermal conductivity, and deodorization , and improves immune function through far-infrared emissivity, radiation energy, anion generation, and antibacterial performance. It relates to a method of manufacturing a bioceramic that provides an effect of improving inflammation .

Description

Bioceramic and its manufacturing method TECHNICAL FIELD

The present invention relates to a method of manufacturing a bioceramic, and more particularly, has excellent thermal insulation, ultra-lightweight, non-flammable, gas hazard, thermal conductivity, and deodorization, and improves immune function through far-infrared emissivity, radiation energy, anion generation, and antibacterial performance. It relates to a method of manufacturing a bioceramic that provides an inflammation improvement effect.

Foamed ceramics are in the spotlight as a material that can replace ultra-light weight artificial aggregates and stones by foaming ceramics. The foamed ceramic manufacturing technology is based on the technology of mixing several raw materials such as ordinary clay and loess, zeolite and alumina, etc. to suit the purpose, allowing free adjustment of strength expression, number and size of pores, and shape and size of products. There are possible features. In addition, the specific gravity of 0.4 to 0.9 can be freely manufactured based on the blending of raw materials and firing technology.

The greatest technical value of manufacturing foamed ceramics is the mixing and firing process of raw materials, i.e., the preheating curve in the preheating zone and the melting time adjustment at the melting point, control of the foaming gas, and the temperature yield in the cooling section. It is summarized as an adjustment. In addition, it is possible to manipulate specific gravity, size, shape, and air bubbles through adjustment of time and temperature for each step.

Foamed ceramics can be used as a finishing material that can replace an ultra-light artificial aggregate with a specific gravity of 0.5 and a plate-shaped stone, and as a wood substitute using the ease of processing and cutting.

In addition, by using the foamed ceramic produced, it can be applied for various purposes using sound absorption, heat insulation, and light weight peculiar to the foamable material.

Conventionally, lightweight bioceramics have been developed using waste resources, but there is a disadvantage in that the defect rate is high due to excessive pores during expansion of foam. There is also an aspect of the use of waste resources, but it is also known that harmful substances are released over a long period of time. With the development of the current technology, materials that exhibit the effects of insulation and sound insulation are widely distributed, but most have properties that are weak against heat and are the main cause of generating toxic gases in case of fire.

Meanwhile, since the 18th century, the scientific community has considered light as a wave. In December 1900, the German physicist "Max Planck" revealed that light is a particle, a grain of energy, that the quantum of light is intermittently transmitted. At the beginning of the 20th century, physicists learned that breaking down matter becomes a molecule, breaking down a molecule becomes an atom, and breaking down an atom becomes an atomic nucleus and an electron. In the process of identifying electrons, it was proved that electrons also have duality between particles and waves. All substances that exist have a dual structure of particles and waves. Quantum is known as the smallest unit of energy that can no longer be divided. When super-quantum fields overlap, they change into wave stages, when waves overlap, they change into energy, when energy overlaps, when elementary particles overlap, they become atoms, when atoms overlap, they become molecules, and when molecules overlap, they become substances.

In other words, as all matters (people, animals, plants, etc.) are formed into matter through wave and energy stages by the superposition of super-quantum fields, life including humans is activated in the area where super-quantum fields are superimposed quantum energy. On the other hand, in an area where there is no quantum energy and the super-quantum field does not overlap, people and all life cannot be activated and become sick and die.

Living in a dimensional reality, we recognize everything through our senses (the five senses) and think that it is all, but when we enter the microscopic world under elementary particles (atomic nuclei, electrons), the smallest unit of all matter, the world Exists in the world.

When it comes to the micro (ultra-micro) world, all matter is not a stuffed material, but consists of electrons that revolve around the atomic nucleus.

Through the activity of electrons rotating around the atomic nucleus, which is an elementary particle, an electromagnetic field is formed around the nucleus, and minute quantum energy containing the specific information of the substance is emitted.These quantum energy fields contain the inherent information about the natural, physical, or mental Information is exchanged through waves. Einstein also said that when we split and split the material of this world in which we live through quantum physics, they are eventually connected to each other by a vibrating energy field.

The bioceramic of the present invention, which emits far-infrared rays, generates quantum wave energy to deliver a thermal effect, as well as relieves pain, improves immunity, and improves blood circulation in a cold body.

