WO2021246397A1 - 二液硬化型熱伝導性グリース用組成物、熱伝導性グリース、および電子機器 - Google Patents
二液硬化型熱伝導性グリース用組成物、熱伝導性グリース、および電子機器 Download PDFInfo
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- 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
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- C08L83/00—Compositions 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; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
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- C08K3/38—Boron-containing compounds
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
- C10M169/044—Mixtures of base-materials and additives the additives being a mixture of non-macromolecular and macromolecular compounds
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/12—Polysiloxanes containing silicon bound to hydrogen
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- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/20—Polysiloxanes containing silicon bound to unsaturated aliphatic groups
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- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/28—Nitrogen-containing compounds
- C08K2003/282—Binary compounds of nitrogen with aluminium
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/382—Boron-containing compounds and nitrogen
- C08K2003/385—Binary compounds of nitrogen with boron
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- C08K2201/001—Conductive additives
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- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/061—Carbides; Hydrides; Nitrides
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
- C10M2227/04—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions having a silicon-to-carbon bond, e.g. organo-silanes
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/043—Siloxanes with specific structure containing carbon-to-carbon double bonds
- C10M2229/0435—Siloxanes with specific structure containing carbon-to-carbon double bonds used as base material
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/055—Particles related characteristics
- C10N2020/06—Particles of special shape or size
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- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/055—Particles related characteristics
- C10N2020/061—Coated particles
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/14—Electric or magnetic purposes
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- C—CHEMISTRY; METALLURGY
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- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/14—Electric or magnetic purposes
- C10N2040/17—Electric or magnetic purposes for electric contacts
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- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/10—Semi-solids; greasy
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
- H01L23/373—Cooling facilitated by selection of materials for the device or materials for thermal expansion adaptation, e.g. carbon
- H01L23/3737—Organic materials with or without a thermoconductive filler
Definitions
- the present invention relates to a composition for a two-component curable heat conductive grease, a heat conductive grease, and an electronic device.
- heat-generating electronic components such as CPUs (central processing units) of personal computers
- Their calorific value reaches about 20 times that of an iron.
- a metal heat sink or housing is used for cooling, and a heat conductive material is used to efficiently transfer heat from heat-generating electronic components to a cooling unit such as a heat sink or housing.
- the reason for using this heat conductive material is that when a heat-generating electronic component and a heat sink are brought into contact with each other without the heat conductive material, air is present at the interface and the heat conduction is impaired. It becomes. Therefore, heat is efficiently transferred by having a heat conductive material exist between the heat-generating electronic component and the heat sink instead of the air existing at the interface.
- the heat conductive powder is filled in the heat curable resin, and the heat conductive pad or the heat conductive sheet formed into a sheet, and the fluid resin is filled with the heat conductive powder and applied.
- heat conductive greases that can be made thinner, phase change type heat conductive materials that soften or fluidize at the operating temperature of heat-generating electronic parts, and the like.
- the thermal conductivity of the thermally conductive grease can be improved, but the thermal conductivity is insulating.
- the thermal conductivity is insulating.
- a large amount of powder such as alumina, aluminum nitride, or silica, which is an insulating filler, is mixed to improve the thermal conductivity, the insulating property can be ensured, but the viscosity of the thermally conductive grease does not increase significantly, so that during use. It becomes difficult to apply.
- Patent Document 1 describes a thermally conductive grease containing two types of fine powder aluminum powder and fine powder alumina as essential components in order to reduce heat resistance
- Patent Document 2 describes metallic aluminum, aluminum nitride and A thermally conductive grease containing zinc oxide as an essential component has been proposed, but the presence or absence of insulating property is not mentioned.
- Patent Document 3 by optimizing the blending amount of the metal powder with respect to the liquid silicone and the blending amount of the zinc oxide powder, a thermally conductive silicone grease composition having excellent thermal conductivity and electrical insulation can be obtained. Is described.
- zinc oxide powder has a large specific surface area, and when it is highly filled in liquid silicone, its viscosity increases, which causes a problem that the coated surface becomes worse.
- the present invention has been made in view of the above problems, and is a composition for a two-component curable thermal conductive grease having low viscosity, excellent coatability, and both high thermal conductivity and electrical insulation. And the purpose is to provide electronic devices using it.
- the present inventors have found that in a two-component curable type heat conductive grease composition, a metal aluminum powder having a specific average particle size and heat having a specific average particle size are used. It has been found that the above-mentioned problems can be solved by mixing the conductive filler with an appropriate mixing ratio, and the present invention has been made.
- the present invention is as follows.
- the first agent is 100 parts by weight of liquid resin (A-1), 140 parts by weight to 560 parts by weight of metallic aluminum (B-1) having an average particle size of 15 to 100 ⁇ m, aluminum oxide, aluminum nitride, and nitride.
- the second agent is 100 parts by weight of liquid resin (A-2), 140 parts by weight to 560 parts by weight of metallic aluminum (B-2) having an average particle size of 15 to 100 ⁇ m, aluminum oxide, aluminum nitride, and nitrided material. It comprises one or more thermally conductive fillers (C-2) selected from the group consisting of boron and having an average particle size in the range of 0.3-10 ⁇ m. At least one of the thermally conductive filler (C-1) or at least one of the thermally conductive filler (C-2) is an average grain of at least one selected from the group consisting of aluminum oxide, aluminum nitride, and boron nitride.
- a first thermally conductive filler (C-1-1) or a first thermally conductive filler (C-2-1) having a diameter of 0.3 to 1.5 ⁇ m is contained.
- a composition for a two-component curable heat conductive grease [2]
- the liquid resin (A-1) has two or more alkenyl groups in the molecule and has a viscosity of 50 to 3000 mPa ⁇ s at 25 ° C. and a shear rate of 10 s-1 (A-1-1).
- the hydrosilyl addition reaction catalyst (D-1) contains a platinum compound catalyst.
- the liquid resin (A-2) has two or more alkenyl groups in the molecule and has a viscosity of 50 to 3000 mPa ⁇ s at 25 ° C. and a shear rate of 10 s-1 (A-2-1). ), And a polyorganosiloxane (A-2-2) having 3 or more Si—H groups in the molecule.
- the composition for a two-component curable heat conductive grease according to [1] or [2].
- [4] The total number of moles of alkenyl groups of the liquid resin (A-1) and the liquid resin (A-2) contained in the first agent and the second agent, and the liquid resin contained in the second agent.
- the ratio of (A-2) to the number of moles of Si—H groups is 0.1 to 5.0.
- the viscosities of the first agent and the second agent at 25 ° C. and a shear rate of 10s- 1 are 20 Pa ⁇ s to 300 Pa ⁇ s.
- [6] The composition for a two-component curable heat conductive grease according to any one of [1] to [5] is obtained by curing the first agent and the second agent. Thermally conductive grease.
- the thermal conductivity is 0.5 W / mK or more, and the dielectric breakdown voltage per 1 mm thickness is 1 kV or more.
- the heating element and the metal housing are arranged via the thermally conductive grease according to [6] or [7]. Electronics.
- a composition for a two-component curable heat conductive grease which has low viscosity and excellent coatability, and has both high heat conductivity and electrical insulation, a heat conductive grease, and an electronic device using the same. can do.
- the present embodiment will be described in detail, but the present invention is not limited thereto, and various modifications can be made without departing from the gist thereof. Is.
- composition for a two-component curable heat conductive grease of the present embodiment includes a first agent and a second agent.
