WO2014025210A1 - 팽창 퍼라이트를 이용한 저밀도 무기질 파우더 단열재, 이의 제조 방법 및 이의 성형기 - Google Patents
팽창 퍼라이트를 이용한 저밀도 무기질 파우더 단열재, 이의 제조 방법 및 이의 성형기 Download PDFInfo
- Publication number
- WO2014025210A1 WO2014025210A1 PCT/KR2013/007140 KR2013007140W WO2014025210A1 WO 2014025210 A1 WO2014025210 A1 WO 2014025210A1 KR 2013007140 W KR2013007140 W KR 2013007140W WO 2014025210 A1 WO2014025210 A1 WO 2014025210A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- expanded perlite
- insulation
- inorganic powder
- low density
- manufacturing
- Prior art date
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- 235000019362 perlite Nutrition 0.000 title claims abstract description 108
- 239000010451 perlite Substances 0.000 title claims abstract description 107
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 153
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- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 description 1
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/04—Heat treatment
- C04B20/06—Expanding clay, perlite, vermiculite or like granular materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/12—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein one or more rollers exert pressure on the material
- B28B3/126—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein one or more rollers exert pressure on the material on material passing directly between the co-operating rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/40—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material
- B28B7/44—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material for treating with gases or degassing, e.g. for de-aerating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0005—Details of, or accessories for, presses; Auxiliary measures in connection with pressing for briquetting presses
- B30B15/0017—Deairing means
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B30/00—Compositions for artificial stone, not containing binders
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/78—Heat insulating elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/78—Heat insulating elements
- E04B1/80—Heat insulating elements slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B2001/742—Use of special materials; Materials having special structures or shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/028—Composition or method of fixing a thermally insulating material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/06—Arrangements using an air layer or vacuum
- F16L59/065—Arrangements using an air layer or vacuum using vacuum
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Definitions
- the present invention relates to a method for producing an inorganic powder insulating material having a low density molded structure using an expanded perlite without using a binder, and a molding machine thereof.
- the expanded perlite is formed using a high speed mixer.
- the present invention relates to a heat insulator made of irregular glass shard-shaped perlite particles and evenly dispersed to form a structural framework between synthetic silicas to improve the molding strength even at low density and to reduce the thermal conductivity.
- compression molding is performed by using a molding machine equipped with a perforated plate and a filter, or by manufacturing a compressed material having a molded structure using expanded perlite through a compression roller. Expansion pu with excellent physical properties Method of manufacturing a low-density inorganic insulator powder having a forming structure using a byte and to a molding thereof.
- Synthetic silica is mostly made of nano-sized particles to which nano-sized particles are attached, thereby forming a high specific surface area by nano-sized particles. By compression-molding this to give a large specific surface area therein, it is possible to produce a heat insulating material having a low thermal conductivity and good heat insulating performance.
- the heat insulating material thus prepared may be used alone or may be used by reinforcing strength with an outer shell material such as glass fiber, or sealed with an outer shell material of a multilayer film made of aluminum to be used as a vacuum insulation.
- the key to the synthetic silica insulation is its low thermal conductivity due to the large specific surface area due to the small pores formed therein, so that the thermal insulation performance is good.
- a binder is used to have moldability. Even though a small amount of binder is used, the internal specific surface area is reduced by the binder. In particular, particles having a lot of internal pores, such as synthetic silica, are not easily distributed evenly because of the large absorption of the liquid binder.
- inorganic fibrous mats are used as outer materials, but synthetic silica itself can be used at 800 ⁇ 900 ° C or higher, but inorganic fiber has a limit in using temperature depending on its type. Increasing and additional processing is a factor in rising insulation prices.
- General glass fiber has a limit of using temperature of about 650 °C, ceramic fiber can be used at 800 ⁇ 900 °C or more, but the price is expensive because the use of biodegradable material that is safe for human body.
- vacuum insulator core material having a thermal insulation property of less than 0.005 W / mK by vacuuming the inside of the outer shell material of the multilayer film of aluminum material by vacuuming the inside.
- the key to vacuum insulation depends on its long-term durability, which is whether the internal vacuum is compromised.
- the vacuum degree damage is caused by damage to the outer material and out gassing, and in the case of outgassing, it is caused by internal moisture, organic matters, and the like. Of course, this can be prevented by getters, but it's not perfect.
- Korean Patent Application Publication No. 10-2011-0042019 "Insulation material and its manufacturing method” in order to avoid the use of binders, alkaline earth metal hydroxides and alkali metal hydroxides, but the high humidity curing and drying method again, this is proposed The process is complicated and moisture absorption occurs as a heat insulator during high humidity curing.
- Korean Patent Application Publication No. 10-2010-0083543 "Method of manufacturing a highly flexible insulating material reinforced with fibers of a nonwoven fabric on a silica airgel, and an insulating material produced by the method," a nonwoven fabric made of chemical fiber, carbon fiber, glass fiber, etc.
- a method of preparing a film in a state and applying an organic adhesive to a nonwoven film, adsorbing silica airgel thereon, stacking the heat insulating material thus prepared, and stitching it using a needle having a W shape is proposed.
- the organic adhesive is not partially absorbed into the silica airgel, but the process is complicated, and the manufacturing cost is high, and there is a problem of dust generation due to weak bonding strength with the organic adhesive after manufacture.
- the low density inorganic powder insulation manufacturing method of the present invention in the production of synthetic silica insulation by forming a structural framework between the synthetic silica using expanded perlite, improve the limit of reinforcement by fibers, without using a binder,
- the purpose is to prevent shrinkage of the internal specific surface area and to produce low density insulation.
