CN107379215B - Method for manufacturing aluminum foil cement composite thermal insulation material - Google Patents
Method for manufacturing aluminum foil cement composite thermal insulation material Download PDFInfo
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- CN107379215B CN107379215B CN201710750566.XA CN201710750566A CN107379215B CN 107379215 B CN107379215 B CN 107379215B CN 201710750566 A CN201710750566 A CN 201710750566A CN 107379215 B CN107379215 B CN 107379215B
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- aluminum foil
- cement
- gypsum
- preparing
- foam cement
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- 239000004568 cement Substances 0.000 title claims abstract description 53
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 49
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 239000011888 foil Substances 0.000 title claims abstract description 48
- 239000002131 composite material Substances 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 239000012774 insulation material Substances 0.000 title abstract description 10
- 238000000034 method Methods 0.000 title abstract description 7
- 239000010440 gypsum Substances 0.000 claims abstract description 39
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 29
- 239000006260 foam Substances 0.000 claims abstract description 28
- -1 polypropylene Polymers 0.000 claims abstract description 23
- 239000000835 fiber Substances 0.000 claims abstract description 22
- 239000004743 Polypropylene Substances 0.000 claims abstract description 19
- 229920001155 polypropylene Polymers 0.000 claims abstract description 19
- 239000011810 insulating material Substances 0.000 claims abstract description 9
- 238000002360 preparation method Methods 0.000 claims description 12
- 238000005187 foaming Methods 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 239000011265 semifinished product Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 6
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 239000004814 polyurethane Substances 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 238000004381 surface treatment Methods 0.000 claims description 6
- 239000011398 Portland cement Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000009966 trimming Methods 0.000 claims description 3
- 238000007580 dry-mixing Methods 0.000 claims description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract description 6
- 238000005034 decoration Methods 0.000 abstract description 6
- 238000004321 preservation Methods 0.000 abstract description 6
- 238000009413 insulation Methods 0.000 abstract description 3
- 231100000252 nontoxic Toxicity 0.000 abstract description 3
- 230000003000 nontoxic effect Effects 0.000 abstract description 3
- 239000002344 surface layer Substances 0.000 abstract description 3
- 239000002341 toxic gas Substances 0.000 abstract description 3
- 238000005336 cracking Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 15
- 229920003023 plastic Polymers 0.000 description 8
- 239000004033 plastic Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000002932 luster Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 239000004566 building material Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
Images
Classifications
-
- 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
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
- B28B1/522—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement for producing multi-layered articles
-
- 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
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/50—Producing shaped prefabricated articles from the material specially adapted for producing articles of expanded material, e.g. cellular concrete
Abstract
A method for manufacturing an aluminum foil cement composite heat-insulating material comprises the steps of preparing polypropylene short fibers, preparing a gypsum shell, preparing foam cement and preparing the composite material. The prepared aluminum foil cement composite thermal insulation material has the advantages that: (1) Has excellent heat preservation and insulation functions, and is a house inner wall heat preservation and decoration material particularly suitable for high-cold or high-altitude areas; (2) The aluminum foil and the cement are nontoxic materials, and toxic gases such as formaldehyde and the like cannot be generated; (3) The aluminum foil is compounded with the foam cement board, the aluminum foil on the surface layer not only keeps the characteristics of high hardness and high tensile strength, but also greatly increases the tear resistance and is very difficult to tear; (4) Although the cost is low, the product can be used as a high-grade building decoration material; (5) The polypropylene short fibers are added into the foam cement, so that the foam cement has high strength and certain toughness, the composite material integrally shows good strength and toughness, and the phenomena of cracking, breaking, deformation and the like caused by collision or use are effectively avoided.
Description
Technical Field
The invention belongs to the field of building heat-insulating materials, and particularly relates to a manufacturing method of an aluminum foil cement composite heat-insulating material.
Background
At present, heat insulation and decoration panels used by building curtain walls at home and abroad are generally made of aluminum-plastic plates. The aluminum-plastic plate is compounded by multiple layers of materials, the upper layer and the lower layer are high-purity aluminum alloy plates, the middle layer is a nontoxic low-density Polyethylene (PE) core plate, and the front surface of the aluminum-plastic plate is coated with a non-fluorocarbon resin coating. This material is widely used in interior wall masonry panels, ceilings, balconies, indoor compartments, equipment units in buildings. The advantages of the aluminum-plastic panel are not detailed here, but the disadvantages are obvious: 1. because the aluminum alloy plate is used, the thickness of the aluminum alloy plate is 0.15-0.5 mm, the consumption of the aluminum material is large, and the price of the aluminum plate is high; 2. the middle layer adopts a polyethylene core plate. According to the domestic market price in 2017, the raw material of the common polyethylene is 13000 yuan per ton, and the raw material of the common polyethylene is 21000 yuan per ton after being processed into a plate, so the price is high. Therefore, the cost of the aluminum-plastic panel used as the inner wall decoration and insulation material is high, thereby limiting the use of the aluminum-plastic panel in large quantities. How to reduce the material and production cost and manufacture a high-grade building material with low price and good heat preservation performance is a technical problem to be solved urgently. In view of the above, the inventor proposes a method for manufacturing an aluminum foil cement composite thermal insulation material.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide an aluminum foil cement composite thermal insulation material which is low in price and good in thermal insulation performance.
