CN211210360U - Heat-insulation wave-absorbing material - Google Patents
Heat-insulation wave-absorbing material Download PDFInfo
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- CN211210360U CN211210360U CN201920787404.8U CN201920787404U CN211210360U CN 211210360 U CN211210360 U CN 211210360U CN 201920787404 U CN201920787404 U CN 201920787404U CN 211210360 U CN211210360 U CN 211210360U
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Abstract
The utility model discloses a thermal-insulated material of inhaling belongs to electromagnetic wave absorbent's technical field, including wave-absorbing layer and the insulating layer of compound setting in proper order, wave-absorbing layer is wave-absorbing agent layer, wave-absorbing agent layer is the metal powder layer that bonds together, the insulating layer is aerogel layer, aerogel layer is silica aerogel layer. The utility model provides a can play thermal-insulated material of inhaling of thermal-insulated effect to the equipment that generates heat.
Description
Technical Field
The utility model belongs to the technical field of the technique of electromagnetic wave absorbing material and specifically relates to a thermal-insulated material that absorbs waves is related to.
Background
With the development of the times and the development of science and technology, the popularization of electronic and information devices, the problems of electromagnetic interference and electromagnetic compatibility caused by electromagnetic radiation become more and more serious, which mainly reflect in the aspects of interfering the normal operation of electronic instruments and devices, leaking important information, harming human health and the like, so that the research of electromagnetic wave absorbing materials or electromagnetic wave shielding materials is very necessary, and the electromagnetic wave absorbing materials or the electromagnetic wave shielding materials are important research subjects in the technical field of military stealth.
The working mechanism of the wave-absorbing material is that the material realizes effective absorption of electromagnetic waves, and the wave-absorbing agent is used as a main body to convert the electromagnetic waves into heat energy in modes of insulation loss, magnetic loss, impedance loss and the like so as to achieve the effect of reducing electromagnetic radiation. The wave absorbing agent in the wave absorbing material can be divided into carbon series wave absorbing materials, iron series wave absorbing materials, ceramic series wave absorbing materials and other types of wave absorbing materials according to different elements, wherein the metal iron alloy micro powder wave absorbing agent in the iron series wave absorbing materials is a more researched and more mature wave absorbing material. The wave absorbing agent mainly absorbs and attenuates electromagnetic waves in modes of magnetic hysteresis loss, eddy current loss and the like, comprises metal iron powder, iron alloy powder, carbonyl iron powder and other materials, has the advantages of high microwave permeability, good temperature stability and the like, and has the problems of high dielectric constant, poor oxidation resistance, low resistivity, poor acid and alkali resistance, high density and the like. The silica aerogel is a light porous nano material and has the characteristics of low thermal conductivity, extremely large specific surface area, incombustibility, excellent electrical loss capacity and the like. Therefore, the ferromagnetic material and the silicon dioxide aerogel can be compounded, and the advantages of the ferromagnetic material and the silicon dioxide aerogel can be comprehensively utilized.
Chinese patent publication No. CN208148679U discloses an electromagnetic shielding film with high absorption performance, which has a multilayer structure and comprises an insulating bonding layer and a chopped carbon fiber mat wave-absorbing layer, wherein any two adjacent layers of chopped carbon fiber mat wave-absorbing layers are bonded into a whole through the insulating bonding layer, and the outermost layer of chopped carbon fiber mat wave-absorbing layer adopts the insulating bonding layer as a protective film. The chopped carbon fiber felt wave-absorbing layer has lower shielding performance and excellent wave-absorbing performance. And (3) superposing the multiple layers of chopped carbon fiber felt wave-absorbing layers and the insulating bonding layer and then carrying out hot press molding.
The film in the technical scheme can play a role in shielding electromagnetic waves, but when the film is used for equipment or a device which needs the electromagnetic shielding film actually, a lot of equipment can generate heat, and the film is easy to dissipate heat to influence the normal operation of other equipment when in use.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a thermal-insulated material of inhaling can play thermal-insulated effect to the equipment that generates heat.
The above technical purpose of the present invention can be achieved by the following technical solutions: a heat-insulation wave-absorbing material comprises a wave-absorbing layer and a heat-insulating layer which are sequentially compounded, wherein the wave-absorbing layer is a wave-absorbing agent layer, the wave-absorbing agent layer is a metal powder layer which is bonded together, and the heat-insulating layer is an aerogel layer.
Through adopting above-mentioned technical scheme, the wave absorbent layer can play the effect of shielding the electromagnetic wave to play the effect of protection to relevant equipment, rely on aerogel layer to play the effect of keeping apart to equipment simultaneously, then when equipment produced the heat, utilize aerogel layer to completely cut off the heat, make the heat can not conduct to outmost, and then promote the experience in the use, also avoid the heat loss to the outside and influence other operations of establishing nothing.
The utility model discloses further set up to: the aerogel layer is a silica aerogel layer.