- the present invention does not use a binder, it is intended to contribute to economical and good physical properties by preventing the reduction of the internal specific surface area and by having a moldability at a low density.
- the insulation prepared by the present invention comprises 50 to 98% by weight of synthetic silica and 2 to 50% by weight of expanded perlite, which are compression molded in a mixed state while the fine synthetic silica is coated and dispersed on the glass fragmented expanded perlite surface. It is characterized by.
- the expanded perlite is fragmented from 300 ⁇ m to 1 ⁇ m by a high speed mixer of 1000 rpm or more, and the synthetic silica particles are coated and dispersed in the fragmented expanded perlite.
- the expanded perlite particles form a structural framework of the shaped body.
- An upper plate including an upper perforated plate having a plurality of perforations formed therein, an upper filter positioned on the upper perforated plate, and an upper press plate positioned on the upper filter;
- a lower plate including a lower perforated plate having a plurality of perforations formed therein, a lower filter positioned under the lower perforated plate, and a lower press plate positioned under the lower filter;
- a side plate forming side walls of the upper plate and the lower plate.
- the heat insulating material is compression molded using a molding machine which prevents the structure formed after the mixing from being changed and prevents the structural frame of the expanded perlite from being severely damaged. Furthermore, a method of simultaneously compressing from the top and the bottom can be used to improve the density deviation of the top and bottom and the uneven internal specific surface area of the molded core material.
- the inorganic powder insulation material having a low density molded structure having a low density molded structure excellent in thermal insulation performance is obtained by excellent molding strength and prevention of density deviation even at low density. It can manufacture.
- Figure 1A is a photograph taken with an electron microscope of the cut surface of the heat insulating material produced by the present invention.
- FIG. 1B is a partially enlarged photograph of FIG. 1A.
- FIG. 1B is a partially enlarged photograph of FIG. 1A.
- Figure 1C is a photograph taken by electron microscopy of the agglomerated site of the silica during the simple mixing molding.
- FIG. 1D is a photograph taken by electron microscopy of a portion of the cut surface where agglomerates are formed during simple mixing molding.
- FIG. 2 is a cross-sectional view of a compression molding machine according to the present invention.
- FIG 3 is a view showing the discharge flow of pressure and air generated during compression molding with a molding machine according to the present invention.
- FIG. 4 is a view showing the discharge flow of pressure and air generated during compression molding with a conventional molding machine.
- FIG. 5 is a view illustrating a compression flow using a compression roller.
- Low density inorganic powder insulation having a molded structure using expanded perlite in the present invention for achieving the above object comprises 50 to 98% by weight of synthetic silica, 2 to 50% by weight of expanded perlite.
- a powder containing 50 to 98% by weight of synthetic silica and 2 to 50% by weight of expanded perlite is dispersed and pulverized simultaneously with a high speed mixer of 1000 rpm or more, so that the fine synthetic silica particles are coated on the surface of the expanded fragmented glass of perlite particles.
- the internal pressure removal is compression molding with a smooth molding machine to produce a core material; two stages.
- the inorganic powder mixed after the step 1 is prepared as a compressed material through a compression roller.
- a molded article having a specific surface area inside has a lower thermal conductivity.
- the reason is that the specific surface area formed inside the core blocks the influence of convection, thereby preventing heat transfer.
- conduction is a property of the material itself, so it has a constant value. In order to minimize the effect of this conduction, it is best to reduce the area reduction and density of the structure forming the internal specific surface area.
- the present invention is to prevent the lowering of the internal specific surface area by the binder and to overcome the limitations of the fiber, and to produce a lower density heat insulating material.
- the expanded perlite collectively refers to natural minerals such as pearl rock, pine rock, obsidian, and pumice, which vitrify the surface in a high temperature flame and expand by vaporizing moisture (crystal water) inside.
- the shape of the expanded perlite particles is characteristic according to the size and distribution of the particles before expansion and the amount of crystal water according to the drying, the prepared expanded perlite is composed of a myriad of cells inside the particle has a large specific surface area, It has a low specific gravity and has suitable conditions as a heat insulating material.
- Synthetic silica is an inorganic material with excellent insulation property with a purity of 90% or more of silica content, and its particles collectively include several tens of micrometers of fumed silica, porous silica, aerogel, white carbon, etc. It can be given.
- the expanded perlite has a large particle, the synthetic silica has a small particle, and there is a difference in density between the particles. Therefore, the expanded perlite shows agglomeration or layer separation due to the size and density of the particles rather than a uniform distribution during simple mixing.
- the expanded perlite is dispersed between the synthetic silicas by crushing the expanded perlite to an appropriate size on a high speed mixer, thereby forming a structure that serves as a structural framework between the synthetic silicas.
- synthetic silica is in the form of agglomerates of several tens of micro-sizes due to high moisture hygroscopicity in the atmosphere or electrostatic attraction between particles, but the particles can be instantly separated by external strong force or pressure.
- the coating and dispersing of the synthetic silica particles on the surface of the perlite particles crushed at 1 to 300 ⁇ m results in instantaneous separation and dispersion of the synthetic silica to its original size by the high rpm and force of the high speed mixer.
- the fine particles to be attached to the coating to eliminate the phase separation of the synthetic silica and perlite to form a structure of the glass fragments expanded perlite and synthetic silica having a size of 1 ⁇ 300 ⁇ m.
