JPWO2020202908A5 - - Google Patents
Download PDFInfo
- Publication number
- JPWO2020202908A5 JPWO2020202908A5 JP2021511223A JP2021511223A JPWO2020202908A5 JP WO2020202908 A5 JPWO2020202908 A5 JP WO2020202908A5 JP 2021511223 A JP2021511223 A JP 2021511223A JP 2021511223 A JP2021511223 A JP 2021511223A JP WO2020202908 A5 JPWO2020202908 A5 JP WO2020202908A5
- Authority
- JP
- Japan
- Prior art keywords
- conductive sheet
- sheet
- heat conductive
- graphite
- heat
- 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.)
- Granted
Links
Description
本発明の第１の側面に係る熱伝導シートの製造方法によれば、湿式抄紙法により作製される黒鉛放熱シート層と、柔軟性を有する粘着層を交互に積層した積層体を準備する工程と、前記積層体を、積層方向に所定の厚さで切断する工程とを含み、前記切断工程により得られた熱伝導シートは、前記黒鉛放熱シート層と積層体との積層方向と交差する方向における熱伝導率が、４Ｗ／ｍ・Ｋ以上であり、かつ密度を、０．２ｇ／ｃｍ3～１．０ｇ／ｃｍ3
であり、前記積層体を準備する工程が、形状異方性を発揮する黒鉛フィラーと、有機繊維を湿式抄紙する工程と、湿式抄紙されたシート材を、熱プレスする工程と、熱プレスされたシート材を、所定の大きさにカットして、複数の黒鉛放熱シート層を得る工程を含むことができる。これにより、湿式抄紙済み黒鉛放熱シート層としたことで柔軟性を維持しつつも低密度化が実現され、軽量化と柔軟性の両立を図った熱伝導シートを達成できる。
According to the method for producing a thermally conductive sheet according to the first aspect of the present invention, a step of preparing a laminate in which a graphite heat-dissipating sheet layer produced by a wet papermaking method and a flexible adhesive layer are alternately laminated; , and cutting the laminate with a predetermined thickness in the lamination direction, and the heat conductive sheet obtained by the cutting step is cut in a direction intersecting the lamination direction of the graphite heat dissipation sheet layer and the laminate. It has a thermal conductivity of 4 W/m·K or more, a density of 0.2 g/cm 3 to 1.0 g/cm 3 , and the step of preparing the laminate exhibits shape anisotropy. A step of wet-making a graphite filler and an organic fiber, a step of hot-pressing the wet-paper-made sheet material, cutting the hot-pressed sheet material into a predetermined size, and forming a plurality of graphite heat-dissipating sheet layers. can include the step of obtaining As a result, it is possible to achieve a low density while maintaining flexibility by using a graphite heat dissipation sheet layer that has been wet paper-made, and to achieve a heat conductive sheet that achieves both weight reduction and flexibility.
さらにまた、本発明の他の側面に係る熱伝導シートの製造方法によれば、上記いずれかに加えて、前記積層体を準備する工程が、形状異方性を発揮する黒鉛フィラーと、有機繊維を湿式抄紙する工程と、湿式抄紙されたシート材を、熱プレスする工程と、熱プレスされたシート材を、所定の大きさにカットして、複数の黒鉛放熱シート層を得る工程を含むことができる。これにより、黒鉛フィラー同士を互いにつながりやすくして熱伝導パスを構成し、熱伝導性を向上できる利点が得られる。
Furthermore, according to the method for producing a heat conductive sheet according to another aspect of the present invention, in addition to any of the above, the step of preparing the laminate includes a graphite filler exhibiting shape anisotropy and an organic fiber , hot-pressing the wet-paper-made sheet material, and cutting the hot-pressed sheet material into a predetermined size to obtain a plurality of graphite heat-dissipating sheet layers. can be done. As a result, the graphite fillers can be easily connected to each other to form a heat conduction path, and the advantage of improving the heat conductivity can be obtained.