- the first agent is 100 parts by weight of liquid resin (A-1), 140 parts by weight to 560 parts by weight of metallic aluminum (B-1) having an average particle size of 15 to 100 ⁇ m, aluminum oxide, aluminum nitride, and boron nitride.
- B-1 metallic aluminum
- C-1 thermally conductive fillers
- D-1 a catalyst for hydrosilyl addition reaction
- Other components may be included if necessary.
- the second agent is 100 parts by weight of liquid resin (A-2), 140 parts by weight to 560 parts by weight of metallic aluminum (B-2) having an average particle size of 15 to 100 ⁇ m, aluminum oxide, aluminum nitride, and Includes one or more thermally conductive fillers (C-2) selected from the group consisting of boron nitride and having an average particle size in the range of 0.3-10 ⁇ m, and optionally other components. You may be.
- At least one of the heat conductive filler (C-1) contained in the first agent or the heat conductive filler (C-2) contained in the second agent is aluminum oxide, aluminum nitride, and At least one selected from the group consisting of boron nitride, a first heat conductive filler (C-1-1) or a first heat conductive filler (C-) having an average particle size of 0.3 to 1.5 ⁇ m. 2-1) is included.
- a thermally conductive filler having an average particle size of 0.3 to 1.5 ⁇ m contained in the first agent is called a first thermally conductive filler (C-1-1), and the average particle size contained in the second agent is 0.
- the heat conductive filler of .3 to 1.5 ⁇ m is called the first heat conductive filler (C-2-1).
- the viscosity of the first agent at 25 ° C. and a shear rate of 10s- 1 is preferably 20 to 300 Pa ⁇ s, more preferably 20 to 250 Pa ⁇ s, still more preferably 20 to 200 Pa ⁇ s, and more. More preferably, it is 20 to 150 Pa ⁇ s. Since the viscosity of the first agent is 20 Pa ⁇ s or more, even when the heat conductive grease is used vertically, it is possible to suppress the dripping of the heat conductive grease until the curing reaction. Handleability tends to be improved. Further, when the viscosity of the first agent is 300 Pa ⁇ s or less, the coatability when the first agent and the second agent are mixed by a static mixer tends to be further improved.
- the viscosity of the second agent at 25 ° C. and a shear rate of 10s- 1 is preferably 20 to 300 Pa ⁇ s, more preferably 20 to 250 Pa ⁇ s, still more preferably 20 to 200 Pa ⁇ s, and more. More preferably, it is 20 to 150 Pa ⁇ s. Since the viscosity of the second agent is 20 Pa ⁇ s or more, even when the heat conductive grease is used vertically, it is possible to suppress the dripping of the heat conductive grease until the curing reaction. Handleability tends to be improved. Further, when the viscosity of the second agent is 300 Pa ⁇ s or less, the coatability when the first agent and the second agent are mixed by a static mixer tends to be further improved.
- the viscosity of the first agent and the second agent at 25 ° C. and a shear rate of 10s- 1 is preferably 20 Pa ⁇ s to 300 Pa ⁇ s, more preferably 20 Pa ⁇ s to 250 Pa ⁇ s. It is more preferably 20 Pa ⁇ s to 200 Pa ⁇ s, and even more preferably 20 Pa ⁇ s to 150 Pa ⁇ s.
- the liquid resin (A-1) and (A-2) are not particularly limited, and examples thereof include silicone resin, epoxy resin, acrylic resin, urethane resin, and phenol resin. Among these, silicone resin is preferable in terms of heat resistance and flexibility.
- the liquid resins (A-1) and (A-2) may be used alone or in combination of two or more.
- the term "liquid” means a liquid state in which the resin alone has fluidity under normal temperature and pressure.
- an addition reaction type silicone resin that is liquid at room temperature is preferable.
- the addition reaction type silicone resin is not particularly limited, and examples thereof include polyorganosiloxane having two or more alkenyl groups in the molecule and polyorganosiloxane having three or more Si—H groups in the molecule. ..
- the alkenyl group contained in the polyorganosiloxane is preferably a vinyl group.
- the first agent preferably contains one of these polyorganosiloxanes as the liquid resin (A-1), and more preferably contains a polyorganosiloxane having an alkenyl group.
- the second agent preferably contains one of these polyorganosiloxanes as the liquid resin (A-2), more preferably contains a polyorganosiloxane having a Si—H group, and a polyorgano having an alkenyl group. It is more preferable to contain both siloxane and polyorganosiloxane having a Si—H group.
- the bonding position of the alkenyl group is not particularly limited, and it can be bonded to the side chain and / or the terminal of the polyorganosiloxane.
- the number of alkenyl groups in the polyorganosiloxane having an alkenyl group is not particularly limited as long as it is 2 or more, but is preferably 2 to 10, and more preferably 2 to 5. When the number of alkenyl groups is within the above range, the change in hardness of the obtained thermally conductive grease at a high temperature is more suppressed, and the viscosity is decreased, so that the coatability tends to be further improved.
- the alkenyl group content of the polyorganosiloxane having an alkenyl group is preferably 0.10 to 2.0 mol / kg, more preferably 0.10 to 1.0 mol / kg, and further preferably 0. It is 10 to 0.6 mol / kg.
- the alkenyl group content is within the above range, the change in hardness of the obtained thermally conductive grease at a high temperature is more suppressed, and the viscosity is decreased, so that the coatability tends to be further improved.
- the alkenyl group content is also referred to as a vinyl group content.
- the bonding position of the Si—H group is not particularly limited, and it can be bonded to the side chain and / or the terminal of the polyorganosiloxane.
- the number of Si—H groups in the polyorganosiloxane having Si—H groups is not particularly limited as long as it is 3 or more, but is preferably 3 to 60, more preferably 10 to 50, and further preferably 25 to 25. 45. When the number of Si—H groups is within the above range, the change in hardness of the obtained thermally conductive grease at a high temperature is further suppressed, and the viscosity is decreased, so that the coatability tends to be further improved.
- the Si—H group content of the polyorganosiloxane having a Si—H group is preferably 1.0 to 15 mol / kg, more preferably 3.0 to 12 mol / kg, and further preferably 5. It is 0 to 10 mol / kg.
- the Si—H group content is within the above range, the change in hardness of the obtained thermally conductive grease at a high temperature is further suppressed, and the viscosity is decreased, so that the coatability tends to be further improved.
- the polyorganosiloxane having an alkenyl group in the side chain may have, for example, a structural unit represented by the following formula (1). Further, the polyorganosiloxane having a Si—H group in the side chain may have, for example, a structural unit represented by the following formula (2).
- R is independently, for example, a methyl group, an ethyl group, a propyl group, a hexyl group, an octyl group, a decyl group, a dodecyl group, a tetradecyl group, a hexadecyl group, an octadecyl group and the like.
- Alkyl group such as cyclopentyl group and cyclohexyl group; aryl group such as phenyl group and trill group; aralkyl group such as 2-phenylethyl group and 2-methyl-2-phenylethyl group; 3,3,3 -Shows a halogenated hydrocarbon group such as a trifluoropropyl group, a 2- (perfluorobutyl) ethyl group, a 2- (perfluorooctyl) ethyl group, and a p-chlorophenyl group.
- a halogenated hydrocarbon group such as a trifluoropropyl group, a 2- (perfluorobutyl) ethyl group, a 2- (perfluorooctyl) ethyl group, and a p-chlorophenyl group.
- R an alkyl group and an aryl group are preferable, and a methyl group, a phenyl group, and an alkyl group having 6 to 18 carbon atoms are more preferable.