- (A) is an electron micrograph of a synthetic silica and expanded perlite prepared by the method according to the present invention to cut the cross section and measured the cross section. It can be seen that it forms. Synthetic silica particles are dispersed evenly on the surface of the perlite particles, resulting in an insulating material having excellent molding strength while maintaining thermal insulation performance in a form where the boundary of the phase is ambiguous. In general, simple mixing results in phase separation in which the synthetic silica and expanded perlite are coagulated with each other.
- the synthetic silica agglomeration group is weak in bond strength and easily broken, and the perlite agglomeration group generates convection and conduction phenomenon, resulting in high thermal conductivity.
- the cotton-like form is synthetic silica, and the sharp-shaped particles are perlite particles.
- the synthetic silica and the perlite are not dispersed in agglomerated form, so that they are separated from each other and phased together like the synthetic silica of (C) and the perlite of (D), but (A) is a mixture of the present invention. Proceeding the method, it is distinguished that the synthetic silica particles are evenly dispersed on the surface of the expanded perlite and have a distinctly different form from (C) composed only of synthetic silica or (D) composed only of expanded perlite. If you zoom in on part of (A), you can see that the pieces of expanded perlite make up the structural framework as shown in (B).
- the glass-fragmented perlite forms a framework between the synthetic silica particle groups, so that the molding strength is superior to the molded body composed of only the flowable synthetic silica particles.
- Synthetic silica is used to reduce the thermal conductivity of particles from several nanometers to tens of microns of fumed silica, porous silica, aerogels, white carbon, etc., and its content is 50 to 98% by weight, and 50% or less by weight. In this case, the thermal insulation performance is very low, and in the case of more than 98% by weight, the thermal insulation properties may be excellent, but the molding strength may decrease.
- the expanded perlite is prepared by drying the perlite ore and then expanding it.
- the perlite ore is at least one selected from perlite, obsidian, pine rock, and pumice.
- the content of the expanded perlite is 2% by weight or less based on the total weight, the molding strength may be low and the insulation property may be very low when the content of the expanded perlite is 50% by weight or more.
- the mixer is not limited in kind, shape and structure, but when mixed, the spherical and plural perlites are pulverized to form fragmented particles, and the synthetic silica is separated from the particles, so that the fine particles are separated on the surface of the fragmented perlite particles. Preference is given to using mixers having high speed rpms and forces to be coated or dispersed and mixed.
- Mixer blades can be mounted in the mixer for more efficient and effective mixing, or blade blades can be mounted on the upper, lower, left, or right shafts, and the blade blades and vessels designed to rotate against gravity Can also be used. Blade blades can be straight or cross shaped, and can use circular and multiple mounted blades.
- the operating time and rpm of the mixer increase as the efficiency increases, but does not increase physically from a certain point of time.
- the operating time is preferably short, and a method of increasing rpm may be effective.
- the expanded perlite particles do not fragment or particles exceeding 300 ⁇ m is low and the effect is low.
- the glass fragmented perlite particle size is 1 ⁇ 300 ⁇ m, it is well dispersed in the molded body and can be structurally supported. If the particle size is less than 1 ⁇ m, it is well dispersed but the molding strength falls and exceeds 300 ⁇ m. The strength may increase, but the dispersibility may decrease and the thermal conductivity may deteriorate.
- the particle size of the glass-fragmented perlite can be conditioned by adjusting the mixer's operating time or by adjusting the rpm speed, and the particle size can be measured using a standard or a particle size analyzer.
- inorganic fibers including glass fibers, mineral wool, zirconium, etc., and organic fibers such as polyethylene, polypropylene, polyester, nylon, and the like can be used.
- Insulation materials require a small number (water-repellent) performance depending on the conditions of use and environment.
- water-repellent water-repellent
- the thermal conductivity of water is about 0.6 W / mK, which is high, and convection increases due to internal moisture. (Hereafter expressed as a decimal).
- the hydrophobic treatment method of a synthetic silica heat insulating material can be manufactured by forming a molded object by carrying out hydrophobic treatment to a synthetic silica particle, or when mixing and shape
- hydrophobicly treated synthetic silica protects hydrophilic synthetic silica, thereby ensuring hydrophobic performance.
- the present invention is intended for the purpose of strength reinforcement by the use of a binder and prevention of reduction of specific surface area, and therefore, it is better to use a simple mixture of hydrophobically treated synthetic silica and general synthetic silica.
- the purpose of not using a binder in the present invention is to maximize the specific surface area of the synthetic silica, because only the synthetic silica treated with a hydrophobic treatment or when mixing the hydrophobic treatment agent during molding, the specific surface area becomes small, This is because mixing of the treating agents exhibits a phenomenon similar to mixing of the binder.
- the molding machine in the present invention includes an upper plate, a lower plate and a side wall plate.
- the upper plate 10 includes an upper perforated plate 11 having a plurality of perforations formed thereon, an upper filter 12 positioned at an upper portion thereof, and an upper pressing plate 13 positioned at an upper portion of the upper filter 12.
- the lower plate 20 corresponding thereto includes a lower perforated plate 21, a lower filter 22 disposed below the lower plate 22, and a lower press plate 23 positioned below the lower filter 22.
- the upper filter 12 and the lower filter 22 have pores such that synthetic silica and perlite particles do not escape.
- FIG. 4 is a schematic operation diagram of a conventional compression molding machine.
- Conventional compression molding machines are composed of an upper plate and a lower plate without perforations to perform compression molding.
- the air contained therein does not escape smoothly, and as the pressurized together, the internal pressure is higher than atmospheric pressure, thereby deteriorating the effect of the expanded perlite used as the structural support. .
- air eventually escapes into the gap between the upper plate and the side wall, and the dispersion of the air may occur due to the difference in particle size or specific gravity due to the flow of air.