さらにまた、本発明の第４の側面に係る熱伝導シートの製造方法によれば、上記いずれかに加えて、前記黒鉛放熱シート層の組成は、黒鉛含有量が５０～９０ｗｔ％、有機繊維含有量が１０～５０ｗｔ％である。これにより、湿式抄紙工程で得られた黒鉛放熱シート層は、有機繊維を用いて黒鉛を保持できるため、従来の樹脂をマトリックスとして黒鉛を保持する熱伝導シートと比べ、より多くの黒鉛を含有させることができ、熱伝導性を高くできる利点が得られる。
Furthermore, according to the method for manufacturing a thermally conductive sheet according to the fourth aspect of the present invention, in addition to any of the above, the composition of the graphite heat-dissipating sheet layer contains 50 to 90 wt% graphite and contains organic fibers. The amount is 10-50 wt%. As a result, the graphite heat-dissipating sheet layer obtained in the wet papermaking process can hold graphite using organic fibers, so it can contain more graphite than conventional heat-conducting sheets that hold graphite in a resin matrix. It is possible to obtain the advantage of being able to increase the thermal conductivity.
さらにまた、本発明の第５の側面に係る熱伝導シートの製造方法によれば、上記いずれかに加えて、前記有機繊維を、パラアラミド繊維、パラアラミドパルプ、メタアラミド繊維、メタアラミドパルプ、ポリフェニレンサルファイド繊維、ＰＥＴ繊維、難燃ＰＥＴ繊維、難燃レーヨン繊維のいずれか一以上とできる。
Furthermore, according to the method for producing a heat conductive sheet according to the fifth aspect of the present invention, in addition to any of the above, the organic fiber is para-aramid fiber, para-aramid pulp, meta-aramid fiber, meta-aramid pulp, polyphenylene sulfide One or more of fibers, PET fibers, flame-retardant PET fibers, and flame-retardant rayon fibers can be used.
さらにまた、本発明の第６の側面に係る熱伝導シートの製造方法によれば、熱伝導シートの製造方法であって、湿式抄紙法により作製される黒鉛放熱シート層と、柔軟性を有する粘着層を交互に積層した積層体を準備する工程と、前記積層体を、積層方向に所定の厚さで切断する工程とを含み、前記切断工程により得られた熱伝導シートは、前記黒鉛放熱シート層と積層体との積層方向と交差する方向における熱伝導率が、４Ｗ／ｍ・Ｋ以上であり、かつ密度が、０．２ｇ／ｃｍ
3
～１．０ｇ／ｃｍ
3
であり、前記積層体を準備する工程が、前記黒鉛放熱シート層の表面に、前記粘着層として、粘着剤と発泡性粒子の混合液を塗布する工程と、前記混合液を塗布した黒鉛放熱シート層を複数枚、積層する工程と、前記黒鉛放熱シート層を積層した黒鉛放熱シート積層体を、加熱して膨張させる工程とを含むことができる。これにより、発泡性粒子で発泡させることで粘着剤を薄くでき、粘着剤の塗布量を減らせるため、粘着層の乾燥時間を短くして生産性を向上させることができる。
Furthermore, according to the method for producing a thermally conductive sheet according to the sixth aspect of the present invention, there is provided a method for producing a thermally conductive sheet, comprising: a graphite heat-dissipating sheet layer produced by a wet papermaking method; A step of preparing a laminate in which layers are alternately laminated; The laminate has a thermal conductivity of 4 W/m·K or more in a direction crossing the lamination direction of the layers and the laminate, and a density of 0.2 g/cm 3 to 1.0 g / cm 3 . The step of preparing is a step of applying a mixture of an adhesive and expandable particles as the adhesive layer to the surface of the graphite heat dissipation sheet layer, and a step of laminating a plurality of graphite heat dissipation sheet layers coated with the mixture. and a step of heating and expanding the graphite heat-dissipating sheet laminate obtained by laminating the graphite heat-dissipating sheet layers. As a result, the adhesive can be thinned by foaming with the expandable particles, and the amount of the adhesive applied can be reduced, so that the drying time of the adhesive layer can be shortened and the productivity can be improved.
