CN112538268A - Preparation method and device of heat conduction gasket with high heat conductivity coefficient - Google Patents
Preparation method and device of heat conduction gasket with high heat conductivity coefficient Download PDFInfo
- Publication number
- CN112538268A CN112538268A CN202011423162.8A CN202011423162A CN112538268A CN 112538268 A CN112538268 A CN 112538268A CN 202011423162 A CN202011423162 A CN 202011423162A CN 112538268 A CN112538268 A CN 112538268A
- Authority
- CN
- China
- Prior art keywords
- heat conduction
- extrusion
- alumina
- carbon fibers
- spherical
- 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.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
-
- 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
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
-
- 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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2483/00—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
- C08J2483/04—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
- C08K3/00—Use of inorganic substances as compounding ingredients
- 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
-
- 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
- C08K3/28—Nitrogen-containing compounds
- C08K2003/282—Binary compounds of nitrogen with aluminium
-
- 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
- C08K3/38—Boron-containing compounds
- C08K2003/382—Boron-containing compounds and nitrogen
- C08K2003/385—Binary compounds of nitrogen with boron
-
- 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
- C08K2201/004—Additives being defined by their length
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention discloses a preparation method and a device of a heat conduction gasket with high heat conduction coefficient, which comprises heat conduction particles, high polymer, spherical alumina, polyhedral alumina, spherical aluminum nitride, spherical boron nitride particles, carbon fibers, double-component silica gel, a catalyst, an inhibitor, an extrusion container, a sheet forming device and an extrusion die. According to the preparation method and the device of the high-thermal-conductivity-coefficient heat-conducting gasket, through repeated diameter-changing treatment, the directionality of carbon fibers in a matrix is obviously improved, a sheet-shaped former is additionally arranged at the tail end of an extruded complex, the extruded complex is flaky, the directionality of the carbon fibers cannot be changed, a macroscopic interface can be effectively reduced in a subsequent compaction process, and the density of a block body is improved.
Description
Technical Field
The invention relates to the technical field of thermal interface materials, in particular to a method and a device for preparing a heat conduction gasket with high heat conductivity coefficient.
Background
1. At present, along with the increasing miniaturization of the physical size of electronic components, the power density is increased explosively, which causes that a large amount of heat generated inside the electronic components cannot be dissipated in time, in addition, the contact surface between a chip and a radiator has surface roughness, the two interfaces cannot be completely attached, air exists in a gap, and the air can be approximately regarded as a heat insulating material, so that the contact thermal resistance is greatly improved, the thermal interface material is used for solving the problem, common thermal interface materials comprise silicone grease, phase change metal sheets, heat conduction gaskets and the like, the silicone grease has good filling property, the air between the interfaces can be well removed, but the silicone grease is a polymer, and the thermal conductivity coefficient of the polymer is usually lower than 0.5W/mK due to the disordered arrangement of molecular chains; the phase-change metal material has high heat conductivity coefficient, but because the metal has rigidity, the phase-change metal material does not occupy advantages in structural design and reduction of interface thermal resistance; the heat conduction gasket is formed by adding heat conduction particles into an inorganic polymer to form a heat conduction path, so that the heat conduction gasket has good flexibility and higher heat conduction coefficient, and the heat conduction gasket with high heat conduction coefficient is prepared under the condition of not influencing the mechanical property;
2. in the prior art, the invention patent with the publication number of CN100548099C utilizes a magnetic field of more than 1T to carry out orientation treatment on carbon fibers, the method is expensive in equipment, and can only carry out orientation before the carbon fibers are compounded with polymers, so that a heat conduction gasket with high carbon fiber content, controllable thickness and large area is difficult to obtain, the invention patent with the publication number of CN103975429A utilizes an extrusion method to realize qualitative arrangement of the carbon fibers, in the method, extruded strip-shaped composites are arranged, because the column-shaped composites have certain fluidity before solidification, fixed column shape can not be kept in the stacking process, the condition that each part in a block is not uniform can occur, in the pressing process, redundant interfaces can occur due to excessive column-shaped composites which independently exist, the compactness of the formed gasket is influenced, at present, a carbon fiber orientation device which is reformed by utilizing an electrostatic flocking machine is reported, the device requires high voltage (>8KV), has potential safety hazard, and is difficult to obtain highly-oriented carbon fibers because the attachment sites on the attachment polar plate are insufficient in the later stage of orientation of the carbon fibers.
