JP6737979B1 - 電磁波吸収性熱伝導性組成物及びそのシート - Google Patents
電磁波吸収性熱伝導性組成物及びそのシート Download PDFInfo
- Publication number
- JP6737979B1 JP6737979B1 JP2020529663A JP2020529663A JP6737979B1 JP 6737979 B1 JP6737979 B1 JP 6737979B1 JP 2020529663 A JP2020529663 A JP 2020529663A JP 2020529663 A JP2020529663 A JP 2020529663A JP 6737979 B1 JP6737979 B1 JP 6737979B1
- Authority
- JP
- Japan
- Prior art keywords
- electromagnetic wave
- thermally conductive
- wave absorbing
- conductive composition
- sheet
- 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.)
- Active
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 43
- 239000002245 particle Substances 0.000 claims abstract description 43
- 229910052751 metal Inorganic materials 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 22
- 229920005989 resin Polymers 0.000 claims abstract description 22
- 239000011347 resin Substances 0.000 claims abstract description 22
- 230000035699 permeability Effects 0.000 claims abstract description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000011159 matrix material Substances 0.000 claims abstract description 16
- 239000006249 magnetic particle Substances 0.000 claims abstract description 9
- 229920002050 silicone resin Polymers 0.000 claims description 13
- -1 silane compound Chemical class 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 10
- 229910000077 silane Inorganic materials 0.000 claims description 7
- 239000000696 magnetic material Substances 0.000 claims description 5
- 229920001187 thermosetting polymer Polymers 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 239000010954 inorganic particle Substances 0.000 claims description 2
- 150000001247 metal acetylides Chemical class 0.000 claims description 2
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims description 2
- 150000004767 nitrides Chemical class 0.000 claims description 2
- 238000001723 curing Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000004891 communication Methods 0.000 description 5
- 125000004432 carbon atom Chemical group C* 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 239000003431 cross linking reagent Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- 150000004756 silanes Chemical class 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000011231 conductive filler Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 125000000962 organic group Chemical group 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000013006 addition curing Methods 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- BAAAEEDPKUHLID-UHFFFAOYSA-N decyl(triethoxy)silane Chemical compound CCCCCCCCCC[Si](OCC)(OCC)OCC BAAAEEDPKUHLID-UHFFFAOYSA-N 0.000 description 1
- KQAHMVLQCSALSX-UHFFFAOYSA-N decyl(trimethoxy)silane Chemical compound CCCCCCCCCC[Si](OC)(OC)OC KQAHMVLQCSALSX-UHFFFAOYSA-N 0.000 description 1
- YGUFXEJWPRRAEK-UHFFFAOYSA-N dodecyl(triethoxy)silane Chemical compound CCCCCCCCCCCC[Si](OCC)(OCC)OCC YGUFXEJWPRRAEK-UHFFFAOYSA-N 0.000 description 1