さらにまた、本発明の第７の側面に係る熱伝導シートの製造方法によれば、上記いずれかに加えて、前記混合液は、前記粘着剤の固形分に対して、発泡性粒子を１．０％～１５．０％添加したものとできる。
Furthermore, according to the method for manufacturing a heat conductive sheet according to the seventh aspect of the present invention, in addition to any of the above, the mixed liquid contains 1.0% expandable particles with respect to the solid content of the adhesive. 0% to 15.0% can be added.
さらにまた、本発明の第８の側面に係る熱伝導シートの製造方法によれば、上記いずれかに加えて、前記加熱膨張工程で、加熱前の前記黒鉛放熱シート積層体を、加熱により３倍以上の厚さに膨張させることができる。
Furthermore, according to the method for manufacturing a heat conductive sheet according to the eighth aspect of the present invention, in addition to any of the above, in the heating expansion step, the graphite heat dissipation sheet laminate before heating is tripled by heating. It can be inflated to more thickness.
さらにまた、本発明の第９の側面に係る熱伝導シートの製造方法によれば、上記いずれかに加えて、前記粘着剤を、加熱することでタック性が発現する粘着剤とできる。
Furthermore, according to the method for producing a heat conductive sheet according to the ninth aspect of the present invention, in addition to any of the above, the adhesive can be an adhesive that develops tackiness when heated.
さらにまた、本発明の第１０の側面に係る熱伝導シートの製造方法によれば、上記いずれかに加えて、前記粘着剤を、シリコーン系樹脂とできる。
Furthermore, according to the method for manufacturing a heat conductive sheet according to the tenth aspect of the present invention, in addition to any of the above, the adhesive can be a silicone resin.
さらにまた、本発明の第１１の側面に係る熱伝導シートの製造方法によれば、上記いずれかに加えて、前記積層体を切断する工程が、マルチワイヤーソー、ダイヤモンドワイヤーソー、ＣＢＮワイヤーソー、マルチブレードソーのいずれかでもって前記積層体を切断することができる。
Furthermore, according to the method for manufacturing a heat conductive sheet according to the eleventh aspect of the present invention, in addition to any of the above, the step of cutting the laminate includes a multi-wire saw, a diamond wire saw, a CBN wire saw, The laminate can be cut with any of the multi-blade saws.
さらにまた、本発明の第１２の側面に係る熱伝導シートによれば、主面を有するシート状の熱伝導シートであって、前記主面に、湿式抄紙済み黒鉛放熱シート層と、柔軟性を有する粘着層とが交互に表れており、厚さ方向における熱伝導率が、４Ｗ／ｍ・Ｋ以上であり、かつ密度が、０．２ｇ／ｃｍ3～１．０ｇ／ｃｍ3であり、前記黒鉛放熱シート層が、形状異方性を発揮する黒鉛フィラーと、有機繊維を含んでいる。上記構成により、湿式抄紙済み黒鉛放熱シート層としたことで柔軟性を維持しつつも低密度化が実現され、軽量化と柔軟性の両立を図った熱伝導シートを達成できる。
さらにまた、本発明の第１３の側面に係る熱伝導シートによれば、主面を有するシート状の熱伝導シートであって、前記主面に、湿式抄紙済み黒鉛放熱シート層と、柔軟性を有する粘着層とが交互に表れており、厚さ方向における熱伝導率が、４Ｗ／ｍ・Ｋ以上であり、かつ密度が、０．２ｇ／ｃｍ
3
～１．０ｇ／ｃｍ
3
であり、前記粘着層に含まれる粘着剤は、塗布前に該粘着剤の固形分に対して、１．０％～１５．０％の発泡性粒子を添加したものである。
Furthermore, according to the thermally conductive sheet according to the twelfth aspect of the present invention, there is provided a sheet-like thermally conductive sheet having a main surface, the main surface being provided with a wet paper-made graphite heat dissipation sheet layer and flexibility. and adhesive layers alternately appearing, the thermal conductivity in the thickness direction is 4 W/m·K or more, and the density is 0.2 g/cm 3 to 1.0 g/cm 3 , The graphite heat-dissipating sheet layer contains a graphite filler exhibiting shape anisotropy and an organic fiber . With the above configuration, the graphite heat-dissipating sheet layer that has undergone wet papermaking achieves a low density while maintaining flexibility, and a heat-conducting sheet that achieves both weight reduction and flexibility can be achieved.
