CN103360804B - A kind of graphite radiating coating and preparation method thereof - Google Patents
A kind of graphite radiating coating and preparation method thereof Download PDFInfo
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- CN103360804B CN103360804B CN201310312047.7A CN201310312047A CN103360804B CN 103360804 B CN103360804 B CN 103360804B CN 201310312047 A CN201310312047 A CN 201310312047A CN 103360804 B CN103360804 B CN 103360804B
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- graphite
- radiating coating
- graphite radiating
- water
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- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 47
- 239000010439 graphite Substances 0.000 title claims abstract description 47
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 239000011248 coating agent Substances 0.000 title claims abstract description 29
- 238000000576 coating method Methods 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 229920006335 epoxy glue Polymers 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 15
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229940059574 pentaerithrityl Drugs 0.000 claims abstract description 7
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000000227 grinding Methods 0.000 claims abstract description 5
- 238000012545 processing Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 239000003292 glue Substances 0.000 claims abstract description 3
- 239000002245 particle Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 7
- 230000017525 heat dissipation Effects 0.000 abstract description 6
- 230000003287 optical effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 3
- 230000008676 import Effects 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002070 germicidal effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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Abstract
The invention belongs to heat sink article field, a kind of graphite radiating coating and preparation method thereof is provided, described graphite radiating material is by the water of the graphite of mass percent more than 80%, the epoxy glue of 5%-10% and surplus, a kind of liquid mixture formed through precision optical machinery deep processings such as grindings, wherein, described epoxy glue to be uniformly mixed by mechanical high-speed by multiple water-soluble glue to form, and mainly comprises following composition, calculate by quality ratio: polyvinylidene difluoride (PVDF) 1 ~ 5; Xylo-Mucine 1 ~ 3; Tetramethylolmethane 4 ~ 0.5; Water 0.3 ~ 1.Graphite radiating coating provided by the invention, its good heat dissipation effect, quality are light, coating can random molding, its thickness can regulate as required, the production technique of this kind of graphite radiating coating is simple, production cost only has 1/3rd of external same level product, can import substitutes completely performance.
Description
Technical field
The invention belongs to heat sink article field, particularly relate to a kind of graphite radiating coating and preparation method thereof.
Background technology
High power density electron device and high-end electronic industrial devices etc. are gradually to miniaturization, compact construction, high power densityization development, cause heat dissipation problem thus and stern challenge has been proposed to the job stability of device and reliability, thus the heat strengthening produced in its operational process is derived and diffused had higher requirement.Current most products, as civilian high-end electronic device, LED chip material, full scale plant interchanger etc., the radiator element base material used is nearly all aluminium alloy, but aluminium is not the metallic substance that heat extraction coefficient (237W/m.K) is the highest.The heat dispersion of gold and silver is better, but shortcoming to be price too high, the heat extraction coefficient (398W/m.K) of copper takes second place, but copper is except price is also relatively high, its weight is large, and not corrosion-resistant, in addition when copper once be oxidized, its heat dispersion and life-span will decline greatly.
The research and development of graphite radiating material are successfully that the solution of high power electronic device heat dissipation problem provides the most effective approach, because such quality of materials is light, be only 1/2 ~ 1/5 of conventional metals heat sink material, and its rate of heat dissipation is high, corrosion-resistant, thermal expansivity is little, the aforementioned product that need dispel the heat replaces traditional metal materials, not only be conducive to the miniaturization of electron device, microminiaturization and high power density, effectively can also alleviate the weight of product, increase useful load, also can extend the practical life of product simultaneously.
Summary of the invention
In view of above problem, main purpose of the present invention is to provide a kind of graphite radiating coating and preparation method thereof, its good heat dissipation effect, quality are light, coating can random molding, its thickness can regulate as required, also can improve the production efficiency of electronic product simultaneously, reduce its production cost, reduce electronic product thermo-efficiency, greatly can improve precision and the work-ing life of electronic product.