By adopting the technical scheme, the thin nano network structure of the silica aerogel effectively limits the propagation of local thermal excitation, and the solid thermal conductivity of the silica aerogel is 2 to 3 orders of magnitude lower than that of a corresponding glass state material, so that a better heat insulation effect can be achieved.
The utility model discloses further set up to: the insulating layer comprises a carrier layer embedded with aerogel particles.
Through adopting above-mentioned technical scheme, utilize the carrier to make the aerogel granule can intensive distribution to reach better adiabatic effect.
The utility model discloses further set up to: the aerogel particle layer comprises aerogel particles which are densely distributed, and a glue layer is coated outside the aerogel particles.
Through adopting above-mentioned technical scheme, make aerogel granule can densely distributed also can reach better bonding effect with the carrier layer, keep the stability of aerogel granule to reach better thermal-insulated effect.
The utility model discloses further set up to: protective layers are covered on two sides of the carrier layer.
Through adopting above-mentioned technical scheme, because the aerogel granule in the aerogel granule layer takes place to drop easily when the atress, then utilize the protective layer can play the protection effect to the aerogel granule layer, avoid taking place dropping of aerogel granule.
The utility model discloses further set up to: the carrier layer is a wave absorbing agent layer, the wave absorbing agent layer is a metal powder layer which is bonded together, metal powder in the metal powder layer is bonded through a high polymer material, and the metal powder layer comprises but is not limited to nickel-zinc-iron alloy, nickel-copper-iron alloy, zinc-chromium-iron alloy, manganese-zinc-iron alloy, niobium-zinc-iron alloy, iron-silicon-aluminum alloy, nickel-chromium-iron alloy, niobium-zinc-iron alloy, iron-nickel alloy, iron-aluminum alloy, iron-cobalt alloy, iron-chromium alloy, iron-silicon-nickel alloy, iron-silicon-aluminum-nickel alloy, magnesium-manganese-iron alloy, cobalt-nickel alloy, lithium-manganese alloy or lithium-cadmium-iron alloy.
By adopting the technical scheme, the heat insulation layer can also have the effect of shielding electromagnetic waves, so that the heat insulation layer can also shield the electromagnetic waves while having the heat insulation effect, and the ferromagnetic alloy layer can play a role of shielding the electromagnetic waves, thereby having the effect of protecting related equipment.
The utility model discloses further set up to: the edge of the protective layer far away from the wave-absorbing layer is wrapped at the periphery of the aerogel layer and compounded on the wave-absorbing layer.
Through adopting above-mentioned technical scheme, utilize the protective layer can all play the cladding protection effect to aerogel layer's periphery to can further avoid the aerogel granule to take place to drop.
To sum up, the utility model discloses following beneficial effect has: utilize the insulating layer can play good thermal-insulated effect in the use, avoid the heat to outside influence, also can rely on the carrier to play better electromagnetic shield effect simultaneously.
Drawings
Fig. 1 is a schematic cross-sectional view of the present embodiment.
Reference numerals: 1. a wave-absorbing layer; 2. a thermal insulation layer; 21. a carrier layer; 221. aerogel particles; 3. and a protective layer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A thermal-insulated material of inhaling, refer to fig. 1, including wave-absorbing layer 1 and insulating layer 2 that compound set up from top to bottom in proper order, utilize wave-absorbing layer 1 can play the effect of shielding the electromagnetic wave, utilize insulating layer 2 to play isolated effect to the heat that produces simultaneously.
The wave absorbing layer 1 is a wave absorbing agent layer, the wave absorbing agent layer is a bonded metal powder layer, metal powder in the metal powder layer is bonded through a high polymer material, the metal powder layer comprises one of a nickel-zinc-iron alloy, a nickel-copper-iron alloy, a zinc-chromium-iron alloy, a manganese-zinc-iron alloy, a niobium-zinc-iron alloy, an iron-silicon-aluminum alloy, a nickel-chromium-iron alloy, a niobium-zinc-iron alloy, an iron-nickel alloy, an iron-aluminum alloy, an iron-cobalt alloy, an iron-chromium alloy, an iron-silicon-nickel alloy, an iron-silicon-aluminum-nickel alloy, a magnesium-manganese-iron alloy, a cobalt-nickel alloy, a lithium-manganese alloy or a lithium-cadmium-iron alloy, and the iron alloy. The high molecular material is selected from phenolic resin, urea resin, epoxy resin, acrylic resin, polyvinyl butyral resin, vinyl acetate and copolymer thereof, organic silicon glue resin, polyurethane resin, rubber resin or polymer thereof.
