CN108864894A - A kind of computer high efficiency and heat radiation coating and preparation method thereof - Google Patents
A kind of computer high efficiency and heat radiation coating and preparation method thereof Download PDFInfo
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- CN108864894A CN108864894A CN201810606749.9A CN201810606749A CN108864894A CN 108864894 A CN108864894 A CN 108864894A CN 201810606749 A CN201810606749 A CN 201810606749A CN 108864894 A CN108864894 A CN 108864894A
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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
- 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
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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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
- 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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/28—Nitrogen-containing compounds
- C08K2003/282—Binary compounds of nitrogen with aluminium
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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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- 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 provides a kind of computer high efficiency and heat radiation coating and preparation method thereof, is prepared by following component：Matrix resin, titanium dioxide, graphene, pearl filler, aluminium nitride, magnesium nitride, silicon carbide, tetramethylethylenediamine, dispersing agent, curing agent and compound additive.Heat radiation coating prepared by the present invention is free of organic solvent, environmental protection, safety, and also there are the comprehensive performances such as good flexibility, hardness, adhesive force, chemical property is stablized, the coating being prepared is corrosion-resistant, impact resistance is strong and there are also the performance to insulate, has wide range of applications, and has stronger practical value.
Description
Technical field
The invention belongs to technical field of electronic products, and in particular to a kind of computer high efficiency and heat radiation coating and its preparation side
Method.
Background technique
Heat radiation coating is always one of important branch of coating, in the industrial production using very extensively.Due to current material,
The fast development of metal modern science and technology, so that the design of instrument, equipment, component, production are towards miniaturization, lightweight, tight
Gathering, efficient direction are developed, and the development of super large-scale integration makes the high power density feature of electronic device more next again
It is more obvious, resulting amount of heat is by the job stability for directly influencing electronic device and complete reliability.
With the fast development of economic science and technology, various computers, mobile phone, electric appliance and electronic equipment obtain high speed development, still
Computer, mobile phone, various electric appliances and electronic equipment can generate a large amount of heat during working long hours, and various electronic equipment sheets
Body heat dissipation area is smaller, and heat dissipation performance is poor, the service life and performance of a large amount of heat affecting equipment, therefore is frequently necessary in equipment
Surface, the coating of one layer of auxiliary heat dissipation is coated on shell or chip, the heat radiation coating of the prior art developed comparatively fast in recent years,
Such as application No. is CN200810146607.5 to disclose a kind of heat radiation coating and preparation method thereof, and preparation method includes following step
Suddenly：(a) silicone resin and more than one solvents are provided, and are mixed them thoroughly to form the first mixed solution；(b) oxygen is added again
Change zinc powder in first mixed solution and to be sufficiently mixed；(c) silicon carbide powder and aluminium powder are added in the second mixed solution
And be sufficiently mixed, to form third mixed solution；(d) it adds anti-settling agent and dispersing agent in the third mixed solution and is sufficiently mixed
To form heat radiation coating.Wherein, respectively it is at the weight percent divided in the heat radiation coating：Silicone resin 20-40%；Solvent 30-50%；
Anti-settling agent 0-5.0%；Zinc oxide 0.1-5.0%；Silicon carbide 5-40%；Aluminium powder 5-40%；Dispersing agent and smooth agent 0-5.0%.Application number
A kind of self-radiation nano ecological paint and preparation method thereof, the formula of the nano ecological paint are disclosed for 200910199955.3
For：Aluminum sol 15-80%, silica solution 15-80%, nano heat-conductive filler 4-10%, pigment 3-27%, anti-settling agent 5-25%, wherein nanometer
Heat filling is the complex of 2-5% carbon nanotubes and 2-10% nanometer cobalt oxide or 2-10% nano zircite.Preparation method
For：Weigh corresponding Aluminum sol, nano heat-conductive filler, pigment and anti-settling agent etc. mixed, high speed dispersion, as a component；Claim
Corresponding silica solution is taken, as b component；A component and b component are mixed, low speed dispersion, stands curing to get nano ecological painting
Material.A kind of heat-conducting insulation material is disclosed application No. is 201010119910.3 and its manufacturing method, the material component are：1) have
There is the highly crystalline spherical metal oxide powder of at least two sizes, bulky grain powder size R and small particle powder size r are full
Foot：0.005R10 watts/ meter Du, and there is electrical insulating property；2) the thermally conductive powder of at least one sheet, such as flaky graphite powder, nitridation
Boron powder etc., thermal coefficient>30 watts/ meter Du；3) resin, such as epoxy, organosilicon, phenolic aldehyde, vinylite etc..Each component
Weight content：Spherical powder 20-60%, sheet conductive powder 3%-30%, resin 15%-65%.Through certain hybrid technique, obtained material tool
There are good heat conductive, thermal coefficient>0.5 watt/ meter Du, electrical insulating property>1012 ohm/cm2, there is good injection molding, squeeze out or hot
Molded property.But coating in the prior art contains a large amount of organic solvent mostly, in manufacture and work progress, has big
The organic solvent of amount volatilizees, and can all cause very big damage to people and environment, and the coating of the prior art is being transported and stored
Aspect is very unstable, poor safety performance, and the enhancing efficiency rate of existing heat radiation coating is lower, and radiating and cooling effect is unknown
It is aobvious, it is difficult to adapt to the radiating requirements of high performance components, and the heat radiation coating of the prior art, acts on more single.