- FIG. 3 is a schematic view of the operation of the molding machine according to the present invention.
- the atmospheric pressure P1 before pressurization and the air pressure P2 inside the powder are started at the same pressure, and as the compression proceeds, the internal air pressure P2 becomes larger than P1.
- the internal air pressure P2 exits to the outside of the molding machine to achieve a phase equilibrium with the atmospheric pressure P1.
- Arrows in FIG. 3 show the flow of air.
- a general molding machine has a gap between the upper plate and the side wall to be pressurized, so that the air escapes as shown in (B) of FIG. 4, but as the size of the molded body (area of the plate) and the compressed state of the powder become larger, the inside is not easily escaped.
- the air pressure P2 is higher than the atmospheric pressure P1, and where the pressure is locally higher, the specific surface area (inner pores) is formed nonuniformly, and the effect of the expanded perlite forming the structural support is inferior.
- the molding machine of the present invention has a plurality of perforations formed in the upper perforated plate 11 and the lower perforated plate 21, the air is easily released as shown in FIG. 3B, so that the internal air pressure P2 and the atmospheric pressure P1 are substantially constant. It is maintained so that the specific surface area is formed uniformly, and the expanded perlite can obtain the effect of forming the structural support.
- hydrophobized synthetic silica and general synthetic silica it is more effective when using hydrophobized synthetic silica and general synthetic silica to impart hydrophobicity. This is because hydrophobically treated synthetic silica has a lower surface tension than general synthetic silica, resulting in better flowability.
- flow refers to the reaction and movement of external pressure easily.
- the internal pressure is increased, the dispersion deviation may occur due to the air escapes into the gap between the upper plate and the side wall, the molding machine of the present invention, as shown in Figure 3 the upper and lower air This is because it easily escapes, preventing internal unevenness and suppressing internal air flow.
- the filters 12 and 22 used in the molding machine upper plate 10 and the lower plate 20 may use organic fibers, inorganic fibers, organic foams, inorganic foams, or metal filters capable of effectively removing internal air. .
- compression molding is a form in which the upper plate 10 is lowered and compressed. At this time, when the compressed state of the upper part and the lower part of the powder where the compression starts, the upper part is compressed more than the lower part, and the thickness of the formed insulation As the increases, the difference becomes larger. When the density deviation of the upper and lower portions of the heat insulating material thus produced is generated, the strength and thermal conductivity become nonuniform. In order to improve this problem, a method of simultaneously compressing the upper plate 10 and the lower plate 20 may be used to improve density deviations and non-uniform internal specific surface areas of the upper and lower portions of the molded insulation.
- the insulation produced by the present invention can be used as the insulation itself, and further applications are also possible.
- the outer material of aluminum and the organic material film is a multi-layer structure is additionally used.
- the organic material film material polyethylene, polypropylene, polyethylene terephthalate, polycarbonate, nylon, EVOH (ethylene vinyl alcohol copolymer) and the like can be used.
- the method of manufacturing the shell material can be manufactured by vapor deposition or lamination.
- an inorganic or organic fiber may be further included.
- an outer skin film has a thickness of 10-1000 micrometers.
- the method of depositing or laminating an aluminum film on the organic material film is no particular limitation on the method of depositing or laminating an aluminum film on the organic material film.
- the organic material film and the aluminum film are laminated and deposited or laminated by heating and pressing at a temperature of 50 to 300 ° C. and a pressure of 1 to 300 kgf / cm 2.
- the thickness of the outer film is less than 10 ⁇ m, there is a high risk of breaking the vacuum due to damage caused by external impact or scratches. If the thickness is more than 1000 ⁇ m, it is difficult to fold after manufacturing the vacuum insulation material, or thermal cutting through the skin There is a problem that loss occurs.
- the upper outer shell material and the lower outer skin material are placed in parallel, and the inorganic powder molded body prepared in the second step is seated between the upper and lower outer skin materials, and then three surfaces of the upper outer skin material and the lower outer skin material are heat-sealed.
- the molded body When heated and pressurized at a temperature of 50 to 300 ° C. and a pressure of 1 to 30 kgf / cm 2, the molded body is manufactured in a form of a heat-sealed bag.
- the upper and lower surfaces of the open one surface of the upper and lower envelopes are put in a vacuum chamber, and air is removed to form a vacuum.
- a vacuum insulator is completed by heat-sealing the open one surface.
- the degree of vacuum varies depending on the desired thermal conductivity. The higher the vacuum, the better the thermal conductivity because the effect of convection is eliminated. In the present invention, a vacuum pressure of 1 torr or more is assumed.
- the method of using the outer shell material is a method of inserting a molded body in the form of an envelope in which the three sides are fused in advance, and the upper and lower outer shell materials are continuously supplied, and the three outer surfaces of the upper outer shell material and the lower outer shell material are welded after the molded body is supplied therebetween. There is also a way.
- cryogenic insulation In particular, it can be used as a heat insulating material for LNG ships.
- LNG ships There are two types of insulation used for LNG ships: Mark III type and No 96 type.
- the Mark III type uses plywood plates on the upper and lower surfaces, and urethane is used between them, and the No 96 type uses plywood to form a cuboid box and fills the inside with expanded perlite, rock wool and glass wool. . Inside the plywood box, several additional partitions are constructed to prevent the top and bottom plates from impacting.
- the heat insulating material of the present invention may be used alone as a molded body when used as the heat insulating material of the LNG vessel as described above, or may be used together with a finish material to prevent damage.
- Finishing materials can be used in a variety of applications, such as finishing or laminated aluminum film for vacuum insulation, a finish made of inorganic fibers, a finish made of organic materials.