- SCPWMSBAGXEGPW-UHFFFAOYSA-N dodecyl(trimethoxy)silane Chemical compound CCCCCCCCCCCC[Si](OC)(OC)OC SCPWMSBAGXEGPW-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- RSKGMYDENCAJEN-UHFFFAOYSA-N hexadecyl(trimethoxy)silane Chemical compound CCCCCCCCCCCCCCCC[Si](OC)(OC)OC RSKGMYDENCAJEN-UHFFFAOYSA-N 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 229910001004 magnetic alloy Inorganic materials 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- ARYZCSRUUPFYMY-UHFFFAOYSA-N methoxysilane Chemical compound CO[SiH3] ARYZCSRUUPFYMY-UHFFFAOYSA-N 0.000 description 1
- SLYCYWCVSGPDFR-UHFFFAOYSA-N octadecyltrimethoxysilane Chemical compound CCCCCCCCCCCCCCCCCC[Si](OC)(OC)OC SLYCYWCVSGPDFR-UHFFFAOYSA-N 0.000 description 1
- MSRJTTSHWYDFIU-UHFFFAOYSA-N octyltriethoxysilane Chemical compound CCCCCCCC[Si](OCC)(OCC)OCC MSRJTTSHWYDFIU-UHFFFAOYSA-N 0.000 description 1
- 229960003493 octyltriethoxysilane Drugs 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000012756 surface treatment agent Substances 0.000 description 1
- OYGYKEULCAINCL-UHFFFAOYSA-N triethoxy(hexadecyl)silane Chemical compound CCCCCCCCCCCCCCCC[Si](OCC)(OCC)OCC OYGYKEULCAINCL-UHFFFAOYSA-N 0.000 description 1
- WUMSTCDLAYQDNO-UHFFFAOYSA-N triethoxy(hexyl)silane Chemical compound CCCCCC[Si](OCC)(OCC)OCC WUMSTCDLAYQDNO-UHFFFAOYSA-N 0.000 description 1
- FZMJEGJVKFTGMU-UHFFFAOYSA-N triethoxy(octadecyl)silane Chemical compound CCCCCCCCCCCCCCCCCC[Si](OCC)(OCC)OCC FZMJEGJVKFTGMU-UHFFFAOYSA-N 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/14—Solid materials, e.g. powdery or granular
-
- 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
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- 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
- C08K3/08—Metals
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
-
- 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
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
- H01Q17/004—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems using non-directional dissipative particles, e.g. ferrite powders
-
- 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
-
- 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
- H05K9/0083—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising electro-conductive non-fibrous particles embedded in an electrically insulating supporting structure, e.g. powder, flakes, whiskers
-
- 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
- C08J2383/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2383/04—Polysiloxanes
-
- 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
- C08K2201/001—Conductive additives
-
- 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
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Thermal Sciences (AREA)
- Electromagnetism (AREA)
- Combustion & Propulsion (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Compounds Of Iron (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
Description
本発明は、前記従来の問題を解決するため、18〜26.5GHzの周波数帯における比透磁率虚数部(μ")の値が大きく、前記周波領域の電磁波ノイズを効率的に吸収でき、かつ熱伝導率も高い電磁波吸収性熱伝導性組成物及びそのシートを提供する。