- n indicates the number of repetitions of the structural unit. n can be about the same as the number of alkenyl groups or Si—H groups that the polyorganosiloxane has in the side chain.
- the liquid resin (A-1) has a polyorganosiloxane (A-) having two or more alkenyl groups in the molecule and having a viscosity of 50 to 3000 mPa ⁇ s at 25 ° C. and a shear rate of 10 s-1. It is preferable to include 1-1). Further, the liquid resin (A-2) has at least two or more alkenyl groups in the molecule, and has a viscosity of 50 to 3000 mPa ⁇ s at 25 ° C. and a shear rate of 10s-1 (A-2-).
- A-2-2 a polyorganosiloxane having at least 3 or more Si—H groups at both ends or side chains.
- the viscosities of the polyorganosiloxanes (A-1-1) and (A-2-1) at 25 ° C. and a shear rate of 10s- 1 are preferably 50 to 3000 mPa ⁇ s, more preferably 50 to 1000 mPa ⁇ s, respectively. It is s, more preferably 50 to 500 mPa ⁇ s.
- the viscosities of the polyorganosiloxanes (A-1-1) and (A-2-1) are 50 mPa ⁇ s or more, the change in hardness of the obtained thermally conductive grease at a high temperature tends to be further suppressed.
- the viscosity of the polyorganosiloxane (A-2-2) at 25 ° C. and a shear rate of 10s- 1 is preferably 10 to 1000 mPa ⁇ s, more preferably 10 to 500 mPa ⁇ s, and even more preferably 10. It is ⁇ 200 mPa ⁇ s.
- the viscosity of the polyorganosiloxane (A-2-2) is 10 mPa ⁇ s or more, the change in hardness of the obtained thermally conductive grease at a high temperature tends to be further suppressed.
- the viscosity of the polyorganosiloxane (A-2-2) is 1000 mPa ⁇ s or less, the viscosity of the obtained thermally conductive grease tends to decrease, and the coatability tends to be further improved.
- the first agent contains a polyorganosiloxane having a Si—H group, the viscosity of the polyorganosiloxane can be the same as that of the polyorganosiloxane (A-2-2).
- the viscosity of each component contained in the liquid resins (A-1) and (A-2) can be measured by a conventional method using a viscometer.
- the content of the liquid resin (A-1) or (A-2) is preferably 2.0 to 25% by mass, respectively, with respect to the total amount of the first agent or the second agent, and more preferably 4. It is 0 to 18% by mass, more preferably 6.0 to 13% by mass.
- the content of the liquid resin (A-1) or (A-2) is within the above range, the change in hardness of the obtained thermally conductive grease at high temperature is further suppressed, and the viscosity is reduced, so that the coating property is coatable. Tends to improve.
- the content of the polyorganosiloxane (A-1-1) or (A-2-1) is preferably 70 to 70, respectively, with respect to the total amount of the liquid resin (A-1) or (A-2). It is 100% by mass, more preferably 80 to 100% by mass, and even more preferably 90 to 100% by mass.
- the content of the polyorganosiloxane (A-1-1) or (A-2-1) is within the above range, the change in hardness of the obtained thermally conductive grease at high temperature is further suppressed, and the viscosity is reduced. By doing so, the coatability tends to be further improved.
- the content of the polyorganosiloxane having a Si—H group in the second agent is a poly having an alkenyl group.
- the amount is preferably 0.5 to 15 parts by weight, more preferably 1.5 to 10 parts by weight, still more preferably 2 with respect to a total of 100 parts by weight of the organosiloxane and the polyorganosiloxane having a Si—H group. It is 5.5 to 5.0 parts by weight.
- the ratio of 2) to the number of moles of Si—H groups is preferably 0.1 to 5.0, more preferably 1.0 to 4.0, and even more preferably 1.5 to 3.5. Is.
- the above ratio is 0.1 or more, the curability of the thermally conductive grease tends to be further improved.
- the ratio is 5.0 or less, the embrittlement of the thermally conductive grease is further suppressed, and a suitable elastic body tends to be obtained.
- the average particle size of the metallic aluminum (B-1) and (B-2) is 15 to 100 ⁇ m, preferably 20 to 80 ⁇ m, more preferably 20 to 60 ⁇ m, and further preferably 20 to 40 ⁇ m, respectively. Is. When the average particle size of the metallic aluminum (B-1) and (B-2) is 15 ⁇ m or more, the thermal conductivity of the obtained thermally conductive grease can be improved.
- the storage stability of the obtained thermally conductive grease becomes better, and the liquid resin (A-1) and the liquid resin (A-1) and Separation of (A-2) and metallic aluminum (B-1) and (B-2) is further suppressed.
- the average particle diameters of metallic aluminum (B-1) and (B-2) are median diameters and can be measured by the method described in Examples. Further, the metallic aluminum (B-1) and (B-2) may be the same or different.
- the metallic aluminum (B-1) and (B-2) one type may be used alone, or two or more types having different average particle sizes may be used.
- a plurality of types of metallic aluminum (B-1) and (B-2) are used, all of them are included in the above range. Therefore, for example, even if metallic aluminum having an average particle size of less than 15 ⁇ m and metallic aluminum having an average particle size of more than 100 ⁇ m are mixed, the mixed metallic aluminum is the metallic aluminum (B-1) of the present embodiment and the metallic aluminum. It does not correspond to (B-2).
- the shapes of the metallic aluminum (B-1) and (B-2) are not particularly limited, and examples thereof include a spherical shape and an indefinite shape. Of these, a spherical shape is preferable. By having such a shape, the viscosity tends to be further lowered while improving the filling amount of the metallic aluminum (B-1) and (B-2).
- the content of the metallic aluminum (B-1) or (B-2) is 140 to 560 parts by weight, preferably 140 to 560 parts by weight, respectively, with respect to 100 parts by weight of the liquid resin (A-1) or (A-2). It is 200 to 500 parts by weight, more preferably 200 to 400 parts by weight.
- the content of the metallic aluminum (B-1) or (B-2) is 140 parts by weight or more, the thermal conductivity of the obtained thermally conductive grease is further improved.
- the content of the metallic aluminum (B-1) or (B-2) is 560 parts by weight or less, the insulating property of the heat conductive grease is further improved.
- the volume ratio of the metallic aluminum (B-1) or (B-2) is the sum of the thermally conductive filler (C-1) and the metallic aluminum (B-1), or the thermally conductive filler (C-). 2) is preferably 5 to 70% by volume, more preferably 15 to 50% by volume, still more preferably 20 to 40% by volume, based on the total amount of the metallic aluminum (B-2). ..
- the volume ratio of the metallic aluminum (B-1) or (B-2) is within the above range, the thermal conductivity of the thermally conductive grease is further improved, the viscosity is further lowered, and the coatability is further improved. It tends to improve.
- the thermally conductive fillers (C-1) and (C-2) are at least one selected from the group consisting of aluminum oxide, aluminum nitride, and boron nitride.
- the heat conductive fillers (C-1) and (C-2) those having different materials may be used alone or in combination of two or more. Among these, it is preferable to contain at least aluminum oxide.
- the heat conductive filler (C-1) and / or (C-2) can be made of metallic aluminum (B-1) and / or. Alternatively, it enters the gap of (B-2) and the thermal conductivity of the obtained thermally conductive grease is further improved.
- the average particle size of the thermally conductive fillers (C-1) and (C-2) is 0.30 to 10 ⁇ m, preferably 0.40 to 7.0 ⁇ m, respectively.