Disclosure of Invention
The present invention is directed to a method and an apparatus for manufacturing a thermal conductive gasket with high thermal conductivity, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the preparation method of the high-thermal-conductivity-coefficient heat-conducting gasket comprises the following steps of:
A. weighing two components of the two-component silica gel according to a mass ratio of 1:1, wherein the total mass of the two components is 15 parts, the total mass of 50-100 parts of alumina, aluminum nitride and boron nitride particles, 0-50 parts of carbon fibers, 0.15 part of catalyst and 0.1 part of inhibitor are mixed and stirred by a dispersion machine until the mixture is uniformly stirred to form a dough-shaped composite powder;
B. putting the composite powder obtained in the step into an extrusion container (1) for extrusion, wherein in the process, carbon fibers in the composite powder generate variable-diameter motion through small holes one by one, and the carbon fibers are gradually oriented in the process;
C. b, installing a sheet-shaped forming device (2) at the outlet of the leftmost end of the extrusion container (1), and after the extrusion process in the step B is finished, enabling the composite powder to pass through the outlet of the sheet-shaped forming device (2) to obtain a composite material sheet layer with the thickness of 1mm and the width of 40 mm;
D. placing the composite material lamella obtained in the step into an extrusion die (3) for extrusion forming, placing the composite material lamella in a vacuum environment at room temperature for 30 minutes, heating the composite material lamella to 120-140 ℃, and baking the composite material lamella for 20-30 minutes to obtain a solidified block;
E. and cutting off the block body layer by layer according to a certain thickness along the end face of the solidified block body obtained in the step to obtain the heat conduction gasket with the required thickness.
Preferably, the spherical alumina has a particle size of 1um to 150 um.
Preferably, the polyhedral alumina is 1um to 100um polyhedral alumina.
Preferably, the carbon fiber is 50-500 um long.
Compared with the prior art, the invention has the beneficial effects that:
firstly, the method comprises the following steps: the technical scheme obviously improves the directionality of the carbon fiber in the matrix through multiple reducing treatments;
II, secondly: according to the scheme, the sheet-shaped former is additionally arranged at the tail end of the extruded complex body, so that the extruded complex body is in a sheet shape, the directionality of carbon fibers is not changed, a macroscopic interface can be effectively reduced in the subsequent compaction process, and the density of a block body is improved;
thirdly, the method comprises the following steps: by adopting the scheme, the heat conduction gasket with large area can be prepared on the basis of ensuring the directionality, namely, the required size can be obtained only by increasing the size of the die;
fourthly, the method comprises the following steps: among the heat conduction particle that this patent used, except carbon fiber, still used different particle diameters and the great spherical alumina of particle size distribution range, multiaspect alumina, aluminum nitride, boron nitride, the heat conduction particle of big particle diameter influences heat conduction gasket mechanical properties for the heat conduction particle of little particle diameter great, but because specific surface is little, the heat conduction particle of big particle diameter is better with the combination of base member, it is better to gasket coefficient of heat conductivity's improvement effect, the quality ratio of various particles has been adjusted to this patent, can satisfy mechanical properties in the assurance, the packing volume of increase particle, in order to construct more close heat conduction paths.
