KR20180097991A - Lightweight particles with carbon nucleus absorbing electromagnetic wave and radiating heat - Google Patents
Lightweight particles with carbon nucleus absorbing electromagnetic wave and radiating heat Download PDFInfo
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- KR20180097991A KR20180097991A KR1020170024878A KR20170024878A KR20180097991A KR 20180097991 A KR20180097991 A KR 20180097991A KR 1020170024878 A KR1020170024878 A KR 1020170024878A KR 20170024878 A KR20170024878 A KR 20170024878A KR 20180097991 A KR20180097991 A KR 20180097991A
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- electromagnetic wave
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/041—Carbon nanotubes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/042—Graphene or derivatives, e.g. graphene oxides
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/02—Ingredients treated with inorganic substances
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/44—Carbon
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
- H05K7/20436—Inner thermal coupling elements in heat dissipating housings, e.g. protrusions or depressions integrally formed in the housing
- H05K7/20445—Inner thermal coupling elements in heat dissipating housings, e.g. protrusions or depressions integrally formed in the housing the coupling element being an additional piece, e.g. thermal standoff
- H05K7/20472—Sheet interfaces
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/01—Magnetic additives
Abstract
The present invention relates to a lightweight particle having a function of absorbing and radiating electromagnetic waves, a masterbatch including the same, and a sheet.
Description
The present invention relates to a lightweight particle having a function of absorbing and radiating electromagnetic waves, a masterbatch including the same, and a sheet.
With the high integration and high performance of electronic devices and the development of LED lighting, more heat is generated in the device. Such discharge heat shortens the function of the device, the malfunction of the device, and the life of the device.
On the other hand, a heat-radiating pad is a structure that acts as a thermal interface material (TIM) which is positioned between a heat source and an heat sink of an electronic device and transfers heat generated from the heat source to a heat sink.
Recent technology trends require such heat-dissipating pads to have not only electric insulation but also electromagnetic shielding / absorption functions, and research on sheets or masterbatches of synthetic resin materials including particles having these functions is actively conducted.
Korean Patent Laid-Open Publication No. 2014-0066812 (published on Apr. 26, 2014) discloses a material in which a ceramic is coated on a plate-like carbon body, but in this case, it is difficult to exhibit an electromagnetic wave shielding / absorbing function.
Japanese Unexamined Patent Application Publication No. 2003-347787 discloses a technique of coating a magnetic powder with an electrically insulating inorganic particle. In this case, the weight of the particle increases the weight of the product more than necessary There is a problem.
Therefore, there is a demand in the industry for new charged particles having electrical properties, heat dissipation properties, electromagnetic wave shielding / absorption function, and light weight properties.
The lightweight particles having an electromagnetic wave absorbing function and a heat radiation function of the present invention have been developed in order to solve the above-mentioned problems. The lightweight particles having a structure of carbon core-ceramic angle-magnetic angle or carbon core- The purpose is to provide.
It is a further object of the present invention to provide a masterbatch comprising the lightweight particles.
It is still another object of the present invention to provide a sheet containing the lightweight particles.
In order to achieve the above object, the lightweight particle having the electromagnetic wave-absorbing function and the heat-
(A) Carbon nuclei, and
(B) Any one of the following (B-1) or (B-2)
(B-1) A shell formed by coating the surface of the core and a magnetic angle formed by coating the surface of the core,
(B-2) A magnetic angle formed by coating the surface of the nucleus, and a ceramic angle formed by coating the surface of the magnetic angle.
The light weight particles having the electromagnetic wave absorbing function and the heat radiation function of the present invention have a ratio of the largest diameter / the shortest diameter of the light weight particles of 1 to 100, preferably 1 to 90, more preferably 1 to 75, and still more preferably 1 To 50, more preferably from 1 to 20 carbon atoms.
In addition, the lightweight particles may be spherical, plate-shaped, needle-shaped, and mixtures thereof.
Further, the carbon nuclei may be graphite, carbon black, CNT, graphene, carbon fiber, or a mixture thereof.
The ceramic angle may be selected from the group consisting of magnesium oxide (MgO), silicon nitride (Si 3 N 4 ), silicon carbide (SiC), tin oxide (SnO 2 ), titanium oxide (TiO 2 ), boron nitride (BN) ), Aluminum oxide (Al 2 O 3 ), zinc oxide (ZnO), zirconium oxide (ZrO 2 ), yttrium oxide (Y 2 O 3 ), silica (SiO 2 ) and mixtures thereof.
The magnetic angle may be selected from the group consisting of iron, chromium, aluminum, silicon, copper, zinc, nickel, manganese, molybdenum, strontium, platinum, cobalt, niobium, alloys thereof, .
In addition, the magnetic angle may be selected from the group consisting of permalloy, molypermalloy, sendust, ferrite, and mixtures thereof.