The purpose of the invention is realized by adopting the following technical scheme. According to the aluminum foil cement composite heat-insulating material provided by the invention, the aluminum foil cement composite heat-insulating material comprises a gypsum shell 4, wherein the middle part of the gypsum shell 4 is provided with a through hole 41 which penetrates through the through hole so as to form an inner layer 42 and an outer layer 43, and the inner layer 42 and the outer layer 43 form an accommodating space 44 with an open top; foam cement 2 is poured in the accommodating space 44; the outer surface of the gypsum shell 4 is bonded with an aluminum foil 5 through a polyurethane adhesive, and the outer surface of the aluminum foil 5 is sprayed with a non-fluorocarbon resin coating.
Furthermore, the aluminum foil 5 is used for replacing the traditional aluminum-plastic plate on the surface layer of the material, and the thickness of the aluminum foil 5 is only 0.005-0.009 mm and is only 1/30-1/50 of that of the aluminum-plastic plate. The aluminum foil is natural and oxidation-resistant, and is a high-grade decoration and packaging material.
Further, foam cement 2 is mainly adopted in the accommodating space 44 (inside the gypsum shell 4). The foam cement 2 is a good heat-insulating material because bubble-shaped cavities (namely air holes 1) are formed in the foam cement 2, air is filled in the cavities, and the thermal conductivity of the air is far lower than that of a solid material. More importantly, the price of the cement is low, and the market price in 2017 is only 300-400 yuan/ton, which is only 1/70 of the price of the polyethylene material.
Furthermore, the pressed foam cement 2 is connected into a whole by the aluminum foil 5 through the polyurethane adhesive, so that the high-grade composite material with high heat load reflectivity, low heat conduction speed, low price and high grade is obtained. Because of excellent heat preservation effect, the material is most suitable for being used as the heat preservation material of the inner wall of buildings in high latitude, high altitude and energy-deficient areas, and is also suitable for being used as the heat preservation and decoration material of the inner wall of various commercial and civil buildings.
The purpose of the invention is realized by adopting the following technical scheme. The manufacturing method of the aluminum foil cement composite heat-insulating material provided by the invention comprises the following steps of preparing polypropylene short fibers, preparing a gypsum shell, preparing foam cement and preparing the composite material, wherein the specific processes of the steps are as follows:
a. preparation of polypropylene staple fibers
Cutting the polypropylene long fiber with the diameter of 18-22 mu m into short fiber with the length of 1-5 mm;
b. preparation of Gypsum housing
Fully mixing gypsum and polypropylene short fibers according to the mass ratio of (50-120) to 1, and adding warm water at 40-50 ℃, wherein the ratio of the mixed materials to the warm water is (1-2.5) to 1; after fully stirring, pouring the gypsum into a gypsum forming die, and taking out the gypsum shell for later use after solidification;
c. preparation of foamed cement
(1) Mixing material
Fully mixing 150-280 g of ordinary portland cement, 12-25 g of 27.5% hydrogen peroxide and 1.5-5.5 g of polypropylene short fibers, and dry-mixing in a stirrer for 2-5 minutes; then adding 80-130 g of water for wet mixing for 2-5 minutes, and adjusting the pH = 13-14 of the mixed material;
(2) Pouring, foaming and demoulding
Pouring the mixed material in the step (1) into a gypsum shell, carrying out foaming reaction in a foaming machine, carrying out the foaming process for 4-6 minutes, demoulding and taking out a foam cement semi-finished product after cement is solidified;
(3) Surface treatment
Cutting, trimming and polishing the foam cement semi-finished product to ensure that the foam cement semi-finished product has consistent size and the outer surface of the gypsum shell is flat, smooth and complete;
d. preparation of composite materials
(1) Bonding of
Uniformly coating a layer of polyurethane adhesive on the outer surface of the gypsum shell, then bonding the cut aluminum foil on the outer surface of the gypsum shell, and ensuring that the bonded outer surface is smooth and flat without damage;
(2) Surface treatment
And spraying a non-fluorocarbon resin coating on the outer surface of the aluminum foil.