電磁波吸収性熱伝導性組成物シートの熱伝導率は、図1A, B及び前記のとおり、ホットディスク(ISO/CD 22007-2準拠)により測定した。熱伝導率は以下の式(数1)で算出した。
比透磁率虚数部(μ”)の測定方法は、特開2011−187671号公報、特許第4512919号公報等で知られており、本発明でもこれを援用する。比透磁率虚数部(μ”)は、次のようにして測定した。後述の実施例、比較例で得たシートを10.67mm×4.32mmの長方形にカットした試料を、市販の導波管サンプルホルダー(厚み3mm)に挿入し、ベクトルネットワークアナライザ(アジレントテクノロジー E8361A)を用いて反射係数及び透過係数を測定した。その値からNicolson−Ross−Weir法により複素比透磁率を算出した。
<粘度>
使用するシリコーン樹脂の粘度は、硬化前の状態で、V型回転式粘度計(ローターNo.2、回転数30rpm)、温度25℃で測定した。
市販の液状シリコーン樹脂A液(白金系触媒入り)10.4gと液状シリコーン樹脂B液(架橋剤入り)10.4gを自公転ミキサーで混合し、マトリックス樹脂とした。前記マトリックス樹脂に予めシラン化合物で表面処理されたカルボニル鉄粒子及び酸化アルミニウムを混合し、表1,表2に示す組成物を得た。次いで、両面にポリエチレンテレフタレートフィルムを積層し、温度100℃で10分間加熱プレス成形し、厚み1.5mmのシートを作製した。得られたシートの物性は表1, 表2に示すとおりである。
市販の液状シリコーン樹脂A液(白金系触媒入り)10.4gと液状シリコーン樹脂B液(架橋剤入り)10.4gを自公転ミキサーで混合し、マトリックス樹脂とした。前記マトリックス樹脂に予めシラン化合物で表面処理された鉄系軟磁性合金粒子のうち何れか一種を混合し、表2,表3に示す組成物を得た。次いで、両面にポリエチレンテレフタレートフィルムを積層し、温度100℃で10分間加熱プレス成形し、厚み1.5mmのシートを作製した。得られたシートの物性は表2,表3に示すとおりである。
12 センサ
13a,13b 熱伝導性シート試料
14 センサの先端
15 印加電流用電極
16 抵抗値用電極(温度測定用電極)
Claims (10)
- マトリックス樹脂成分と金属軟磁性体粒子と熱伝導性粒子を含む電磁波吸収性熱伝導性組成物であって、
前記金属軟磁性体粒子はカルボニル鉄粒子であり、電磁波吸収性熱伝導性組成物を母数としたとき30体積%以上含み、
前記電磁波吸収性熱伝導性組成物の比透磁率虚数部(μ") の値が、18〜26.5GHzの周波数範囲の少なくとも一部帯域で0.9以上であり、シートに成形された状態での厚み方向の熱伝導率が2.0W/m・K以上であることを特徴とする電磁波吸収性熱伝導性組成物。 - 前記電磁波吸収性熱伝導性組成物の比透磁率虚数部(μ") の値が、18〜26.5GHzの周波数範囲の全帯域で0.9以上である請求項1に記載の電磁波吸収性熱伝導性組成物。
- 前記熱伝導性粒子は、金属酸化物、金属窒化物、金属炭化物、金属ほう化物、及び金属単体から選択された少なくとも一種の熱伝導性無機粒子である請求項1又は2に記載の電磁波吸収性熱伝導性組成物。
- 前記マトリックス樹脂成分は熱硬化性樹脂である請求項1〜3のいずれか1項に記載の電磁波吸収性熱伝導性組成物。
- 前記熱硬化性樹脂がシリコーン樹脂である請求項4に記載の電磁波吸収性熱伝導性組成物。
- 前記シリコーン樹脂が、硬化前の状態で、V型回転式粘度計(ローターNo.2、回転数30rpm)で測定した粘度が、温度25℃において1.5Pa・s以下である液状シリコーン樹脂である請求項5に記載の電磁波吸収性熱伝導性組成物。
- 前記金属軟磁性体粒子及び熱伝導性粒子から選ばれる少なくとも一つの粒子は、シラン化合物、チタネート化合物、アルミネート化合物、もしくはその部分加水分解物により表面処理されている請求項1〜6のいずれか1項に記載の電磁波吸収性熱伝導性組成物。
- 前記熱伝導性粒子は、電磁波吸収性熱伝導性組成物を母数としたとき、7体積%以上45体積%以下である請求項1〜7のいずれか1項に記載の電磁波吸収性熱伝導性組成物。
- 前記カルボニル鉄粒子の平均粒子径は0.1μm以上100μm以下であり、前記熱伝導性粒子の平均粒子径は、0.1μm以上100μm以下ある請求項1〜8のいずれか1項に記載の電磁波吸収性熱伝導性組成物。
- 請求項1〜9のいずれかの電磁波吸収性熱伝導性組成物はシートに成形されており、前記シートの比透磁率虚数部(μ")の値が、18〜26.5GHzの周波数範囲の少なくとも一部帯域で0.9以上であり、前記シートの厚み方向の熱伝導率が2.0W/m・K以上であることを特徴とする電磁波吸収性熱伝導性シート。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019107705 | 2019-06-10 | ||
JP2019107705 | 2019-06-10 | ||
PCT/JP2020/006577 WO2020250493A1 (ja) | 2019-06-10 | 2020-02-19 | 電磁波吸収性熱伝導性組成物及びそのシート |
Publications (2)
Publication Number | Publication Date |
---|---|
JP6737979B1 true JP6737979B1 (ja) | 2020-08-12 |
JPWO2020250493A1 JPWO2020250493A1 (ja) | 2021-09-13 |
Family
ID=71949395
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020529663A Active JP6737979B1 (ja) | 2019-06-10 | 2020-02-19 | 電磁波吸収性熱伝導性組成物及びそのシート |
Country Status (2)
Country | Link |
---|---|
US (1) | US11785752B2 (ja) |
JP (1) | JP6737979B1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2022052761A (ja) * | 2020-09-23 | 2022-04-04 | レアード テクノロジーズ インコーポレイテッド | 熱伝導性電磁干渉(emi)吸収体 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002164689A (ja) * | 2000-11-28 | 2002-06-07 | Polymatech Co Ltd | 高熱伝導性電波吸収体 |
JP2014078698A (ja) * | 2012-09-20 | 2014-05-01 | Jsr Corp | 電磁波吸収性組成物および電磁波吸収体 |