In summary, it is therefore desirable to a kind of better heat radiation coating, to improve the deficiencies in the prior art.
Summary of the invention
It is prepared by the present invention to dissipate the object of the present invention is to provide a kind of computer high efficiency and heat radiation coating and preparation method thereof
Hot coating is free of organic solvent, environmental protection, safety, and also has the comprehensive performances such as good flexibility, hardness, adhesive force, chemistry
Property is stablized, and the coating being prepared is corrosion-resistant, and impact resistance is strong and performance there are also insulation, has wide range of applications, have compared with
Strong practical value.
The present invention provides the following technical solutions：
A kind of computer high efficiency and heat radiation coating, the raw material including following parts by weight：18-22 parts of matrix resin, titanium dioxide 13-
17 parts, 11-16 parts of graphene, 8-14 parts of pearl filler, 7-12 parts of aluminium nitride, 6-10 parts of magnesium nitride, 7-11 parts of silicon carbide, four
6-10 parts of methyl ethylenediamine, 7-12 parts of dispersing agent, 5-9 parts of curing agent and 4-8 parts of compound additive.
Preferably, the coating includes the raw material of following parts by weight：19-22 parts of matrix resin, 13-16 parts of titanium dioxide,
11-14 parts of graphene, 11-14 parts of pearl filler, 9-12 parts of aluminium nitride, 7-10 parts of magnesium nitride, 8-11 parts of silicon carbide, tetramethyl
7-10 parts of ethylenediamine, 7-11 parts of dispersing agent, 6-9 parts of curing agent and 6-8 parts of compound additive.
Preferably, the coating includes the raw material of following parts by weight：22 parts of matrix resin, 15 parts of titanium dioxide, graphene
13 parts, 12 parts of pearl filler, 12 parts of aluminium nitride, 10 parts of magnesium nitride, 8 parts of silicon carbide, 9 parts of tetramethylethylenediamine, dispersing agent 9
Part, 7 parts of curing agent and 6 parts of compound additive.
A kind of preparation method of computer high efficiency and heat radiation coating, including following preparation step：
A, matrix resin is imported in reaction kettle, is warming up to 150-160 DEG C, is heated to melting completely, adds graphene, carbonic acid
Calcium filler is imported in dispersion machine after mixing, to stir 0.6-0.7h under the revolving speed of 80-90r/min at 55-60 DEG C, is obtained
To mixture one；
B, titanium dioxide, aluminium nitride, magnesium nitride and silicon carbide are mixed and is imported in ball mill, be milled to 500 meshes, and added
Tetramethylethylenediamine stirs evenly, and obtains mixture two；
C, mixture two, dispersing agent are added sequentially in mixture one, carry out ultrasonic disperse processing, obtains mixture three；
D, mixture three, curing agent and compound additive are imported together in double screw extruder, melts and squeezes at 180-195 DEG C
Out, it imports in mold, is cooled to room temperature, finished product can be obtained.
Preferably, the matrix resin of the step a is acrylic resin, fluorocarbon resin, polyurethane resin and epoxy resin
In mass ratio 1:1:2:2 mix.