The aluminum foil cement composite thermal insulation material and the manufacturing method thereof have the advantages that:
(1) The composite material is used as an inner wall heat-insulating decorative material, has excellent heat-insulating and heat-insulating effects, and is particularly suitable for the house inner wall heat-insulating decorative material in high-cold or high-altitude areas. This is because the three ways of heat transfer are thermal radiation, thermal conduction and thermal convection. In winter, the window is basically closed, and the heat loss caused by heat convection is negligible. The reflectivity of the aluminum foil to heat radiation is as high as 0.95, and most of heat radiation heat generated by indoor electric appliances and lamplight cannot be dissipated to the outside of a room under the closed condition if indoor walls and ceilings are both made of the composite material. For heat conduction, the foam cement of the inner layer of the composite material can effectively prevent indoor heat conduction. The porous structure exists in the foam cement, the holes are filled with air, and the heat conductivity coefficient of the air is only 0.029W/(m & lt K & gt) which is far smaller than that of the solid, so that the resistance of heat transfer through the air holes is large, and the indoor heat transfer speed is greatly reduced;
(2) The aluminum foil and the cement are nontoxic materials, and toxic gases such as formaldehyde and the like cannot be generated. Toxic gas is not released even under the conditions of big fire and high temperature;
(3) The aluminum foil has high hardness and high tensile strength. After the composite material is prepared, the aluminum foil is compounded with the foam cement board, the aluminum foil on the surface layer not only keeps the characteristics of high hardness and high tensile strength, but also greatly increases the tear strength and is very difficult to tear;
(4) The aluminum foil can be called as a natural decorative material, cannot be oxidized, presents natural metal luster, and is a high-grade building decorative material although the manufactured composite material is low in price;
(5) The polypropylene short fibers are added into the foam cement, so that the foam cement has high strength and certain toughness, the composite material integrally shows good strength and toughness, and the phenomena of cracking, breaking, deformation and the like caused by collision or use are effectively avoided.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic cross-sectional view of an aluminum foil cement composite thermal insulation material of the present invention.
Fig. 2 is a schematic view of a gypsum casing of the present invention.
[ description of main element symbols ]
1: air hole
2: foam cement
3: polypropylene short fiber
4: plaster shell
5: aluminum foil
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the preferred embodiments, structures, characteristics and effects of the aluminum foil cement composite thermal insulation material according to the present invention will be provided with reference to the accompanying drawings.
Referring to fig. 1 and 2, the aluminum foil cement composite thermal insulation material of the present invention includes a gypsum shell 4, a through hole 41 is formed in the middle of the gypsum shell 4 to form an inner layer 42 and an outer layer 43, and the inner layer 42 and the outer layer 43 form an accommodating space 44 with an open top; foam cement 2 is poured in the accommodating space 44; the outer surface of the gypsum shell 4 is bonded with an aluminum foil 5 through a polyurethane adhesive, and the outer surface of the aluminum foil 5 is sprayed with a non-fluorocarbon resin coating.
Preferably, the through holes 41 may be square, circular or diamond-shaped, and the shape and size thereof are not limited by the present invention.
Preferably, the aluminum foil 5 can be a smooth foil, so that the natural metal luster of the aluminum is maintained; the surface of the aluminum foil can also be pressed into various patterns by adopting an embossing foil; the colored aluminum foil or the printed aluminum foil can be used to generate various colors and pattern effects, but the invention does not limit the type of the aluminum foil and the user can select the color and pattern effects independently.
Example one
The manufacturing method of the aluminum foil cement composite heat-insulating material provided by the invention comprises the following steps of preparing polypropylene short fibers, preparing a gypsum shell, preparing foam cement and preparing the composite material, wherein the specific processes of the steps are as follows:
a. preparation of polypropylene staple fibers
Cutting the polypropylene long fiber with the diameter of 20 mu m into short fiber with the length of 1-2 mm;
b. preparation of Gypsum housing
The gypsum and the polypropylene short fibers are fully mixed according to the mass ratio of 100 to 1, and then warm water is added, wherein the ratio of the mixed materials to the water is 2. After fully stirring, pouring the gypsum into a gypsum forming die, and taking out the gypsum shell for later use after solidification;
c. preparation of foamed cement
(1) Mixing material
200g of ordinary portland cement, 15g of 27.5% hydrogen peroxide and 2.5g of polypropylene short fibers were thoroughly mixed and dry-blended in a blender for 2 minutes. Then adding 120g of water for wet mixing for 2 minutes, and adjusting the pH = 13-14 of the mixed material;
(2) Pouring, foaming and demoulding
Pouring the mixed material into a gypsum shell, carrying out foaming reaction in a foaming machine for about 4-6 minutes, demoulding and taking out a foam cement semi-finished product after the cement is solidified;
(3) Surface treatment
Cutting, trimming and polishing the foam cement semi-finished product to make the foam cement semi-finished product consistent in size and the outer surface of the gypsum shell flat, smooth and complete;
d. preparation of composite materials
(1) Bonding of
Uniformly coating a layer of polyurethane adhesive on the outer surface of the gypsum shell, then bonding the cut aluminum foil on the outer surface of the gypsum shell, and ensuring that the bonded outer surface is smooth and flat without damage;
(2) Surface treatment
And spraying a non-fluorocarbon resin coating on the outer surface of the aluminum foil to prevent the surface of the aluminum foil from being scratched.