Furthermore, according to the thermally conductive sheet according to the thirteenth aspect of the present invention, there is provided a sheet-like thermally conductive sheet having a main surface, the main surface being provided with a wet paper-made graphite heat dissipation sheet layer and flexibility. and the adhesive layers alternately appearing, the thermal conductivity in the thickness direction is 4 W/m·K or more, and the density is 0.2 g/cm 3 to 1.0 g / cm 3 , The adhesive contained in the adhesive layer is obtained by adding 1.0% to 15.0% of expandable particles to the solid content of the adhesive before coating.
さらにまた、本発明の他の側面に係る熱伝導シートによれば、上記いずれかに加えて、前記黒鉛放熱シート層が、形状異方性を発揮する黒鉛フィラーと、有機繊維を含むことができる。
Furthermore, according to the heat conductive sheet according to another aspect of the present invention, in addition to any of the above, the graphite heat dissipation sheet layer can contain a graphite filler exhibiting shape anisotropy and an organic fiber. .
さらにまた、本発明の第１５の側面に係る熱伝導シートによれば、上記いずれかに加えて、前記黒鉛放熱シート層の組成を、黒鉛含有量は５０～９０ｗｔ％、有機繊維含有量は１０～５０ｗｔ％とできる。上記構成により、湿式抄紙済み黒鉛放熱シート層は有機繊維を用いて黒鉛を保持できるため、従来の樹脂をマトリックスとして黒鉛を保持する熱伝導シートと比べ、より多くの黒鉛を含有させることができ、熱伝導性を高くできる利点が得られる。
Furthermore, according to the heat conductive sheet according to the fifteenth aspect of the present invention, in addition to any of the above, the composition of the graphite heat dissipation sheet layer is such that the graphite content is 50 to 90 wt% and the organic fiber content is 10 ~50wt%. With the above configuration, the graphite heat dissipation sheet layer after wet papermaking can hold graphite using organic fibers, so compared to a conventional heat conductive sheet that holds graphite using a resin as a matrix, more graphite can be contained. The advantage of being able to increase the thermal conductivity is obtained.
さらにまた、本発明の第１６の側面に係る熱伝導シートによれば、上記いずれかに加えて、前記有機繊維を、パラアラミド繊維、パラアラミドパルプ、メタアラミド繊維、メタアラミドパルプ、ポリフェニレンサルファイド繊維、ＰＥＴ繊維、難燃ＰＥＴ繊維、難燃レーヨン繊維のいずれか一以上とできる。
Furthermore, according to the heat conductive sheet according to the sixteenth aspect of the present invention, in addition to any of the above, the organic fiber is para-aramid fiber, para-aramid pulp, meta-aramid fiber, meta-aramid pulp, polyphenylene sulfide fiber, PET One or more of fibers, flame-retardant PET fibers, and flame-retardant rayon fibers can be used.
さらにまた、本発明の他の側面に係る熱伝導シートによれば、上記いずれかに加えて、前記粘着層に含まれる粘着剤を、塗布前に該粘着剤の固形分に対して、１．０％～１５．０％の発泡性粒子を添加したものとできる。 Furthermore, according to the heat conductive sheet according to another aspect of the present invention, in addition to any of the above, the adhesive contained in the adhesive layer is added to the solid content of the adhesive before coating. 0% to 15.0% of expandable particles can be added.