Preferably, the preparation method of the pearl filler of the step a is：Paris white was broken to 300-400 mesh,
Then calcium carbonate powder is mixed with water, stearmide, 12-15min is heated and stirred at 55-58 DEG C, takes supernatant after standing
Liquid continuously adds stearmide, carries out secondary agitation 20-22min, is then allowed to stand, takes sediment pressure-filteration drying, carbon can be obtained
Sour calcium filler.
Preferably, the preparation method of the pearl filler of the step a is：Paris white was broken to 400 meshes, then
Calcium carbonate powder is mixed with water, stearmide, 12min is heated and stirred at 55 DEG C, supernatant is taken after standing, continuously adds
Stearmide carries out secondary agitation 22min, is then allowed to stand, takes sediment pressure-filteration drying, pearl filler can be obtained.
Preferably, the ultrasonic disperse of the step c, which is handled, is：In the case where 65 DEG C, ultrasonic power are 80W, ultrasonic disperse
11min。
Preferably, the curing agent of the step d is that polyamide, epoxy amine additives, fatty amine and isocyanuric acid three shrink
Glyceride in mass ratio 2:1:1:2 mix.
Preferably, the compound additive of the step d includes defoaming agent, levelling agent, anti-settling agent, antioxidant, surface modification
Agent and diluent.
The beneficial effects of the invention are as follows：
Heat radiation coating prepared by the present invention is free of organic solvent, environmental protection, safety, and also has good flexibility, hardness, attachment
The comprehensive performances such as power, chemical property are stablized, and the coating being prepared is corrosion-resistant, and impact resistance is strong and there are also the performance to insulate, answer
With in extensive range, there is stronger practical value.
Matrix resin in the present invention is the proportion of acrylic resin, fluorocarbon resin, polyurethane resin and epoxy resin, third
Olefin(e) acid resin and epoxy resin are weather-proof, the very strong coating resins of heat resistance, and fluorocarbon resin and polyurethane resin can be very big
The heat radiation value and electric conductivity of coating are improved, four synergistic effect under the ratio can greatly improve preparation
The heat dissipation performance of finished product, and the service performance of computer or electronic product is not influenced.
Pearl filler in the present invention is after a series of recombination reactions to calcium carbonate, dispersibility with higher,
Cooperate again with titanium dioxide, the graphene in the present invention, graphene can further speed up the transmitting of heat, and titanium dioxide has
The effect of heat-resisting, weather-proof and conductive and heat-conductive, the synergistic effect of three can be very good to disperse to be formed in basic resin system
Pipe radiating network, to improve the heat dissipation performance of finished product, moreover it is possible to improve its weatherability；And the preparation method of preferred pearl filler
Further limit, the quality and performance of the pearl filler prepared can be improved.
The method of ultrasonic disperse processing in the present invention, can be improved the efficiency of preparation, and make in mixture system
Ingredient dispersion more evenly, solid particle it is thinner, be conducive to improve finished product heat dissipation performance.
Curing agent in the present invention is polyamide, epoxy amine additives, fatty amine and triglycidyl isocyanurate
Proportion, under the ratio, the pipe radiating network formed in mixture system is more stable, secured, to extend heat radiation coating
Service life also all increases to its durability, impact strength and wear-resistant strength.
Compound additive in the present invention includes defoaming agent, levelling agent, anti-settling agent, antioxidant, surface modifier and dilution
Agent can also promote its comprehensive performance, make it have stronger practical value while promoting the heat dissipation performance of finished product.
Specific embodiment
Embodiment 1
A kind of computer high efficiency and heat radiation coating, the raw material including following parts by weight：18 parts of matrix resin, 17 parts of titanium dioxide,
11 parts of graphene, 14 parts of pearl filler, 7 parts of aluminium nitride, 10 parts of magnesium nitride, 7 parts of silicon carbide, tetramethylethylenediamine 10 part, point
7 parts of powder, 9 parts of curing agent and 8 parts of compound additive.
A kind of preparation method of computer high efficiency and heat radiation coating, including following preparation step：
A, matrix resin is imported in reaction kettle, is warming up to 160 DEG C, is heated to melting completely, adds graphene, calcium carbonate is filled out
Material imports in dispersion machine after mixing, to stir 0.7h under the revolving speed of 80r/min at 58 DEG C, obtains mixture one；
B, titanium dioxide, aluminium nitride, magnesium nitride and silicon carbide are mixed and is imported in ball mill, be milled to 500 meshes, and added
Tetramethylethylenediamine stirs evenly, and obtains mixture two；
C, mixture two, dispersing agent are added sequentially in mixture one, carry out ultrasonic disperse processing, obtains mixture three；
D, mixture three, curing agent and compound additive are imported together in double screw extruder, the melting extrusion at 195 DEG C,
It imports in mold, is cooled to room temperature, finished product can be obtained.