- the core material is used to wrap the core material with a material that can act as a filter in the form of a nonwoven fabric or a woven fabric.
- Endothelial material is used in the form of a sheet (sheet), paper (paper) made of a nonwoven fabric or a woven fabric of inorganic fibers, organic fibers, cellulose fibers and the like.
- Another application method is a heat insulator used as a backing material such as a pipe or a heating furnace in which high and low temperature fluids flow. Insulation can also be used alone, but by using the finishing materials as described above to improve the workability of the site, it can be applied in accordance with the thickness or shape of the pipe in advance, or can be used to wrap the form in the field.
- compressed composites having a structural framework formed between synthetic silica by uniformly dispersing irregularly shaped glass-like perlite particles using expanded perlite.
- compressed material since the expanded perlite structural framework formed by high-speed dispersion of the first-stage synthetic silica and expanded perlite is not fixed, damage to the structure composed of the expanded perlite skeleton and synthetic silica occurs due to external pressure or action. It is made of compressed material (hereinafter referred to as compressed material).
- the compressed composite thus produced has two effects.
- the general compression molding machine can be used without using the two-stage compression molding machine proposed in the present invention.
- the reason for this is that the compression ratio is reduced during compression molding by manufacturing the compressed mixture having a structural skeleton, and the internal pressure is lowered because the flow of air generated during compression is also reduced. This is because the particles have already formed the structure and the strength is high, so that damage to the structure and the skeleton is hardly generated.
- the two-stage compression molding machine process can be omitted and the insulation can be manufactured.
- its use alone is difficult, and finishes should be used.
- the insulating material can be manufactured to have a desired shape and strength.
- the density of the compressed mixture can be adjusted.
- Compressed mixture of the present invention can be applied more convenient when used as a vacuum insulation core material. Since the core material of the vacuum insulation material proposed above is made of a rigid molded body, most of the vacuum insulation material is manufactured in a board type after the vacuum insulation material is manufactured or manufactured. However, when the core is used in the form of a compressed mixture, it can be applied to a wider variety of products because it can be made into a desired shape before or after vacuum.
- the flexural strength and the thermal conductivity were measured to check the properties of the insulation, and the physical property values were compared.
- Flexural strength was measured according to KS F 4714, and three test pieces of insulation were taken and averaged after measurement.
- Thermal conductivity was measured according to ASTM C 518 plate heat flow meter method, the test piece was measured by manufacturing a vacuum insulation material of the width X length X height 300X300X10mm size.
- Example 1 Insulation Material Production Using Inorganic Powder of the Present Invention
- Example 2 As in Example 2 to prepare a powder is completed mixing. At this time, the powder has a bulk density of 42 kg / m3, and the powder is passed through a compression roller to prepare a compressed mixture having a structural skeleton having a bulk density of 155 kg / m3.
- the prepared compressed composite material was molded into a size of width X length X height 300X300X10mm (volume 0.9L) using a compression molding machine consisting of an upper plate and a lower plate having perforations to prepare a heat insulating material having a density of 170 kg / m3.
- Example 4 Insulation Material Production Using Inorganic Powders of the Present Invention
- Example 2 As in Example 2 to prepare a powder is completed mixing. At this time, the powder has a bulk density of 42 kg / m3, and the powder is passed through a compression roller to prepare a compressed mixture having a structural skeleton having a bulk density of 155 kg / m3.
- a heat insulating material having a density of 135 kg / m3 was manufactured by molding into the size of width X length X height 300 X 300 X 10 mm (volume 0.9 L) as in Example 1 using 76.5 g of fumed silica, 36.5 g of expanded perlite, and 8.5 g of glass fiber as reinforcing fibers. It was.
- the heat insulating material was cut from the top plate (Example 7), the middle plate (Example 8), and the bottom plate (Example 9) by 10 mm in thickness based on the compression direction of the upper plate plate of the molding machine. Made of chapters.
- the insulation is cut from the top plate (Example 10), the middle plate (Example 11), and the bottom plate (Example 12) by 10 mm in thickness from the top of the molding machine in the compression direction. made.
- Example 1 Comparison of Insulation Material Properties by Molding Density and Forming Method division Molding Density (Kg / m3) Powder Mixing Speed (rpm) Characteristic Flexural Strength (gf / cm2) Thermal Conductivity (mW / mK at 20 °C)
- Kg / m3 Powder Mixing Speed (rpm) Characteristic Flexural Strength (gf / cm2) Thermal Conductivity (mW / mK at 20 °C)
- Example 1 170 2000 Perforated Plate Filter 181 0.0207
- Example 2 170 2000 Perforated Plate Filter 200 0.0209
- Example 3 170 2000 Perforated Plate Filter 201 0.0210
- Example 4 170 2000 Plain plate 198 0.0209
- Example 5 135 2000 Perforated Plate Filter 191 0.0205
- Example 6 100 2000 Perforated Plate Filter 174 0.0203 Comparative Example 1 171 300 Normal Plate Binder PVAC 178 0.0225 Comparative Example 2 170 900 Perforated Plate Filter Not measurable Not
- Examples 1 to 6 were prepared the heat insulating material according to the inorganic powder heat insulating material manufacturing method to be presented in the present invention.
- Example 1 shows a slightly higher strength than the comparative example while not having fibers, and Examples 2, 5, and 6, which contain fibers uniformly, have lower flexural strength as the density is lower, but the thermal insulation performance is gradually improved.
- Examples 3 and 4 were made using compressed composites having a structural framework and showed no particular difference compared to Example 2. In particular, in Example 4, it can be seen that a general compression molding machine can be used without damaging the structure.