Claims (16)
湿式抄紙法により作製される黒鉛放熱シート層と、柔軟性を有する粘着層を交互に積層した積層体を準備する工程と、
前記積層体を、積層方向に所定の厚さで切断する工程と
を含み、
前記切断工程により得られた熱伝導シートは、前記黒鉛放熱シート層と積層体との積層方向と交差する方向における熱伝導率が、４Ｗ／ｍ・Ｋ以上であり、かつ
密度が、０．２ｇ／ｃｍ3～１．０ｇ／ｃｍ3であり、
前記積層体を準備する工程が、
形状異方性を発揮する黒鉛フィラーと、有機繊維を湿式抄紙する工程と、
湿式抄紙されたシート材を、熱プレスする工程と、
熱プレスされたシート材を、所定の大きさにカットして、複数の黒鉛放熱シート層を得る工程を含む熱伝導シートの製造方法。 A method for manufacturing a heat conductive sheet,
A step of preparing a laminate in which a graphite heat dissipation sheet layer produced by a wet papermaking method and a flexible adhesive layer are alternately laminated;
A step of cutting the laminate with a predetermined thickness in the lamination direction,
The thermal conductive sheet obtained by the cutting step has a thermal conductivity of 4 W/m·K or more in a direction intersecting the lamination direction of the graphite heat dissipation sheet layer and the laminate, and a density of 0.2 g. /cm 3 to 1.0 g/cm 3 ,
The step of preparing the laminate includes
Graphite filler exhibiting shape anisotropy, a process of wet papermaking organic fibers,
a step of hot-pressing the wet paper-made sheet material;
A method for producing a thermally conductive sheet, comprising a step of cutting a hot-pressed sheet material into a predetermined size to obtain a plurality of graphite heat-dissipating sheet layers.
前記積層体の組成は、
前記黒鉛放熱シート層の体積比率が５～５０ｖｏｌ％、
前記粘着層が５０～９５ｖｏｌ％
である熱伝導シートの製造方法。 A method for manufacturing the heat conductive sheet according to claim 1,
The composition of the laminate is
The volume ratio of the graphite heat dissipation sheet layer is 5 to 50 vol%,
The adhesive layer is 50 to 95 vol%
A method for producing a heat conductive sheet.
前記黒鉛放熱シート層と積層体を準備する工程における前記黒鉛放熱シート層の厚さが、０．０１ｍｍ～１．００ｍｍである熱伝導シートの製造方法。 A method for manufacturing the heat conductive sheet according to claim 1 or 2,
A method for producing a thermally conductive sheet, wherein the thickness of the graphite heat-dissipating sheet layer in the step of preparing the graphite heat-dissipating sheet layer and the laminate is 0.01 mm to 1.00 mm.
前記黒鉛放熱シート層の組成は、黒鉛含有量が５０～９０ｗｔ％、有機繊維含有量が１０～５０ｗｔ％である熱伝導シートの製造方法。 A method for manufacturing the heat conductive sheet according to claim 3 ,
The method for producing a heat conductive sheet, wherein the graphite heat dissipation sheet layer has a graphite content of 50 to 90 wt% and an organic fiber content of 10 to 50 wt%.
前記有機繊維が、パラアラミド繊維、パラアラミドパルプ、メタアラミド繊維、メタアラミドパルプ、ポリフェニレンサルファイド繊維、ＰＥＴ繊維、難燃ＰＥＴ繊維、難燃レーヨン繊維のいずれか一以上である熱伝導シートの製造方法。 A method for producing a heat conductive sheet according to claim 3 or 4 ,
A method for producing a heat conductive sheet, wherein the organic fiber is any one or more of para-aramid fiber, para-aramid pulp, meta-aramid fiber, meta-aramid pulp, polyphenylene sulfide fiber, PET fiber, flame-retardant PET fiber, and flame-retardant rayon fiber.