The average particle diameter of the lightweight particles is preferably 100 nm to 3 mm, more preferably 200 nm to 2 mm, still more preferably 500 nm to 1 mm, still more preferably 1 to 500 μm, 100 m, and even more preferably 4 to 60 m.
In addition, the average thickness of the ceramic angle may be 10 nm to 100 탆, preferably 20 nm to 90 탆, more preferably 50 nm to 70 탆, and still more preferably 0.1 to 50 탆.
In addition, the average thickness of the magnetic angle may be 10 nm to 100 mu m, preferably 20 nm to 90 mu m, more preferably 50 nm to 70 mu m, further preferably 0.1 to 50 mu m.
The average specific gravity of the lightweight particles may be 1.0 to 2.8, preferably 1.2 to 2.5, more preferably 1.5 to 2.0.
The master batch of the present invention, on the other hand,
Polyolefin, polyamide, acrylonitrile butadiene styrene copolymer, polycarbonate, polyester including polybutylene terephthalate, polyphenylene sulfide, thermoplastic elastomer resin, silicone resin, epoxy resin, acrylic resin, mixture thereof and copolymer thereof A polymer selected from the group consisting of
And lightweight particles having the electromagnetic wave absorption function and the heat radiation function.
On the other hand,
Polyolefin, polyamide, acrylonitrile butadiene styrene copolymer, polycarbonate, polyester including polybutylene terephthalate, polyphenylene sulfide, thermoplastic elastomer resin, silicone resin, epoxy resin, acrylic resin, mixture thereof and copolymer thereof A polymer selected from the group consisting of
And lightweight particles having the electromagnetic wave absorption function and the heat radiation function.
The lightweight particles having an electromagnetic wave absorption function and a heat radiation function according to the present invention have electrical insulation due to the outermost magnetic angle or ceramic angle. At the same time, it has an electromagnetic wave absorbing function due to the magnetic angle, and achieves light weight as well as heat dissipation due to the carbon nucleus, which is advantageous in meeting all the requirements in the industry.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of an embodiment of a lightweight particle of the present invention having a carbon core-ceramic angle-magnetic angle structure. FIG.
2 is a cross-sectional view showing one embodiment of lightweight particles of the present invention having a carbon core-magnetic angle-ceramic angle structure.
Hereinafter, preferred embodiments of the present invention will be described in detail. In the following description, numerous specific details, such as specific elements, are set forth in order to provide a thorough understanding of the present invention, and it is to be understood that the present invention may be practiced without these specific details, It will be obvious to those who have knowledge of. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.
The present invention provides a lightweight particle characterized in that a magnetic core and a coating angle of carbon nuclei are essentially included for the purpose of enhancing electromagnetic wave absorption and heat radiation pad function.
The present invention also relates to a resin composition comprising a polyolefin, a polyamide, an acrylonitrile butadiene styrene copolymer, a polycarbonate, a polyester including polybutylene terephthalate, polyphenylene sulfide, a thermoplastic elastomer resin, a silicone resin, Mixtures and copolymers thereof, and
And a light weight particle having an electromagnetic wave absorbing function and a heat radiation function.
In order to achieve the above object, the lightweight particle having the electromagnetic wave-absorbing function and the heat-
(A) Carbon nuclei, and
(B) Any one of the following (B-1) or (B-2)
(B-1) A shell formed by coating the surface of the core and a magnetic angle formed by coating the surface of the core,
(B-2) A magnetic angle formed by coating the surface of the nucleus, and a ceramic angle formed by coating the surface of the magnetic angle.
The light weight particles having the electromagnetic wave absorbing function and the heat radiation function of the present invention have a ratio of the largest diameter / the shortest diameter of the light weight particles of 1 to 100, preferably 1 to 90, more preferably 1 to 75, and still more preferably 1 To 50, more preferably from 1 to 20 carbon atoms.
The lightweight particles are not limited in shape. For example, it may be spherical or plate-like, needle-shaped, and mixtures thereof.
In addition, the carbon nuclei are nuclei having the magnetic angle and the ceramic angle of the present invention, and there is no limitation in the properties when they can function. Carbon nuclei can be graphite, carbon black, CNT, graphene, carbon fibers and mixtures thereof, and especially light carbon is the carbon core.
The ceramic angle included in the carbon nucleus is preferably magnesium oxide (MgO), silicon nitride (Si 3 N 4 ), silicon carbide (SiC), tin oxide (SnO 2 ), titanium oxide (TiO 2 ) boron (BN), aluminum nitride (AlN), aluminum oxide (Al 2 O 3), zinc oxide (ZnO), zirconium oxide (ZrO 2), yttrium oxide (Y 2 O 3), silica (SiO 2) and mixtures thereof ≪ / RTI >
The magnetic angle included in the carbon nucleus is preferably at least one of iron, chromium, aluminum, silicon, copper, zinc, nickel, manganese, molybdenum, strontium, platinum, cobalt, niobium, And mixtures thereof.