The matrix resin of step a is acrylic resin, fluorocarbon resin, polyurethane resin and epoxy resin in mass ratio 1:1:
2:2 mix.
The preparation method of the pearl filler of step a is：Paris white was broken to 300 meshes, then by Paris white
End is mixed with water, stearmide, and 15min is heated and stirred at 55 DEG C, supernatant is taken after standing, continuously adds stearmide,
Secondary agitation 22min is carried out, is then allowed to stand, is taken sediment pressure-filteration drying, pearl filler can be obtained.
The ultrasonic disperse of step c is handled：In the case where 65 DEG C, ultrasonic power are 80W, ultrasonic disperse 11min.
The curing agent of step d is that polyamide, epoxy amine additives, fatty amine and triglycidyl isocyanurate press quality
Than 2:1:1:2 mix.
The compound additive of step d includes defoaming agent, levelling agent, anti-settling agent, antioxidant, surface modifier and diluent.
Embodiment 2
A kind of computer high efficiency and heat radiation coating, the raw material including following parts by weight：22 parts of matrix resin, 16 parts of titanium dioxide,
14 parts of graphene, 11 parts of pearl filler, 9 parts of aluminium nitride, 7 parts of magnesium nitride, 8-11 parts of silicon carbide, 10 parts of tetramethylethylenediamine,
7 parts of dispersing agent, 6 parts of curing agent and 8 parts of compound additive.
A kind of preparation method of computer high efficiency and heat radiation coating, including following preparation step：
A, matrix resin is imported in reaction kettle, is warming up to 160 DEG C, is heated to melting completely, adds graphene, calcium carbonate is filled out
Material imports in dispersion machine after mixing, to stir 0.7h under the revolving speed of 80r/min at 55 DEG C, obtains mixture one；
B, titanium dioxide, aluminium nitride, magnesium nitride and silicon carbide are mixed and is imported in ball mill, be milled to 500 meshes, and added
Tetramethylethylenediamine stirs evenly, and obtains mixture two；
C, mixture two, dispersing agent are added sequentially in mixture one, carry out ultrasonic disperse processing, obtains mixture three；
D, mixture three, curing agent and compound additive are imported together in double screw extruder, the melting extrusion at 185 DEG C,
It imports in mold, is cooled to room temperature, finished product can be obtained.
The matrix resin of step a is acrylic resin, fluorocarbon resin, polyurethane resin and epoxy resin in mass ratio 1:1:
2:2 mix.
The preparation method of the pearl filler of step a is：Paris white was broken to 300 meshes, then by Paris white
End is mixed with water, stearmide, and 12min is heated and stirred at 58 DEG C, supernatant is taken after standing, continuously adds stearmide,
Secondary agitation 20min is carried out, is then allowed to stand, is taken sediment pressure-filteration drying, pearl filler can be obtained.
The ultrasonic disperse of step c is handled：In the case where 65 DEG C, ultrasonic power are 80W, ultrasonic disperse 11min.
The curing agent of step d is that polyamide, epoxy amine additives, fatty amine and triglycidyl isocyanurate press quality
Than 2:1:1:2 mix.
The compound additive of step d includes defoaming agent, levelling agent, anti-settling agent, antioxidant, surface modifier and diluent.
Embodiment 3
A kind of computer high efficiency and heat radiation coating, the raw material including following parts by weight：22 parts of matrix resin, 15 parts of titanium dioxide,
13 parts of graphene, 12 parts of pearl filler, 12 parts of aluminium nitride, 10 parts of magnesium nitride, 8 parts of silicon carbide, tetramethylethylenediamine 9 part, point
9 parts of powder, 7 parts of curing agent and 6 parts of compound additive.
