CN105762123A - RGO (Reduced Graphene Oxide) polymer radiating fin - Google Patents
RGO (Reduced Graphene Oxide) polymer radiating fin Download PDFInfo
- Publication number
- CN105762123A CN105762123A CN201610075806.6A CN201610075806A CN105762123A CN 105762123 A CN105762123 A CN 105762123A CN 201610075806 A CN201610075806 A CN 201610075806A CN 105762123 A CN105762123 A CN 105762123A
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- Prior art keywords
- coating
- polymer
- radiating fin
- graphene
- graphene oxide
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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
- H01L23/3735—Laminates or multilayers, e.g. direct bond copper ceramic substrates
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2204/00—Structure or properties of graphene
- C01B2204/20—Graphene characterized by its properties
- C01B2204/24—Thermal properties
Abstract
The invention relates to an RGO polymer radiating fin. The radiating fin comprises a polymer structure body and a graphene coating adhered to the polymer structure body. The polymer structure body is coated with a graphene oxide coating, and the graphene oxide coating is reduced to obtain the graphene coating via reduction reaction. According to the RGO polymer radiating fin, the graphene oxide coating is coated, and then the graphene coating is obtained via reduction; and the special molecular structure of the graphene oxide is utilized, the graphene oxide is dispersed in the coating more effectively, the adhesion force is higher, the firm, uniform and compact coating can be formed at the surface of the polymer radiating fin, and the graphene coating of excellent heat conduction performance can be obtained by reducing graphene oxide. The cost of manufacturing graphene oxide in large scale is lower, and the prepared radiating fin has higher cost performance. The radiating fin of the invention is longer in service life, and compared with a traditional metal or ceramic radiating fin, the radiating fin of the invention is thinner, easier to process and lower in cost.
Description
Technical field
The present invention relates to electronics and optoelectronic package field, more particularly, it relates to a kind of redox graphene polymer fin.
Background technology
The integration density of the chip such as microelectronics, photoelectron is more high, and operating rate is more fast, and performance is more good, and cost is more low.Improve the basic development rule that integrated level is microelectronics, photoelectronic industry.The channel length of current metal-oxide-semiconductor has been reduced to 14 nanometers, and the heat radiation of unit chip area also sharply increases, and becomes the major obstacle that chip integration improves further.And current heat sink material relies primarily on metal and pottery, heat conductivility can not meet the requirement of highly integrated chip, in the urgent need to the important breakthrough in radiation management system.On the other hand, along with wearable device, the fast development of the industries such as Internet of Things, it is desirable to the acquisition of information, process and broadcasting system are more frivolous, lower in cost, flexible even folding.
Therefore heat radiation is better, more frivolous, be more easy to processing, heat sink material lower in cost becomes bottleneck and the emphasis of development, polymeric material has low-density, low cost, the advantages such as method processing low-costly and in high volume such as injection moulding can be adopted, disclosure satisfy that above-mentioned frivolous and low cost demand, but heat dissipation characteristics has very big gap than metal and pottery.
In prior art, Graphene being coated in the material surface such as metal, engineering plastics to strengthen its heat dissipation characteristics, but directly sprayed on polymeric materials by Graphene, adhesiveness and adhesion durability are all poor.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of low cost, easily process, and the attachment of Graphene coating more firmly, redox graphene polymer fin that production efficiency is higher.
Technical scheme is as follows:
A kind of redox graphene polymer fin, including a polymer structure and the Graphene coating being attached on polymer structure, on polymer structure, first it is coated with graphite oxide ene coatings, then through reduction reaction, the reduction of graphite oxide ene coatings is obtained Graphene coating.
As preferably, the constituent material of polymer structure includes one or more compounds in engineering plastics, resin, nylon.
As preferably, by the microstructure changing polymer structure of foaming.
As preferably, the method for coating graphite oxide ene coatings includes hot spray process, czochralski method, or hot spray process and czochralski method are used alternatingly.
As preferably, the reaction temperature of reduction reaction is lower than the heat distortion temperature of polymer structure, and the reducing agent for reduction reaction does not corrode polymer structure.
Beneficial effects of the present invention is as follows:
Redox graphene polymer fin of the present invention, adopt first coating graphene oxide coating, the method carrying out again reducing prepares Graphene coating, make use of the molecular structure that graphene oxide is special, it is more conducive in coating and disperses, there is more firmly adhesion, it is simple to form firm, uniform, fine and close coating in polymer fin surface, obtain thermal conduction characteristic preferably Graphene coating again through redox graphene.Extensive manufacture graphene oxide is lower in cost simultaneously, makes the fin of preparation have the higher ratio of performance to price.Longer service life of the present invention, compared with traditional metal or ceramic radiating fin, more frivolous, easily process, and also lower in cost.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail.
