CN105885482A - Heat radiation coating and preparation method thereof - Google Patents
Heat radiation coating and preparation method thereof Download PDFInfo
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- CN105885482A CN105885482A CN201610389940.3A CN201610389940A CN105885482A CN 105885482 A CN105885482 A CN 105885482A CN 201610389940 A CN201610389940 A CN 201610389940A CN 105885482 A CN105885482 A CN 105885482A
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- heat radiation
- radiation coating
- composition metal
- weight portion
- powder
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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
- 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
-
- 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
- C09D7/63—Additives non-macromolecular organic
-
- 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
- C09D7/65—Additives macromolecular
Abstract
A heat radiation coating is prepared from 75-80 parts by weight of composite metal alloy powder and 20-25 parts by weight of other ingredients. The composite metal alloy powder is prepared from, by weight, 1-3 parts of Si powder, 0.1-1 part of Ag and 96-98.9 parts of Sn. The other ingredients include one or more of tetraethoxysilane, organic silicon resin, antioxidant, inorganic filler and a solvent. The solvent is one or more of alcohol, benzene and ketone. The heat radiation coating is high in heat conduction coefficient, the binding force between the heat radiation coating and glass, ceramic, other inorganic nonmetallic materials and metal materials is high, and the coating can be widely applied to the inorganic nonmetallic materials and the metal materials to improve heat radiation performance.
Description
Technical field
The present invention relates to a kind of coating, be specifically related to a kind of composition metal heat radiation coating and preparation method thereof.
Background technology
In field of LED illumination, heat dissipation channel design is the importance that Design of Luminaires teacher needs to consider, example
Such as LEDbulb lamp, owing to the materials such as bulb material generally glass are made, so heat conductivity is less, therefore
Bulb (including bulb mouth) is not designed among heat dissipation channel.In order to avoid affecting dissipating of LED light source module
Heat.But this causes restriction, so that bulb lamp lamp socket trends towards heaviness to the design of bulb lamp lamp socket.Study carefully it
Reason is exactly the part that ball bubble cannot become heat dissipation channel.If able to make ball bubble become of heat dissipation channel
Point, then the lamp socket designs of bulb lamp by more flexibly and light fixture heat dispersion more preferably.
For this reason, it is contemplated that at tube face coating heat radiation coating to increase heat dispersion.But, at present
Common heat radiation coating typically use resin (how based on epoxy resin) and Inorganic Non-metallic Materials compound and
Becoming, owing to resin self-characteristic is limited, the final performance of obtained heat radiation coating is the best, such as heat conduction system
Number is less, it is impossible to meet radiating requirements.Additionally, the more important thing is, the most common heat radiation coating is made pottery with glass
Adhesion between the Inorganic Non-metallic Materials such as porcelain is not enough.
Summary of the invention
In order to overcome the defect of prior art, the purpose of the present invention, it is to provide a kind of heat radiation coating, the present invention
Heat radiation coating heat conductivity high, and and the Inorganic Non-metallic Materials such as glass and pottery and metal material between tie
Make a concerted effort strong, can be widely applied on Inorganic Non-metallic Materials and metal material to increase heat dispersion.
According to an aspect of the present invention, a kind of heat radiation coating, including following composition material:
The composition metal alloyed powder of 75-80 weight portion, other compositions of 20-25 weight portion；
Described composition metal alloyed powder is made up of the raw material of following weight ratio:
1-3 weight portion Si powder, 0.1-1 weight portion Ag, 96-98.9 weight portion Sn；
Other compositions described are tetraethyl orthosilicate, organic siliconresin, in antioxidant, inorganic filler, solvent
One or more；
Described solvent is one or more in alcohols, benzene class and ketone.
Owing to metal material is the good conductor of heat, such as silver is 429W/M K, and stannum is 67W/M K, uses gold
The heat radiation coating that genus material is made can be substantially improved on heat conductivility.Argent can promote material wettability
The strength of materials can be promoted.This heat radiation coating heat conductivity is high, and with glass and the Inorganic Non-metallic Materials such as ceramic
Between adhesion strong, it is possible to realize pottery and glass between connection.
Further, described organic siliconresin is chain alkyl methylsiloxane-dimethylsiloxane copolymer, poly-
Di-ethyl siloxane, one or more of vinyl methyl siloxane copolymer.
Further, described antioxidant is the solution of 0.4-60% of phytic acid.
Further, one or more during described inorganic filler is boron nitride and carborundum.
Further, one or more during described solvent is isopropanol, dimethylbenzene and acetone.
Further, the purity of described Si powder is more than or equal to 99.99%, and the purity of described Ag is more than or equal to
99.99%, the purity of described Sn is about or equal to 99.99%.