In addition, the magnetic angle may be selected from the group consisting of permalloy, molypermalloy, sendust, ferrite, and mixtures thereof.
The average particle diameter of the lightweight particles is preferably 100 nm to 3 mm, more preferably 200 nm to 2 mm, still more preferably 500 nm to 1 mm, still more preferably 1 to 500 μm, 100 m, and even more preferably 4 to 60 m.
In addition, the average thickness of the ceramic angle may be 10 nm to 100 탆, preferably 20 nm to 90 탆, more preferably 50 nm to 70 탆, and still more preferably 0.1 to 50 탆.
In addition, the average thickness of the magnetic angle may be 10 nm to 100 mu m, preferably 20 nm to 90 mu m, more preferably 50 nm to 70 mu m, further preferably 0.1 to 50 mu m.
The average specific gravity of the lightweight particles may be 1.0 to 2.8, preferably 1.2 to 2.5, more preferably 1.5 to 2.0.
The master batch of the present invention, on the other hand,
Polyolefin, polyamide, acrylonitrile butadiene styrene copolymer, polycarbonate, polyester including polybutylene terephthalate, polyphenylene sulfide, thermoplastic elastomer resin, silicone resin, epoxy resin, acrylic resin, mixture thereof and copolymer thereof A polymer selected from the group consisting of
And lightweight particles having the electromagnetic wave absorption function and the heat radiation function.
On the other hand,
Polyolefin, polyamide, acrylonitrile butadiene styrene copolymer, polycarbonate, polyester including polybutylene terephthalate, polyphenylene sulfide, thermoplastic elastomer resin, silicone resin, epoxy resin, acrylic resin, mixture thereof and copolymer thereof A polymer selected from the group consisting of
And lightweight particles having the electromagnetic wave absorption function and the heat radiation function.
In the method for producing lightweight particles of the present invention, a functional group containing a hydroxyl group or a carboxyl group, or a coupling agent selected from a silane coupling agent, a zirconia coupling agent and a titanate coupling agent, is formed on the carbon nuclei of the above-mentioned material to form a ceramic coating layer .
The silane coupling agent may be, for example, aminoethylaminopropyltriethoxysilane, aminopropyltrimethoxysilane, aminopropyltriethoxysilane, aminoethylaminopropylmethyldimethoxysilane, phenyltriethoxysilane, tetraethyl But is not limited to, any one or two or more selected from orthosilicate, diethoxydimethylsilane, phenylaminopropyltrimethoxysilane, and aminoethylaminopropyltrimethoxysilane.
The titanate coupling agent may be selected from, for example, isopropyltridodioctyl phosphate titanate, isopropyl trioroyl titanate, isopropyl tritiated tallowate, isopropyl tritodecyl benzene sulfonate tie, Tetradecyldodecylphosphate titanate, isopropyl tributylphosphate tributylphosphate tributylphosphate tributylphosphate tributylphosphate tributylphosphate tributylphosphate tributylphosphate tributylphosphate tributylphosphate tributylphosphate tributylphosphate tributylphosphate tributylphosphate
The zirconia coupling agent may be, for example, zirconium IV, 2,2-bis-2-propenoloretomethyl butenolate tris dioctyl pyrophosphate-o, zirconium 1,1 bis-2- Aminophenolate, and phenol retomethylbutanoletotris 2-aminophenylate. However, the present invention is not limited thereto.
The ceramic, which is in the form of a ceramic precursor, is coated on the carbon nucleus surface via the functional group or the coupling agent to constitute a ceramic angle.
In the method of forming the magnetic angle in the ceramic angle, an anionic polymer or the like is sufficiently adsorbed on each surface of the ceramics, then the iron chloride which is a magnetic precursor is adsorbed, and the iron chloride is oxidized to form a magnetic angle.
A method of forming a ceramic angle after first forming a magnetic angle is also formed by treating a carbon nucleus with a functional group or a coupling agent, forming a magnetic angle, and then adsorbing a ceramic precursor such as a silane compound.
While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Of course it is possible. Accordingly, the scope of the present invention should not be construed as being limited to the above-described embodiments, but should be determined by equivalents to the appended claims, as well as the following claims.
10: carbon nuclei
20: Ceramic angle
30: Magnetic angle
Claims (13)
(B) one of the following (B-1) or (B-2)
(B-1) a ceramic angle obtained by coating the surface of the nucleus and a magnetic angle obtained by coating the surface of the ceramic angle, or
(B-2) a magnetic angle obtained by coating the surface of the nucleus and a ceramic angle obtained by coating the surface of the magnetic angle
A lightweight particle having an electromagnetic wave absorbing function and a heat radiation function.