- the heat conductive fillers (C-1) and / or (C-2) are made of metallic aluminum (B). -1) and / or (B-2) can easily enter the gap.
- the average particle size of the heat conductive fillers (C-1) and (C-2) is 0.30 ⁇ m or more, the viscosity of the heat conductive grease is lowered and the coatability is further improved.
- the average particle size of the heat conductive fillers (C-1) and (C-2) is 10 ⁇ m or less, they can enter the gaps between the metallic aluminum (B-1) and / or (B-2) and are highly filled. Therefore, the thermal conductivity of the thermally conductive grease is further improved.
- heat conductive fillers (C-1) and (C-2) one type may be used alone, or two or more types having different average particle sizes or materials may be used.
- thermally conductive fillers (C-1) and (C-2) all of them shall be included in the above range. Therefore, for example, even if aluminum oxide having an average particle size of less than 0.30 ⁇ m and aluminum oxide having an average particle size of more than 10 ⁇ m are mixed, the mixed aluminum oxide is the heat conductive filler (C) of the present embodiment. -1) and (C-2) do not apply.
- the average particle size of the thermally conductive fillers (C-1) and (C-2) is a median diameter, and can be measured by the method described in Examples. Further, the thermally conductive fillers (C-1) and (C-2) may be the same or different.
- the heat conductive filler (C-1) is a first heat conductive filler (C-1-1) having an average particle size of 0.30 to 1.5 ⁇ m, and an average particle size of 1.6 to 3.5 ⁇ m. It may contain at least one of the second heat conductive filler (C-1-2) and the third heat conductive filler (C-1-3) having an average particle size of 3.7 to 10 ⁇ m. Among these, it is preferable to include the first heat conductive filler (C-1-1), and the first heat conductive filler (C-1-1) and the second heat conductive filler (C-1-2). , And a third thermally conductive filler (C-1-3) are more preferable. As a result, the viscosity of the thermally conductive grease is lowered, the coatability is further improved, and the thermal conductivity tends to be further improved.
- the heat conductive filler (C-2) is a first heat conductive filler (C-2-1) having an average particle size of 0.30 to 1.5 ⁇ m and an average particle size of 1.6 to 3.5 ⁇ m. It may contain at least one of the second heat conductive filler (C-2-2) and the third heat conductive filler (C-2-3) having an average particle size of 3.7 to 10 ⁇ m. Among these, it is preferable to include the first heat conductive filler (C-2-1), the first heat conductive filler (C-2-1) and the second heat conductive filler (C-2-2). , And a third thermally conductive filler (C-2-3) are more preferable. As a result, the viscosity of the thermally conductive grease is lowered, the coatability is further improved, and the thermal conductivity tends to be further improved.
- At least one of the heat conductive filler (C-1) contained in the first agent or the heat conductive filler (C-2) contained in the second agent is the first heat conductive filler. (C-1-1) or the first thermally conductive filler (C-2-1) is included.
- the first agent and / or the second agent contains the first thermally conductive filler, the viscosity of the thermally conductive grease is lowered, the coatability is further improved, and the thermal conductivity is further improved.
- the content of the first heat conductive filler (C-1-1) or (C-2-1) is preferably 100 parts by weight of the liquid resin (A-1) or (A-2), respectively. It is 10 to 400 parts by weight, more preferably 50 to 300 parts by weight, still more preferably 100 to 250 parts by weight.
- the content of the first heat conductive filler (C-1-1) or (C-2-1) is within the above range, the viscosity of the heat conductive grease is lowered, the coatability is further improved, and the coatability is further improved. Thermal conductivity tends to be higher.
- the content of the second heat conductive filler (C-1-2) or (C-2-2) is preferably 100 parts by weight of the liquid resin (A-1) or (A-2), respectively. It is 50 to 700 parts by weight, more preferably 100 to 500 parts by weight, and further preferably 150 to 450 parts by weight.
- the content of the second heat conductive filler (C-1-2) or (C-2-2) is within the above range, the viscosity of the heat conductive grease is lowered, the coatability is further improved, and the coatability is further improved. Thermal conductivity tends to be higher.
- the content of the third heat conductive filler (C-1-3) or (C-2-3) is preferably 100 parts by weight of the liquid resin (A-1) or (A-2), respectively. It is 200 to 900 parts by weight, more preferably 300 to 800 parts by weight, and further preferably 400 to 700 parts by weight.
- the content of the third heat conductive filler (C-1-3) or (C-2-3) is within the above range, the viscosity of the heat conductive grease is lowered, the coatability is further improved, and the coatability is further improved. Thermal conductivity tends to be higher.
- the shapes of the heat conductive fillers (C-1) and (C-2) are not particularly limited, and examples thereof include a spherical shape and an indefinite shape. Of these, a spherical shape is preferable. By having such a shape, the viscosity tends to be further lowered while improving the filling amount of the thermally conductive fillers (C-1) and (C-2).
- the content of the thermally conductive filler (C-1) or (C-2) is preferably 300 to 1800 parts by weight, respectively, with respect to 100 parts by weight of the liquid resin (A-1) or (A-2). It is more preferably 400 to 1700 parts by weight, further preferably 700 to 1500 parts by weight, and even more preferably 800 to 1250 parts by weight.
- the content of the thermally conductive filler (C-1) or (C-2) is 300 parts by weight or more, the gap between the metallic aluminum (B-1) and / or (B-2) can be filled. .
- the thermal conductivity of the obtained thermally conductive grease tends to be further improved.
- the content of the heat conductive filler (C-1) or (C-2) is 1800 parts by weight or less, the viscosity of the obtained heat conductive grease is further lowered, and the coatability tends to be further improved. It is in.
- the catalyst for the hydrosilyl addition reaction (D-1) is not particularly limited, and examples thereof include a platinum compound catalyst, a rhodium compound catalyst, and a palladium compound catalyst. Of these, a platinum compound catalyst is preferable. By using such a catalyst for hydrosilyl addition reaction (D-1), the curability of the liquid resins (A-1) and (B-1) tends to be further improved.
- the platinum compound catalyst is not particularly limited, and examples thereof include simple substance platinum, platinum compounds, and platinum-supported inorganic powders.
- the platinum compound is not particularly limited, and examples thereof include platinum chloride acid, a platinum-olefin complex, a platinum-alcohol complex, and a platinum coordination compound.
- the platinum-supported inorganic powder is not particularly limited, and examples thereof include platinum-supported alumina powder, platinum-supported silica powder, and platinum-supported carbon powder.
- the platinum compound catalyst may be blended alone when preparing the first agent, or may be blended in a state of being mixed in advance with another component, for example, a liquid resin (A-1).
- the content of the hydrosilyl addition reaction catalyst (D-1) is preferably 0.1 to 500 ppm, more preferably 0.1 to 500 ppm, based on 100 parts by weight of the total of the liquid resins (A-1) and (A-2). It is 1.0 to 400 ppm, more preferably 10 to 200 ppm.
- the content of the hydrosilyl addition reaction catalyst (D-1) is within the above range, the curability of the liquid resins (A-1) and (B-1) tends to be further improved.
- the first agent and the second agent are additives such as organosilanes other than the liquid resins (A-1) and (A-2), colorants, reaction retarders, etc., if necessary.
- E-1) and (E-2) may be contained, respectively.
- the organosilane is not particularly limited, and examples thereof include organosilanes represented by the following general formula (3).
