WO2016064138A1 - 다공성 알루미노실리케이트를 포함하는 진공 단열재용 심재와 이를 구비한 진공 단열재 - Google Patents
다공성 알루미노실리케이트를 포함하는 진공 단열재용 심재와 이를 구비한 진공 단열재 Download PDFInfo
- Publication number
- WO2016064138A1 WO2016064138A1 PCT/KR2015/010914 KR2015010914W WO2016064138A1 WO 2016064138 A1 WO2016064138 A1 WO 2016064138A1 KR 2015010914 W KR2015010914 W KR 2015010914W WO 2016064138 A1 WO2016064138 A1 WO 2016064138A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vacuum insulation
- core material
- porous aluminosilicate
- surface area
- vacuum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific 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
- F16L59/04—Arrangements using dry fillers, e.g. using slag wool
-
- 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
Definitions
- Core material for vacuum insulator including porous aluminosilicate and vacuum insulator with same
- the present invention relates to a vacuum insulator core material including a porous aluminosilicate and a vacuum insulator having the same.
- Vacuum insulating material that is conventionally used is, for example, as disclosed in the Republic of Korea Patent Publication No. 2011-0077860 (July 07, 2011), the core material for maintaining the shape of the insulating material while supporting the pressure difference between the inside and outside of the insulating material ( core material, outer shell material for enclosing the core material and maintaining a vacuum state inside the insulation, and a getter for maintaining a long time vacuum by adsorbing residual gas and gas penetrating from the inside of the insulation. ).
- These vacuum insulation materials are manufactured in various sizes and shapes, and are mainly used in the construction field and the electronic product field.
- the glass fiber wool used as the core material of the existing vacuum insulation material is manufactured through a thermocompression process by collecting bulky glass fibers, and it is possible to secure insulation performance of 0.45 W / mK level by using this.
- the glass fiber has a problem that the long-term durability is lowered by the heat conductivity is increased by the gas permeated through the outer shell material when used for a long time.
- the glass fiber board has a limitation that the initial heat insulation performance is relatively low.
- the vacuum insulation material using glass fiber as the core material is poor in long-term durability or initial thermal insulation performance, the long-term life as a building material and electronic There is a problem that makes it difficult to secure the reliability of the product.
- the vacuum insulation material using the glass fiber has a disadvantage that the manufacturing cost is high, and the molding properties are poor.
- the getter also has a number of limitations such as high raw material cost, high temperature (for example, 300 or more) heat treatment for activation before use, or additional absorption agent for moisture absorption.
- the present invention is to provide a core material for a vacuum insulator that can have an improved gas adsorption force and exhibit excellent heat insulating performance.
- the present invention is to provide a vacuum insulator provided with the core material.
- a core material for vacuum insulation comprising a porous aluminosilicate having an argon adsorption Brunner-Emmett-Teller (BET) surface area of at least 300 n / g and an external specific surface area (ESA) of at least 150 m Vg.
- BET argon adsorption Brunner-Emmett-Teller
- ESA external specific surface area
- the porous aluminosilicate may be one having a Barrett-Joiner-Hilda (BJH) desorption average pore width of 5 to 15 nm.
- the porous aluminosilicate may be one having pores that satisfy the following Equation 1:
- V mes o / V micro 3.0
- V mes ⁇ is the Barrett-Joiner-Hellenda (BJH) cumulative volume for mesopores with a pore size of 2 to 300 nm,
- the porous aluminosilicate is under isothermal conditions of 25 ° C, 22 when more than 18 parts by weight 0/0 when hayeoteul humidified to a relative humidity of 80% has a moisture absorption, hayeoteul humidified to a relative humidity of 90% by weight % or more has a moisture absorption rate, it may be one having a weight of 25 0/0 yisangwa moisture absorption when humidified to a relative humidity of 95%.
- a vacuum insulating material including the core material and the outer cover material to seal the core material.
- a core material for a vacuum insulation material and a vacuum insulation material having the same according to embodiments of the present invention will be described.