A kind of preparation method of computer high efficiency and heat radiation coating, including following preparation step：
A, matrix resin is imported in reaction kettle, is warming up to 160 DEG C, is heated to melting completely, adds graphene, calcium carbonate is filled out
Material imports in dispersion machine after mixing, to stir 0.6h under the revolving speed of 90r/min at 60 DEG C, obtains mixture one；
B, titanium dioxide, aluminium nitride, magnesium nitride and silicon carbide are mixed and is imported in ball mill, be milled to 500 meshes, and added
Tetramethylethylenediamine stirs evenly, and obtains mixture two；
C, mixture two, dispersing agent are added sequentially in mixture one, carry out ultrasonic disperse processing, obtains mixture three；
D, mixture three, curing agent and compound additive are imported together in double screw extruder, the melting extrusion at 195 DEG C,
It imports in mold, is cooled to room temperature, finished product can be obtained.
The matrix resin of step a is acrylic resin, fluorocarbon resin, polyurethane resin and epoxy resin in mass ratio 1:1:
2:2 mix.
The preparation method of the pearl filler of step a is：Paris white was broken to 400 meshes, then by Paris white
End is mixed with water, stearmide, and 12min is heated and stirred at 55 DEG C, supernatant is taken after standing, continuously adds stearmide,
Secondary agitation 22min is carried out, is then allowed to stand, is taken sediment pressure-filteration drying, pearl filler can be obtained.
The ultrasonic disperse of step c is handled：In the case where 65 DEG C, ultrasonic power are 80W, ultrasonic disperse 11min.
The curing agent of step d is that polyamide, epoxy amine additives, fatty amine and triglycidyl isocyanurate press quality
Than 2:1:1:2 mix.
The compound additive of step d includes defoaming agent, levelling agent, anti-settling agent, antioxidant, surface modifier and diluent.
Comparative example 1
It is detected using common heat radiation coating in the prior art.
The finished product for detecting above embodiments and comparative example preparation, obtains following detection data：
Table one：
| Time | Blank example（Without heat radiation coating） | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 |
| 0min computer chip temperature（℃） | 25.0 | 25.0 | 25.0 | 25.0 | 25.0 |
| 30min computer chip temperature（℃） | 43.6 | 38.2 | 38.5 | 37.7 | 40.3 |
| 60min computer chip temperature（℃） | 46.5 | 41.3 | 40.8 | 40.6 | 43.2 |
Table two：
| Project | Detection method | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 |
| Surface drying time（min） | GB/T1728 | 23 | 22 | 20 | 28 |
| Adhesive force（Hubbing, MPa） | GB/T5210-2006 | 8 | 8 | 9 | 6 |
| Wearability（Mg, 1000g/1000 turn） | GB/T1768-2006 | 42 | 42 | 41 | 48 |
| Impact resistance（Inch×mm×g） | GB/T1732-1993 | 50 | 50 | 50 | 50 |
| Resistance to neutral salt spray（2000h） | GB/T1771-1991 | It is unchanged | It is unchanged | It is unchanged | It blisters, fall off |
| Temperature tolerance（300 DEG C, 10 days） | GB/T1735-2009 | It is unchanged | It is unchanged | It is unchanged | It is unchanged |
| Acid resistance（The sulfuric acid of mass concentration 10% impregnates 30 days） | GB/T9274-1988 | It is unchanged | It is unchanged | It is unchanged | It blisters, fall off |
By table one, the resulting experimental data of table two, it can be deduced that, the properties of the finished product of preparation method preparation of the invention are aobvious
Write excellent in common product in the prior art, and the preferred preparation method in the embodiment of the present invention 3, obtain at
Moral character can be the most excellent.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although referring to aforementioned reality
Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features.It is all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of computer high efficiency and heat radiation coating, which is characterized in that the raw material including following parts by weight：Matrix resin 18-22
Part, 13-17 parts of titanium dioxide, 11-16 parts of graphene, 8-14 parts of pearl filler, 7-12 parts of aluminium nitride, 6-10 parts of magnesium nitride,
7-11 parts of silicon carbide, 6-10 parts of tetramethylethylenediamine, 7-12 parts of dispersing agent, 5-9 parts of curing agent and 4-8 parts of compound additive.
2. a kind of computer high efficiency and heat radiation coating according to claim 1, which is characterized in that the coating includes following
The raw material of parts by weight：19-22 parts of matrix resin, 13-16 parts of titanium dioxide, 11-14 parts of graphene, 11-14 parts of pearl filler,
9-12 parts of aluminium nitride, 7-10 parts of magnesium nitride, 8-11 parts of silicon carbide, 7-10 parts of tetramethylethylenediamine, 7-11 parts of dispersing agent, curing agent
6-9 parts and compound additive 6-8 parts.