- organosilanes represented by the following general formula (3) By using such an organosilane, the wettability of the liquid resins (A-1) and (A-2) with respect to the thermally conductive fillers (C-1) and (C-2) is further improved, and the viscosity is increased. As it decreases, the thermal conductivity tends to improve.
- R 1 is an independently alkyl group having 1 to 15 carbon atoms
- R 2 is an independently saturated or unsaturated monovalent hydrocarbon group having 1 to 8 carbon atoms.
- R 3 is an independently alkyl group having 1 to 6 carbon atoms, a is 1 to 3, b is 0 to 2, and a + b is 1 to 3).
- R 1 is an independently alkyl group having 1 to 15 carbon atoms, and is not particularly limited. For example, a methyl group, an ethyl group, a propyl group, a hexyl group, a nonyl group, and a decyl group. , Dodecyl group, tetradecyl group and the like. Among these, R 1 is preferably an alkyl group having 6 to 12 carbon atoms.
- R 2 is a saturated or unsaturated monovalent hydrocarbon group having 1 to 8 carbon atoms, and is not particularly limited.
- an alkyl group such as a methyl group, an ethyl group, a propyl group, a hexyl group, or an octyl group
- Cycloalkyl groups such as cyclopentyl group and cyclohexyl group
- alkenyl groups such as vinyl group and allyl group
- aryl groups such as phenyl group and trill group
- aralkyl groups such as 2-phenylethyl group and 2-methyl-2-phenylethyl group.
- halogenated hydrocarbon groups such as 3,3,3-trifluoropropyl group, 2- (perfluorobutyl) ethyl group, 2- (perfluorooctyl) ethyl group and p-chlorophenyl group.
- R 3 is one or more alkyl groups having 1 to 6 carbon atoms such as a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, and a hexyl group, and is preferably a methyl group or an ethyl group. ..
- A is an integer of 1 to 3, preferably 1.
- b is an integer of 0 to 2, preferably 0.
- a + b is an integer of 1 to 3, preferably 1.
- the content of organosilane contained in the first agent or the second agent is the total amount of metallic aluminum (B-1) or (B-2) and the heat conductive filler (C-1) or (C-2). With respect to 100 parts by weight, each is preferably 0.01 to 10 parts by weight, and more preferably 0.1 to 5.0 parts by weight. When the content of organosilane is within the above range, the wettability can be effectively improved.
- the content of the colorant contained in the first agent or the second agent is preferably 0.05 to 0.2 parts by weight, respectively, with respect to a total of 100 parts by weight of the first agent or the second agent.
- the reaction retarder is not particularly limited, and examples thereof include 1-ethynyl-1-cyclohexanol.
- the content of the reaction retarder is preferably 0.05 to 0.2 parts by weight, respectively, with respect to a total of 100 parts by weight of the first agent or the second agent.
- the heat conductive grease of the present embodiment is obtained by curing the first agent and the second agent of the composition for two-component curable heat conductive grease. "Curing” also includes semi-cured first and second agents.
- a composition for a two-component curable heat conductive grease in a state in which the hydrosilylation reaction is partially promoted in advance can also be used as the heat conductive grease.
- the thermal conductivity of the heat conductive grease at 25 ° C. is preferably 0.5 W / mK or more, more preferably 1.0 W / mK or more, and further preferably 2.0 W / mK or more.
- the thermal conductivity is 0.5 W / mK or more, good heat dissipation can be obtained for electronic components.
- Thermal conductivity can be measured by the method described in the examples.
- the dielectric breakdown voltage per 1 mm of the thickness of the heat conductive grease is preferably 1.0 kV or more, more preferably 1.5 kV or more. When the dielectric breakdown voltage is 1.0 kV or more, sufficient electrical insulation is ensured.
- the breakdown voltage can be measured according to JIS C2110.
- a heating element and a metal housing are arranged via the heat conductive grease.
- the heating element is not particularly limited, and examples thereof include motors, battery packs, circuit boards used in in-vehicle power supply systems, power transistors, electronic components that generate heat such as microprocessors, and the like. Among these, electronic components used in in-vehicle power supply systems for in-vehicle use are preferable.
- the metal housing is not particularly limited, and examples thereof include a heat sink configured for heat dissipation and heat absorption.
- ⁇ A Liquid resin> a-1: Vinyl group-containing polyorganosiloxane (manufactured by Elchem Silicones Co., Ltd .: product name "621V100", 25 ° C., viscosity at shear rate 10s -1 : 100 mPa ⁇ s, vinyl group content: 0.33 mol / kg, molecule Average number of vinyl groups in: 2) a-2: SiH group-containing polyorganosiloxane (manufactured by Elchem Silicones Co., Ltd .: product name "626V25H7", viscosity at 25 ° C., shear rate of 10s-1 : 25mPa ⁇ s, Si—H group content: 7 mol / kg, molecule Average number of Si—H groups in: 36)
- ⁇ B Metallic aluminum>
- b-1 Average particle size: 25 ⁇ m, spherical, manufactured by Hikari Material Mfg. Co., Ltd., product name "Al-99.7% (-38 ⁇ m)”
- b-2 Average particle size: 20 ⁇ m, spherical, manufactured by Toyo Aluminum K.K., product name "TFH-A20P”
- b-3 Average particle size: 48 ⁇ m, spherical, manufactured by Hikari Material Mfg. Co., Ltd., product name "Al-99.7% (-63 ⁇ m)”
- b-4 Average particle size: 66 ⁇ m, spherical, manufactured by Hikari Material Mfg. Co., Ltd., product name “Al-99.7% (-150 ⁇ m)”
- ⁇ C Thermally conductive filler>
- c-1 Aluminum oxide, average particle size: 5 ⁇ m, spherical, manufactured by Sumitomo Chemical Co., Ltd., product name "AA-5"
- c-2 Aluminum oxide, average particle size: 2 ⁇ m, spherical, manufactured by Sumitomo Chemical Co., Ltd., product name “AA-2”
- c-3 Aluminum oxide, average particle size: 0.5 ⁇ m, spherical, manufactured by Sumitomo Chemical Co., Ltd., product name "AA-0.5” c-4: Aluminum nitride, average particle size: 5 ⁇ m, spherical, manufactured by MARUWA, product name "A-05-F” c-5: Aluminum nitride, average particle size: 1 ⁇ m, spherical, manufactured by MARUWA, product name "A-01-F” c-6: Boron nitride, average particle size: 5 ⁇ m, scaly, manufactured by Denka, product
- Examples 1 to 10 and Comparative Examples 1 to 3 Each raw material was blended in a 2L remix device at the ratios shown in Tables 1 to 3 and kneaded under reduced pressure at room temperature to prepare the first agent and the second agent of each heat conductive grease composition.
- the description regarding the amount of each component in the table means parts by weight unless otherwise specified.
- the average particle size of the metallic aluminum B and the thermally conductive filler C was measured using a "laser diffraction type particle size distribution measuring device SALD-20" manufactured by Shimadzu Corporation.
- SALD-20 Laser diffraction type particle size distribution measuring device
- 50 mL of pure water and 5 g of metallic aluminum B or thermally conductive filler C to be measured were added to a glass beaker, stirred with a spatula, and then dispersed with an ultrasonic cleaner for 10 minutes. Prepared.
- the dispersion liquid of the metal aluminum B or the heat conductive filler C which had been subjected to the dispersion treatment was added drop by drop to the sampler part of the apparatus using a dropper, and the measurement was carried out when the absorbance was stable.