The above description is only a preferred embodiment of the present invention, and any simple modification, equivalent change and modification made by those skilled in the art according to the technical essence of the present invention are within the technical scope of the present invention.
Claims (1)
1. The manufacturing method of the aluminum foil cement composite heat-insulating material is characterized by comprising the following steps of preparing polypropylene short fibers, preparing a gypsum shell, preparing foam cement and preparing the composite material:
a. preparation of polypropylene staple fibers
Cutting the polypropylene long fiber with the diameter of 18-22 mu m into short fiber with the length of 1-5 mm;
b. preparation of Gypsum housing
Fully mixing gypsum and polypropylene short fibers according to the mass ratio of (50-120) to 1, and adding warm water at 40-50 ℃, wherein the ratio of the mixed materials to the warm water is (1-2.5) to 1; after fully stirring, pouring the gypsum into a gypsum forming die, and taking out the gypsum shell for later use after solidification;
c. preparation of foamed cement
(1) Mixing material
Fully mixing 150-280 g of ordinary portland cement, 12-25 g of 27.5% hydrogen peroxide and 1.5-5.5 g of polypropylene short fibers, and dry-mixing in a stirrer for 2-5 minutes; then adding 80-130 g of water for wet mixing for 2-5 minutes, and adjusting the pH = 13-14 of the mixed material;
(2) Pouring, foaming and demoulding
Pouring the mixed material obtained in the step (1) into a gypsum shell, carrying out foaming reaction in a foaming machine for 4-6 minutes, demoulding and taking out a foam cement semi-finished product after cement is solidified;
(3) Surface treatment
Cutting, trimming and polishing the foam cement semi-finished product to make the foam cement semi-finished product consistent in size and the outer surface of the gypsum shell flat, smooth and complete;
d. preparation of composite materials
(1) Bonding of
Uniformly coating a layer of polyurethane adhesive on the outer surface of the gypsum shell, and then bonding the cut aluminum foil on the outer surface of the gypsum shell;
(2) Surface treatment
And spraying a non-fluorocarbon resin coating on the outer surface of the aluminum foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710750566.XA CN107379215B (en) | 2017-08-28 | 2017-08-28 | Method for manufacturing aluminum foil cement composite thermal insulation material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710750566.XA CN107379215B (en) | 2017-08-28 | 2017-08-28 | Method for manufacturing aluminum foil cement composite thermal insulation material |
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| Publication Number | Publication Date |
|---|---|
| CN107379215A CN107379215A (en) | 2017-11-24 |
| CN107379215B true CN107379215B (en) | 2023-03-14 |
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| CN113910415B (en) * | 2021-11-03 | 2023-09-29 | 湖南绿生永固新材料有限公司 | Preparation method of aerated concrete block |
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| CN202131727U (en) * | 2011-04-11 | 2012-02-01 | 戴佳筑 | Sun-shading board for sunlight room |
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| CN105220778A (en) * | 2015-10-27 | 2016-01-06 | 张荣斌 | A kind of external wall heat insulation structural |
| CN207290395U (en) * | 2017-08-28 | 2018-05-01 | 洛阳理工学院 | A kind of aluminium foil cement composite heat preserving material |
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2017
- 2017-08-28 CN CN201710750566.XA patent/CN107379215B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007170157A (en) * | 2005-12-22 | 2007-07-05 | Shuhei Noguchi | Thermal barrier and thermal insulation cemented excelsior board |
| CN2883535Y (en) * | 2006-01-25 | 2007-03-28 | 吴浩民 | Compounded building wall building blocks |
| CN201738488U (en) * | 2010-08-13 | 2011-02-09 | 胡瑞清 | Z type mixed core-filled building block |
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| CN202000507U (en) * | 2011-04-08 | 2011-10-05 | 李明忠 | Aluminum foil air layer compounded heat-insulating plate |
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Application publication date: 20171124 Assignee: Yilv Technology (Luoyang) Co.,Ltd. Assignor: LUOYANG INSTITUTE OF SCIENCE AND TECHNOLOGY Contract record no.: X2023980054373 Denomination of invention: A manufacturing method of aluminum foil cement composite insulation material Granted publication date: 20230314 License type: Common License Record date: 20240103 |
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