湿式抄紙法により作製される黒鉛放熱シート層と、柔軟性を有する粘着層を交互に積層した積層体を準備する工程と、
前記積層体を、積層方向に所定の厚さで切断する工程と
を含み、
前記切断工程により得られた熱伝導シートは、前記黒鉛放熱シート層と積層体との積層方向と交差する方向における熱伝導率が、４Ｗ／ｍ・Ｋ以上であり、かつ
密度が、０．２ｇ／ｃｍ 3 ～１．０ｇ／ｃｍ 3 であり、
前記積層体を準備する工程が、
前記黒鉛放熱シート層の表面に、前記粘着層として、粘着剤と発泡性粒子の混合液を塗布する工程と、
前記混合液を塗布した黒鉛放熱シート層を複数枚、積層する工程と、
前記黒鉛放熱シート層を積層した黒鉛放熱シート積層体を、加熱して膨張させる工程とを含む熱伝導シートの製造方法。 A method for manufacturing a heat conductive sheet,
A step of preparing a laminate in which a graphite heat dissipation sheet layer produced by a wet papermaking method and a flexible adhesive layer are alternately laminated;
a step of cutting the laminate with a predetermined thickness in the lamination direction;
including
The heat conductive sheet obtained by the cutting step has a heat conductivity of 4 W/m·K or more in a direction intersecting with the lamination direction of the graphite heat dissipation sheet layer and the laminate, and
a density of 0.2 g/cm 3 to 1.0 g/cm 3 ;
The step of preparing the laminate includes
a step of applying a mixture of an adhesive and expandable particles as the adhesive layer to the surface of the graphite heat-dissipating sheet layer;
A step of laminating a plurality of graphite heat dissipation sheet layers coated with the mixed solution;
A method for producing a thermally conductive sheet, comprising heating and expanding the graphite heat-dissipating sheet laminate obtained by laminating the graphite heat-dissipating sheet layers.
前記混合液は、前記粘着剤の固形分に対して、発泡性粒子を１．０％～１５．０％添加したものである熱伝導シートの製造方法。 A method for producing a heat conductive sheet according to claim 6 ,
The method for producing a heat conductive sheet, wherein the mixed liquid contains 1.0% to 15.0% of expandable particles with respect to the solid content of the adhesive.
前記加熱膨張工程で、加熱前の前記黒鉛放熱シート積層体を、加熱により３倍以上の厚さに膨張させてなる熱伝導シートの製造方法。 A method for producing a heat conductive sheet according to claim 6 or 7 ,
A method for producing a thermally conductive sheet, wherein in the thermal expansion step, the graphite heat-dissipating sheet laminate before heating is expanded to a thickness of three times or more by heating.
前記粘着剤は、加熱することでタック性が発現する粘着剤である熱伝導シートの製造方法。 A method for producing a heat conductive sheet according to any one of claims 6 to 8 ,
The method for producing a heat conductive sheet, wherein the adhesive is an adhesive that develops tackiness when heated.
前記粘着剤は、シリコーン系樹脂を含む熱伝導シートの製造方法。 A method for producing a heat conductive sheet according to any one of claims 6 to 9 ,
The method for producing a thermally conductive sheet, wherein the pressure-sensitive adhesive contains a silicone-based resin.
前記積層体を切断する工程が、マルチワイヤーソー、ダイヤモンドワイヤーソー、ＣＢＮワイヤーソー、マルチブレードソーのいずれかでもって前記積層体を切断してなる熱伝導シートの製造方法。 A method for producing a heat conductive sheet according to any one of claims 1 to 10 ,
The method for producing a heat conductive sheet, wherein the step of cutting the laminate comprises cutting the laminate with any one of a multi-wire saw, a diamond wire saw, a CBN wire saw, and a multi-blade saw.