- D50 medium diameter
- the viscosity of the thermally conductive grease obtained by mixing the first agent and the second agent in a volume ratio of 1: 1 with a static mixer that is, the mixed viscosity of the first agent and the second agent is also measured in the same manner as above. did.
- the first agent and the second agent were filled in a two-component syringe (capacity 25 cc ⁇ 2, manufactured by MIX PAC), respectively, and a hand gun and a static mixer were attached and discharged at 25 ° C. Based on the state of discharge, the applicability when the first agent and the second agent were mixed was evaluated. The evaluation criteria are shown below. ⁇ : Can be discharged more easily than the static mixer ⁇ : Can be discharged from the static mixer, but requires a certain amount of force (about 10 kgf) ⁇ : Cannot be discharged from the static mixer
- the thermal conductivity of the heat conductive grease was measured by a method according to ASTM D5470 using a resin material thermal resistance measuring device (manufactured by Hitachi Technology Co., Ltd.). Specifically, the mixture obtained by mixing the first agent and the second agent in a static mixer at a volume ratio of 1: 1 is obtained by mixing the first agent and the second agent in a thickness of 0.2 mm, 0.5 mm and 1.0 mm and having an area of 10 mm ⁇ 10 mm. It was sandwiched between copper jigs and the thermal resistance value of each thickness was measured.
- the composition for two-component curable heat conductive grease of the present invention is a composition for forming a heat conductive grease by mixing and curing a first agent and a second agent, and is a composition for forming a heat conductive grease, a heating element and a metal casing. It has industrial applicability as a material for thermally conductive grease that is used by thermally bonding to a body.
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Abstract
Description
〔1〕
第一剤と、第二剤と、を備え、
前記第一剤が、液状樹脂(A-1)100重量部と、平均粒径が15~100μmの金属アルミニウム(B-1)140重量部~560重量部と、酸化アルミニウム、窒化アルミニウム、及び窒化ホウ素からなる群より選択され、平均粒径が0.3~10μmの範囲に含まれる一又は複数の熱伝導性フィラー(C-1)と、ヒドロシリル付加反応用触媒(D-1)と、を含み、
前記第二剤が、液状樹脂(A-2)100重量部と、平均粒径が15~100μmの金属アルミニウム(B-2)140重量部~560重量部と、酸化アルミニウム、窒化アルミ、及び窒化ホウ素からなる群より選択され、平均粒径が0.3~10μmの範囲に含まれる一又は複数の熱伝導性フィラー(C-2)と、を含み、
前記熱伝導性フィラー(C-1)又は前記熱伝導性フィラー(C-2)の少なくとも一方が、酸化アルミニウム、窒化アルミニウム、及び窒化ホウ素からなる群より選択される少なくとも1種以上の、平均粒径が0.3~1.5μmの第1熱伝導性フィラー(C-1-1)又は第1熱伝導性フィラー(C-2-1)を、含む、
二液硬化型熱伝導性グリース用組成物。
〔2〕
前記液状樹脂(A-1)が、分子中に2個以上のアルケニル基を有し、25℃、せん断速度10s-1における粘度が50~3000mPa・sであるポリオルガノシロキサン(A-1-1)を含み、
前記ヒドロシリル付加反応用触媒(D-1)が、白金化合物触媒を含む、
〔1〕に記載の二液硬化型熱伝導性グリース用組成物。
〔3〕
前記液状樹脂(A-2)が、分子中に2個以上のアルケニル基を有し、25℃、せん断速度10s-1における粘度が50~3000mPa・sであるポリオルガノシロキサン(A-2-1)、及び
分子中に3個以上のSi-H基を有するポリオルガノシロキサン(A-2-2)を含む、
〔1〕又は〔2〕に記載の二液硬化型熱伝導性グリース用組成物。
〔4〕
前記第一剤及び前記第二剤に含まれる、前記液状樹脂(A-1)及び前記液状樹脂(A-2)のアルケニル基のモル数の総和と、前記第二剤に含まれる前記液状樹脂(A-2)のSi-H基のモル数との比が、0.1~5.0である、
〔1〕~〔3〕のいずれか一項に記載の二液硬化型熱伝導性グリース用組成物。
〔5〕
前記第一剤および前記第二剤の、25℃、せん断速度10s-1における粘度が、20Pa・s~300Pa・sである、
〔1〕~〔4〕のいずれか一項に記載の二液硬化型熱伝導性グリース用組成物。
〔6〕
〔1〕~〔5〕のいずれか一項に記載の二液硬化型熱伝導性グリース用組成物が有する、第一剤と第二剤を硬化させてなる、
熱伝導性グリース。
〔7〕
熱伝導率が、0.5W/mK以上であり、かつ
厚み1mmあたりの絶縁破壊電圧が、1kV以上である、
〔6〕に記載の熱伝導性グリース。
〔8〕
発熱体と金属筐体とが、〔6〕又は〔7〕に記載の熱伝導性グリースを介して配置された、
電子機器。
本実施形態の二液硬化型熱伝導性グリース用組成物は、第一剤と、第二剤と、を備える。第一剤は、液状樹脂(A-1)100重量部と、平均粒径が15~100μmの金属アルミニウム(B-1)140重量部~560重量部と、酸化アルミニウム、窒化アルミ、及び窒化ホウ素からなる群より選択され、平均粒径が0.3~10μmの範囲に含まれる一又は複数の熱伝導性フィラー(C-1)と、ヒドロシリル付加反応用触媒(D-1)と、を含み、必要に応じてその他の成分を含んでいてもよい。また、第二剤は、液状樹脂(A-2)100重量部と、平均粒径が15~100μmの金属アルミニウム(B-2)140重量部~560重量部と、酸化アルミニウム、窒化アルミ、及び窒化ホウ素からなる群より選択され、平均粒径が0.3~10μmの範囲に含まれる一又は複数の熱伝導性フィラー(C-2)と、を含み、必要に応じてその他の成分を含んでいてもよい。
液状樹脂(A-1)及び(A-2)としては、特に制限されないが、例えば、シリコーン樹脂、エポキシ樹脂、アクリル樹脂、ウレタン樹脂、フェノール樹脂が挙げられる。これらの中では、耐熱性、柔軟性の点でシリコーン樹脂が好ましい。液状樹脂(A-1)及び(A-2)は1種単独で用いても、2種以上を併用してもよい。なお、「液状」とは、常温常圧下において、樹脂単独で流動性を有する液体状態であることをいう。