According to a further aspect in the invention, the method preparing above-mentioned heat radiation coating, comprise the steps:
Step one, preparation Sn-Si intermediate
By weight part ratio (9-10): Sn Yu Si of 1 is heated to 450 ± 10 DEG C, it is incubated 2h ± 0.5h, fully stirs
Sn-Si intermediate is obtained after mixing；
Step 2, preparation Sn-Ag alloy intermediate
By weight part ratio (4-5): Sn Yu Ag of 1 is heated to 800 ± 10 DEG C, it is incubated 3h ± 0.5h, fully stirs
Sn-Ag alloy intermediate is obtained after mixing；
Step 3, prepare metal alloy powder
Take weight ratio (1.6-66): the Sn-Si intermediate of 1 and Sn-Ag alloy intermediate, separately take 66.5-84.9
The pure Sn of weight portion, is heated to 500 ± 10 DEG C, is incubated 2h ± 0.5h, and melting obtains composition metal alloy, continues
And composition metal alloy is made composition metal alloyed powder；
Step 4, prepare composition metal heat radiation coating
By organic siliconresin, solvent, tetraethyl orthosilicate, antioxidant one or more be heated to 80 ± 10 DEG C,
High speed dispersion 20 ± 5min after stirring extremely dissolving, is cooled to room temperature,
The composition metal alloyed powder that step 3 prepares is added thereto and ball milling obtains composition metal heat radiation coating.
Further, described composition metal alloy is made composition metal alloy by the method using atomization in step 3
Powder.
Further, described atomization is centrifugal atomizing, aerosolization or sound atomization.
Further, ball milling speed described in step 4 is 200-400 rev/min.
Compared with prior art, the heat radiation coating heat conductivity of the present invention is high, and inorganic non-with glass and pottery etc.
Between metal material and metal material, adhesion is strong, can be widely applied to Inorganic Non-metallic Materials and metal material
To increase heat dispersion on Liao.
Detailed description of the invention
Composition and the preparation of heat radiation coating of the present invention of a kind of heat radiation coating of the present invention will be described by embodiment below
Method.
Embodiment 1
A kind of heat radiation coating, is made up of materials described below:
The composition metal alloyed powder of 75 weight portions, other compositions of 25 weight portions；
Wherein composition metal alloyed powder is made up of following weight part ratio: 1 weight portion Si powder, 1 weight portion Ag, and 98
Weight portion Sn；
The purity of above-mentioned Si powder is 99.99%；
The purity of above-mentioned argent is 99.99%；
The purity of above-mentioned metallic tin is 99.99%；
Other compositions and weight part ratio are polydiethylsiloxane 20.3 weight portion, tetraethyl orthosilicate 5 weight portion,
Phytic acid 0.5 weight portion, boron nitride 2.5 weight portion, dimethylbenzene 2.5 weight portion and acetone 2.5 weight portion
Mixed solvent forms.
The method preparing heat radiation coating:
Step one, preparation Sn-Si intermediate
Sn Yu Si powder by weight 10: 1 is weighed, is then placed in intermediate-frequency heating furnace being heated to 455 DEG C,
Insulation 2.1h, obtains Sn-Si intermediate after being sufficiently stirred for, standby；
Step 2, preparation Sn-Ag alloy intermediate
Sn Yu Ag by weight 5: 1 is weighed, is then placed in heating furnace being heated to 805 DEG C, insulation
3.1h, obtains Sn-Ag alloy intermediate after being sufficiently stirred for, standby；
Step 3, prepare composition metal alloyed powder
Take Sn-Si intermediate 11 weight portion (wherein Sn accounts for 10 weight portions, and Si accounts for 1 weight portion) in step one
With Sn-Ag alloy intermediate 6 weight portion (wherein Sn accounts for 5 weight portions, and Ag accounts for 1 weight portion) in step 2,
Separately take the 83 pure Sn of weight portion, put into stainless-steel pan melting, be heated to 502 DEG C, be incubated 2.2h, it is thus achieved that be multiple
Close metal alloy, utilize centrifugal atomizing that composition metal alloy is made composition metal alloyed powder.
Step 4, prepare composition metal heat radiation coating
Take polydiethylsiloxane 20.3 weight portion, tetraethyl orthosilicate 5 weight portion, phytic acid 0.5 weight
Part, boron nitride 2.5 weight portion, dimethylbenzene 2.5 weight portion and acetone 2.5 weight portion mixed solvent, be sequentially added into
Container heats, and temperature controls at 81 DEG C, and stirring, to dissolving also high speed dispersion 23 minutes, is cooled to room temperature.
Adding composition metal alloyed powder ball milling, ball milling speed controls at 200-400 rev/min, obtains compound gold
Belong to heat radiation coating.