前記主面に、湿式抄紙済み黒鉛放熱シート層と、柔軟性を有する粘着層とが交互に表れており、
厚さ方向における熱伝導率が、４Ｗ／ｍ・Ｋ以上であり、かつ
密度が、０．２ｇ／ｃｍ3～１．０ｇ／ｃｍ3であり、
前記黒鉛放熱シート層が、形状異方性を発揮する黒鉛フィラーと、有機繊維を含んでなる熱伝導シート。 A sheet-like heat conductive sheet having a main surface,
On the main surface, wet paper-made graphite heat dissipation sheet layers and flexible adhesive layers appear alternately,
a thermal conductivity in the thickness direction of 4 W/m·K or more, and a density of 0.2 g/cm 3 to 1.0 g/cm 3 ;
The graphite heat-dissipating sheet layer comprises a graphite filler exhibiting shape anisotropy and a heat-conducting sheet containing organic fibers .
前記主面に、湿式抄紙済み黒鉛放熱シート層と、柔軟性を有する粘着層とが交互に表れており、
厚さ方向における熱伝導率が、４Ｗ／ｍ・Ｋ以上であり、かつ
密度が、０．２ｇ／ｃｍ 3 ～１．０ｇ／ｃｍ 3 であり、
前記粘着層に含まれる粘着剤は、塗布前に該粘着剤の固形分に対して、１．０％～１５．０％の発泡性粒子を添加したものである熱伝導シート。 A sheet-like heat conductive sheet having a main surface,
On the main surface, wet paper-made graphite heat dissipation sheet layers and flexible adhesive layers appear alternately,
The thermal conductivity in the thickness direction is 4 W / m K or more, and
a density of 0.2 g/cm 3 to 1.0 g/cm 3 ;
The heat conductive sheet, wherein the adhesive contained in the adhesive layer is obtained by adding 1.0% to 15.0% of expandable particles to the solid content of the adhesive before coating.
前記主面における黒鉛放熱シート層の厚さが、０．０１ｍｍ～１．００ｍｍである熱伝導シート。 The heat conductive sheet according to claim 12 or 13,
The heat conductive sheet, wherein the thickness of the graphite heat dissipation sheet layer on the main surface is 0.01 mm to 1.00 mm.
前記黒鉛放熱シート層の組成が、黒鉛含有量は５０～９０ｗｔ％、有機繊維含有量は１０～５０ｗｔ％である熱伝導シート。 The heat conductive sheet according to claim 12 or 13 ,
A thermally conductive sheet, wherein the composition of the graphite heat-dissipating sheet layer is such that the graphite content is 50 to 90 wt% and the organic fiber content is 10 to 50 wt%.
前記有機繊維が、パラアラミド繊維、パラアラミドパルプ、メタアラミド繊維、メタアラミドパルプ、ポリフェニレンサルファイド繊維、ＰＥＴ繊維、難燃ＰＥＴ繊維、難燃レーヨン繊維のいずれか一以上である熱伝導シート。 The heat conductive sheet according to claim 15 ,
The heat conductive sheet, wherein the organic fiber is any one or more of para-aramid fiber, para-aramid pulp, meta-aramid fiber, meta-aramid pulp, polyphenylene sulfide fiber, PET fiber, flame-retardant PET fiber, and flame-retardant rayon fiber.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019073167 | 2019-04-05 | ||
| JP2019073167 | 2019-04-05 | ||
| PCT/JP2020/007617 WO2020202908A1 (en) | 2019-04-05 | 2020-02-26 | Thermally conductive sheet and method for manufacturing same |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPWO2020202908A1 JPWO2020202908A1 (en) | 2020-10-08 |
| JPWO2020202908A5 true JPWO2020202908A5 (en) | 2023-03-06 |
| JP7358459B2 JP7358459B2 (en) | 2023-10-10 |
Family
ID=72668305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2021511223A Active JP7358459B2 (en) | 2019-04-05 | 2020-02-26 | Thermal conductive sheet and its manufacturing method |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7358459B2 (en) |
| TW (1) | TW202106498A (en) |
| WO (1) | WO2020202908A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ309826B6 (en) * | 2022-09-07 | 2023-11-08 | Spur A.S. | The method of production of reoriented lightweight polyolefin sheets |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008049607A (en) * | 2006-08-25 | 2008-03-06 | Teijin Ltd | Heat-conductive laminate with bonded thin film of electrical insulation |
