CN219639792U - Vacuum heat insulating material - Google Patents
Vacuum heat insulating material Download PDFInfo
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- CN219639792U CN219639792U CN202320344604.2U CN202320344604U CN219639792U CN 219639792 U CN219639792 U CN 219639792U CN 202320344604 U CN202320344604 U CN 202320344604U CN 219639792 U CN219639792 U CN 219639792U
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- insulation material
- adsorbent
- oxide
- vacuum insulation
- vacuum
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- 239000011810 insulating material Substances 0.000 title abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 64
- 239000012774 insulation material Substances 0.000 claims abstract description 59
- 239000011347 resin Substances 0.000 claims abstract description 43
- 229920005989 resin Polymers 0.000 claims abstract description 43
- 239000011248 coating agent Substances 0.000 claims abstract description 42
- 238000000576 coating method Methods 0.000 claims abstract description 42
- 238000001179 sorption measurement Methods 0.000 claims abstract description 40
- 230000004888 barrier function Effects 0.000 claims abstract description 39
- 239000003463 adsorbent Substances 0.000 claims abstract description 37
- 230000003197 catalytic effect Effects 0.000 claims abstract description 37
- 239000011162 core material Substances 0.000 claims abstract description 24
- 239000003054 catalyst Substances 0.000 claims abstract description 22
- 239000000126 substance Substances 0.000 claims abstract description 13
- 239000011247 coating layer Substances 0.000 claims abstract description 11
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims description 8
- 229910001868 water Inorganic materials 0.000 claims description 8
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 7
- 239000001569 carbon dioxide Substances 0.000 claims description 7
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical group [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 6
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 6
- 239000000292 calcium oxide Substances 0.000 claims description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 5
- 239000011241 protective layer Substances 0.000 claims description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 4
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910021536 Zeolite Inorganic materials 0.000 claims description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 4
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 4
- 229910000428 cobalt oxide Inorganic materials 0.000 claims description 4
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 4
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 4
- HBEQXAKJSGXAIQ-UHFFFAOYSA-N oxopalladium Chemical compound [Pd]=O HBEQXAKJSGXAIQ-UHFFFAOYSA-N 0.000 claims description 4
- 229910003445 palladium oxide Inorganic materials 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 4
- 239000010457 zeolite Substances 0.000 claims description 4
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 3
- 239000005751 Copper oxide Substances 0.000 claims description 3
- 229910000431 copper oxide Inorganic materials 0.000 claims description 3
- 229910044991 metal oxide Inorganic materials 0.000 claims description 3
- 239000008187 granular material Substances 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 238000007740 vapor deposition Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 23
- 230000000694 effects Effects 0.000 abstract description 18
- 238000009413 insulation Methods 0.000 description 8
- 239000010410 layer Substances 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 6
- 238000005336 cracking Methods 0.000 description 6
- 229930195733 hydrocarbon Natural products 0.000 description 5
- 150000002430 hydrocarbons Chemical class 0.000 description 5
- 239000004215 Carbon black (E152) Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 238000004321 preservation Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000003421 catalytic decomposition reaction Methods 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- -1 extruded sheets Substances 0.000 description 2
- 239000012793 heat-sealing layer Substances 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920006284 nylon film Polymers 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011863 silicon-based powder Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/242—Slab shaped vacuum insulation
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
- Y02B80/10—Insulation, e.g. vacuum or aerogel insulation
Abstract
The utility model relates to the field of heat insulation materials, in particular to a vacuum heat insulation material. The vacuum insulation material includes: a core material; the catalytic adsorption component is arranged on the surface or inside the core material; the transparent outer coating material is coated on the periphery of the core material and the catalytic adsorption component, and the outer coating material is provided with a resin base material or a resin coating; the catalytic adsorption component comprises an adsorbent and a catalyst, and the catalyst can be used for catalytically decomposing organic gas which cannot be adsorbed by the adsorbent into micromolecular substances which can be adsorbed by the adsorbent. The outer coating material comprises a resin base material, a barrier film coated on the resin base material, and a resin coating layer coated on one or both sides of the barrier film. Through the cooperation of the catalyst and the adsorbent, the organic gases are finally decomposed and adsorbed by the catalytic adsorption component, so that the high vacuum degree inside the vacuum heat insulation material is ensured. Therefore, the influence of the heat bridge phenomenon can be reduced while the vacuum degree of the vacuum heat insulating material is prevented from being reduced, and the heat insulating effect of the vacuum heat insulating material is improved.
Description
Technical Field
The utility model relates to the field of heat insulation materials, in particular to a vacuum heat insulation material.