The present invention is to solve in prior art, the deficiency existing for metal, ceramic radiating fin, it is provided that a kind of redox graphene polymer fin, including a polymer structure and the Graphene coating being attached on polymer structure.The material of polymer structure includes one or more in the polymer such as engineering plastics, resin, nylon, is manufactured by low cost processing methods such as injection mouldings, and is changed the microstructure of polymer structure by methods such as foaming.In the present embodiment, polymer structure selects engineering plastics, becomes foliaceous heat radiating fin structure by injection molding.
Graphene coating is first to be coated with graphite oxide ene coatings on polymer structure, obtains again through reduction reaction, it is possible to make to have between Graphene coating and polymer structure higher adhesiveness and durability.And longer service life of the present invention.Polymeric material has low-density, low cost, can adopt the advantages such as method processing low-costly and in high volume such as injection moulding, enable the invention to meet frivolous and low cost demand, remaining to keep efficient heat dispersion, heat dispersion is poor unlike metal, ceramic radiating fin simultaneously.
The present invention is first coated with graphite oxide ene coatings on polymer structure, then through reduction reaction, the reduction of graphite oxide ene coatings is obtained Graphene coating.In order to prevent in process of production, polymer structure being produced negative effect, the reaction temperature of reduction reaction requires the heat distortion temperature lower than polymer structure, and the reducing agent for reduction reaction does not corrode polymer structure.
In the present embodiment, for being coated with the preparation method of the graphene oxide coating forming graphite oxide ene coatings it is: graphene oxide powder is dissolved in the PVA mixed liquor with deionized water, forms graphene oxide coating.Specific as follows:
Graphene oxide powder is prepared to improve Hummers method: first chooses and has the high crystalline flake graphite of degree of crystallinity as raw material, utilizes strong acid to remove metal impurities, again through high-temperature process, other impurity is formed gaseous state and evaporates, obtain highly purified graphite.Finally, jet mill is utilized to carry out the broken of granule, it is thus achieved that graphite powder.
Assembling the reaction bulb of 500ml in ice-water bath, by 10 grams of above-mentioned graphite powders and 10 grams of sodium nitrates and 500ml concentrated sulphuric acid mix homogeneously, stirring is lower adds 50 grams of potassium hyperchlorates, and after uniformly, mark time adds 30 grams of potassium permanganate, stirs 24 hours.Removing ice bath, be slowly added to 400ml deionized water under stirring, temperature is increased to 96 DEG C, stirs 30min, adds 50ml hydrogen peroxide, makes solution yellowing.After 8000rpm20min is centrifugal, pH value is made to be 7 with 4% hydrochloric acid and deionized water wash.Vacuum filters, dried acquisition graphene oxide powder,
The preparation of graphene oxide coating: the graphene oxide powder of acquisition is dissolved in volume ratio PVA: forming graphene oxide coating in the mixed liquor of deionized water=5:7, the concentration of graphene oxide is 12%.
Graphene oxide coating is passed through the surface of the method polymer attached structure repeatedly sprayed, forms the fin that graphite oxide ene coatings covers.Spraying graphite oxide ene coatings includes hot spray process or czochralski method, or hot spray process and czochralski method are used alternatingly.
Polymer structure is not produced negative effect to realize reduction reaction, in the present embodiment, adopt hydrogen as reducing agent, by heat reduction graphene oxide in oxygen-free environment.Particularly as follows:
Being placed in the atmosphere of hydrogen of 5% concentration and heat to 180 DEG C, keep 24 hours by spraying graphene oxide coated polymeric structure, wherein, the diluent gas of hydrogen is nitrogen.By this reduction reaction, graphite oxide ene coatings is reduced into Graphene coating.
Above-described embodiment is intended merely to the explanation present invention, and is not used as limitation of the invention.As long as according to the technical spirit of the present invention, above-described embodiment is changed, modification etc. is all by the scope of the claims dropping on the present invention.
Claims (5)
1. a redox graphene polymer fin, it is characterized in that, including a polymer structure and the Graphene coating being attached on this structure, on polymer structure, first it is coated with graphite oxide ene coatings, then through reduction reaction, the reduction of graphite oxide ene coatings is obtained Graphene coating.
2. redox graphene polymer fin according to claim 1, it is characterised in that the constituent material of polymer structure includes one or more compounds in engineering plastics, resin, nylon.
3. redox graphene polymer fin according to claim 2, it is characterised in that by the microstructure changing polymer structure of foaming.
4. redox graphene polymer fin according to claim 1, it is characterised in that the method for coating graphite oxide ene coatings includes hot spray process, czochralski method, or hot spray process and czochralski method are used alternatingly.