Fifthly: this scheme is pressing the knot mould that the in-process that becomes the block body was used with the piece complex body pressure knot and is independently designed, has following advantage: a. the cover plates used on the front side and the rear side are movable components, and the required size can be easily determined when the sheet-shaped composite bodies are stacked layer by layer; b. the upper cover plate is a movable component, the small iron blocks on the inner surface are connected with the large iron blocks on the outer surface through screws, the separation of the inner iron blocks and the outer iron blocks can be realized after the screws are unscrewed, and the downward movement of the inner iron blocks is realized through a shaft with threads; c. the steel plate with the thickness of 5mm is adopted for manufacturing the die, so that the complex can be easily separated from the die after being cured (the bonding force between the heat-conducting gasket and metal is poor compared with that between the heat-conducting gasket and a plastic ground), and the block body can be prevented from moving under the action of air pressure to change the due state in the process of removing bubbles;
drawings
FIG. 1 is a schematic view of the overall appearance of the squeeze container of the present invention;
FIG. 2 is a schematic view showing the overall appearance of the sheet forming apparatus of the present invention;
FIG. 3 is a schematic view of the overall appearance of the extrusion die of the present invention;
in the figure: 1. extruding the container; 2. a sheet-forming device; 3. and (5) extruding the die.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-3, an embodiment of the present invention is shown: a preparation method and a device of a high-thermal-conductivity gasket comprise thermal-conductivity particles, namely high-molecular polymer, spherical alumina, polyhedral alumina, spherical aluminum nitride, spherical boron nitride particles, carbon fibers, double-component silica gel, a catalyst, an inhibitor, an extrusion container, a sheet forming device and an extrusion die, and are characterized in that the preparation method of the high-thermal-conductivity gasket comprises the following steps:
A. weighing two components of the two-component silica gel according to a mass ratio of 1:1, wherein the total mass of the two components is 15 parts, the total mass of 50-100 parts of alumina, aluminum nitride and boron nitride particles, 0-50 parts of carbon fibers, 0.15 part of catalyst and 0.1 part of inhibitor are mixed and stirred by a dispersion machine until the mixture is uniformly stirred to form a dough-shaped composite powder;
B. putting the composite powder obtained in the step into an extrusion container 1 for extrusion, wherein in the process, carbon fibers in the composite powder generate variable-diameter motion through small holes one by one, and the carbon fibers are gradually oriented in the process;
C. b, installing a sheet-shaped forming device 2 at the outlet of the leftmost end of the extrusion container 1, and after the extrusion process in the step B is finished, enabling the composite powder to pass through the outlet of the sheet-shaped forming device 2 to obtain a composite material sheet layer with the thickness of 1mm and the width of 40 mm;
D. placing the composite material lamella obtained in the step into an extrusion die 3 for extrusion forming, placing the composite material lamella in a vacuum environment at room temperature for 30 minutes, then heating the composite material lamella to 120-140 ℃, and baking the composite material lamella for 20-30 minutes to obtain a solidified block;
E. and cutting off the block body layer by layer according to a certain thickness along the end face of the solidified block body obtained in the step to obtain the heat conduction gasket with the required thickness.
Further, spherical alumina having a particle diameter of 1 to 150um is used.
Further, the polyhedral alumina is 1 to 100um polyhedral alumina.
Further, the carbon fiber is 50 ~ 500um long carbon fiber.