- a core material for vacuum insulation comprising a porous aluminosilicate having an argon adsorption Brunner-Emmett-Teller (BET) surface area of at least 300 inVg and an external specific surface area (ESA) of at least 150 inVg.
- BET argon adsorption Brunner-Emmett-Teller
- the porous aluminosilicate that satisfies the above properties can lower the increase of thermal conductivity when the pressure is increased, and has chemical stability against moisture, and as a core material for vacuum insulation It was confirmed that it can be used suitably.
- the thermal conductivity of the vacuum insulator increases with time, and in particular, the vacuum insulator including the core according to the embodiment of the present invention has a high thermal conductivity. The rise may exhibit a minimized characteristic.
- the core material according to the embodiment of the present invention may be made of porous aluminosilicate, which is an inorganic material, and may exhibit excellent long-term durability while having a low raw material cost. Furthermore, the core according to the embodiment of the invention has improved gas adsorption (especially good absorption). Furthermore, the core material is excellent in chemical and thermal stability so that substantially no gas is generated from the core material, and the core material can effectively adsorb gas penetrated from the outside through the envelope material.
- the core material according to the embodiment of the present invention has an improved gas adsorption force (especially excellent absorption force) to efficiently adsorb the gas penetrated from the outside, thereby minimizing the decrease in the degree of vacuum through which a more improved and stable thermal insulation performance can be expressed. To help.
- This effect can be expressed by applying a porous aluminosilicate satisfying the physical properties according to the embodiment of the invention to the core material.
- a significant difference in physical properties as a core material for vacuum insulation material may be shown depending on the specific surface area of porous aluminosilicate, average pore width, volume ratio of mesopore and micropore. It was confirmed that. And, due to such a marked difference in physical properties, it can exhibit a large difference in the long-term durability and thermal insulation performance of the vacuum insulation. Furthermore, by using such a core material, the fall of the vacuum degree can be minimized without a separate getter or absorbent, so that the structure and manufacturing process of the vacuum insulator can be simplified.
- the core for insulation includes a porous aluminosilicate having an argon adsorption Brunner-Emmett-Teller (BET) surface area of at least 300 mVg and an external specific surface area (ESA) of at least 150 mVg.
- BET argon adsorption Brunner-Emmett-Teller
- ESA external specific surface area
- Porous aluminosilicate used as the core material is 300 m ! Argon adsorption Brunner-Emet-Teller (BET) surface area of at least / g and external specific surface area (ESA) of at least 150 mVg, resulting in structural stability and long-term as core While durability can be secured, it is possible to secure minimized thermal conductivity and stable thermal insulation performance.
- BET Argon adsorption Brunner-Emet-Teller
- the external specific surface area (ESA) of the porous aluminosilicate is the difference between the Brunner-Emmett-Teller (BET) surface area of the porous aluminosilicate and the specific surface area from the micropores, Can be estimated.
- the micropores are pores having a pore size of less than 2 nm, the specific surface area from the micropores can be estimated from the t-plot method, for example.
- the porous aluminosilicate is 300 to 700 m 2 / g, or 300 to 650 n / g, or 350 to 650 irf / g, or 350 to 600 m 2 / g, or 350 to 550 in 2 / g of argon adsorption Brunner-Emmett-Teller (BET) surface area; Having an external specific surface area (ESA) of at least 150 nf / g, or from 150 to 300 m 2 / g, or from 150 to 250 m 2 / g, or from 200 to 250 m 2 / g, is more effective in expressing the effects described above. May be advantageous.
- the argon adsorption Brunner-Emmett-Teller (BET) surface area of the porous aluminosilicate is less than 300 nf / g or the external specific surface area (ESA) is less than 150 m Vg, the conditions of 25 ° C. % or more under a relative humidity exhibits a poor moisture absorption of less than 20 parts by weight 0/0, it is not suitable as core material for vacuum insulation materials.
- BET argon adsorption Brunner-Emmett-Teller
- the porous aluminosilicate has a Barrett-Joiner-Hilda (BJH) desorption average pore width of 5 to 15 nm, or 6 to 14 nm, or 6 to 12 nm. It may be more advantageous in the expression of one effect.