Background
The vacuum heat insulating material is a heat insulating material formed by covering a core material having fine voids such as glass wool or silicon powder with an outer covering material having gas barrier properties, and sealing the inside of the outer covering material under reduced pressure. The internal space of the vacuum heat insulating material is kept in high vacuum, so that heat transfer is reduced, and a good heat insulating effect is achieved. The vacuum heat insulation material can be applied to household appliances such as refrigerators and water heaters, and the use scenes of equipment and machines, residential buildings and the like, and plays a good role in heat insulation. Compared with the traditional heat insulation materials such as extruded sheets, polyurethane sheets and the like, the vacuum heat insulation material has higher heat insulation performance and thinner thickness, and therefore, the vacuum heat insulation material is increasingly widely applied.
In the vacuum insulation material, heat is transferred through the exterior coating material disposed on the outer periphery of the vacuum insulation material, and a phenomenon of a heat bridge occurs. When the vacuum heat insulation material is used as a heat barrier material in a frame structure such as a refrigerator, heat is transferred through the outer coating material, so that the heat insulation performance of the vacuum heat insulation material in the use environment is reduced, and the heat insulation effect of the vacuum heat insulation material is reduced.
The vacuum heat insulating material generally uses an aluminum film and an aluminum plating film as an outer coating material, and a larger heat bridge exists in the two outer coating materials. In order to suppress the thermal bridge phenomenon, a transparent nonmetallic outer covering material with low thermal conductivity is used as a part of the vacuum insulation material. However, the barrier film of the nonmetallic outer coating is easily cracked, resulting in a decrease in barrier properties. In order to avoid cracking of the barrier film of the nonmetallic outer packaging material, the prior art coats the resin coating on the barrier film of the outer packaging material to prevent the barrier film from cracking and ensure the barrier property.
However, the resin material such as polyvinyl alcohol used for the resin coating layer may remove organic gases such as hydrocarbons which cannot be absorbed by the adsorbent in a vacuum environment, and the removed gases may cause an increase in the internal pressure of the vacuum insulation material and a decrease in the vacuum degree of the vacuum insulation material.
Therefore, it is an object of the present utility model to provide a vacuum insulation material that can suppress the thermal bridge phenomenon while ensuring a high vacuum degree of the vacuum insulation material, thereby improving the insulation effect of the vacuum insulation material.
Disclosure of Invention
Aiming at the problems that the vacuum heat insulation material in the prior art cannot keep high vacuum degree and inhibit heat bridge phenomenon, and the heat insulation effect is poor, the utility model provides a vacuum heat insulation material, which comprises the following components: a core material; the catalytic adsorption component is arranged on the surface or inside the core material; the transparent outer coating material is coated on the periphery of the core material and the catalytic adsorption component, and the outer coating material is provided with a resin base material or a resin coating; the catalytic adsorption component comprises an adsorbent and a catalyst, and the catalyst can be used for catalytically decomposing organic gas which cannot be adsorbed by the adsorbent into micromolecular substances which can be adsorbed by the adsorbent.
According to the technical scheme, the transparent outer coating material enables the catalytic adsorption component to be visible in the vacuum insulation material, is beneficial to the catalytic adsorption component to be inserted into the correct position, and is visible in the bending, grooving and other procedures, the positions of the catalytic adsorption component and the core material can be avoided, the bending and grooving procedures are avoided to apply pressure to the position where the catalytic adsorption component is located, and the vacuum insulation material is prevented from being damaged during processing.
The resin coating can avoid the cracking of the barrier layer and reduce the influence of a thermal bridge, and organic gases released by the resin substrate or the resin coating are decomposed into micromolecular substances which can be adsorbed by the adsorbent by the catalyst, and the adsorbent adsorbs the decomposed micromolecular substances, so that the internal pressure rise of the vacuum heat insulation material caused by the release of the organic gases is avoided. Therefore, the influence of the heat bridge phenomenon can be reduced while the vacuum degree of the vacuum heat insulating material is prevented from being reduced, and the heat insulating effect of the vacuum heat insulating material is improved.
Preferably, the outer coating material has a resin base material, a barrier film coated on the resin base material, and a resin coating layer coated on one or both sides of the barrier film.
According to the technical scheme, one or both sides of the barrier film are coated with the resin coating, so that the barrier film can be prevented from cracking, and the vacuum heat insulation material can maintain high gas barrier performance.
Preferably, the barrier film is a vapor deposited silicon oxide, aluminum oxide, or inorganic phosphorylated metal oxide film.
