CN107739573A - A kind of graphene heat radiation coating and preparation method thereof - Google Patents
A kind of graphene heat radiation coating and preparation method thereof Download PDFInfo
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- CN107739573A CN107739573A CN201711161326.2A CN201711161326A CN107739573A CN 107739573 A CN107739573 A CN 107739573A CN 201711161326 A CN201711161326 A CN 201711161326A CN 107739573 A CN107739573 A CN 107739573A
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- graphene
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on 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; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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- 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
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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Abstract
The invention discloses a kind of graphene heat radiation coating, its component percentage used is：The % of water-base resin 30~60, the % of nano-graphene 3~15, the % of graphene dispersion agent 0.5~2.5, the % of aqueous levelling agent 0.5~1.5, the % of aqueous defoamer 0.5~1.5, the % of solvent 30~40, the percetage by weight sum of each component is 100%.The high heat conductance and excellent Optical instrument of water-base resin, high intensity and excellent heat-resisting quantity, the electrical insulation capability of present invention comprehensive utilization nano-graphene, nano-graphene is dispersed in water-base resin under the synergy of various auxiliary agents, a kind of new environmentally friendly heat radiation coating is prepared, it has the advantages that good heat dissipation effect, low in raw material price, environment-friendly and preparation method are quick and easy.
Description
Technical field
The invention belongs to paint field, and in particular to a kind of graphene heat radiation coating and preparation method thereof.
Background technology
With the high speed development of electronics industry, modern electronic equipment is increasingly becoming the highly integrated system of High Density Packaging
System, this causes the heat flow density of product to become big increasingly.Such as the heat-sinking capability deficiency of fruit product, part and circuit temperature rise, just
Equipment thermal deformation and thermal failure can be made, have influence on performance and the life-span of electronic product.In addition, in metallurgy, petrochemical industry, ceramics, medicine
Deng in industry field, the bodies of heater such as various Industrial Boilers, station boiler, flame furnace are often related to, peace of its heat dispersion to personnel
Complete and equipment reliability service is most important.Therefore, how to improve the heat dispersions of electronics industry and other field devices into
To promote the important topic of industrial progress.
For system radiating problem, frequently with actively and passive radiating mode, and many workplaces are due to can not be organic
Tool vibrates installs fan with reason inconvenience such as mechanicalness noise, size or structures, and requires to protect metal while strengthening radiating
Situations such as matrix.Therefore, its heat dispersion is improved in the coating of all types of industries spreader surface coating high radiant rate, in nature
It will be effectively radiating mode that heat loss through radiation is combined while heat loss through convection, and have in some cases irreplaceable excellent
Gesture.Such as it can only finally be distributed in aerospace field, the waste heat of universe spacecraft radiator in a manner of radiating.
Therefore, High Radiant Rate Coating receives much attention as important reinforcing heat loss through radiation material.
At present, the radiating filler commonly used in heat radiation coating mainly has aluminium nitride, silicon nitride, aluminum oxide, carborundum, oxidation
Zinc, graphite, CNT, graphene oxide etc..Although the thermal conductivity of these oxides or nitride is higher, prevailing price compared with
It is expensive.Meanwhile prepared coating contains various organic solvents, have the shortcomings that toxicity is big, environmental pollution is serious.Therefore, at this
Field is sought a kind of very urgent with cheap, environment-friendly and quick and easy preparation method heat radiation coating.
The content of the invention
It is an object of the invention to provide a kind of graphene heat radiation coating and preparation method thereof, its have good heat dissipation effect,
The advantages that low in raw material price, quick and easy environment-friendly and preparation method.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of graphene heat radiation coating, its component percentage used are：The % of water-base resin 30~60, nano-graphene
3~15 %, the % of graphene dispersion agent 0.5~2.5, the % of aqueous levelling agent 0.5~1.5, the % of aqueous defoamer 0.5~1.5, solvent
30~40 %, the percetage by weight sum of each component is 100%；The graphene dispersion agent is calcium sulfate crystal whiskers and hydrogenated castor
The mixture of oil, both weight ratios are 1-2:1.
The water-base resin is waterborne organic silicon resin, aqueous epoxy resins or waterborne polyurethane resin.
The particle diameter of the nano-graphene is less than 100 nm.
The solvent is water and/or ethanol.
The preparation method of the graphene heat radiation coating be by water-base resin, solvent, nano-graphene, aqueous levelling agent,
After graphene dispersion agent and aqueous defoamer are sufficiently mixed by proportioning, ball milling is carried out in ball mill, its ball milling speed be 400~
600 r/min, milling time are 4~6 hours.