金属アルミニウム(B-1)及び(B-2)の平均粒径は、それぞれ、15~100μmであり、好ましくは20~80μmであり、より好ましくは20~60μmであり、さらに好ましくは20~40μmである。金属アルミニウム(B-1)及び(B-2)の平均粒径が15μm以上であることにより、得られる熱伝導性グリースの熱伝導率を向上することができる。また、金属アルミニウム(B-1)及び(B-2)の平均粒径が100μm以下であることにより、得られる熱伝導性グリースの貯蔵安定性がより良好となり、液状樹脂(A-1)及び(A-2)と金属アルミニウム(B-1)及び(B-2)との分離がより抑制される。
熱伝導性フィラー(C-1)及び(C-2)は、酸化アルミニウム、窒化アルミ、及び窒化ホウ素からなる群より選択される少なくとも1種以上である。熱伝導性フィラー(C-1)及び(C-2)は、それぞれ、材質の異なるものを1種単独で用いても、2種以上を併用してもよい。このなかでも、少なくとも酸化アルミニウムを含むことが好ましい。このような熱伝導性フィラー(C-1)及び(C-2)を用いることにより、熱伝導性フィラー(C-1)及び/又は(C-2)が金属アルミニウム(B-1)及び/又は(B-2)の隙間に入り込み、得られる熱伝導性グリースの熱伝導率がより向上する。
ヒドロシリル付加反応用触媒(D-1)としては、特に制限されないが、例えば、白金化合物触媒、ロジウム化合物触媒、パラジウム化合物触媒が挙げられる。このなかでも、白金化合物触媒が好ましい。このようなヒドロシリル付加反応用触媒(D-1)を用いることにより、液状樹脂(A-1),(B-1)の硬化性がより向上する傾向にある。
第一剤および第二剤は、上記成分に加え、必要に応じて、上記液体樹脂(A-1)及び(A-2)以外のオルガノシラン、着色剤等、反応遅延剤等の添加剤(E-1)及び(E-2)をそれぞれ含有してもよい。
R1 aR2 bSi(OR3)4-(a+b) (3)
(R1は、各々独立して、炭素数1~15のアルキル基であり、R2は、各々独立して、炭素数1~8の飽和又は不飽和の一価の炭化水素基であり、R3は、各々独立して、炭素数1~6のアルキル基であり、aは1~3であり、bは0~2であり、a+bは1~3である。)
本実施形態の熱伝導性グリースは、上記二液硬化型熱伝導性グリース用組成物が有する、第一剤と第二剤を硬化させてなるものである。「硬化」には、第一剤と第二剤を半硬化させたものも含まれる。例えば、予め部分的にヒドロシリル化反応を進ませた状態の二液硬化型熱伝導性グリース用組成物を熱伝導性グリースとして使用することもできる。
本実施形態の電子機器は、発熱体と金属筐体とが、上記熱伝導性グリースを介して配置されたものである。
a-1:ビニル基含有ポリオルガノシロキサン(エルケム シリコーンズ社製:製品名「621V100」、25℃、せん断速度10s-1における粘度:100mPa・s、ビニル基含有量:0.33mol/kg、分子中の平均ビニル基数:2個)
a-2:SiH基含有ポリオルガノシロキサン(エルケム シリコーンズ社製:製品名「626V25H7」、25℃、せん断速度10s-1における粘度:25mPa・s、Si-H基含有量:7mol/kg、分子中の平均Si-H基数:36個)
b-1:平均粒径:25μm、球状、ヒカリ素材工業社製、製品名「Al-99.7%(-38μm)」
b-2:平均粒径:20μm、球状、東洋アルミニウム社製、製品名「TFH-A20P」
b-3:平均粒径:48μm、球状、ヒカリ素材工業社製、製品名「Al-99.7%(-63μm)」
b-4:平均粒径:66μm、球状、ヒカリ素材工業社製、製品名「Al-99.7%(-150μm)」
c-1:酸化アルミニウム、平均粒径:5μm、球状、住友化学社製、製品名「AA-5」
c-2:酸化アルミニウム、平均粒径:2μm、球状、住友化学社製、製品名「AA-2」
c-3:酸化アルミニウム、平均粒径:0.5μm、球状、住友化学社製、製品名「AA-0.5」
c-4:窒化アルミニウム、平均粒径:5μm、球状、MARUWA社製、製品名「A-05-F」
c-5:窒化アルミニウム、平均粒径:1μm、球状、MARUWA社製、製品名「A-01-F」
c-6:窒化ホウ素、平均粒径:5μm、鱗片状、デンカ社製、製品名「HGP」
c-7:酸化亜鉛、平均粒径:0.5μm、球状、本荘ケミカル社製、製品名「酸化亜鉛1種」
白金化合物触媒:エルケム社製、製品名「シリコリース キャタ 12070」
e-1:n-デシルトリメトキシシラン(ダウ東レ社製、製品名「Z-6210」)
各原料を、2Lトリミックス装置に表1~表3に示す割合で配合し、常温にて減圧混練し、各熱伝導性グリース用組成物の第一剤および第二剤をそれぞれ調製した。なお、表中における各成分の量に関する記載は、特に断りがない限り、重量部を意味する。
金属アルミニウムBおよび熱伝導性フィラーCの平均粒径は、島津製作所製「レーザー回折式粒度分布測定装置SALD-20」を用いて測定を行った。評価サンプルは、ガラスビーカーに50mLの純水と測定する金属アルミニウムB又は熱伝導性フィラーCを5g添加して、スパチュラを用いて撹拌し、その後超音波洗浄機で10分間、分散処理を行って調製した。分散処理を行った金属アルミニウムB又は熱伝導性フィラーCの分散液を、スポイトを用いて、装置のサンプラ部に一滴ずつ添加して、吸光度が安定したところで測定を行った。なお、平均粒径としては、D50(メジアン径)を採用した。
ポリオルガノシロキサンa-1,a-2、第一剤、第二剤、および熱伝導性グリースの各粘度は、回転式レオメータ「HANKE MARSIII」(Thermo FisherScientific社製)を用いて測定した。粘度は、直径35mmφのパラレルプレートを用い、ギャップ0.5mm、温度25℃、せん断速度10s-1の条件で得られた値を用いた。また、第一剤と第二剤をスタティックミキサーで1:1の体積比で混合して得られた熱伝導性グリースの粘度、すなわち第一剤と第二剤の混合粘度も上記と同様に測定した。
第一剤および第二剤を、2液型のシリンジ(容量25cc×2、MIX PAC社製)にそれぞれ充填し、ハンドガン、スタティックミキサーを取り付けて25℃にて吐出した。その吐出の状態に基づいて、第一剤および第二剤を混合した時の塗布性を評価した。評価基準を以下に示す。
○:スタティックミキサーより容易に吐出可能
△:スタティックミキサーより吐出可能だが、ある程度の力(およそ10Kgf)が必要であった
×:スタティックミキサーより吐出不可能
熱伝導性グリースの熱伝導率は、樹脂材料熱抵抗測定装置(株式会社日立テクノロジー社製)を用い、ASTM D5470に準拠した方法により測定した。具体的には、第一剤及び第二剤をスタティックミキサーで1:1の体積比で混合して得られた混合物を、厚み0.2mm、0.5mm及び1.0mmで面積10mm×10mmの銅治具に挟み込み、それぞれの厚みの熱抵抗値を測定した。熱抵抗値(℃/W)を縦軸とし、熱伝導性樹脂組成物の厚さ(mm)を横軸として得られる直線の傾きLより、以下の式より熱伝導性樹脂組成物の熱伝導率を算出した。
熱伝導率 (W/mK)=10/L
絶縁破壊電圧のサンプルとして、第一剤および第二剤をスタティックミキサーで体積比1:1で混合後、厚み1mmの状態で成形し24時間保持して硬化反応を進行させ、熱伝導性グリース硬化体を得た。次に、得られた熱伝導性グリース硬化体を50mm角に打ち抜き、25mmφの分銅を熱伝導性グリース硬化体に乗せ、JIS C2101に準拠した方法で、前記分銅に0kVから0.2kV(DC)ごとに電圧を印加した。各電圧で20秒間保持できたら、その電圧はクリアと判定し、クリアの最大値を絶縁破壊電圧とした。
Claims (8)
- 第一剤と、第二剤と、を備え、
前記第一剤が、液状樹脂(A-1)100重量部と、平均粒径が15~100μmの金属アルミニウム(B-1)140重量部~560重量部と、酸化アルミニウム、窒化アルミニウム、及び窒化ホウ素からなる群より選択され、平均粒径が0.3~10μmの範囲に含まれる一又は複数の熱伝導性フィラー(C-1)と、ヒドロシリル付加反応用触媒(D-1)と、を含み、
前記第二剤が、液状樹脂(A-2)100重量部と、平均粒径が15~100μmの金属アルミニウム(B-2)140重量部~560重量部と、酸化アルミニウム、窒化アルミ、及び窒化ホウ素からなる群より選択され、平均粒径が0.3~10μmの範囲に含まれる一又は複数の熱伝導性フィラー(C-2)と、を含み、
前記熱伝導性フィラー(C-1)又は前記熱伝導性フィラー(C-2)の少なくとも一方が、酸化アルミニウム、窒化アルミニウム、及び窒化ホウ素からなる群より選択される少なくとも1種以上の、平均粒径が0.3~1.5μmの第1熱伝導性フィラー(C-1-1)又は第1熱伝導性フィラー(C-2-1)を、含む、