The composite insulating layer 2 that has through the mode of hot pressing at the side surface of absorbing layer 1, insulating layer 2 includes carrier layer 21, carrier layer 21 is the same also wave absorbent layer with absorbing layer 1, and select the material the same with wave absorbent layer, and in order to reach better thermal-insulated effect, it has densely distributed aerogel granule 221 to inlay in carrier layer 21, aerogel granule 221 is silica aerogel, the outside coating at aerogel granule 221 has sticky glue film (not marking in the figure), thereby make aerogel granule 221 can bond inside carrier layer 21, and make also can bond each other between the adjacent aerogel granule 221, promote the inside coverage uniformity of aerogel granule 221 at carrier layer 21, also can cover more comprehensively.
In order to promote aerogel granular layer 22's stability, it has one deck protective layer 3 all to bond on one side of aerogel layer deviating from carrier layer 21, and PET film is chooseed for use to protective layer 3, and protective layer 3 bonds in aerogel granule 221 surface through glue, and then plays good protection effect to aerogel granular layer 22, avoids aerogel granule 221 to take place to drop when the atress. In order to achieve a better protection effect, the edge of the protection layer 3 far away from one side of the wave-absorbing layer 1 extends outwards for a certain distance, so that the protection layer is turned over to be coated on the periphery of the aerogel layer and compounded on the surface of the wave-absorbing layer 1, a good protection effect can be achieved on the periphery of the aerogel layer, and the problem that the aerogel layer falls off powder is avoided.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (7)
1. A heat insulation wave absorbing material is characterized in that: the wave absorbing layer is characterized by comprising a wave absorbing layer (1) and a heat insulating layer (2) which are sequentially compounded, wherein the wave absorbing layer (1) is a wave absorbing agent layer, the wave absorbing agent layer is a metal powder layer which is bonded together, and the heat insulating layer (2) is an aerogel layer.
2. The heat-insulating wave-absorbing material as claimed in claim 1, wherein: the aerogel layer is a silica aerogel layer.
3. The heat-insulating wave-absorbing material as claimed in claim 1, wherein: the thermal insulation layer (2) comprises a carrier layer (21) embedded with aerogel particles (221).
4. A heat-insulating wave-absorbing material according to claim 3, which comprises: the aerogel particle layer (22) comprises aerogel particles (221) which are densely arranged, and a glue layer is coated outside the aerogel particles (221).
5. A heat-insulating wave-absorbing material according to claim 3, which comprises: both sides of the carrier layer (21) are covered with protective layers (3).
6. A heat-insulating wave-absorbing material according to claim 3, which comprises: the carrier layer (21) is a wave absorbing agent layer, the wave absorbing agent layer is a metal powder layer which is bonded together, metal powder in the metal powder layer is bonded through a high polymer material, and the metal powder layer comprises but is not limited to one of nickel-zinc-iron alloy, nickel-copper-iron alloy, zinc-chromium-iron alloy, manganese-zinc-iron alloy, niobium-zinc-iron alloy, iron-silicon-aluminum alloy, nickel-chromium-iron alloy, niobium-zinc-iron alloy, iron-nickel alloy, iron-aluminum alloy, iron-cobalt alloy, iron-chromium alloy, iron-silicon-nickel alloy, iron-silicon-aluminum-nickel alloy, magnesium-manganese-iron alloy, cobalt-nickel alloy, lithium-manganese alloy or lithium-cadmium-iron alloy.
7. The heat-insulating wave-absorbing material as claimed in claim 5, wherein: the edge of the protective layer (3) far away from the wave-absorbing layer (1) is coated on the periphery of the aerogel layer and compounded on the wave-absorbing layer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201920787404.8U CN211210360U (en) | 2019-05-29 | 2019-05-29 | Heat-insulation wave-absorbing material |
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| CN201920787404.8U CN211210360U (en) | 2019-05-29 | 2019-05-29 | Heat-insulation wave-absorbing material |
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| CN211210360U true CN211210360U (en) | 2020-08-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113773675A (en) * | 2021-09-13 | 2021-12-10 | 中国科学技术大学 | Aerogel composite thermal insulation layer and preparation method and application thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113773675A (en) * | 2021-09-13 | 2021-12-10 | 中国科学技术大学 | Aerogel composite thermal insulation layer and preparation method and application thereof |
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| GR01 | Patent grant | ||
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Effective date of registration: 20211229 Address after: 213222 No. 139, Huaye Road, Jintan District, Changzhou City, Jiangsu Province Patentee after: Changzhou yuweili Material Technology Co.,Ltd. Address before: 314006 workshop, No.5, Zhonghuan South Road North, Daqiao Town, Nanhu District, Jiaxing City, Zhejiang Province Patentee before: ZHEJIANG KANGTING ELECTRONIC TECHNOLOGY CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213222 No. 139, Huaye Road, Jintan District, Changzhou City, Jiangsu Province Patentee after: Yuqi Material Technology Changzhou Co.,Ltd. Address before: 213222 No. 139, Huaye Road, Jintan District, Changzhou City, Jiangsu Province Patentee before: Changzhou yuweili Material Technology Co.,Ltd. |