Expansion scheme
1: the carbon fiber is replaced by strip graphite sheets or graphene fiber, the heat conductivity coefficient of the carbon fiber is generally about 700W/mk, but the heat conductivity coefficient of the multilayer graphene can reach more than 2000W/mk, the heat conductivity coefficient in the plane of the artificially synthesized graphite sheet can reach about 1600W/mk, and the heat conductivity of the artificially synthesized graphite sheet is far higher than that of the carbon fiber. Therefore, after the carbon fibers are replaced by the strip-shaped graphite flakes or graphene fibers with certain rigidity, the heat conducting gasket can achieve a high heat conducting coefficient after orientation can be realized;
2: and (3) growing materials on the surface of the carbon fiber to grow a dendritic high-heat-conductivity material, for example, growing vertical graphene on the surface of the carbon fiber, and then carrying out the orientation process on the modified carbon fiber. After modification, the probability of mutual contact of the dendritic products on the surfaces is greatly improved, the probability of forming a heat conduction passage in the heat conduction gasket is correspondingly improved, and the heat conduction performance of the gasket can be effectively improved;
3: the used heat conducting particles comprise more than 2 of polyhedral aluminum oxide, spherical aluminum oxide, aluminum nitride, boron nitride, carbon fibers, graphene and nano copper particles;
4: the base material used in the scheme is prepared double-component silica gel, but the base material is prepared by mixing vinyl silicone oil, hydrogen-containing silicone oil, an inhibitor, a catalyst and the like and can also be used for preparing the heat-conducting gasket;
5: six times of reducing treatment is used in the scheme, and the heat conducting gasket with good carbon fiber directionality is obtained. In the preparation process, the number of times of reducing is more than 2, and the ratio of reducing can obtain better effect within the range of 5-150%;
6: the extrusion die uses circular opening in this scheme, can guarantee that all directions atress is even. But other shapes (square, triangle, oval, etc.) can also obtain good carbon fiber orientation effect;
7: when the extrusion device and the compaction die are prepared, various metals such as stainless steel, aluminum alloy and the like with smooth surfaces can be selected as materials;
8: in the extrusion, the pressing may be performed by screw fastening, or by pneumatic or hydraulic means.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. A preparation method and a device of a heat conduction gasket with high heat conductivity coefficient comprise heat conduction particles, high polymer, spherical alumina, polyhedral alumina, spherical aluminum nitride, spherical boron nitride particles, carbon fibers, double-component silica gel, a catalyst, an inhibitor, an extrusion container, a sheet forming device and an extrusion die, and are characterized in that the preparation method of the heat conduction gasket with high heat conductivity coefficient comprises the following steps:
A. weighing two components of the two-component silica gel according to a mass ratio of 1:1, wherein the total mass of the two components is 15 parts, the total mass of 50-100 parts of alumina, aluminum nitride and boron nitride particles, 0-50 parts of carbon fibers, 0.15 part of catalyst and 0.1 part of inhibitor are mixed and stirred by a dispersion machine until the mixture is uniformly stirred to form a dough-shaped composite powder;
B. putting the composite powder obtained in the step into an extrusion container (1) for extrusion, wherein in the process, carbon fibers in the composite powder generate variable-diameter motion through small holes one by one, and the carbon fibers are gradually oriented in the process;
C. b, installing a sheet-shaped forming device (2) at the outlet of the leftmost end of the extrusion container (1), and after the extrusion process in the step B is finished, enabling the composite powder to pass through the outlet of the sheet-shaped forming device (2) to obtain a composite material sheet layer with the thickness of 1mm and the width of 40 mm;
D. placing the composite material lamella obtained in the step into an extrusion die (3) for extrusion forming, placing the composite material lamella in a vacuum environment at room temperature for 30 minutes, heating the composite material lamella to 120-140 ℃, and baking the composite material lamella for 20-30 minutes to obtain a solidified block;
E. and cutting off the block body layer by layer according to a certain thickness along the end face of the solidified block body obtained in the step to obtain the heat conduction gasket with the required thickness.
2. The method and apparatus for preparing a high thermal conductivity thermal pad according to claim 1, wherein: the spherical alumina is spherical alumina with the grain diameter of 1 um-150 um.
3. The method and apparatus for preparing a high thermal conductivity thermal pad according to claim 1, wherein: the polyhedral alumina is 1-100 um polyhedral alumina.