According to the technical scheme, the barrier film has good barrier property, and is beneficial to improving the heat preservation effect of the vacuum heat insulation material.
Preferably, the adsorbent is calcium oxide.
According to the technical scheme, the calcium oxide has higher adsorptivity, particularly the adsorption of water and carbon dioxide generated by catalytic decomposition, and the adsorption effect of the adsorbent is improved.
Preferably, the catalyst is any one or more of cerium oxide, cobalt oxide, copper oxide, manganese oxide, palladium oxide, titanium oxide and zeolite.
According to the technical scheme, cerium oxide, cobalt oxide, copper oxide, manganese oxide, palladium oxide, titanium oxide and zeolite have good catalytic effects, and can be used for catalytically decomposing organic gas into micromolecular substances which can be adsorbed by the adsorbent.
Preferably, the catalytic adsorbent module is in the form of a sheet, granule, powder or packaged by a gas permeable bag.
According to the technical scheme, the catalytic adsorption component is in the shape of a sheet, a particle, a powder or packaged by the air permeable bag body, so that the catalytic effect and the adsorption effect can be improved, the vacuum degree of the vacuum heat insulation material is improved, and the heat preservation effect is further improved.
Preferably, the small molecule substance is water, carbon monoxide or carbon dioxide.
According to the technical scheme, the resin coating and/or the resin base material can release organic gases such as hydrocarbon, the catalyst catalytically decomposes the organic gases such as hydrocarbon into small molecular substances such as water, carbon monoxide or carbon dioxide which can be adsorbed by the adsorbent, so that the vacuum degree of the vacuum heat insulation material is ensured, and the heat insulation effect is further ensured.
Preferably, the resin coating is a polyvinyl alcohol coating, an ethylene-vinyl alcohol copolymer coating, or an organic-inorganic composite coating.
According to the technical scheme, the polyvinyl alcohol coating, the ethylene-vinyl alcohol copolymer coating or the organic-inorganic composite coating can effectively prevent the barrier film from cracking and ensure the barrier property of the barrier film.
Preferably, the outer surface of the outer coating material is further provided with a protective layer.
According to the technical scheme, the protection layer can improve the puncture resistance strength of the outer wrapping material, and is beneficial to prolonging the service lives of the outer wrapping material and the vacuum heat insulation material.
Drawings
Fig. 1 is a schematic view of a cross-sectional view of a vacuum insulation material according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a cross-sectional view of an outer wrapper of an embodiment of the present utility model;
fig. 3 is a schematic view of a cross-sectional view of a vacuum insulation material according to another embodiment of the present utility model;
fig. 4 is a schematic diagram showing a cross-sectional view of a vacuum insulation material according to still another embodiment of the present utility model.
Reference numerals: 1 a core material; 2, coating materials; 3, a catalytic adsorption component; 4 an adsorbent; 5 a catalyst; 6 a resin base material; 7, a barrier film; 8, resin coating; and 9, a protective layer.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a vacuum heat insulating material, and fig. 1 is a schematic diagram of a cross-sectional view of the vacuum heat insulating material according to an embodiment of the utility model, and as shown in fig. 1, the vacuum heat insulating material comprises a core material 1, an outer coating material 2 and a catalytic adsorption assembly 3.
The type of the core material 1 is not particularly limited, and a porous material having a gas layer ratio of about 90% may be used, and conventionally known core materials such as an open cell material, a fiber material, and a powder material may be used.
The catalytic adsorption unit 3 is provided on the surface or inside of the core material 1, and is generally manufactured by a method of sealing the gas adsorbent and the moisture adsorbent together with the core material into the vacuum insulation material under reduced pressure. Fig. 1 shows a case where the catalytic adsorption unit 3 is provided on the surface of the core material 1, and in other embodiments, the catalytic adsorption unit 3 may be provided inside the core material 1.
Further, the catalytic adsorption module 3 includes the adsorbent 4, and the adsorbent 4 is capable of adsorbing small molecular substances such as water, carbon dioxide, and the like, thereby being capable of removing moisture released from the fine voids of the core material 1 into the vacuum insulation material, and gas such as water vapor or oxygen permeated from the outside of the vacuum insulation material into the vacuum insulation material through the exterior cover 2, thereby being advantageous in improving the vacuum degree inside the vacuum insulation material.
In the present embodiment, the adsorbent 4 is calcium oxide. The calcium oxide has higher adsorptivity, especially for water and carbon dioxide, and is favorable for improving the adsorption effect of the adsorbent 4. In other embodiments of the present utility model, the adsorbent 4 is not limited to calcium oxide, but may be other types of materials, and may be a combination of various types of adsorbent materials, which are not particularly limited herein.