JP2017175080A (ja) * | 2016-03-25 | 2017-09-28 | デクセリアルズ株式会社 | 電磁波吸収熱伝導シート、電磁波吸収熱伝導シートの製造方法及び半導体装置 |
JP2020038913A (ja) * | 2018-09-05 | 2020-03-12 | 株式会社トーキン | 電波抑制体、電源装置、電波抑制体の製造方法及び電源装置の製造方法 |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4623244Y1 (ja) | 1967-05-01 | 1971-08-11 | ||
JP4623244B2 (ja) | 2000-04-11 | 2011-02-02 | 信越化学工業株式会社 | 電磁波吸収性熱伝導性シリコーンゴム組成物 |
JP3719382B2 (ja) * | 2000-10-25 | 2005-11-24 | 信越化学工業株式会社 | 電磁波吸収性シリコーンゴム組成物 |
JP3608612B2 (ja) * | 2001-03-21 | 2005-01-12 | 信越化学工業株式会社 | 電磁波吸収性熱伝導組成物及び熱軟化性電磁波吸収性放熱シート並びに放熱施工方法 |
JP2002329995A (ja) | 2001-05-07 | 2002-11-15 | Shin Etsu Chem Co Ltd | 電磁波吸収体 |
JP2002374092A (ja) * | 2001-06-15 | 2002-12-26 | Polymatech Co Ltd | 放熱性電波吸収体 |
JP2003023287A (ja) | 2001-07-05 | 2003-01-24 | Polymatech Co Ltd | 電波吸収シート |
JP2003347787A (ja) * | 2002-05-23 | 2003-12-05 | Shin Etsu Chem Co Ltd | 電磁波吸収性組成物 |
JP3944741B2 (ja) | 2003-06-27 | 2007-07-18 | 信越化学工業株式会社 | 電磁波吸収性熱伝導性シリコーン組成物及びその成形体 |
JP4311653B2 (ja) | 2004-03-30 | 2009-08-12 | 株式会社タイカ | 電磁波吸収体 |
US20070196671A1 (en) | 2004-03-30 | 2007-08-23 | Geltec Co., Ltd. | Electromagnetic wave absorber |
JP4764220B2 (ja) | 2005-03-30 | 2011-08-31 | 地方独立行政法人 大阪市立工業研究所 | 熱伝導性シート |
KR100700346B1 (ko) | 2005-08-05 | 2007-03-29 | 쓰리엠 이노베이티브 프로퍼티즈 캄파니 | 기능성을 갖는 방열 점착테이프 |
JP2010183033A (ja) * | 2009-02-09 | 2010-08-19 | Sony Corp | 電磁波抑制放熱用組成物及び電磁波抑制放熱用組成物の製造方法 |
JP5654249B2 (ja) | 2010-03-08 | 2015-01-14 | 城東テクノ株式会社 | 積層型木質系電波吸収板材及びその作製方法 |
JP6017416B2 (ja) * | 2010-05-10 | 2016-11-02 | コリア インスティチュ−ト オブ マシナリ− アンド マテリアルズ | 広帯域電磁気波吸収体及びその製造方法 |
JP2013118313A (ja) | 2011-12-05 | 2013-06-13 | Dexerials Corp | 電磁波吸収性熱伝導シート及び電磁波吸収性熱伝導シートの製造方法 |
JP5443657B2 (ja) * | 2011-12-27 | 2014-03-19 | パナソニック株式会社 | シートの異方性熱伝導組成物の成形品 |
US9999158B2 (en) * | 2013-01-03 | 2018-06-12 | Henkel IP & Holding GmbH | Thermally conductive EMI suppression compositions |
US20160233173A1 (en) | 2015-02-06 | 2016-08-11 | Laird Technologies, Inc. | Thermally-conductive electromagnetic interference (emi) absorbers with silicon carbide |
US11229147B2 (en) | 2015-02-06 | 2022-01-18 | Laird Technologies, Inc. | Thermally-conductive electromagnetic interference (EMI) absorbers with silicon carbide |
EP3348124B1 (en) * | 2015-10-16 | 2021-05-26 | Laird Technologies, Inc. | Thermally-conductive electromagnetic interference (emi) absorbers positioned or positionable between board level shields and heat sinks |
TWI778128B (zh) * | 2017-09-29 | 2022-09-21 | 日商麥克賽爾股份有限公司 | 電磁波吸收體用組成物、及電磁波吸收體 |
JP2020009974A (ja) * | 2018-07-11 | 2020-01-16 | 北川工業株式会社 | 熱伝導組成物 |
JP7264391B2 (ja) * | 2018-07-11 | 2023-04-25 | 北川工業株式会社 | 熱伝導組成物 |
-
2020
- 2020-02-19 JP JP2020529663A patent/JP6737979B1/ja active Active
- 2020-02-19 US US17/263,062 patent/US11785752B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002164689A (ja) * | 2000-11-28 | 2002-06-07 | Polymatech Co Ltd | 高熱伝導性電波吸収体 |
JP2014078698A (ja) * | 2012-09-20 | 2014-05-01 | Jsr Corp | 電磁波吸収性組成物および電磁波吸収体 |