1. Korean Patent Application Publication No. 10-2012-0077746 2. Korean Patent Registration No. 10-1067371 3. Korean Patent Registration No. 10-1220726 4. Korean Patent Registration No. 10-0803513 5. Korean Patent Registration No. 10-1383875

Accordingly, the present invention has been conceived to solve the above problems, and an object of the present invention is to provide a method for manufacturing a bioceramic having excellent performance in heat insulation, ultra lightness, non-combustibility, gas hazard, thermal conductivity, and deodorization.

The present invention is to provide a bioceramic manufacturing method that provides an effect of improving immune function and improving inflammation through far-infrared emissivity, radiation energy, anion generation, and antibacterial performance.

The problem to be solved of the present invention is not limited to those mentioned above, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

To this end, the bioceramic manufacturing method according to the present invention includes step S1 of pulverizing perlite and then heating to a temperature of 850 to 950°C to prepare foamed silica; S2 step of mixing and then molding 20 to 40 parts by weight of the inorganic binder based on 100 parts by weight of the foamed silica; It characterized in that it comprises a; S3 step of firing the molded body subjected to the S2 step at a temperature of 900 ~ 1,200 ℃.

In addition, in the bioceramic manufacturing method according to the present invention, the inorganic binder in step S2 is characterized in that it consists of 100 parts by weight of clay and 40 to 60 parts by weight of water.

In addition, in the bioceramic manufacturing method according to the present invention, the inorganic binder of step S2 is 100 parts by weight of Attapulgite, 30 to 50 parts by weight of hollow body, 5 to 15 parts by weight of foaming agent, and 50 to water. It consists of 70 parts by weight, and the step S3 is characterized in that the molded body is foamed while being fired.

In addition, in the bioceramic manufacturing method according to the present invention, the mixture of step S2 further comprises 10 to 30 parts by weight of an inorganic filler of at least one of diatomaceous earth, bentonite, zeolite, and alumina based on 100 parts by weight of the foamed silica. do.

In addition, in the bioceramic manufacturing method according to the present invention, the hollow body is a hollow silica powder coated with silica fume on the surface, and the blowing agent is silicon carbide or calcium carbonate.

Accordingly, the present invention has been devised to solve the above problems, and the bioceramic manufacturing method according to the present invention is excellent in thermal insulation, ultralightness, non-combustibility, gas hazard, thermal conductivity, and deodorization.

In addition, the present invention relates to a method for manufacturing a bioceramic that provides an effect of improving immune function and improving inflammation through far-infrared emissivity, radiation energy, generation of negative ions, and antibacterial performance.

The effects of the present invention are not limited to those mentioned above, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a process diagram showing each step of the method for manufacturing a bioceramic according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to intentions or precedents of users or operators. Therefore, the definition should be made based on the contents throughout this specification.

1 is a process diagram showing each step of the method for manufacturing a bioceramic according to the present invention.

Referring to Figure 1, the bioceramic manufacturing method according to the present invention is largely crushed perlite and then heated to a temperature of 850 ~ 950 ℃ step S1 to prepare foamed silica, and the inorganic binder 20 based on 100 parts by weight of the foamed silica It may be exemplified that including: S2 step of mixing ~40 parts by weight and then molding, and S3 step of sintering the molded body through the S2 step at a temperature of 900 to 1,200°C.

In the S1 step, perlite, a type of igneous rock, is crushed, preheated at a temperature of 80 to 90°C for 20 to 30 minutes, then rapidly heated to a temperature of 850 to 950°C so that it is foamed by the crystal water contained therein, and then cooled. This is the step of preparing foamed silica.

In the conventional bioceramic manufacturing process, as disclosed in Korean Patent Laid-Open No. 10-0803513, ceramic panels were manufactured by mixing ceramic raw materials with a foaming agent, molding, and then firing and foaming. However, in this case, cracks occurred during firing. Although there were problems such as occurrence or clumping of molded bodies together, in the present invention, in step S1, perlite, one of the raw materials for bioceramics, is first first foamed, then mixed with the remaining materials, and then calcined. You can solve the problem.

The step S2 is a step of mixing the foamed silica stone, an inorganic binder, and an inorganic filler.

The inorganic filler is mixed with 10 to 30 parts by weight based on 100 parts by weight of the foamed silica, and at least one of diatomaceous earth, bentonite, zeolite, and alumina may be selected.