The outer periphery at core 1 and catalytic adsorption subassembly 3 is wrapped to outer packing material 2, in this embodiment, outer packing material 2 is transparent outer packing material 2, and transparent outer packing material 2 makes catalytic adsorption subassembly 3 in the inside condition of vacuum insulation material visual, helps catalytic adsorption subassembly 3 to be inserted into the exact position to because catalytic adsorption subassembly 3 and core 1's position all are visual, can avoid catalytic adsorption subassembly 3's setting position when process such as buckling, indent go on, avoid exerting pressure to catalytic adsorption subassembly 3 place position, and then avoid the damage of vacuum insulation material when processing. In other embodiments, in the case that the environment outside the outer wrapping material 2 has ambient light, the transparent outer wrapping material 2 may also enable the ambient light to be input, so as to enhance the catalytic decomposition capability of the catalytic adsorption assembly 3 on the organic gas.
Fig. 2 is a schematic diagram of a cross-sectional view of an outer covering 2 according to an embodiment of the present utility model. As shown in fig. 2, the outer coating material 2 in the present embodiment is formed by overlapping and stacking a plurality of layers of film materials, and the plurality of layers of film materials may be bonded and fixed, and the bonding layer is not shown in fig. 2. The bottom layer of the outer covering 2 is also provided with a heat-sealing layer, for example, a heat-sealing layer made of low-density polyethylene, for sealing the outer covering 2 under reduced pressure, which is also not shown in fig. 2.
Referring to fig. 2, the exterior cover 2 has a resin base 6 and a barrier film 7 coated on the resin base 6. In the present embodiment, the resin base material 6 is a transparent organic polymer material, and the resin base material 6 and the barrier film 7 are both nonmetallic materials, and have lower thermal conductivity than metallic materials, so that the influence of the thermal bridge phenomenon can be reduced, the barrier property of the exterior coating material 2 can be improved, and the heat insulating performance of the vacuum heat insulating material can be effectively improved.
Further, the exterior sheathing material 2 further includes a resin coating layer 8 coated on one or both sides of the barrier film 7. The resin coating 8 is coated on one or both sides of the barrier film 7, so that the barrier film 7 can be prevented from cracking, and the vacuum insulation material can maintain high barrier properties. Fig. 2 shows a case where the resin coating layer 8 is applied to the side of the barrier film 7 away from the resin base material 6, and in other embodiments of the present utility model, a second resin coating layer 8 may be applied between the resin base material 6 and the barrier film 7.
In the present embodiment, the resin coating layer 8 is a polyvinyl alcohol coating layer, an ethylene-vinyl alcohol copolymer coating layer, or an organic-inorganic composite coating layer. In other embodiments of the present utility model, the resin coating 8 is not limited to the above-listed materials, and is not particularly limited herein.
In the present embodiment, the barrier film 7 is a silicon oxide, aluminum oxide, or an organic silicon aluminum phosphide film formed by vapor deposition. The barrier film 7 is a silicon oxide, aluminum oxide or inorganic phosphorus metal oxide film formed by evaporation, has good barrier property and is beneficial to improving the heat preservation effect of the vacuum heat insulation material. In other embodiments of the present utility model, the barrier film 7 is not limited to the above-listed materials, and is not specifically limited herein.
The outer surface of the outer wrapping material 2 is also provided with a protective layer 9, such as a double-layer nylon film, and the protective layer 9 can improve the puncture resistance strength of the outer wrapping material 2, thereby being beneficial to prolonging the service lives of the outer wrapping material 2 and the vacuum heat insulation material.
Further, the catalytic adsorption assembly 3 (shown in fig. 1) further comprises a catalyst 5 (shown in fig. 1). The organic gas released from the resin substrate 6 or the resin coating 8 is decomposed by the catalyst 5 into small molecular substances that the adsorbent 4 can adsorb, and then the adsorbent 4 adsorbs the decomposed small molecular substances.
For example, in the present embodiment, the resin coating 8 releases a gas such as hydrocarbon, and the catalyst 5 catalytically decomposes the gas such as hydrocarbon into small molecular substances such as water, carbon monoxide, or carbon dioxide that the adsorbent 4 (shown in fig. 1) can adsorb.