- Comparative Example 1 the bending strength was lower than that of Example 1, which was the same condition, and the insulation performance was worsened due to the decrease in the internal specific surface area.
- an increase in the amount of the binder can give a higher strength than the present invention, but since the internal specific surface area becomes smaller, the thermal insulation performance is lowered, so it is mostly used only for a small amount of strength reinforcement.
- Comparative Examples 2 and 3 in the present invention it can be seen the correlation between the high-speed mixer and the molding method. Even if the structure is simply formed by a high speed mixer, the internal pressure is not removed, and the effect is not found.
- the present invention additionally proposes the use of a molding machine in which the upper plate and the lower plate are simultaneously compressed up and down.
- Table 2 in order to manufacture a heat insulating material having a uniform density and excellent flexural strength at a low density, it can be seen that a molded article manufacturing method of a method in which the upper plate and the lower plate are simultaneously compressed.
- Example 13 As in Example 13 to prepare a powder is completed mixing. At this time, the powder has a bulk density of 42 kg / m3, and the powder is passed through a compression roller to prepare a compressed mixture having a structural skeleton having a bulk density of 155 kg / m3. Compressed particles were placed in a 300X300X11mm polypropylene nonwoven bag and placed between an LDPE, a 400X320mm envelope made of nylon and an aluminum film, and a thickness of 400X320mm, and sealed in a vacuum to fold a 400mm portion to prepare a vacuum insulator. .
- Core material (for strength measurement) and core material manufactured after hot air drying for 24 hours at 70 °C and 24 hours at 140 °C are placed between a 400X370mm sized finish made of LDPE, 90 ⁇ m thickness of nylon and aluminum film, and packed in general. Sealing in a vacuum to fold the 400mm part to prepare a heat insulating material.
- Urethane board Width X length X height 300 X 300 X 30 mm The inside of the board is dug into a size of 254 X 254 X 30 mm, the lower part is supported by an aluminum film, 107 g of expanded perlite is placed in a space of 254 X 254 X 30 mm and charged by vibration for 50 seconds with an amplitude of 0.5 mm at 40 Hz, and the upper part is made of aluminum
- a sample heat insulating material capable of measuring thermal conductivity by supporting a film was prepared. (NO96 is a method of filling the expanded perlite particles, the thermal conductivity measurement specimens are prepared as above)
- Thermal conductivity was measured by ASTM C 177 protective hotplate method. In particular, the insulation of LNG ships was compared to the thermal conductivity at cryogenic temperatures. Hydrophobic performance was confirmed by KS F 4714 water repellency measurement method. Only relevant figures for each item were measured and inserted.
- Example 13 can be seen that the 0.00421W / mK performance is secured when the heat insulating material of the present invention is further manufactured as a vacuum insulating material using a core material.
- Example 14 unlike Example 13, uses a compressed composite material having a structural skeleton, and it can be seen that there is almost no difference from Example 13.
- Example 15 and Example 16 confirms the insulation of LNG ships, indicating that the performance is much superior to that of Comparative Example 4.
- Example 18 the internal specific surface area was reduced by slightly mixing hydrophobic and hydrophilic synthetic silica, and the thermal conductivity was slightly increased. However, the water repellency was excellent.
- Example 17 was used in the same manner as the plywood insulation box of the NO96 form.
- the plywood is manufactured in a box with an internal space of 305 * 305mm and a depth of 45mm to fit the sample size.
- E-glass which is the side of the insulation prepared in Example 17 (the size of 310 * 310 * 50mm by an additional outer sheath of 300mm * 300mm * 30mm to E-glass 10mm), was put in a box in the form of 5mm compression.
- the open top is also covered with plywood, which is fixed by pressing E-glass about 5mm. Insulation material put into the plywood box is not shaken from the inside as the E-glass is compressed both up and down / left and right, it can also prevent damage to the aluminum deposition film.
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Abstract
Description
구분 | 성형밀도(Kg/m3) | 파우더혼합속도(rpm) | 특징 | 굴곡강도(gf/cm2) | 열전도율(mW/mK at 20℃) |
실시예 1 | 170 | 2000 | 타공 플레이트필터 장착 | 181 | 0.0207 |
실시예 2 | 170 | 2000 | 타공 플레이트필터 장착 | 200 | 0.0209 |
실시예 3 | 170 | 2000 | 타공 플레이트필터 장착 | 201 | 0.0210 |
실시예 4 | 170 | 2000 | 일반 플레이트 | 198 | 0.0209 |
실시예 5 | 135 | 2000 | 타공 플레이트필터 장착 | 191 | 0.0205 |
실시예 6 | 100 | 2000 | 타공 플레이트필터 장착 | 174 | 0.0203 |
비교예 1 | 171 | 300 | 일반 플레이트바인더 PVAC사용 | 178 | 0.0225 |
비교예 2 | 170 | 900 | 타공 플레이트필터 장착 | 측정불가 | 측정불가 |
비교예 3 | 170 | 2000 | 일반 플레이트 | 측정불가 | 측정불가 |
구분 | 파우더혼합속도(rpm) | 압축 성형기형태 | 압축방법 | 세부 구분 | 측정밀도(Kg/m3) | 굴곡강도(gf/cm2) |
실시예7 ~ 9 | 2000 | 타공 플레이트필터 장착 | 상부,하부동시 압축 | 실시예 7(상부) | 136 | 190 |
실시예 8(중부) | 134 | 188 | ||||
실시예 9(하부) | 135 | 188 | ||||
실시예10 ~ 12 | 2000 | 타공 플레이트필터 장착 | 상부압축 | 실시예 10(상부) | 139 | 192 |
실시예 11(중부) | 129 | 181 | ||||
실시예 12(하부) | 136 | 188 |
구분 | 열전도율(W/mK) | 발수도 | |||
20℃ | -40℃ | -80℃ | -159℃ | ||
실시예 13 | 0.00421 | - | |||
실시예 14 | 0.00420 | ||||
실시예 15 | 0.00601 | 0.00473 | 0.00394 | 0.00276 | - |
실시예 16 | 0.0206 | 0.01854 | 0.01682 | 0.01170 | - |
실시예 18 | 0.022 | 99.4% | |||
비교예 4 | 0.0408 | 0.0335 | 0.0289 | 0.0180 | - |
Claims (21)
- 팽창 퍼라이트를 파편화 하고 팽창 퍼라이트 파편에 미립의 합성실리카를 분산시켜 무기질 파우더를 만드는 1단계; 및무기질 파우더 내부의 공기가 균일하게 배출될 수 있도록 무기질 파우더를 압축 성형하여 단열재를 제조하는 2단계;를 포함하여 구성되는, 팽창 퍼라이트를 이용한 저밀도 무기질 파우더 단열재 제조 방법.