Compared with prior art, the advantage of the invention is that：
（1）The present invention uses the nano-graphene of high heat conductance as heat-conducting medium, and uses calcium sulfate crystal whiskers and hydrogenated castor
The mixture of oil is as dispersant, so that nano-graphene is fully dispersed, so as to effectively improve the heat conduction of coating, heat dispersion.
（2）The present invention use filmogen of the water-base resin as coating, with Optical instrument is good, intensity is high and high temperature resistant
Property, the advantages that electrical insulation capability is high.
（3）The present invention uses water-base resin, and it is solvent that water, ethanol etc., which can be used, has low, the environment-friendly spy of price
Point.
（4）Simple spraying method can be used to be directly coated at the surface of heat abstractor for heat radiation coating of the present invention, with increase
Its area of dissipation, improving radiating effect, have efficiently, conveniently, green feature.
（5）The present invention is solvent using water and/or ethanol, and fast with drying rate, drying temperature is low, or even at normal temperatures
Also the characteristics of can drying, energy consumption is low.
（6）Graphene heat radiation coating preparation method of the present invention is simple, and preparation condition is gentle, easy to operate, small investment, is easy to
Popularization and industrialization.
Embodiment
In the examples below, graphene dispersion agent is from calcium sulfate crystal whiskers and the mixture of rilanit special（Weight ratio
For 2:1）；Aqueous levelling agent selects aqueous levelling agent BYK-333, and its safety and environmental protection is environmentally safe；Aqueous defoamer is selected
With aqueous defoamer BD-304, its composition is a kind of O/W types high activity organosiloxane emulsion.
Embodiment 1
First 35 g waterborne organic silicon resin H-900 and 40 g water are mixed, add 3.3g nano-graphene powder afterwards
（Particle diameter is 100nm）, graphene dispersion agent, aqueous levelling agent and each 0.5 g of aqueous defoamer are added after stirring 1 minute and is mixed,
It is placed in ball mill, with 400 r/min ball millings 6 hours, obtains nano-graphene heat radiation coating, pour out ground coating and seal up for safekeeping
It is stand-by.
Embodiment 2
First 40 g aqueous epoxy resins E44 and 30 g ethanol are mixed, add 4.5 g nano-graphene powder afterwards
（Particle diameter is 100nm）, graphene dispersion agent, aqueous levelling agent and each 1g of aqueous defoamer are added after stirring 1 minute and is mixed, is placed in
In ball mill, with 400 r/min ball millings 6 hours, nano-graphene heat radiation coating is obtained, ground coating is poured out and seals up for safekeeping and treat
With.
Embodiment 3
First 50g waterborne polyurethane resin CS1600 and 40g water is mixed, adds 7g nano-graphene powder afterwards（Grain
Footpath is 100nm）, graphene dispersion agent 2g, aqueous levelling agent and each 1g of aqueous defoamer are added after stirring 1 minute and is mixed, is placed in
In ball mill, with 400 r/min ball millings 6 hours, nano-graphene heat radiation coating is obtained, ground coating is poured out and seals up for safekeeping and treat
With.
Embodiment 4
First by 60 g waterborne organic silicon resin H-900 and 35 g ethanol-water mixed solvents（The weight ratio of second alcohol and water is 4:3）It is mixed
It is combined, adds 15g nano-graphene powder afterwards（Particle diameter is 100nm）, graphene dispersion agent is added after stirring 1 minute
2g, aqueous levelling agent and each 1.5 g of aqueous defoamer are mixed, and are placed in ball mill, with 400 r/min ball millings 6 hours, are received
Rice graphene heat radiation coating, pour out ground coating seal up for safekeeping it is stand-by.
Embodiment 5
First by 55g aqueous epoxy resins E44 and 30g ethanol-water mixed solvents（The weight ratio of second alcohol and water is 1:2）It is blended in one
Rise, afterwards, add 10g nano-graphene powder（Particle diameter is 100nm）, stirring adds graphene dispersion agent 1g, water-based after 1 minute
Levelling agent and each 1.5 g of aqueous defoamer are mixed, and are placed in ball mill, with 400 r/min ball millings 6 hours, obtain nano-graphite
Alkene heat radiation coating, pour out ground coating seal up for safekeeping it is stand-by.