- BJH Barrett-Joiner-Hilda
- the porous aluminosilicate may be one having pores that satisfy the following formula 1:
- V mes ⁇ is for mesopores with a pore size of 2 to 300 nm.
- ⁇ ⁇ is the volume of micropores having a pore size of less than 2 nm calculated by t-plot method from argon adsorption Brunner-Emmett-Teller (BET) surface area.
- the porous aluminosilicate may exhibit more enhanced gas adsorption power having V meso I Vmicro 3/4 which is greater than 3, preferably 3.1 or more, or 3.1 to 5.0, or 3.1 to 4.7, or 3.5 to 4.7.
- Typical commercially available zeolites e.g., zeolite 13X, such as Sigma-Aldrich, Inc.
- zeolite 13X such as Sigma-Aldrich, Inc.
- porous aluminosilicates having the structural properties of the above-described conditions according to embodiments of the invention may exhibit high absorption rates of more than 30% by weight, especially under high relative humidity.
- a porous aluminosilicate is, when humidified to a relative humidity of 80% under isothermal conditions of 25 ° C 18 parts by weight 0/0 or more, preferably of 18 to 25% by weight of moisture absorption according to the invention, the embodiment of It can represent the rate.
- silicate is of 25 ° C and the like when the humidifier to a relative humidity of 90% under the conditions 22 parts by weight 0/0 or more, preferably 22 to 27% by weight and exhibit a moisture absorption Can be.
- porous aluminosilicate according to the embodiment of the present invention may exhibit a moisture absorption of 25% by weight or more, preferably 25 to 35% by weight when humidified at 95% relative humidity under 25 ° C isothermal conditions.
- the vacuum insulator including the porous aluminosilicate as a core material can effectively adsorb the gas infiltrated from the outside through the residual gas and the outer shell material in the insulation, thereby reducing the degree of vacuum and improving and stable for a long time. Insulation performance can be exhibited.
- porous aluminosilicates having the structural characteristics of the aforementioned conditions can be prepared in various ways, preferably porous aluminosilicates in coupled alkali-mediated dissolution and aqueous media. It can be prepared by precipitation reaction of the precursor.
- silicon sources fumed silica, silicates, aluminosilicates, clays, minerals, metacarlins, activated clays, fly ash, slag, pozzolan, and the like may be used.
- aluminum sources alumina, aluminate, aluminum salt, clay, metakaolin, activated clay, fly ash, slag, pozzolane, and the like may be used.
- a basic or alkaline solution e.g. sodium hydroxide solution
- Porous aluminosilicate with particularly good absorption by heat-treating a geopolymer resin that satisfies a specific metal atomic ratio under atmospheric pressure and low temperature (for example 60 to 80 ° C., preferably 65 to 75 ° C) conditions, Porous aluminosilicate with particularly good absorption) can be obtained.
- a specific metal atomic ratio for example 60 to 80 ° C., preferably 65 to 75 ° C
- a vacuum insulator comprising the above-described core material and the outer cover material to seal the core material.
- the core 120 includes porous aluminosilicates having an argon adsorption Brunner-Emmett-Teller (BET) surface area of at least 300 niVg and an external specific surface area (ESA) of at least 150 ii / g.
- BET argon adsorption Brunner-Emmett-Teller
- ESA external specific surface area
- the outer shell material 110 is provided in a form of sealing and wrapping the core material 120.
- Conventional vacuum insulators generally have a getter or absorbent provided inside the core to adsorb residual gas inside the insulator and gases penetrating from the outside.
- the vacuum insulator according to the embodiment of the invention is a long-term as a core material
- the vacuum insulator according to the embodiment of the invention is a long-term as a core material
- the envelope 110 may be a laminate having a gas barrier property.
- the envelope material 110 may be a laminate in which an adhesive layer, a barrier layer, and a surface protective layer are sequentially stacked.
- the adhesive layer is a layer that is fused to each other by heat sealing.