In order to reach above object, this kind of graphite radiating coating provided by the invention, by the water of the graphite of mass percent more than 80%, the epoxy glue of 5%-10% and surplus, a kind of liquid mixture formed through precision optical machinery deep processings such as grindings, wherein, described epoxy glue to be uniformly mixed by mechanical high-speed by multiple water-soluble glue to form, and mainly comprises following composition, calculate by quality ratio:
Further, the composition of described epoxy glue is calculated by quality ratio, is preferably:
Further, the composition of described epoxy glue is calculated by quality ratio, is preferably:
Further, the composition of described epoxy glue is calculated by quality ratio, is preferably:
In addition, this kind of graphite radiating coating provided by the invention, the size of its conventional products graphite particle diameter is at 0.00001 ~ 0.5 millimeter, and the size of high-end product graphite particle diameter is in 50 ~ 900 nanometers, and the granular size of described epoxy glue is as the criterion can dissolve each other in a solvent with graphite.
The viscosity of this kind of graphite radiating coating provided by the invention is at 10 ~ 130 degree Beaume, and its solid-to-liquid ratio is 3: 7 ~ 6: 4 (mass ratioes); This graphite radiating coating environmental protection, no matter environmentally safe is in production process, does not still in use produce three wastes goods and materials (waste gas, waste water, waste residue), this kind of graphite radiating coating can constantly recycle, and does not affect its heat dispersion.
The present invention also provides the preparation method of this kind of graphite radiating coating, and basic process steps is: graphite grinding-graphite baking-batch mixing-batch mixing grinding-detect analysis-qualified packaging.Wherein, described graphite baking adopts modern high-tech method microwave baking, with microwave continuous baking 20-30 hour under 850-1000 degree condition, microwave baking makes graphite be heated evenly, microwave has germicidal action, the graphite of microwave baking equal in quality and common electricity are baked and are wanted energy-conservation about 50%, and the method heating is the new trend that futurity industry adds thermally developing.
The present invention has the following advantages:
Graphite radiating coating provided by the invention, its good heat dissipation effect, quality are light, coating can random molding, and its thickness can regulate as required, also can improve the production efficiency of electronic product simultaneously, reduce its production cost, reduce electronic product thermo-efficiency, greatly can improve precision and the work-ing life of electronic product, and the production technique of this kind of graphite radiating coating is simple, production cost only has 1/3rd of external same level product, can import substitutes completely performance.
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is further illustrated, but its restriction of not opposing:
Embodiment 1
To prepare the conventional products of graphite radiating coating of the present invention, the size choosing particle diameter, at the graphite of 0.00001 ~ 0.5 millimeter, through mechanical mill, then adopts microwave baking, under 850-1000 degree condition, toast 20 hours by microwave continuous; Preparation epoxy glue, is got polyvinylidene difluoride (PVDF), Xylo-Mucine, tetramethylolmethane, water respectively by weight 1: 1.5: 2: 1, is uniformly mixed by mechanical high-speed; And then according to the water of the graphite of mass percent more than 80%, the epoxy glue of 5%-10% and surplus, form graphite radiating coating of the present invention through precision optical machinery deep processings such as grindings.
Embodiment 2
To prepare the high-end product of graphite radiating coating of the present invention, choose the graphite of size in 50 ~ 900 nanometers of particle diameter, through mechanical mill, then adopt microwave baking, under 850-1000 degree condition, toast 30 hours by microwave continuous; Preparation epoxy glue, is got polyvinylidene difluoride (PVDF), Xylo-Mucine, tetramethylolmethane, water respectively by weight 2: 2: 0.5: 1, is uniformly mixed by mechanical high-speed; And then according to the water of the graphite of mass percent more than 80%, the epoxy glue of 5%-10% and surplus, form graphite radiating coating of the present invention through precision optical machinery deep processings such as grindings.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (5)
1. the preparation method of a graphite radiating coating, it is characterized in that, described graphite radiating coating is by the graphite of mass percent more than 80%, the epoxy glue of 5%-10% and the water of surplus, a kind of liquid mixture formed through grinding, wherein, the size of described graphite particle diameter is 50 ~ 900 nanometers, described epoxy glue to be uniformly mixed by mechanical high-speed by multiple water-soluble glue to form, consist of the following composition, calculate by quality ratio: polyvinylidene difluoride (PVDF): 1 ~ 5, Xylo-Mucine: 1 ~ 3, tetramethylolmethane: 0.5 ~ 4, water: 0.3 ~ 1, the preparation method of described graphite radiating coating comprises following processing step: graphite grinding-graphite baking-batch mixing-batch mixing grinding-detect analysis-qualified packaging, wherein, described graphite baking adopts microwave baking, with microwave continuous baking 20-30 hour under 850-1000 degrees celsius.