Embodiment 6
First by 60g waterborne polyurethane resin CS1600 and 40g ethanol-water mixed solvents（The weight ratio of second alcohol and water is 1:3）It is mixed
It is combined, adds 18g nano-graphene powder afterwards（Particle diameter is 100nm）, graphene dispersion agent is added after stirring 1 minute
3g, aqueous levelling agent and each 1 g of aqueous defoamer are mixed, and are placed in ball mill, with 400 r/min ball millings 6 hours, obtain nanometer
Graphene heat radiation coating, pour out ground coating seal up for safekeeping it is stand-by.
Following table is that the nano-graphene heat radiation coating prepared by embodiment 1-6 is applied with the graphene prepared using ultrasonic disperse
Material（Without graphene dispersion agent）Carry out performance comparison, its data such as following table：
Presently preferred embodiments of the present invention is the foregoing is only, all equivalent changes done according to scope of the present invention patent are with repairing
Decorations, it should all belong to the covering scope of the present invention.
Claims (5)
- A kind of 1. graphene heat radiation coating, it is characterised in that：Component percentage used is：Water-base resin 30~60 %, the % of nano-graphene 3~15, the % of graphene dispersion agent 0.5~2.5, the % of aqueous levelling agent 0.5~1.5, aqueous defoamer 0.5 ~1.5 %, the % of solvent 30~40, the percetage by weight sum of each component is 100%；The graphene dispersion agent is the mixture of calcium sulfate crystal whiskers and rilanit special, and both weight ratios are 1-2:1.
- 2. graphene heat radiation coating according to claim 1, it is characterised in that：The water-base resin is waterborne organic silicon tree Fat, aqueous epoxy resins or waterborne polyurethane resin.
- 3. graphene heat radiation coating according to claim 1, it is characterised in that：The particle diameter of the nano-graphene is less than 100 nm。
- 4. graphene heat radiation coating according to claim 1, it is characterised in that：The solvent is water and/or ethanol.
- A kind of 5. preparation method of graphene heat radiation coating as claimed in claim 1, it is characterised in that：By water-base resin, molten After agent, nano-graphene, aqueous levelling agent, graphene dispersion agent and aqueous defoamer are sufficiently mixed by proportioning, in ball mill Ball milling is carried out, its ball milling speed is 400~600 r/min, milling time is 4~6 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711161326.2A CN107739573A (en) | 2017-11-21 | 2017-11-21 | A kind of graphene heat radiation coating and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711161326.2A CN107739573A (en) | 2017-11-21 | 2017-11-21 | A kind of graphene heat radiation coating and preparation method thereof |
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| CN107739573A true CN107739573A (en) | 2018-02-27 |
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| CN201711161326.2A Pending CN107739573A (en) | 2017-11-21 | 2017-11-21 | A kind of graphene heat radiation coating and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109065457A (en) * | 2018-06-27 | 2018-12-21 | 深圳市爱拓芯半导体技术有限公司 | A kind of method that graphene heat conducting film is used for power module heat dissipation |
| CN109796827A (en) * | 2019-01-19 | 2019-05-24 | 深圳市国创珈伟石墨烯科技有限公司 | A kind of watersoluble plumbago alkene heat radiation coating and production method, a kind of water-based cooling coating |
| CN109929293A (en) * | 2019-02-22 | 2019-06-25 | 福建科华中盈新材料有限公司 | One kind being applied to compound graphene three proofings thermal dispersant coatings of electronics industry and preparation method thereof |
| CN116063922A (en) * | 2021-11-01 | 2023-05-05 | 艾美特电器（九江）有限公司 | Graphene coating, graphene PTC heat dissipation piece, production process and heating device |
-
2017
- 2017-11-21 CN CN201711161326.2A patent/CN107739573A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109065457A (en) * | 2018-06-27 | 2018-12-21 | 深圳市爱拓芯半导体技术有限公司 | A kind of method that graphene heat conducting film is used for power module heat dissipation |
| CN109796827A (en) * | 2019-01-19 | 2019-05-24 | 深圳市国创珈伟石墨烯科技有限公司 | A kind of watersoluble plumbago alkene heat radiation coating and production method, a kind of water-based cooling coating |
| CN109929293A (en) * | 2019-02-22 | 2019-06-25 | 福建科华中盈新材料有限公司 | One kind being applied to compound graphene three proofings thermal dispersant coatings of electronics industry and preparation method thereof |
| CN116063922A (en) * | 2021-11-01 | 2023-05-05 | 艾美特电器（九江）有限公司 | Graphene coating, graphene PTC heat dissipation piece, production process and heating device |
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