It is preferable that the inorganic binder is 20 to 40 parts by weight based on 100 parts by weight of the foamed silica, but if it is less than 20 parts by weight, there is a problem that the moldability is also poor and the bonding force is rapidly deteriorated, and if it exceeds 40 parts by weight, the porosity is low. It is preferable to limit it to the above-described range because it becomes difficult to provide light weight due to an increase in the density of the product.

In the present invention, two inorganic binders are presented.

The first inorganic binder may be exemplified by 100 parts by weight of illite or montmorillonite and 40 to 60 parts by weight of water.

The second inorganic binder may be exemplified by 100 parts by weight of attapulgite, 30 to 50 parts by weight of a hollow body, 5 to 15 parts by weight of a foaming agent, and 50 to 70 parts by weight of water.

The difference between the two inorganic binders is that only pores are formed by the primary foaming in the manufacturing process of foamed silica, because the second foaming is not performed in the case of the first inorganic binder, whereas the second inorganic binder is In addition to the first foaming in the manufacturing process, since the second foaming is performed, the porosity can be significantly increased.

Hereinafter, a description will be given focusing on the second inorganic binder.

The attapulgite is a clay mineral and has a chemical formula of (Mg,Al) ₅ Si ₈ O ₂₀ .4H ₂ O), and unlike illite or montmorillonite, it is acicular, and a tunnel by a chain structure of a silicic acid tetrahedron. )As it has a structure and contains water molecules in the tunnel, it not only plays a role in improving the foaming performance during firing by water molecules contained inside, but also plays a role of improving the moldability through viscosity control during molding in the S2 stage. .

The hollow body may be exemplified as a hollow silica powder having an average particle diameter of 50 ~ 300㎛.

Hollow silica powder may be exemplified by mixing silica and calcium oxide and melting, then quenching to pulverize, and foaming the pulverized particles, but is not limited thereto, and spray pyrolysis, sol-gel process, etc. It can be prepared by a known method.

The hollow silica powder is preferably a composite structure in which silica fume is coated on the surface after being impregnated with a solution comprising silica fume and a solvent, which are recycled resources, and then dried. The silica fume not only improves dispersibility by preventing the hollow silica powder from sticking to each other, but also serves to improve the durability of the hollow silica powder.

The blowing agent may be a silicon carbide or calcium carbonate.

Since the foaming mechanism of the silicon carbide is described in detail in Registration Patent No. 10-1067371 and the foaming mechanism of calcium carbonate in Patent Publication No. 10-2012-0077746, detailed descriptions thereof will be omitted.

On the other hand, silica fume is also disclosed in Korean Patent Application Publication No. 10-2012-0077746, but since it is an ultrafine particle having a size of 1 to 3 μm, it is difficult to disperse due to the phenomenon of coagulation. In particular, in the dry molding method as in the present invention, It is preferable to apply a method of coating the hollow silica powder rather than mixing separately as described above.

The bioceramic of the present invention can be used as a heat sink for a building interior or a warmer. In particular, when used as a heat sink for a warmer, a coating solution containing functional particles is sprayed on the surface of the bioceramic to maximize the heating effect, and then dried or applied to the coating solution. After being immersed and dried, the functional particles may be attached or inserted into the surface of the bioceramic or part of the internal pores.

The functional particles have an average particle diameter of 100 to 500 nm, and are composed of an oil inside and a silica shell accommodating the oil, wherein the oil is an example of a mixture of 10 to 30 parts by weight of peony extract based on 100 parts by weight of the base oil can do.

The base oil is preferably a lavender oil having an effect of preventing inflammation, sterilization and disinfection, preventing convulsions, alleviating pain, and preventing toxicity. The peony extract is obtained by hot water extraction after drying the peony root, and is effective in relieving menstrual irregularities and pain in women. In addition, paeoniflorin, which is known as the main ingredient, is known to be effective in analgesic, sedative, anti-inflammatory, lowering blood pressure, vasodilation, and smooth muscle relaxation.

The functional particles are prepared by mixing 1 to 10 parts by weight of oil and 0.1 to 1 part by weight of sucrose fatty acid ester in 100 parts by weight of water. In addition, 0.1 to 1 parts by weight of diethoxydimethylsilane and 0.1 to 1 parts by weight of epichlorohydrin are added to the emulsion, followed by stirring, and then 10 to 20 parts by weight of water glass can be reacted while adding little by little for 5 to 10 hours. A coating solution containing functional particles is prepared by mixing 1 to 5 parts by weight of gum arabic based on 100 parts by weight of the final product.