- the 'such adhesive layer for example, high density polyethylene, low density polyethylene, linear low density polyethylene, unoriented polypropylene, oriented polypropylene, polyvinylidene chloride, polyvinyl chloride, ethylene-vinyl acetate copolymer, ethylene-vinyl alcohol Aerial Resin, which is easy to be thermally fused such as coalescence, may be applied.
- the barrier layer is a layer for blocking gas penetrating from the outside and protecting the core material, and may be a metal thin film having a thickness of about 5 to 10.
- the material of the barrier layer is not particularly limited, and for example, an aluminum thin film may be applied.
- the surface protection layer is a layer for preventing cracks from occurring in the barrier layer, which is a metal material, and may be a plastic film having a thickness of about 10 to 15.
- the material of the surface protective layer is also not particularly limited, and for example, a polyethylene terephthalate film, a polyvinylidene chloride film, a nylon film, other vinyl resin film, or the like may be applied.
- the vacuum insulating material may be manufactured by placing the core material between the two outer shell material, and then thermally compressing it in the chamber under reduced pressure.
- the core material for vacuum insulation according to the present invention has excellent long-term durability and improved gas adsorption (particularly good absorption) while having a low raw material cost. Vacuum insulation including such a core material can minimize the decrease in the degree of vacuum without a separate getter or absorbent can provide a more improved thermal insulation performance.
- FIG. 1 is a cross-sectional view schematically showing a vacuum insulator according to an embodiment of the present invention.
- the geopolymer resin was heated in an oven at atmospheric pressure and 70 ° C. for one day to obtain a geopolymer resin of pH 14 level. Distilled water was added to the heat-treated geopolymer resin in an amount of tertiary distilled water, and the resultant was centrifuged at 10000 rpm for 5 minutes to decantation the clear supernatant at pH 14. This washing, centrifugation and decantation steps were repeated until the supernatant was at pH 7 level.
- a porous aluminosilicate was obtained in the same manner as in Example 1, except that 4.88 g of the tertiary distilled water was further added (ie, a total of 10.31 g of the tertiary distilled water was added) in the step of obtaining the geopolymer resin. . Comparative Example 2
- a zeolite 13X product from Sigma-Aldrich was prepared.
- BET Brunauer-Emmett-Teller
- V meso (cuf / g): Barrett-Joiner-Halenda (BJH) cumulative volume for mesopores with a pore size of 2 to 300 nm.
- BJH Barrett-Joiner-Halenda
- Vrmcro (Cltf / g): volume of micropores having a pore size of less than 2 nm calculated by t-plot method from argon adsorption Brunner-Emmett-Teller (BET) surface area
- the porous aluminosilicate according to Examples 1 and 2 has a large external specific surface area (ESA) and a BJH desorption average pore width, and the volume of mesopores compared to the volume of micropores. It was found to be about 4.5 times or more. Accordingly, it was confirmed that the porous aluminosilicates of Examples 1 and 2 exhibited high absorption rates of up to 30% by weight under relative humidity of 80% or more, and thus could be suitably used as core materials for vacuum insulators.