3. a kind of computer high efficiency and heat radiation coating according to claim 1, which is characterized in that the coating includes following
The raw material of parts by weight：22 parts of matrix resin, 15 parts of titanium dioxide, 13 parts of graphene, 12 parts of pearl filler, 12 parts of aluminium nitride,
10 parts of magnesium nitride, 8 parts of silicon carbide, 9 parts of tetramethylethylenediamine, 9 parts of dispersing agent, 7 parts of curing agent and 6 parts of compound additive.
4. a kind of described in any item preparation methods of computer high efficiency and heat radiation coating of claim 1-3, which is characterized in that packet
Include following preparation step：
A, matrix resin is imported in reaction kettle, is warming up to 150-160 DEG C, is heated to melting completely, adds graphene, carbonic acid
Calcium filler is imported in dispersion machine after mixing, to stir 0.6-0.7h under the revolving speed of 80-90r/min at 55-60 DEG C, is obtained
To mixture one；
B, titanium dioxide, aluminium nitride, magnesium nitride and silicon carbide are mixed and is imported in ball mill, be milled to 500 meshes, and added
Tetramethylethylenediamine stirs evenly, and obtains mixture two；
C, mixture two, dispersing agent are added sequentially in mixture one, carry out ultrasonic disperse processing, obtains mixture three；
D, mixture three, curing agent and compound additive are imported together in double screw extruder, melts and squeezes at 180-195 DEG C
Out, it imports in mold, is cooled to room temperature, finished product can be obtained.
5. a kind of preparation method of computer high efficiency and heat radiation coating according to claim 4, which is characterized in that the step
The matrix resin of rapid a is acrylic resin, fluorocarbon resin, polyurethane resin and epoxy resin in mass ratio 1:1:2:2 mixing and
At.
6. a kind of preparation method of computer high efficiency and heat radiation coating according to claim 4, which is characterized in that the step
Suddenly the preparation method of the pearl filler of a is：Paris white was broken to 300-400 mesh, then by calcium carbonate powder and water,
Stearmide mixing, heats and is stirred at 55-58 DEG C 12-15min, take supernatant after standing, continuously add stearmide, into
Row secondary agitation 20-22min, is then allowed to stand, and takes sediment pressure-filteration drying, pearl filler can be obtained.
7. a kind of preparation method of computer high efficiency and heat radiation coating according to claim 6, which is characterized in that the step
Suddenly the preparation method of the pearl filler of a is：Paris white was broken to 400 meshes, then by calcium carbonate powder and water, tristearin
Amide mixing, heats and is stirred at 55 DEG C 12min, take supernatant after standing, continuously adds stearmide, carries out secondary agitation
22min is then allowed to stand, and takes sediment pressure-filteration drying, pearl filler can be obtained.
8. a kind of preparation method of computer high efficiency and heat radiation coating according to claim 4, which is characterized in that the step
The ultrasonic disperse of rapid c, which is handled, is：In the case where 65 DEG C, ultrasonic power are 80W, ultrasonic disperse 11min.
9. a kind of preparation method of computer high efficiency and heat radiation coating according to claim 4, which is characterized in that the step
The curing agent of rapid d is polyamide, epoxy amine additives, fatty amine and triglycidyl isocyanurate in mass ratio 2:1:1:2
It mixes.
10. a kind of preparation method of computer high efficiency and heat radiation coating according to claim 4, which is characterized in that described
The compound additive of step d includes defoaming agent, levelling agent, anti-settling agent, antioxidant, surface modifier and diluent.
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| CN110003770A (en) * | 2019-03-21 | 2019-07-12 | 上海鸿宝照明有限公司 | A kind of application method for the heat radiation coating of lampshade and the coating |
| CN110835455A (en) * | 2019-12-03 | 2020-02-25 | 石门成功高分子材料制造有限公司 | Preparation method of modified epoxy resin material |
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| CN107474698A (en) * | 2017-09-19 | 2017-12-15 | 江南载福粉末涂料（张家港）有限公司 | Anticorrosion heat-dissipation powder paint and preparation method thereof |
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| CN110003770A (en) * | 2019-03-21 | 2019-07-12 | 上海鸿宝照明有限公司 | A kind of application method for the heat radiation coating of lampshade and the coating |
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