2. the preparation method of a kind of graphite radiating coating according to claim 1, it is characterized in that, the composition of described epoxy glue is calculated by quality ratio, consists of the following composition: polyvinylidene difluoride (PVDF): 1 ~ 3, Xylo-Mucine: 1 ~ 2, tetramethylolmethane: 0.5 ~ 2, water: 0.5 ~ 1.
3. the preparation method of a kind of graphite radiating coating according to claim 1, it is characterized in that, the composition of described epoxy glue is calculated by quality ratio, consists of the following composition: polyvinylidene difluoride (PVDF): 1, Xylo-Mucine: 1.5, tetramethylolmethane: 2, water: 1.
4. the preparation method of a kind of graphite radiating coating according to claim 1, it is characterized in that, the composition of described epoxy glue is calculated by quality ratio, consists of the following composition: polyvinylidene difluoride (PVDF): 3, Xylo-Mucine: 2, tetramethylolmethane: 0.5, water: 1.
5. the preparation method of a kind of graphite radiating coating according to claim 1, is characterized in that, the described microwave baking time is 24 hours.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310312047.7A CN103360804B (en) | 2013-07-24 | 2013-07-24 | A kind of graphite radiating coating and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310312047.7A CN103360804B (en) | 2013-07-24 | 2013-07-24 | A kind of graphite radiating coating and preparation method thereof |
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| Publication Number | Publication Date |
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| CN103360804A CN103360804A (en) | 2013-10-23 |
| CN103360804B true CN103360804B (en) | 2016-01-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107321910A (en) * | 2017-07-03 | 2017-11-07 | 李吕军 | Cracking resistance coating agent for model casting casting and preparation method thereof |
| CN107262667A (en) * | 2017-07-03 | 2017-10-20 | 李吕军 | Wear-resisting coating agent for model casting casting and preparation method thereof |
| CN108359287A (en) * | 2018-03-01 | 2018-08-03 | 合肥康之恒机械科技有限公司 | A kind of machinery non-metallic component heat radiation enhancement type coating |
| CN115286940A (en) * | 2022-08-08 | 2022-11-04 | 广东奥德迈新能源有限责任公司 | Heat radiating fin, graphene heat radiating coating and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102649896A (en) * | 2012-05-29 | 2012-08-29 | 邱璟 | Novel high heat conduction and heat dissipation coating and manufacturing method thereof |
| CN102964972A (en) * | 2012-11-06 | 2013-03-13 | 河北工业大学 | Composite intensified heat dissipation coating containing graphene or graphene oxide and preparation method of coating |
| CN103131274A (en) * | 2013-03-20 | 2013-06-05 | 钱新明 | Fluororesin radiating paint and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102649896A (en) * | 2012-05-29 | 2012-08-29 | 邱璟 | Novel high heat conduction and heat dissipation coating and manufacturing method thereof |
| CN102964972A (en) * | 2012-11-06 | 2013-03-13 | 河北工业大学 | Composite intensified heat dissipation coating containing graphene or graphene oxide and preparation method of coating |
| CN103131274A (en) * | 2013-03-20 | 2013-06-05 | 钱新明 | Fluororesin radiating paint and preparation method thereof |
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| CN103360804A (en) | 2013-10-23 |
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Effective date of registration: 20170512 Address after: The base building in Hunan province Changsha wealth into 410000 City Lugu high tech Development Zone, Lu Jing Road No. 2 Changsha building on the west side of the four scientific and technological achievements Co-patentee after: Liu Xinli Patentee after: Hunan Aode Mai energy limited liability company Address before: 410006 entrepreneurial building, Science Park, Science Park, Xiaoxiang Middle Road, Changsha, Hunan, Yuelu District Co-patentee before: Liu Shenshu Patentee before: Liu Xinli |
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Denomination of invention: Graphite heat-dissipation coating and preparation method thereof Effective date of registration: 20190918 Granted publication date: 20160120 Pledgee: China Construction Bank Co., Ltd. Changsha Xingsha Branch Pledgor: Hunan Odemay Energy Co., Ltd.|Liu Xinli Registration number: Y2019430000017 |
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Effective date of registration: 20220420 Granted publication date: 20160120 |
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