The heat radiation coating performance parameter obtained is as shown in table 1:
Table 1
| Performance indications | Parameter |
| Density (g/cm3) | 4.28-4.31 |
| Fusing point (DEG C) | 281-290 |
| Heat conductivity (W/M K) | 50-56 |
| Hot strength (MPa) | 30-35 |
Embodiment 2
A kind of heat radiation coating, is made up of materials described below:
Composition metal alloyed powder 80 weight portion, other composition 20 weight portions；
Wherein composition metal alloyed powder is made up of following weight part ratio: 3 weight portion Si powder, 0.1 weight portion Ag,
96.9 weight portion Sn；
The purity of above-mentioned Si powder is 99.99%；
The purity of above-mentioned argent is 99.99%；
The purity of above-mentioned metallic tin is 99.99%；
Other compositions and weight part ratio are vinyl methyl siloxane copolymer 19 weight portion, phytic acid
0.375 weight portion, boron nitride 1.875 weight portion, dimethylbenzene 3.75 weight portion.
The method preparing heat radiation coating:
Step one, preparation Sn-Si intermediate
Sn Yu Si powder by weight 9: 1 is weighed, is then placed in intermediate-frequency heating furnace being heated to 455 DEG C,
Insulation 2.1h, obtains Sn-Si intermediate after being sufficiently stirred for, standby；
Step 2, preparation Sn-Ag alloy intermediate
Sn Yu Ag by weight 4: 1 is weighed, is then placed in heating furnace being heated to 805 DEG C, insulation
3.1h, obtains Sn-Ag alloy intermediate after being sufficiently stirred for, standby；
Step 3, prepare composition metal alloyed powder
Take Sn-Si intermediate 30 weight portion (wherein Sn accounts for 27 weight portions, and Si accounts for 3 weight portions) in step one
(wherein Sn accounts for 0.4 weight portion, and Ag accounts for 0.1 with Sn-Ag alloy intermediate 0.5 weight portion in step 2
Weight portion), separately take the 69.5 pure Sn of weight portion, put into stainless-steel pan melting, be heated to 502 DEG C, be incubated 2.2h,
Obtain composition metal alloy, utilize sound atomization that composition metal alloy is made composition metal alloyed powder.
Step 4, prepare composition metal heat radiation coating
Take vinyl methyl siloxane copolymer 19 weight portion, phytic acid 0.375 weight portion, boron nitride
1.875 weight portions, dimethylbenzene 3.75 weight portion, be sequentially added into container heating, and temperature controls at 81 DEG C, stirring
To dissolving also high speed dispersion 23 minutes, it is cooled to room temperature.Add composition metal alloyed powder ball milling, ball milling speed
Control at 200-400 rev/min, obtain composition metal heat radiation coating.
The heat radiation coating performance parameter obtained is as shown in table 1:
Table 1
| Performance indications | Parameter |
| Density (g/cm3) | 4.54-4.60 |
| Fusing point (DEG C) | 293-300 |
| Heat conductivity (W/M K) | 57-60 |
| Hot strength (MPa) | 30-35 |
The heat radiation coating heat conductivity of the present invention is high, and with glass and Inorganic Non-metallic Materials and the metal such as ceramic
Between material, adhesion is strong, can be widely applied on Inorganic Non-metallic Materials and metal material to increase thermal diffusivity
Energy.
Last it is noted that above-described each embodiment is merely to illustrate technical scheme, rather than
It is limited；Although the present invention being described in detail with reference to previous embodiment, the ordinary skill of this area
Personnel are it is understood that the technical scheme described in previous embodiment still can be modified by it, or to it
Middle part or all technical characteristic carry out equivalent；And these amendments or replacement, do not make appropriate technical solution
Essence depart from various embodiments of the present invention technical scheme scope.
Claims (10)
1. a heat radiation coating, it is characterised in that: include following composition material:
The composition metal alloyed powder of 75-80 weight portion, other compositions of 20-25 weight portion；
Described composition metal alloyed powder is made up of the raw material of following weight ratio:
1-3 weight portion Si powder, 0.1-1 weight portion Ag, 96-98.9 weight portion Sn；
Other compositions described are tetraethyl orthosilicate, organic siliconresin, in antioxidant, inorganic filler, solvent
One or more；
Described solvent is one or more in alcohols, benzene class and ketone.
Heat radiation coating the most according to claim 1, it is characterised in that: described organic siliconresin is long-chain
Alkyl methyl siloxane-dimethylsiloxane copolymer, polydiethylsiloxane, vinyl methyl siloxane is common
One or more of polymers.
Heat radiation coating the most according to claim 1, it is characterised in that: described antioxidant is inositol six
The solution of the 0.4-60% of phosphoric acid.
Heat radiation coating the most according to claim 1, it is characterised in that: described inorganic filler is boron nitride
With one or more in carborundum.