Lightweight particle having an electromagnetic wave absorbing function and a heat radiation function, wherein the light weight particle has a largest / smallest value of 1 to 100.
The lightweight particle has an electromagnetic wave absorbing function and a heat dissipating function, wherein the lightweight particle is spherical, plate-like, needle-like, or a mixture thereof.
Wherein the carbon nucleus is graphite, carbon black, CNT, graphene, carbon fiber, or a mixture thereof, and the lightweight particle having an electromagnetic wave absorbing function and a heat radiation function.
The ceramic angle may be selected from the group consisting of MgO, Si 3 N 4 , SiC, SnO 2 , TiO 2 , BN, AlN, Characterized in that it is selected from the group consisting of aluminum oxide (Al 2 O 3 ), zinc oxide (ZnO), zirconium oxide (ZrO 2 ), yttrium oxide (Y 2 O 3 ), silica (SiO 2 ) Lightweight particles with absorption and dissipation functions.
Wherein the magnetic angle is selected from the group consisting of iron, chromium, aluminum, silicon, copper, zinc, nickel, manganese, molybdenum, strontium, platinum, cobalt, niobium, Lightweight particle with electromagnetic wave absorption function and heat dissipation function.
Wherein the magnetic angle is selected from the group consisting of permalloy, molypermalloy, sendust, ferrite, and mixtures thereof. The lightweight particle having an electromagnetic wave absorbing function and a heat dissipating function is characterized in that the magnetic angle is selected from the group consisting of permalloy, molypermalloy, sendust, ferrite and mixtures thereof.
The lightweight particle having an electromagnetic wave absorbing function and a heat radiation function, wherein the light particle has an average particle diameter of 100 nm to 3 mm.
Wherein the average thickness of the ceramic angle is 10 nm to 100 占 퐉, and the lightweight particle having an electromagnetic wave absorbing function and a heat radiation function.
Wherein the average thickness of the magnetic angles is 10 nm to 100 占 퐉.
And light weight particles having an electromagnetic wave absorbing function and a heat radiation function, wherein the light weight particles have an average specific gravity of 1.0 to 2.8.
A masterbatch comprising lightweight particles having an electromagnetic wave absorbing function and a heat radiation function according to any one of claims 1 to 11.
A sheet comprising lightweight particles having an electromagnetic wave absorbing function and a heat radiation function according to any one of claims 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020170024878A KR20180097991A (en) | 2017-02-24 | 2017-02-24 | Lightweight particles with carbon nucleus absorbing electromagnetic wave and radiating heat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020170024878A KR20180097991A (en) | 2017-02-24 | 2017-02-24 | Lightweight particles with carbon nucleus absorbing electromagnetic wave and radiating heat |
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| Publication Number | Publication Date |
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| KR20180097991A true KR20180097991A (en) | 2018-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020170024878A KR20180097991A (en) | 2017-02-24 | 2017-02-24 | Lightweight particles with carbon nucleus absorbing electromagnetic wave and radiating heat |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210037094A (en) | 2019-09-27 | 2021-04-06 | (주)제이비에이치 | Heat radiating particles and method for manufacturing thereof |
| KR20210037095A (en) | 2019-09-27 | 2021-04-06 | (주)제이비에이치 | Heat radiating particles and method for manufacturing thereof |
| CN114702318A (en) * | 2022-04-18 | 2022-07-05 | 西北工业大学 | Ceramic wave-absorbing metamaterial and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003347787A (en) | 2002-05-23 | 2003-12-05 | Shin Etsu Chem Co Ltd | Electromagnetic wave absorbing composition |
| KR20140066812A (en) | 2012-11-22 | 2014-06-02 | 인하대학교 산학협력단 | Preparation method of ceramic-plate carbon composites using the microwave |
-
2017
- 2017-02-24 KR KR1020170024878A patent/KR20180097991A/en unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003347787A (en) | 2002-05-23 | 2003-12-05 | Shin Etsu Chem Co Ltd | Electromagnetic wave absorbing composition |
| KR20140066812A (en) | 2012-11-22 | 2014-06-02 | 인하대학교 산학협력단 | Preparation method of ceramic-plate carbon composites using the microwave |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210037094A (en) | 2019-09-27 | 2021-04-06 | (주)제이비에이치 | Heat radiating particles and method for manufacturing thereof |
| KR20210037095A (en) | 2019-09-27 | 2021-04-06 | (주)제이비에이치 | Heat radiating particles and method for manufacturing thereof |
| CN114702318A (en) * | 2022-04-18 | 2022-07-05 | 西北工业大学 | Ceramic wave-absorbing metamaterial and preparation method and application thereof |
| CN114702318B (en) * | 2022-04-18 | 2023-02-28 | 西北工业大学 | Ceramic wave-absorbing metamaterial and preparation method and application thereof |
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