- 제1항에 있어서,무기질 파우더는 전체 중량대비 합성 실리카 50 ~98 중량%와 팽창 퍼라이트 2 ~ 50 중량%를 포함하여 구성되는 것을 특징으로 하는, 팽창 퍼라이트를 이용한 저밀도 무기질 파우더 단열재 제조 방법.
- 제1항에 있어서,상기 1단계가 믹서에서 동시에 진행되는 것을 특징으로 하는, 팽창 퍼라이트를 이용한 저밀도 무기질 파우더 단열재 제조 방법.
- 제1항에 있어서,상기 속도가 1000rpm 이상인 것을 특징으로 하는, 팽창 퍼라이트를 이용한 저밀도 무기질 파우더 단열재 제조 방법.
- 제1항에 있어서,단열재를 외피재로 감싸는 단계; 및일정한 진공도까지 진공을 형성한 후 외피재의 나머지 일 측면을 열융착하는 단계;를 더 포함하여 구성되는, 팽창 퍼라이트를 이용한 저밀도 무기질 파우더 단열재 제조 방법.
- 제1항에 있어서,단열재가 마감재를 더 포함하여 구성되는, 팽창 퍼라이트를 이용한 저밀도 무기질 파우더 단열재 제조 방법.
- 제5항에 있어서,상기 외피재는 알루미늄과 유기소재 필름이 한겹 이상으로 증착 또는 합지되어 구성되어 있는 것을 특징으로 하는, 팽창 퍼라이트를 이용한 저밀도 무기질 파우더 단열재 제조 방법.
- 제6항에 있어서,마감재는 알루미늄과 유기소재 필름이 증착된 마감재, 알루미늄과 유기소재 필름이 합지된 마감재, 무기질 섬유로 구성된 마감재, 유기재료로 구성된 마감재 중 선택된 어느 하나 이상인 것을 특징으로 하는, 팽창 퍼라이트를 이용한 저밀도 무기질 파우더 단열재 제조 방법.
- 제1항 내지 제8항 중 어느 한 항에 있어서,상기 단열재가 유체 수송용 단열재 또는 유체 플랜트(plant)용 배관 단열재 또는 가열로의 백업재로서 사용되는 것을 특징으로 하는, 팽창 퍼라이트를 이용한 저밀도 무기질 파우더 단열재 제조 방법.
- 다수의 타공이 형성되어 있는 상부타공플레이트, 상부타공플레이트의 상부에 위치하는 상부필터 및 상부필터의 상부에 위치하는 상부가압판을 포함하는 상부플레이트;다수의 타공이 형성되어 있는 하부타공플레이트, 하부타공플레이트의 하부에 위치하는 하부필터 및 하부필터의 하부에 위치하는 하부가압판을 포함하는 하부플레이트; 및저밀도 무기질 파우더를 압축할 때 상부플레이트 및 하부플레이트의 측면과 연접하도록 위치하는 측면플레이트들;을 포함하여 구성되는, 팽창 퍼라이트를 이용한 저밀도 무기질 파우더 단열재 제조용 성형기.
- 제10항에 있어서,상기 상부필터 및 하부필터는 유기계 섬유, 무기계 섬유, 유기계 발포폼 또는 무기계 발포폼 중 선택된 어느 하나 이상으로 만들어지는 것을 특징으로 하는, 팽창 퍼라이트를 이용한 저밀도 무기질 파우더 단열재 제조용 성형기.
- 제10항에 있어서,상기 상부플레이트와 하부플레이트가 동시에 상부와 하부에서 압축하는 것을 특징으로 하는, 팽창 퍼라이트를 이용한 저밀도 무기질 파우더 단열재 제조용 성형기.
- 팽창 퍼라이트를 파편화 하고 팽창 퍼라이트 파편에 미립의 합성실리카를 분산시켜 무기질 파우더를 만드는 1단계; 및무기질 파우더를 압축롤러로 압축하여 압축 합재로 된 단열재를 제조하는 2단계;를 포함하여 구성되는, 팽창 퍼라이트를 이용한 저밀도 무기질 파우더 단열재 제조 방법.
- 제13항에 있어서,무기질 파우더는 전체 중량대비 합성 실리카 50 ~98 중량%와 팽창 퍼라이트 2 ~ 50 중량%를 포함하여 구성되는 것을 특징으로 하는, 팽창 퍼라이트를 이용한 저밀도 무기질 파우더 단열재 제조 방법.