Heat radiation coating the most according to claim 1, it is characterised in that: described solvent be isopropanol, two
One or more in toluene and acetone.
Heat radiation coating the most according to claim 1, it is characterised in that: the purity of described Si powder is more than
Or equal to 99.99%, the purity of described Ag is more than or equal to 99.99%, the purity of described Sn more than or etc.
In 99.99%.
7. the method for heat radiation coating described in preparation any one of claim 1 to 6, it is characterised in that: under including
State step:
Step one, preparation Sn-Si intermediate
By weight part ratio (9-10): Sn Yu the Si powder of 1 is heated to 450 ± 10 DEG C, it is incubated 2h ± 0.5h, fills
Sn-Si intermediate is obtained after dividing stirring；
Step 2, preparation Sn-Ag alloy intermediate
By weight part ratio (4-5): Sn Yu Ag of 1 is heated to 800 ± 10 DEG C, it is incubated 3h ± 0.5h, fully
Sn-Ag alloy intermediate is obtained after stirring；
Step 3, prepare composition metal alloyed powder
Take weight ratio (1.6-66): the Sn-Si intermediate of 1 and Sn-Ag alloy intermediate, separately take 66.5-84.9
The pure Sn of weight portion, is heated to 500 ± 10 DEG C, is incubated 2h ± 0.5h, and melting obtains composition metal alloy,
Then composition metal alloy is made composition metal alloyed powder；
Step 4, prepare composition metal heat radiation coating
By organic siliconresin, solvent, tetraethyl orthosilicate, antioxidant one or more be heated to 80 ± 10 DEG C,
After stirring is extremely dissolved, high speed dispersion 20 ± 5min, it is cooled to room temperature,
The composition metal alloyed powder that step 3 prepares is added thereto and ball milling obtains composition metal heat radiation coating.
The method preparing heat radiation coating the most according to claim 7, it is characterised in that: step 3 is adopted
By the method for atomization, described composition metal alloy is made composition metal alloyed powder.
The method preparing heat radiation coating the most according to claim 8, it is characterised in that: described atomization is
Centrifugal atomizing, aerosolization or sound atomization.
The method preparing heat radiation coating the most according to claim 7, it is characterised in that: in step 4
Described ball milling speed is 200-400 rev/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610389940.3A CN105885482A (en) | 2016-06-03 | 2016-06-03 | Heat radiation coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610389940.3A CN105885482A (en) | 2016-06-03 | 2016-06-03 | Heat radiation coating and preparation method thereof |
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| Publication Number | Publication Date |
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| CN105885482A true CN105885482A (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610389940.3A Pending CN105885482A (en) | 2016-06-03 | 2016-06-03 | Heat radiation coating and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106752911A (en) * | 2016-12-12 | 2017-05-31 | 美嘉科技（镇江）有限公司 | A kind of busbar joint cooling processing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1978580A (en) * | 2005-12-09 | 2007-06-13 | 富准精密工业(深圳)有限公司 | Heat-conductive cream and electronic device using same |
| CN102554488A (en) * | 2010-12-16 | 2012-07-11 | 北京有色金属研究总院 | High-heat-conductivity solder paste for LED (light-emitting diode) packaging |
| CN103923437A (en) * | 2013-01-16 | 2014-07-16 | 富旺精密有限公司 | High-thermal-conductivity resin and manufacturing method thereof |
| CN104177884A (en) * | 2014-08-07 | 2014-12-03 | 宁波杰达模具机械有限公司 | Coloured heat conducting coating for LED lamp and preparation method of coloured heat conducting coating |
-
2016
- 2016-06-03 CN CN201610389940.3A patent/CN105885482A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1978580A (en) * | 2005-12-09 | 2007-06-13 | 富准精密工业(深圳)有限公司 | Heat-conductive cream and electronic device using same |
| CN102554488A (en) * | 2010-12-16 | 2012-07-11 | 北京有色金属研究总院 | High-heat-conductivity solder paste for LED (light-emitting diode) packaging |
| CN103923437A (en) * | 2013-01-16 | 2014-07-16 | 富旺精密有限公司 | High-thermal-conductivity resin and manufacturing method thereof |
| CN104177884A (en) * | 2014-08-07 | 2014-12-03 | 宁波杰达模具机械有限公司 | Coloured heat conducting coating for LED lamp and preparation method of coloured heat conducting coating |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106752911A (en) * | 2016-12-12 | 2017-05-31 | 美嘉科技（镇江）有限公司 | A kind of busbar joint cooling processing method |
| CN106752911B (en) * | 2016-12-12 | 2020-02-07 | 美嘉科技（镇江）有限公司 | Bus joint cooling treatment method |
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Application publication date: 20160824 |