JP2017175080A (ja) * | 2016-03-25 | 2017-09-28 | デクセリアルズ株式会社 | 電磁波吸収熱伝導シート、電磁波吸収熱伝導シートの製造方法及び半導体装置 |
JP2020038913A (ja) * | 2018-09-05 | 2020-03-12 | 株式会社トーキン | 電波抑制体、電源装置、電波抑制体の製造方法及び電源装置の製造方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2022052761A (ja) * | 2020-09-23 | 2022-04-04 | レアード テクノロジーズ インコーポレイテッド | 熱伝導性電磁干渉(emi)吸収体 |
JP7264962B2 (ja) | 2020-09-23 | 2023-04-25 | レアード テクノロジーズ インコーポレイテッド | 熱伝導性電磁干渉(emi)吸収体 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2020250493A1 (ja) | 2021-09-13 |
US20220071070A1 (en) | 2022-03-03 |
US11785752B2 (en) | 2023-10-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4623244B2 (ja) | 電磁波吸収性熱伝導性シリコーンゴム組成物 | |
JP3719382B2 (ja) | 電磁波吸収性シリコーンゴム組成物 | |
TWI327322B (ja) | ||
TWI282156B (en) | Heat conductive sheet with magnetic wave absorption | |
JP5105740B2 (ja) | 表面改質コランダム及び樹脂組成物 | |
CN106663473A (zh) | 具有混合纵横比颗粒分散体的热界面材料 | |
WO2020250493A1 (ja) | 電磁波吸収性熱伝導性組成物及びそのシート | |
US20190352543A1 (en) | Composite compositions for electromagnetic interference shielding and articles including the same | |
WO2022009486A1 (ja) | 熱伝導性シリコーンゲル組成物、熱伝導性シリコーンゲルシート及びその製造方法 | |
JP6737979B1 (ja) | 電磁波吸収性熱伝導性組成物及びそのシート | |
TWI285528B (en) | Extrudable crosslinked grease-like electromagnetic waves absorbent | |
JP2010183033A (ja) | 電磁波抑制放熱用組成物及び電磁波抑制放熱用組成物の製造方法 | |
JP6942907B1 (ja) | 熱伝導性シリコーンゲル組成物、熱伝導性シリコーンゲルシート及びその製造方法 | |
Vishnu Chandar et al. | Polysiloxane-graphite composites as thermal interface material for light emitting diode application: a study on impact of graphite nanopowder on thermal and surface properties | |
WO2022049815A1 (ja) | 熱伝導性シリコーンゲル組成物、熱伝導性シリコーンシート及びその製造方法 | |
KR20230059675A (ko) | 열전도성 실리콘 겔 조성물, 열전도성 실리콘 시트 및 그 제조 방법 | |
CN113661215B (zh) | 耐热性有机硅树脂组合物及耐热性有机硅树脂复合材料 | |
JP7426545B1 (ja) | 熱伝導性組成物 | |
WO2024057678A1 (ja) | 熱伝導性組成物 | |
Vishnu Chandar et al. | Impact of aluminum oxide nanopowder on thermal, optical and surface properties of polysiloxane-aluminum oxide composites as elastomeric thermal pad for light emitting diode application | |
CN113454165B (zh) | 导热性硅胶组合物 | |
JP2023166880A (ja) | 耐熱性シリコーン組成物、耐熱性シリコーンシート及びその製造方法 | |
Kumaresan et al. | Synthesis of dispensable PDMS/Al2O3/GO thermal gap filler and performance comparison with commercial thermal gap fillers for electronics packaging applications | |
KR102705102B1 (ko) | 절연 방열 시트 | |
Robinson et al. | Influence of boron nitride on the network structure and properties of poly (dimethylsiloxane) composite materials |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20200605 |
|
A871 | Explanation of circumstances concerning accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A871 Effective date: 20200605 |
|
A975 | Report on accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A971005 Effective date: 20200630 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20200707 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20200716 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6737979 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |