CN107418336A - Environment-friendly type heat radiation coating and preparation method thereof - Google Patents
Environment-friendly type heat radiation coating and preparation method thereof Download PDFInfo
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- CN107418336A CN107418336A CN201710657963.2A CN201710657963A CN107418336A CN 107418336 A CN107418336 A CN 107418336A CN 201710657963 A CN201710657963 A CN 201710657963A CN 107418336 A CN107418336 A CN 107418336A
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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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- 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
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
-
- 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
- C08K3/38—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
- C08K2201/011—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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
-
- 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 present invention proposes a kind of environment-friendly type heat radiation coating and preparation method thereof, is calculated according to percetage by weight, including following raw material is made：Acrylic resin 10~15%, water-soluble nanoscale silica sol 10~20%, boron nitride 6~12%, the mixture 3~6% of magnesia and aluminum oxide, inorganic bentonite 6~18%, polyvinyl alcohol 5~10%, dispersant 0~1%, levelling agent 0~1% and adhesion promoter 0~1%, remaining is solvent.Comprise the following steps：The acrylic resin is dissolved in the solvent, then adds remaining raw material, stirs, produces.The environment-friendly type heat radiation coating has that radiating rate is fast, can normal temperature cure, can be directly coated on heater element, so as to reduce the surface temperature of heater element.
Description
Technical field
The invention belongs to technical field of coatings, and in particular to a kind of environment-friendly type heat radiation coating and preparation method thereof.
Background technology
The heat dissipation problem of electronic equipment, it is related to reliability and the life-span of electronic equipment, is to influence current electronics industry hair
One bottleneck of exhibition, along with electronic industry high-performance, miniaturization, three integrated developing directions, heat dissipation problem is increasingly
It is prominent.In addition, one of principal element that radiating and limitation light emitting diode (LED) power improve, particularly special at some
And adverse circumstances, the heat dissipation problem such as the high-power LED lamp used under underwater closed environment is especially prominent, and research is high-power
The heating rule of LED, find the problem of more preferable radiating method is one anxious to be resolved.
In thermodynamics, radiating is exactly heat transfer, and the transfer mode of heat mainly has three kinds：Heat transfer, thermal convection current
And heat radiation.For material in itself or when material contacts with material, the transmission of energy is thus referred to as heat transfer, and this is most common one
Kind thermaltransmission mode, and the best a kind of radiating mode of radiating effect at present.
But generally use is air cooling method in electronic product particularly CPU radiating at present, that this method belongs to heat is right
Stream, cooling effectiveness is low, and fan can also produce noise, also with flimsy defect；Also someone uses semiconductor chilling plate
The shortcomings of method, this method belong to heat transfer, but low there is also refrigerating efficiency, and technique is immature and price is high；Also using leading
Hot silica gel etc. is used to radiate, but effect is all undesirable.
Therefore, it is significant to find a kind of simple, quick, economic, practical, efficient environment-friendly type heat radiation coating.
The content of the invention
The present invention proposes a kind of environment-friendly type heat radiation coating, and the environment-friendly type heat radiation coating has that radiating rate is fast, being capable of normal temperature
Solidification, can be directly coated on heater element, so as to reduce the surface temperature of heater element.
The technical proposal of the invention is realized in this way：
A kind of environment-friendly type heat radiation coating, is calculated according to percetage by weight, including following raw material is made：
Acrylic resin 10~15%, water-soluble nanoscale silica sol 10~20%, boron nitride 6~12%, magnesia with
The mixture 3~6% of aluminum oxide, inorganic bentonite 6~18%, polyvinyl alcohol 5~10%, dispersant 0~1%, levelling agent 0~
1% with adhesion promoter 0~1%, remaining is solvent.
Further, inorganic bentonite described in some embodiments of the invention is selected from sodium bentonite, calcium-base bentonite, lithium base
Bentonite, as anti-settling agent, reduces the environmental pollution factorses in formulation for coating material with the one or more in hydrogen-based bentonite.
With water-soluble nanoscale silica sol coordinated, the thixotropy of coating can be improved, suspend by playing the same effect of organobentonite
Property and stability, improve apply malleability.
Further, the particle diameter of boron nitride described in some embodiments of the invention is 20nm~150nm.With nano level nitridation
Boron is as main heat sink raw material, by increasing capacitance it is possible to increase radiating surface, improves radiating rate.
Further, dispersant described in some embodiments of the invention is that fatty acid, aliphatic amide type and esters are disperseed
At least one of agent；The levelling agent is at least one of acrylic compounds, organic silicon and fluorocarbons class levelling agent；
The adhesion promoter is selected from least one of alkane coupling agent class and resinae adhesion promoter.
Further, solvent described in some embodiments of the invention is the aqueous solution of ethanol.
Further, the volume ratio of ethanol described in some embodiments of the invention and water is 92~98:2~8.
It is a further object to provide a kind of preparation method of described environment-friendly type heat radiation coating, including following step
Suddenly：The acrylic resin is dissolved in the solvent, then adds remaining raw material, stirs, produces.
Further, the acrylic resin is dissolved in the solvent in some embodiments of the present invention, then added water-soluble
Property nano silicone colloidal sol, boron nitride, mixture, dispersant, levelling agent, the adhesion promoter of magnesia and aluminum oxide, fully
Inorganic bentonite is added after mixing, is stirred, is produced.
Beneficial effects of the present invention：
1st, as major ingredient, ageing-resistant, cohesive force is big, good heat dissipation effect to use acrylic resin by the present invention, can be in 150-
It is long-term use of at 200 DEG C.Chemical bond after using water-soluble nanoscale silica sol as film forming matter film forming is with " Si=O " and " Al
It is entirely inorganic molecule structure based on=O ",, can in follow-up application and forming process because its granularity is between nanoscale
Using the viscosity and adhesive force of the colloid itself, to replace traditional organic solvent and bonding agent filler etc., to have
Natural safety non-toxic, it is a kind of environment friendly nano coating, coordinates particularly in alcohol solution with magnesia alumina, can
To have improved ageing-resistant performance.
2nd, the coating has normal temperature solidified from dryness, and construction is simple is convenient, has the characteristics of cost-effective, and final
To thermal dispersant coatings be resistant to a certain degree of high temperature and corrosion.
Embodiment
Embodiment 1
A kind of environment-friendly type heat radiation coating, is calculated according to percetage by weight, including following raw material is made：
The mixing of acrylic resin 12%, water-soluble nanoscale silica sol 15%, boron nitride 9%, magnesia and aluminum oxide
Thing 5%, sodium bentonite 12%, polyvinyl alcohol 8%, dispersant (ployphosphonate ester) 0.5%, levelling agent (polyether-modified poly- diformazan
Radical siloxane) 0.5% with adhesion promoter (epoxy radicals silicone hydride) 0.5%, remaining be ethanol the aqueous solution (V ethanol：V water=
92：:8).
Preparation method：
Acrylic resin is dissolved in the aqueous solution of ethanol, then add water-soluble nanoscale silica sol, boron nitride, magnesia with
Mixture, dispersant, levelling agent, the adhesion promoter of aluminum oxide, add inorganic bentonite after being sufficiently mixed, stirring is equal
It is even, produce.
The environment-friendly type heat radiation coating ultraviolet of the present embodiment is irradiated into 3.5h, coating not shedding is non-yellowing, at 100 DEG C and
Artificial accelerated aging test under the conditions of 280W ultraviolet light irradiations, ageing-resistant 5450 hours time, 280 DEG C of heatproof high temperature, bonding are cut
Shear force 21.2MPa, thermal conductivity factor 303W/ (mK).
Embodiment 2
A kind of environment-friendly type heat radiation coating, is calculated according to percetage by weight, including following raw material is made：
The mixing of acrylic resin 10%, water-soluble nanoscale silica sol 18%, boron nitride 12%, magnesia and aluminum oxide
Thing 6%, sodium bentonite 16%, polyvinyl alcohol 5%, dispersant (ployphosphonate ester) 1%, levelling agent (polyether-modified poly dimethyl
Siloxanes) 1% with adhesion promoter (epoxy radicals silicone hydride) 1%, remaining be ethanol the aqueous solution (V ethanol：V water=98：2).
Preparation method：
Acrylic resin is dissolved in the aqueous solution of ethanol, then add water-soluble nanoscale silica sol, boron nitride, magnesia with
Mixture, dispersant, levelling agent, the adhesion promoter of aluminum oxide, add inorganic bentonite after being sufficiently mixed, stirring is equal
It is even, produce.
The environment-friendly type heat radiation coating ultraviolet of the present embodiment is irradiated into 3.5h, coating not shedding is non-yellowing, at 100 DEG C and
Artificial accelerated aging test under the conditions of 280W ultraviolet light irradiations, ageing-resistant 5400 hours time, 280 DEG C of heatproof high temperature, bonding are cut
Shear force 20.8MPa, thermal conductivity factor 294W/ (mK).
Embodiment 3
A kind of environment-friendly type heat radiation coating, is calculated according to percetage by weight, including following raw material is made：
The mixing of acrylic resin 15%, water-soluble nanoscale silica sol 10%, boron nitride 6%, magnesia and aluminum oxide
Thing 3%, calcium-base bentonite 6%, polyvinyl alcohol 10%, dispersant (ployphosphonate ester) 0.2%, levelling agent (polyether-modified poly- diformazan
Radical siloxane) 0.2% with adhesion promoter (epoxy radicals silicone hydride) 0.2%, remaining be ethanol the aqueous solution (V ethanol：V water=
95：5).
Preparation method：
Acrylic resin is dissolved in the aqueous solution of ethanol, then add water-soluble nanoscale silica sol, boron nitride, magnesia with
Mixture, dispersant, levelling agent, the adhesion promoter of aluminum oxide, add inorganic bentonite after being sufficiently mixed, stirring is equal
It is even, produce.
The environment-friendly type heat radiation coating ultraviolet of the present embodiment is irradiated into 3.5h, coating not shedding is non-yellowing, at 100 DEG C and
Artificial accelerated aging test under the conditions of 280W ultraviolet light irradiations, ageing-resistant 5350 hours time, 280 DEG C of heatproof high temperature, bonding are cut
Shear force 19.8MPa, thermal conductivity factor 285W/ (mK).
Embodiment 4
A kind of environment-friendly type heat radiation coating, is calculated according to percetage by weight, including following raw material is made：
The mixing of acrylic resin 13%, water-soluble nanoscale silica sol 20%, boron nitride 10%, magnesia and aluminum oxide
Thing 3%, calcium-base bentonite 18%, polyvinyl alcohol 7%, divide dispersant (ployphosphonate ester) 0.2%, levelling agent (polyether-modified poly- two
Methylsiloxane) 0.2% with adhesion promoter (epoxy radicals silicone hydride) 0.2%, remaining be ethanol the aqueous solution (V ethanol：V water
=95：5).
Preparation method：
Acrylic resin is dissolved in the aqueous solution of ethanol, then add water-soluble nanoscale silica sol, boron nitride, magnesia with
Mixture, dispersant, levelling agent, the adhesion promoter of aluminum oxide, add inorganic bentonite after being sufficiently mixed, stirring is equal
It is even, produce.
The environment-friendly type heat radiation coating ultraviolet of the present embodiment is irradiated into 3.5h, coating not shedding is non-yellowing, at 100 DEG C and
Artificial accelerated aging test under the conditions of 280W ultraviolet light irradiations, ageing-resistant 5380 hours time, 280 DEG C of heatproof high temperature, bonding are cut
Shear force 20.3MPa, thermal conductivity factor 290W/ (mK).
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (8)
1. a kind of environment-friendly type heat radiation coating, it is characterised in that calculated according to percetage by weight, including following raw material is made：
Acrylic resin 10~15%, water-soluble nanoscale silica sol 10~20%, boron nitride 6~12%, magnesia and oxidation
Mixture 3~6%, inorganic bentonite 6~18%, polyvinyl alcohol 5~10%, dispersant 0~1%, the levelling agent 0~1% of aluminium
With adhesion promoter 0~1%, remaining is solvent.
2. environment-friendly type heat radiation coating according to claim 1, it is characterised in that the inorganic bentonite is selected from Na-bentonite
One or more in soil, calcium-base bentonite, lithium bentonite and hydrogen-based bentonite.
3. environment-friendly type heat radiation coating according to claim 1, it is characterised in that the particle diameter of the boron nitride be 20nm~
150nm。
4. environment-friendly type heat radiation coating according to claim 1, it is characterised in that the dispersant is fatty acid, fat
At least one of race's amide-type and esters dispersant；The levelling agent is acrylic compounds, organic silicon and fluorocarbons class
At least one of levelling agent；The adhesion promoter in alkane coupling agent class and resinae adhesion promoter at least
It is a kind of.
5. environment-friendly type heat radiation coating according to claim 1, it is characterised in that the solvent is the aqueous solution of ethanol.
6. environment-friendly type heat radiation coating according to claim 5, it is characterised in that the volume ratio of the ethanol and water be 92~
98:2~8.
7. the preparation method of environment-friendly type heat radiation coating as claimed in any one of claims 1 to 6, it is characterised in that including following
Step：The acrylic resin is dissolved in the solvent, then adds remaining raw material, stirs, produces.
8. the preparation method of environment-friendly type heat radiation coating according to claim 7, it is characterised in that by the acrylic resin
Be dissolved in the solvent, then add the mixture of water-soluble nanoscale silica sol, boron nitride, magnesia and aluminum oxide, dispersant,
Levelling agent, adhesion promoter, inorganic bentonite is added after being sufficiently mixed, is stirred, is produced.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710657963.2A CN107418336A (en) | 2017-08-03 | 2017-08-03 | Environment-friendly type heat radiation coating and preparation method thereof |
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| CN201710657963.2A CN107418336A (en) | 2017-08-03 | 2017-08-03 | Environment-friendly type heat radiation coating and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108250951A (en) * | 2018-02-26 | 2018-07-06 | 合肥信亚达智能科技有限公司 | A kind of power device heat radiation coating and preparation method thereof |
| CN111334099A (en) * | 2020-03-12 | 2020-06-26 | 广东晶天新能源电力有限公司 | Super-heat-dissipation light-absorption coating for solar module |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111334099A (en) * | 2020-03-12 | 2020-06-26 | 广东晶天新能源电力有限公司 | Super-heat-dissipation light-absorption coating for solar module |
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Application publication date: 20171201 |
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