4. The method and apparatus for preparing a high thermal conductivity thermal pad according to claim 1, wherein: the carbon fiber is 50 ~ 500um long carbon fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011423162.8A CN112538268A (en) | 2020-12-08 | 2020-12-08 | Preparation method and device of heat conduction gasket with high heat conductivity coefficient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011423162.8A CN112538268A (en) | 2020-12-08 | 2020-12-08 | Preparation method and device of heat conduction gasket with high heat conductivity coefficient |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112538268A true CN112538268A (en) | 2021-03-23 |
Family
ID=75019369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011423162.8A Pending CN112538268A (en) | 2020-12-08 | 2020-12-08 | Preparation method and device of heat conduction gasket with high heat conductivity coefficient |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112538268A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113556925A (en) * | 2021-07-09 | 2021-10-26 | 常州富烯科技股份有限公司 | Heat-conducting gasket and preparation method thereof |
| CN115092920A (en) * | 2022-06-27 | 2022-09-23 | 常州富烯科技股份有限公司 | Graphene heat-conducting gasket and preparation method thereof |
| CN116622238A (en) * | 2023-04-04 | 2023-08-22 | 厦门斯研新材料技术有限公司 | Heat-conducting composite material and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103710494A (en) * | 2013-12-30 | 2014-04-09 | 江苏大学 | Ultrasonic based method and ultrasonic based device for reinforcing a small hole |
| DE102014225105A1 (en) * | 2014-12-08 | 2016-06-09 | Currenta Gmbh & Co.Ohg | Process for the mechanical treatment of carbon fibers |
| CN108690355A (en) * | 2018-06-26 | 2018-10-23 | 浙江三元电子科技有限公司 | A kind of flexibility heat exchange sheet and preparation method thereof |
| CN109354874A (en) * | 2018-09-17 | 2019-02-19 | 深圳市驭晟新能源科技有限公司 | A kind of preparation of new type silicone rubber heat-conducting pad and cutting process |
| CN109689119A (en) * | 2016-06-28 | 2019-04-26 | 陶氏环球技术有限责任公司 | Microporous membrane and the product being made from it |
| CN109777109A (en) * | 2017-11-14 | 2019-05-21 | 贵州升皇兴国际贸易有限公司 | A kind of preparation method of high thermal conductivity composite silica glue gasket |
| CN110181812A (en) * | 2019-06-28 | 2019-08-30 | 西北工业大学 | The 3D printing method of continuous carbon fibre honeycomb and its certainly perception and restoration methods |
| CN111103318A (en) * | 2019-12-11 | 2020-05-05 | 东莞烯事达新材料有限公司 | Method and system for testing thermal conductivity of low-dimensional material |
-
2020
- 2020-12-08 CN CN202011423162.8A patent/CN112538268A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103710494A (en) * | 2013-12-30 | 2014-04-09 | 江苏大学 | Ultrasonic based method and ultrasonic based device for reinforcing a small hole |
| DE102014225105A1 (en) * | 2014-12-08 | 2016-06-09 | Currenta Gmbh & Co.Ohg | Process for the mechanical treatment of carbon fibers |
| CN109689119A (en) * | 2016-06-28 | 2019-04-26 | 陶氏环球技术有限责任公司 | Microporous membrane and the product being made from it |
| CN109777109A (en) * | 2017-11-14 | 2019-05-21 | 贵州升皇兴国际贸易有限公司 | A kind of preparation method of high thermal conductivity composite silica glue gasket |
| CN108690355A (en) * | 2018-06-26 | 2018-10-23 | 浙江三元电子科技有限公司 | A kind of flexibility heat exchange sheet and preparation method thereof |
| CN109354874A (en) * | 2018-09-17 | 2019-02-19 | 深圳市驭晟新能源科技有限公司 | A kind of preparation of new type silicone rubber heat-conducting pad and cutting process |
| CN110181812A (en) * | 2019-06-28 | 2019-08-30 | 西北工业大学 | The 3D printing method of continuous carbon fibre honeycomb and its certainly perception and restoration methods |
| CN111103318A (en) * | 2019-12-11 | 2020-05-05 | 东莞烯事达新材料有限公司 | Method and system for testing thermal conductivity of low-dimensional material |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113556925A (en) * | 2021-07-09 | 2021-10-26 | 常州富烯科技股份有限公司 | Heat-conducting gasket and preparation method thereof |