When the bioceramic is heated, the peony extract and lavender oil filled in the silica shell of the functional particles release the active ingredients of the peony extract together with the lavender oil, thereby exerting efficacies such as physiological impurities and anti-inflammatory.

Hereinafter, a method for manufacturing a bioceramic according to the present invention will be described in detail through more preferred embodiments.

The powder obtained by pulverizing perlite into 130-140㎛ is preheated at 85℃ for 25 minutes, and then rapidly heated at 890~900℃ to prepare foamed silica which expands by 11-12 times by volume.

Based on 100 parts by weight of foamed silica, 30 parts by weight of an inorganic binder and 20 parts by weight of an inorganic filler are mixed and then compression molded. Here, the inorganic binder is composed of 40 parts by weight of silica fume-coated hollow silica powder, 10 parts by weight of calcium carbonate, and 50 parts by weight of water based on 100 parts by weight of attapulgite, and the inorganic filler consists of diatomaceous earth and zeolite in a weight ratio of 1:1. The mixture was used.

The molded body is fired at a temperature in an electric furnace of 950° C. to complete bioceramic production.

[Experimental Example 1]

The density, flexural strength, and flexural strength when wet of the bioceramic of Example 1 were measured, and the results are shown in Table 1 below.

-The density was measured by KSF 2459:2002, the flexural strength and wet flexural strength were measured by KSF3200:2006, and the total water absorption was measured by KSF 3504:2003.

Test Items Density (g/cm3) Flexural strength (N/㎟) Flexural strength when wet (N/㎟) Total absorption rate (%) Example 1 0.32 2.5 2.3 89

Referring to Table 1 above, it can be seen that the bioceramic density of Example 1 is 0.32g/cm3, which has ultra-light weight and excellent strength when compared to 0.44g/cm3 of Korean Patent Application Publication No. 10-2012-0077746. have. And looking at the total water absorption rate of the bioceramic in Example 1, it can contain moisture up to 89% of its own weight, so it discharges moisture during drying and absorbs moisture in a humid climate to control the humidity in the construction space. You can confirm that it is.

[Experimental Example 2]

The non-flammability test of the bioceramic of Example 1 was conducted, and the results are shown in Table 2 below.

-The non-flammability test was measured according to KSF ISO 1182: 2004.

Test Items Mass reduction rate (%) Furnace temperature rise (℃) Flame duration (s) standard 30% or less 20℃ or less 10sec or less Example 1 0.3 1.9 0

Referring to Table 2 above, Ministry of Construction and Transportation Notice No. 2006-476 Standards for Flame Retardant Performance of Building Interior Finishing Materials Article 2 Clause 1 Non-combustible materials are regulated by a mass reduction rate of 30% or less, a temperature rise of 20K or less, and a flame duration of 10. Although it is specified to be less than seconds, it was confirmed that the bioceramic of Example 1 greatly exceeded the standards for flame retardant performance.

[Experimental Example 3]

The gas hazard test of the bioceramic of Example 1 and the indoor air quality recommendation standard (related to Article 7 2) of the new apartment house were tested, and the results are shown in Table 3 below.

-Gas hazard test was measured by KSF 2271: 2006.

Test Items Gas hazard test
(Mouse stop time) Total Volatile Organic Compounds (TVOC)
(mg/㎡,h) Formaldehyde (HCHO)
(mg/㎡,h) standard 9 minutes or more 4.0 1.25 Example 1 17.93 minutes 0.01 Tr

Referring to Table 3 above, in the case of the gas hazard test, the stoppage time of the rat in Article 2 (2) of Construction Notification No. 2006-476 is stipulated to be 9 minutes or longer, but the bioceramic of Example 1 is at least 15 minutes 93 It was confirmed that the total volatile organic compounds (TVOC) and formaldehyde (HCHO) (mg/m 2 ,h) were significantly higher than the second and satisfies the criteria.

[Experimental Example 4]

The thermal conductivity test of the bioceramic of Example 1 was performed, and the results are shown in Table 4 below.

-The thermal conductivity test was measured by KSL9016:2005.

Test Items Thermal conductivity (w/mK) Example 1 0.059

Referring to Table 4 above, it can be seen that the thermal conductivity (w/mK) of the bioceramic of Example 1 is 0.059, and the thermal conductivity is significantly improved when compared to 0.12 of Korean Patent Application Publication No. 10-2012-0077746.