| JP5165490B2 (en) * | 2008-07-30 | 2013-03-21 | 阿波製紙株式会社 | Manufacturing method of heat dissipation sheet |
| JP5851255B2 (en) * | 2012-01-16 | 2016-02-03 | 阿波製紙株式会社 | Manufacturing method of heat dissipation sheet |
| JP2016022685A (en) * | 2014-07-23 | 2016-02-08 | 豊通ケミプラス株式会社 | Heat conductive laminate |
| JP6552974B2 (en) * | 2016-01-22 | 2019-07-31 | 阿波製紙株式会社 | Heat dissipation sheet and method of manufacturing heat dissipation sheet |
| JP6860977B2 (en) * | 2016-03-30 | 2021-04-21 | 安積濾紙株式会社 | Composite material using phase change substance, its manufacturing method and its arrangement method |
| JP6916706B2 (en) * | 2016-10-28 | 2021-08-11 | 大阪ガスケミカル株式会社 | Manufacturing method of molded insulation |
| JP6601845B2 (en) * | 2016-12-14 | 2019-11-06 | 株式会社Ｍｏｚｕ | Thermal diffusion sheet, far-infrared radiation sheet, thermal diffusion sheet manufacturing method and temperature control method |
-
2020
- 2020-02-26 JP JP2021511223A patent/JP7358459B2/en active Active
- 2020-02-26 WO PCT/JP2020/007617 patent/WO2020202908A1/en active Application Filing
- 2020-03-26 TW TW109110201A patent/TW202106498A/en unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3885135B1 (en) | Thermal conductive sheet and method for manufacturing same | |
| JP5217745B2 (en) | Thermal conductive sheet and manufacturing method thereof | |
| JP5851255B2 (en) | Manufacturing method of heat dissipation sheet | |
| US11618247B2 (en) | Thermally conductive sheet and production method for same | |
| WO2014063476A1 (en) | Heat-conducting pad, method for manufacturing heat-conducting pad, radiating apparatus and electronic device | |
| JP2002046137A (en) | Method for manufacturing thermally conductive sheet | |
| JP6094119B2 (en) | Manufacturing method of heat conductive sheet | |
| JP2010034422A (en) | Method of manufacturing radiator sheet | |
| JPWO2020202908A5 (en) | ||
| TW202138199A (en) | Heat conductive sheet and manufacturing method for same | |
| JP2002164481A (en) | Heat conductive sheet | |
| CN107105586A (en) | A kind of shockproof foam piece of heat conduction | |
| JP7358459B2 (en) | Thermal conductive sheet and its manufacturing method | |
| JP2017170769A (en) | Process for producing high heat conducting roll-like heat dissipation sheet material | |
| CN103826425B (en) | A kind of preparation method of high heat conduction foam | |
| CN115092920B (en) | Graphene heat conduction gasket and preparation method thereof | |
| CN110053111A (en) | A kind of laminating technology of electrical laminated wood | |
| JP5987603B2 (en) | Manufacturing method of heat conductive sheet | |
| KR101123561B1 (en) | Heat Conducting Sheet with Directional Chip Layer and Method for Producing the Same | |
| JP3889608B2 (en) | Thermally conductive material and method for producing the same | |
| CN114834105B (en) | High-thermal conductivity diamond carbon fiber composite material and preparation method thereof | |
| TW201631116A (en) | A manufacturing method for cold pressing graphite heat conductive component | |
| JP2018098349A (en) | Heat conduction sheet, manufacturing method of heat conduction sheet, and heat radiation device | |
| JP2003033997A (en) | Method for manufacturing laminated sheet | |
| CN215712764U (en) | Heat conduction double-sided tape of aluminium foil substrate |