5. redox graphene polymer fin according to claim 3, it is characterised in that the reaction temperature of reduction reaction is lower than the heat distortion temperature of polymer structure, and the reducing agent for reduction reaction does not corrode polymer structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610075806.6A CN105762123A (en) | 2016-02-03 | 2016-02-03 | RGO (Reduced Graphene Oxide) polymer radiating fin |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610075806.6A CN105762123A (en) | 2016-02-03 | 2016-02-03 | RGO (Reduced Graphene Oxide) polymer radiating fin |
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| CN105762123A true CN105762123A (en) | 2016-07-13 |
| CN105762123A8 CN105762123A8 (en) | 2016-08-17 |
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| CN201610075806.6A Pending CN105762123A (en) | 2016-02-03 | 2016-02-03 | RGO (Reduced Graphene Oxide) polymer radiating fin |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106311581A (en) * | 2016-08-19 | 2017-01-11 | 苏州思创源博电子科技有限公司 | Manufacturing method for efficient composite heat sink for electronic product |
| CN109318564A (en) * | 2018-09-10 | 2019-02-12 | 成都紫苑华光新材料科技有限公司 | A kind of method that the spraying of self assembly ultrasound prepares graphene heat conducting film |
| CN112676129A (en) * | 2019-10-18 | 2021-04-20 | 天津工业大学 | Graphene anticorrosive coating with layer assembly structure and preparation process thereof |
Citations (5)
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| CN101613098A (en) * | 2009-06-12 | 2009-12-30 | 中国科学院宁波材料技术与工程研究所 | A kind of solution phase preparation method of Graphene |
| CN103450674A (en) * | 2013-09-11 | 2013-12-18 | 上海大学 | Nylon 6/graphene nanometer composite material with high thermal conductivity and preparation method thereof |
| CN103553028A (en) * | 2013-10-24 | 2014-02-05 | 深圳市沃特新材料股份有限公司 | Graphene capable of being stably compounded with engineering plastics, and composite engineering plastics |
| CN104071784A (en) * | 2014-07-10 | 2014-10-01 | 中南林业科技大学 | Method for preparing graphene through reduction of oxidized graphene |
| CN104085143A (en) * | 2014-05-29 | 2014-10-08 | 深圳市铭晶科技有限公司 | Preparation method of composite heat conduction graphene film and composite heat conduction graphene film |
-
2016
- 2016-02-03 CN CN201610075806.6A patent/CN105762123A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101613098A (en) * | 2009-06-12 | 2009-12-30 | 中国科学院宁波材料技术与工程研究所 | A kind of solution phase preparation method of Graphene |
| CN103450674A (en) * | 2013-09-11 | 2013-12-18 | 上海大学 | Nylon 6/graphene nanometer composite material with high thermal conductivity and preparation method thereof |
| CN103553028A (en) * | 2013-10-24 | 2014-02-05 | 深圳市沃特新材料股份有限公司 | Graphene capable of being stably compounded with engineering plastics, and composite engineering plastics |
| CN104085143A (en) * | 2014-05-29 | 2014-10-08 | 深圳市铭晶科技有限公司 | Preparation method of composite heat conduction graphene film and composite heat conduction graphene film |
| CN104071784A (en) * | 2014-07-10 | 2014-10-01 | 中南林业科技大学 | Method for preparing graphene through reduction of oxidized graphene |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106311581A (en) * | 2016-08-19 | 2017-01-11 | 苏州思创源博电子科技有限公司 | Manufacturing method for efficient composite heat sink for electronic product |
| CN109318564A (en) * | 2018-09-10 | 2019-02-12 | 成都紫苑华光新材料科技有限公司 | A kind of method that the spraying of self assembly ultrasound prepares graphene heat conducting film |
| CN112676129A (en) * | 2019-10-18 | 2021-04-20 | 天津工业大学 | Graphene anticorrosive coating with layer assembly structure and preparation process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105762123A8 (en) | 2016-08-17 |
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| C53 | Correction of patent of invention or patent application | ||
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Correction item: Second applicant Correct: Xiamen Joywin Photoelectric Technology Co., Ltd. False: XIAMEN JUYING PHOTOELECTRIC TECHNOLOGY CO., LTD. Number: 28 Volume: 32 |
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| CI02 | Correction of invention patent application |
Correction item: Second applicant Correct: Xiamen Joywin Photoelectric Technology Co., Ltd. False: XIAMEN JUYING PHOTOELECTRIC TECHNOLOGY CO., LTD. Number: 28 Page: The title page Volume: 32 |
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Application publication date: 20160713 |
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