Through the cooperation of the catalyst 5 and the adsorbent 4, the organic gas which cannot be adsorbed by the adsorbent 4 is finally decomposed and adsorbed by the catalytic adsorption component 3, so that the high vacuum degree inside the vacuum heat insulation material is ensured. Thereby, the influence of the heat bridge phenomenon can be reduced while the vacuum degree of the vacuum heat insulation material is prevented from being reduced, thereby improving the heat insulation effect of the vacuum heat insulation material,
in the present embodiment, the catalyst 5 is any one or more of cerium oxide, cobalt oxide, copper (sub) oxide, manganese oxide, palladium oxide, titanium oxide, and zeolite. In other embodiments of the present utility model, the catalyst 5 is not limited to the materials listed above, but may be other types of materials, and is not specifically limited herein.
In the present embodiment, the catalytic adsorption module 3 is a gas permeable bag body packed with the adsorbent 4 and a gas permeable bag body packed with the catalyst 5. The ventilation bag body can ensure the catalysis and adsorption effects, simultaneously ensures that the positions of the adsorbent 4 and the catalyst 5 in the vacuum heat insulation material are relatively stable, and facilitates the insertion of the catalytic adsorption component 3 into the correct position. The number of the air permeable bags can be multiple, thereby being beneficial to further improving the catalysis and adsorption effects.
Fig. 3 is a schematic view of a cross-sectional view of a vacuum insulation material according to another embodiment of the present utility model, as shown in fig. 3, in which the adsorbent 4 and the catalyst 5 may be placed in the same air permeable bag body.
Fig. 4 is a schematic view of a cross-sectional view of a vacuum insulation material according to still another embodiment of the present utility model, and as shown in fig. 4, in another embodiment of the present utility model, the adsorbent 4 and the catalyst 5 may be sheet-like, granular, or powder-like objects disposed on the core material 1. The contact area between the sheet-shaped, granular and powdery materials and the core material 1 and the outer coating material 2 can be increased, the catalytic effect and the adsorption effect are improved, the vacuum degree of the inner space of the vacuum heat insulating material is improved, and the heat insulating effect is further improved.
Those skilled in the art will appreciate that the specific features of the various embodiments may be adaptively split or combined. Such splitting or combining of specific technical features does not cause the technical solution to deviate from the principle of the present utility model, and therefore, the technical solution after splitting or combining falls within the protection scope of the present utility model. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (9)
1. A vacuum insulation material, comprising:
a core material;
the catalytic adsorption component is arranged on the surface or inside the core material;
a transparent outer wrapping material wrapping the outer circumferences of the core material and the catalytic adsorption component, wherein the outer wrapping material is provided with a resin base material or a resin coating;
the catalytic adsorption component comprises an adsorbent and a catalyst, wherein the catalyst can be used for catalytically decomposing organic gas which cannot be adsorbed by the adsorbent into micromolecular substances which can be adsorbed by the adsorbent.
2. The vacuum insulation material according to claim 1, wherein the exterior cover has a resin base material, a barrier film coated on the resin base material, and the resin coating layer coated on one or both sides of the barrier film.
3. The vacuum insulation material according to claim 2, wherein the barrier film is a silicon oxide, aluminum oxide, or inorganic phosphated metal oxide film formed by vapor deposition.
4. A vacuum insulation material according to any one of claims 1 to 3, wherein the adsorbent is calcium oxide.
5. A vacuum insulation material according to any one of claims 1 to 3, wherein the catalyst is any one or more of cerium oxide, cobalt oxide, copper oxide, manganese oxide, palladium oxide, titanium oxide, zeolite.
6. The vacuum insulation material according to claim 1, wherein the catalytic adsorption unit is in the form of a sheet, a granule, a powder, or is packed with a gas permeable bag.
7. The vacuum insulation material according to claim 1, wherein the small molecular substance is water, carbon monoxide or carbon dioxide.
8. The vacuum insulation material according to claim 1, wherein the resin coating is a polyvinyl alcohol coating, an ethylene-vinyl alcohol copolymer coating, or an organic-inorganic composite coating.
9. The vacuum insulation material according to claim 1, wherein the outer surface of the exterior sheathing material is further provided with a protective layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320344604.2U CN219639792U (en) | 2023-02-27 | 2023-02-27 | Vacuum heat insulating material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320344604.2U CN219639792U (en) | 2023-02-27 | 2023-02-27 | Vacuum heat insulating material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219639792U true CN219639792U (en) | 2023-09-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320344604.2U Active CN219639792U (en) | 2023-02-27 | 2023-02-27 | Vacuum heat insulating material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219639792U (en) |
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2023
- 2023-02-27 CN CN202320344604.2U patent/CN219639792U/en active Active
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