| CN113556925B (en) * | 2021-07-09 | 2024-01-02 | 常州富烯科技股份有限公司 | Heat conduction gasket and preparation method thereof |
| CN115092920A (en) * | 2022-06-27 | 2022-09-23 | 常州富烯科技股份有限公司 | Graphene heat-conducting gasket and preparation method thereof |
| CN115092920B (en) * | 2022-06-27 | 2023-09-26 | 常州富烯科技股份有限公司 | Graphene heat conduction gasket and preparation method thereof |
| CN116622238A (en) * | 2023-04-04 | 2023-08-22 | 厦门斯研新材料技术有限公司 | Heat-conducting composite material and preparation method thereof |
| CN116622238B (en) * | 2023-04-04 | 2024-03-26 | 厦门斯研新材料技术有限公司 | Heat-conducting composite material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112538268A (en) | Preparation method and device of heat conduction gasket with high heat conductivity coefficient | |
| Wei et al. | Polymer composites with expanded graphite network with superior thermal conductivity and electromagnetic interference shielding performance | |
| CN106810877B (en) | Heat-conducting interface material and application thereof | |
| CN108886881B (en) | Electromagnetic wave absorbing thermally conductive sheet, method for producing electromagnetic wave absorbing thermally conductive sheet, and semiconductor device | |
| US8991028B2 (en) | Graphene nanoplatelet metal matrix | |
| KR100450831B1 (en) | Thermally conductive composite material | |
| CN106810876B (en) | Composite material with directionally arranged fillers and preparation method thereof | |
| WO2017143625A1 (en) | High thermal conductive composite material, thermal conductive sheet prepared from material, and preparation method therefor | |
| US20190241435A1 (en) | Graphite/graphene complex material, heat-collecting body, heat-transfer body, thermal radiation body and thermal radiation system | |
| CN109891577B (en) | Thermally conductive sheet and semiconductor device | |
| WO2018030430A1 (en) | Heat transfer sheet and method for producing same | |
| CN113150557A (en) | Silicon rubber composite material with directional arrangement and three-dimensional structure construction for improving heat conductivity, and preparation method and application thereof | |
| Chang et al. | A reduced percolation threshold of hybrid fillers of ball-milled exfoliated graphite nanoplatelets and AgNWs for enhanced thermal interface materials in high power electronics | |
| WO2021187609A1 (en) | Heat dissipation sheet and method for manufacturing heat dissipation sheet | |
| WO2019123253A1 (en) | Powder composition comprising first and second agglomerates of inorganic particles and polymer composition comprising a polymer and the powder composition | |
| US20240120254A1 (en) | Thermally-conductive sheet and electronic device | |
| Wang et al. | Facile fabrication of three-dimensional thermal conductive composites with synergistic effect of multidimensional fillers | |
| Ji et al. | Understanding the thermal impedance of silicone rubber/hexagonal boron nitride composites as thermal interface materials | |
| Song et al. | h-BN orientation degree on the thermal conductivity anisotropy of their silicone rubber composites: A quantitative study | |
| WO2018147228A1 (en) | Electromagnetic wave-suppressing heat transfer sheet, method for producing electromagnetic wave-suppressing heat transfer sheet, and semiconductor device | |
| WO2022176823A1 (en) | Heat conductive sheet | |
| Wang et al. | Magnetic-induced dynamically enhanced in-plane or out-of-plane thermal conductivity of BN/Ag NWs@ Ni/epoxy composites | |
| US20230227709A1 (en) | Flowable hardenable composition, thermally conductive composition, and electronic heat sink assembly including the same | |
| CN115895262B (en) | Vertical orientation structure thermal interface material and preparation method thereof | |
| CN111410939B (en) | Heat-conducting phase-change energy storage sheet and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210323 |
|
| RJ01 | Rejection of invention patent application after publication |