- ESA external specific surface area
- BJH desorption average pore width the volume of mesopores compared to the volume of micropores. It was found to be about 4.5 times or more. Accordingly, it was confirmed that the porous aluminosilicates of Examples 1 and 2 exhibited high absorption rates of up to 30% by weight under relative humidity of 80% or more, and thus could be suitably used as core materials for vacuum insulators.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201580053781.3A CN106795993B (zh) | 2014-10-20 | 2015-10-15 | 包含多孔铝硅酸盐的用于真空绝热板的芯材以及具有该芯材的真空绝热板 |
| US15/514,318 US10226751B2 (en) | 2014-10-20 | 2015-10-15 | Core material for vacuum insulation panel including porous aluminosilicate, and vacuum insulation panel provided with the same |
| JP2017516682A JP6647717B2 (ja) | 2014-10-20 | 2015-10-15 | 多孔性アルミノシリケートを含む真空断熱材用芯材とこれを備えた真空断熱材 |
| EP15851824.1A EP3184873B1 (en) | 2014-10-20 | 2015-10-15 | Vacuum insulation panel comprising a porous aluminosilicate core material and a shell |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2014-0142002 | 2014-10-20 | ||
| KR20140142002 | 2014-10-20 | ||
| KR1020150142296A KR101767658B1 (ko) | 2014-10-20 | 2015-10-12 | 다공성 알루미노실리케이트를 포함하는 진공 단열재용 심재와 이를 구비한 진공 단열재 |
| KR10-2015-0142296 | 2015-10-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016064138A1 true WO2016064138A1 (ko) | 2016-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/KR2015/010914 Ceased WO2016064138A1 (ko) | 2014-10-20 | 2015-10-15 | 다공성 알루미노실리케이트를 포함하는 진공 단열재용 심재와 이를 구비한 진공 단열재 |
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| WO (1) | WO2016064138A1 (ko) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108602980A (zh) * | 2016-09-09 | 2018-09-28 | Lg化学株式会社 | 包含硅铝酸盐颗粒的橡胶用增强材料以及包含该增强材料的轮胎用橡胶组合物 |
| CN108602994A (zh) * | 2016-09-09 | 2018-09-28 | Lg化学株式会社 | 包含硅铝酸盐颗粒的橡胶用增强材料以及包含其的轮胎用橡胶组合物 |
| WO2018187330A1 (en) * | 2017-04-03 | 2018-10-11 | Yotta Solar, Inc. | Thermally regulated modular energy storage device and methods |
| CN114383370A (zh) * | 2020-10-20 | 2022-04-22 | 惠而浦公司 | 用于真空绝缘结构的绝缘材料及其形成方法 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108602980A (zh) * | 2016-09-09 | 2018-09-28 | Lg化学株式会社 | 包含硅铝酸盐颗粒的橡胶用增强材料以及包含该增强材料的轮胎用橡胶组合物 |
| CN108602994A (zh) * | 2016-09-09 | 2018-09-28 | Lg化学株式会社 | 包含硅铝酸盐颗粒的橡胶用增强材料以及包含其的轮胎用橡胶组合物 |
| EP3401359A4 (en) * | 2016-09-09 | 2019-01-16 | LG Chem, Ltd. | RUBBER REINFORCEMENT WITH ALUMINOSILICATE PARTICLES AND TIRE RUBBER COMPOSITION THEREWITH |
| CN108602994B (zh) * | 2016-09-09 | 2020-08-21 | Lg化学株式会社 | 包含硅铝酸盐颗粒的橡胶用增强材料以及包含其的轮胎用橡胶组合物 |
| CN108602980B (zh) * | 2016-09-09 | 2020-09-15 | Lg化学株式会社 | 包含硅铝酸盐颗粒的橡胶用增强材料以及包含该增强材料的轮胎用橡胶组合物 |
| US10815358B2 (en) | 2016-09-09 | 2020-10-27 | Lg Chem, Ltd. | Reinforcing material for rubber comprising aluminosilicate particles and rubber composition for tires comprising the same |
| US10875980B2 (en) | 2016-09-09 | 2020-12-29 | Lg Chem, Ltd. | Reinforcing material for rubber comprising aluminosilicate particles and rubber composition for tires comprising the same |
| WO2018187330A1 (en) * | 2017-04-03 | 2018-10-11 | Yotta Solar, Inc. | Thermally regulated modular energy storage device and methods |
| US10424821B2 (en) | 2017-04-03 | 2019-09-24 | Yotta Solar, Inc. | Thermally regulated modular energy storage device and methods |
| JP2020520547A (ja) * | 2017-04-03 | 2020-07-09 | ヨッタ ソーラー インク.Yotta Solar, Inc. | 熱調節型モジュール式エネルギー貯蔵装置および方法 |
| JP7160895B2 (ja) | 2017-04-03 | 2022-10-25 | ヨッタ ソーラー インク. | 熱調節型モジュール式エネルギー貯蔵装置および方法 |
| CN114383370A (zh) * | 2020-10-20 | 2022-04-22 | 惠而浦公司 | 用于真空绝缘结构的绝缘材料及其形成方法 |
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