- 제13항에 있어서,상기 1단계가 믹서에서 동시에 진행되는 것을 특징으로 하는, 팽창 퍼라이트를 이용한 저밀도 무기질 파우더 단열재 제조 방법.
- 제13항에 있어서,상기 속도가 1000rpm 이상인 것을 특징으로 하는, 팽창 퍼라이트를 이용한 저밀도 무기질 파우더 단열재 제조 방법.
- 제13항에 있어서,단열재를 외피재로 감싸는 단계; 및일정한 진공도까지 진공을 형성한 후 외피재의 나머지 일 측면을 열융착하는 단계;를 더 포함하여 구성되는, 팽창 퍼라이트를 이용한 저밀도 무기질 파우더 단열재 제조 방법.
- 제13항에 있어서,단열재가 마감재를 더 포함하여 구성되는, 팽창 퍼라이트를 이용한 저밀도 무기질 파우더 단열재 제조 방법.
- 제17항에 있어서,상기 외피재는 알루미늄과 유기소재 필름이 한겹 이상으로 증착 또는 합지되어 구성되어 있는 것을 특징으로 하는, 팽창 퍼라이트를 이용한 저밀도 무기질 파우더 단열재 제조 방법.
- 제18항에 있어서,마감재는 알루미늄과 유기소재 필름이 증착된 마감재, 알루미늄과 유기소재 필름이 합지된 마감재, 무기질 섬유로 구성된 마감재, 유기재료로 구성된 마감재 중 선택된 어느 하나 이상인 것을 특징으로 하는, 팽창 퍼라이트를 이용한 저밀도 무기질 파우더 단열재 제조 방법.
- 제13항 내지 제20항 중 어느 한 항에 있어서,상기 단열재가 유체 수송용 단열재 또는 유체 플랜트(plant)용 배관 단열재 또는 가열로의 백업재로서 사용되는 것을 특징으로 하는, 팽창 퍼라이트를 이용한 저밀도 무기질 파우더 단열재 제조 방법.
Priority Applications (4)
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JP2015523026A JP6018307B2 (ja) | 2012-08-07 | 2013-08-07 | 膨張パーライトを用いた無機質パウダー断熱材の製造方法 |
US14/416,268 US9770848B2 (en) | 2012-08-07 | 2013-08-07 | Low density inorganic powder insulator using expanded perlite, method for manufacturing same and mold machine for manufacturing same |
EP13827324.8A EP2883850A4 (en) | 2012-08-07 | 2013-08-07 | ISOLATOR FOR A LOW-DENSITY INORGANIC POWDER WITH A PERLIT THAT HAS BEEN PRODUCED, METHOD OF MANUFACTURING THEREOF, AND MOLDING MACHINE FOR ITS MANUFACTURE |
CN201380041440.5A CN104520250B (zh) | 2012-08-07 | 2013-08-07 | 使用膨胀珍珠岩的低密度无机粉末绝缘体、其制造方法和用于其制造的模具机 |
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KR10-2012-0086220 | 2012-08-07 | ||
KR20120086220A KR101365657B1 (ko) | 2012-08-07 | 2012-08-07 | 팽창 퍼라이트를 이용한 저밀도 무기질 파우더 단열재, 이의 제조 방법 및 이의 성형기 |
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US (1) | US9770848B2 (ko) |
EP (1) | EP2883850A4 (ko) |
JP (1) | JP6018307B2 (ko) |
KR (1) | KR101365657B1 (ko) |
CN (1) | CN104520250B (ko) |
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US10422464B2 (en) * | 2015-10-02 | 2019-09-24 | Owens Corning Intellectual Capital, Llc | Tension fit insulation |
US10012348B2 (en) * | 2016-02-10 | 2018-07-03 | United States Gypsum Company | Alternative core material based vacuum insulated panels |
KR101910237B1 (ko) * | 2016-02-15 | 2018-10-19 | 전정호 | 단열재 및 이의 제조방법 |
WO2018063173A1 (en) | 2016-09-28 | 2018-04-05 | Whirlpool Corporation | Processes for making a super-insulating core for a vacuum insulating structure |
JP7061355B2 (ja) * | 2018-02-16 | 2022-04-28 | 国立大学法人 名古屋工業大学 | 高多孔率無機多孔体 |
WO2020016036A1 (en) | 2018-07-18 | 2020-01-23 | Evonik Operations Gmbh | Process for hydrophobizing shaped insulation-material bodies based on silica at ambient pressure |
CN109129843A (zh) * | 2018-09-04 | 2019-01-04 | 张家港市华孚实业有限公司 | 一种膨胀珍珠岩板压制模板 |
CN109514787A (zh) * | 2018-11-26 | 2019-03-26 | 苏州迪茂检测设备有限公司 | 热压合方法以及热镶嵌机 |
KR102088367B1 (ko) * | 2019-11-07 | 2020-03-12 | 주식회사 플랩 | 도료용 열차단 무기분말 제조방법 |
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Also Published As
Publication number | Publication date |
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EP2883850A4 (en) | 2016-08-03 |
JP6018307B2 (ja) | 2016-11-02 |
EP2883850A1 (en) | 2015-06-17 |
KR101365657B1 (ko) | 2014-02-24 |
KR20140019980A (ko) | 2014-02-18 |
JP2015530340A (ja) | 2015-10-15 |
CN104520250B (zh) | 2016-10-26 |
US20150209981A1 (en) | 2015-07-30 |
US9770848B2 (en) | 2017-09-26 |
CN104520250A (zh) | 2015-04-15 |
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