二液硬化型熱伝導性グリース用組成物。 - 前記液状樹脂(A-1)が、分子中に2個以上のアルケニル基を有し、25℃、せん断速度10s-1における粘度が50~3000mPa・sであるポリオルガノシロキサン(A-1-1)を含み、
前記ヒドロシリル付加反応用触媒(D-1)が、白金化合物触媒を含む、
請求項1に記載の二液硬化型熱伝導性グリース用組成物。 - 前記液状樹脂(A-2)が、分子中に2個以上のアルケニル基を有し、25℃、せん断速度10s-1における粘度が50~3000mPa・sであるポリオルガノシロキサン(A-2-1)、及び
分子中に3個以上のSi-H基を有するポリオルガノシロキサン(A-2-2)を含む、
請求項1又は2に記載の二液硬化型熱伝導性グリース用組成物。 - 前記第一剤及び前記第二剤に含まれる、前記液状樹脂(A-1)及び前記液状樹脂(A-2)のアルケニル基のモル数の総和と、前記第二剤に含まれる前記液状樹脂(A-2)のSi-H基のモル数との比が、0.1~5.0である、
請求項1~3のいずれか一項に記載の二液硬化型熱伝導性グリース用組成物。 - 前記第一剤および前記第二剤の、25℃、せん断速度10s-1における粘度が、20Pa・s~300Pa・sである、
請求項1~4のいずれか一項に記載の二液硬化型熱伝導性グリース用組成物。 - 請求項1~5のいずれか一項に記載の二液硬化型熱伝導性グリース用組成物が有する、第一剤と第二剤を硬化させてなる、
熱伝導性グリース。 - 熱伝導率が、0.5W/mK以上であり、かつ
厚み1mmあたりの絶縁破壊電圧が、1kV以上である、
請求項6に記載の熱伝導性グリース。 - 発熱体と金属筐体とが、請求項6又は7に記載の熱伝導性グリースを介して配置された、
電子機器。
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2022026651A (ja) * | 2020-07-31 | 2022-02-10 | 長野県 | 熱伝導性樹脂組成物及びその成形物 |
WO2023190439A1 (ja) * | 2022-03-29 | 2023-10-05 | デンカ株式会社 | 二液硬化型組成物セット、硬化物及び電子機器 |
WO2024171646A1 (ja) * | 2023-02-15 | 2024-08-22 | デンカ株式会社 | 二液硬化型組成物セット、硬化物及び電子機器 |
WO2024242157A1 (ja) * | 2023-05-23 | 2024-11-28 | デンカ株式会社 | 放熱グリース |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005170971A (ja) | 2003-12-08 | 2005-06-30 | Denki Kagaku Kogyo Kk | グリース |
JP2007099821A (ja) | 2005-09-30 | 2007-04-19 | Momentive Performance Materials Japan Kk | 熱伝導性シリコーングリース組成物及びそれを用いた半導体装置 |
JP2010248669A (ja) | 2009-04-17 | 2010-11-04 | Teijin Techno Products Ltd | 制振材および制振複合材 |
JP2013124257A (ja) * | 2011-12-13 | 2013-06-24 | Shin-Etsu Chemical Co Ltd | 熱伝導性シリコーン組成物及びその硬化物 |
WO2020080256A1 (ja) * | 2018-10-15 | 2020-04-23 | デンカ株式会社 | 二液硬化型組成物セット、熱伝導性硬化物及び電子機器 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070219312A1 (en) * | 2006-03-17 | 2007-09-20 | Jennifer Lynn David | Silicone adhesive composition and method for preparing the same |
WO2010104534A1 (en) * | 2009-03-12 | 2010-09-16 | Dow Corning Corporation | Thermal interface materials and mehtods for their preparation and use |
CN106928725A (zh) * | 2015-12-31 | 2017-07-07 | 蓝星有机硅(上海)有限公司 | 导电的可固化的有机硅橡胶 |
JP6844297B2 (ja) * | 2017-02-14 | 2021-03-17 | 荒川化学工業株式会社 | 組成物、硬化物、熱伝導塗料、熱伝導シート、ポッティング剤および電子部品 |
-
2021
- 2021-06-01 WO PCT/JP2021/020817 patent/WO2021246397A1/ja active Application Filing
- 2021-06-01 US US18/008,052 patent/US20230272218A1/en active Pending
- 2021-06-01 EP EP21816974.6A patent/EP4163962A4/en active Pending
- 2021-06-01 CN CN202180040086.9A patent/CN115698222A/zh active Pending
- 2021-06-01 JP JP2022528839A patent/JP7565354B2/ja active Active
- 2021-06-04 TW TW110120402A patent/TW202208604A/zh unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005170971A (ja) | 2003-12-08 | 2005-06-30 | Denki Kagaku Kogyo Kk | グリース |
JP2007099821A (ja) | 2005-09-30 | 2007-04-19 | Momentive Performance Materials Japan Kk | 熱伝導性シリコーングリース組成物及びそれを用いた半導体装置 |
JP2010248669A (ja) | 2009-04-17 | 2010-11-04 | Teijin Techno Products Ltd | 制振材および制振複合材 |
JP2013124257A (ja) * | 2011-12-13 | 2013-06-24 | Shin-Etsu Chemical Co Ltd | 熱伝導性シリコーン組成物及びその硬化物 |
WO2020080256A1 (ja) * | 2018-10-15 | 2020-04-23 | デンカ株式会社 | 二液硬化型組成物セット、熱伝導性硬化物及び電子機器 |
Non-Patent Citations (1)
Title |
---|
See also references of EP4163962A4 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2022026651A (ja) * | 2020-07-31 | 2022-02-10 | 長野県 | 熱伝導性樹脂組成物及びその成形物 |
JP7242019B2 (ja) | 2020-07-31 | 2023-03-20 | 長野県 | 熱伝導性樹脂組成物及びその成形物 |
WO2023190439A1 (ja) * | 2022-03-29 | 2023-10-05 | デンカ株式会社 | 二液硬化型組成物セット、硬化物及び電子機器 |
WO2024171646A1 (ja) * | 2023-02-15 | 2024-08-22 | デンカ株式会社 | 二液硬化型組成物セット、硬化物及び電子機器 |
WO2024242157A1 (ja) * | 2023-05-23 | 2024-11-28 | デンカ株式会社 | 放熱グリース |
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TW202208604A (zh) | 2022-03-01 |
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US20230272218A1 (en) | 2023-08-31 |
CN115698222A (zh) | 2023-02-03 |
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