[Experimental Example 5]

The deodorizing performance test of the bioceramic of Example 1 was conducted, and the results are shown in Table 5 below.

-BLANK in Table 5 below is a value measured without a sample, and the test method is KFIA-1004, the test gas is ammonia gas, and the gas concentration is measured using a gas detection tube.

Test Items Elapsed time (minutes) BLANK concentration (ppm) Sample concentration (ppm) Deodorization rate (%)

Deodorization test

Early 500 500 - 30 490 45 91 60 480 35 93 90 460 25 95 120 450 20 96

Referring to Table 5 above, it can be seen that the bioceramic of Example 1 exhibits very excellent deodorization performance with a maximum deodorization rate of 96%.

[Experimental Example 6]

The far-infrared emissivity, radiation energy, and anion generation amount of the bioceramic of Example 1 were measured, and the results are shown in Table 6 below.

-The test method of far-infrared ray emissivity and radiation energy is KFIA-FI-1005, the test method of Korea Far-Infrared Application Evaluation Research Institute, which is the measurement result compared to the BLANK BODY using FT-IR spectrometer at 40℃. FI-1042 was tested using a charged particle measuring device at room temperature of 23°C and humidity of 32% in the air at 102/cc of number of negative ions. The result is the number of ions per unit volume by measuring negative ions emitted from the object to be measured.

Test Items Far infrared ray emissivity (5~20㎛) Radiation energy (w/m,㎛40℃) Anion (ION/CC) Example 1 0.921 3.71×10 ² 1.030

Referring to Table 6 above, it can be seen that the bioceramic of Example 1 exhibits excellent far-infrared radiation and negative ions.

[Experimental Example 7]

An antibacterial test was performed on the bioceramic of Example 1, and the results are shown in Table 7 below.

-The thermal conductivity test was measured by KSL9016:2005.

Test Items Sample classification Initial concentration Concentration after 24 hours Bacteriostatic reduction rate (%) E. coli
Antibacterial test BLANK 3.2×10 ⁶
1.4×10 ⁶ - Example 1 1.0×10 ⁵ 92.1 Pseudomonas aeruginosa
Antibacterial test BLANK 3.3×10 ⁶
1.5×10 ⁶ - Example 1 9.5×10 ⁴ 93.7

Referring to Table 7 above, it can be seen that the bioceramic of Example 1 exhibits excellent antibacterial performance.

Meanwhile, in the detailed description of the present invention and the accompanying drawings, specific embodiments have been described, but the present invention is not limited to the disclosed embodiments, and the technical idea of the present invention is given to those of ordinary skill in the art. Various substitutions, modifications and changes are possible within the range not departing from. Therefore, the scope of the present invention is limited to the described embodiments and should not be defined, and should be construed as including the claims and equivalents as well as the claims to be described later.

Claims (6)

Step S1 of pulverizing the perlite into 130 ~ 140㎛, preheating for 20 ~ 30 minutes at a temperature of 80 ~ 90 ℃ and then heating to a temperature of 850 ~ 950 ℃ to prepare a foamed silica stone;
100 parts by weight of attapulgite based on 100 parts by weight of foamed silica, 30 to 50 parts by weight of a hollow body composed of hollow silica powder having a particle diameter of 50 to 300 μm coated with silica fume on the surface, 5 to 15 parts by weight of a foaming agent, and S2 step of mixing 20 to 40 parts by weight of an inorganic binder consisting of 50 to 70 parts by weight of water and 10 to 30 parts by weight of an inorganic filler selected from diatomaceous earth, bentonite, zeolite, and alumina;
A method for producing a bioceramic, comprising a; S3 step of firing and foaming the molded body after the S2 step at a temperature of 900 to 1,200°C.
delete delete delete The method of claim 1,
Bioceramic manufacturing method, characterized in that the blowing agent is silicon carbide or calcium carbonate.
A hollow body 30 to consisting of 100 parts by weight of foamed silica, 100 parts by weight of attapulgite, and a hollow silica powder having a particle diameter of 50 to 300 µm coated with silica fume on the surface, prepared by the manufacturing method of claim 1 or 5 50 parts by weight, 5 to 15 parts by weight of a foaming agent, and 20 to 40 parts by weight of an inorganic binder consisting of 50 to 70 parts by weight of water and at least one of diatomaceous earth, bentonite, zeolite, and alumina is composed of 10 to 30 parts by weight of an inorganic filler selected. Bio ceramic.

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