CN103205075A - Heat radiation material, heat radiation structure, and preparation method and application thereof - Google Patents
Heat radiation material, heat radiation structure, and preparation method and application thereof Download PDFInfo
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Abstract
The invention provides inorganic heat radiation nano-grade material aqueous slurry, a heat radiation material comprising the inorganic heat radiation nano-grade material aqueous slurry, and preparation methods and applications thereof. The inorganic heat radiation nano-grade material aqueous slurry comprises the components comprising, by weight, 10-25 parts of an inorganic heat radiation nano-grade material, 0.5-20 parts of a modifier solution, and 50-100 parts of a solvent. The heat radiation material comprises, by weight, 10-30 parts of the inorganic heat radiation nano-grade material aqueous slurry, 40-80 parts of aqueous high-molecular resin, 20-30 parts of latex, 10-40 parts of a film-forming auxiliary agent, 0.5-5 parts of an auxiliary agent, and 5-20 parts of a diluting agent. With the application of the inorganic heat radiation nano-grade material aqueous slurry, compatibility and system dispersion stability of the inorganic heat radiation nano-grade material and the high-molecular material are improved, such that the unique heat radiation material with excellent heat radiation performance and with the inorganic heat radiation nano-grade material aqueous slurry is obtained.
Description
Technical field
The invention relates to a kind of heat sink material, structure, processing procedure and uses thereof, particularly about a kind of heat sink material that contains inorganic radiation nano material paste, structure, processing procedure and uses thereof.
Background technology
Thermally conductive material comprises conducting strip (Thermal Pad), heat-conducting cream (thermal grease) (Thermal Grease), heat conduction adhesive tape (Thermal Tape) etc., be that design is used to provide a best condition and carries out thermal conduction, usually be placed between heat generating component and the heat abstractor, be used for filling up space between the two, certain is conducted to heat on the heat abstractor fully by heat generating component.Can be applicable on the various product, for example: notebook computer, desktop computer, mainboard, memory module DDR, mainboard, hard disk, led module, PDP/LCD TV etc.The function of electronics from strength to strength now, yet volume is more and more littler really, this just makes heat dissipation problem become the outstanding problem that the planner has to face, known heat dissipation design only is to adorn several fans, open several louvres or add some radiator element, then be far from being enough the electrical appliance that but the volume for today is little, thermal value is big, must look for another way.
At present, heat sink material mainly contains three kinds, that is: heat-conducting silicone grease, heat radiation graphite flake, inorganic nano particle-high molecular composite heat dissipation material.Heat-conducting silicone grease is macromolecular material, the thermal resistance Chinese People's Anti-Japanese Military and Political College, level still is that vertical direction all is unfavorable for heat radiation, the heat radiation graphite flake has unique grain orientation, laminar structuredly can adapt to any surface well, along level and vertical direction uniform heat conduction, thermal impedance is little, can shield thermal source, but the processibility of heat radiation graphite flake (high temperature, high pressure typing) and applicability (graphite flake is crisp) are poor, are unfavorable for using.
And the inorganic nano particle-high molecular composite heat dissipation material is mainly by macromolecular material and heat radiation filler (mainly being made up of carbon material, metal or pottery etc.), the heat radiation granular size of coated material and the thermal conductivity that volume fraction all influences body.Heat radiation filler in the heat radiation coated material on the market mainly is graphite at present, carbon nanotube etc.; Yet above-mentioned heat radiation filler and macromolecular material is compatible relatively poor, and the nanometer heat sink material is easy to assemble, and this has all had a strong impact on its heat-conducting effect and stability.
Summary of the invention
The present invention overcomes the defective that exists in the aforementioned prior art, and a kind of inorganic radiation nano material water paste, the heat sink material that contains above-mentioned inorganic radiation nano material water paste and the preparation method and its usage of above-mentioned materials are provided.
In order to realize purpose of the present invention, the present invention adopts following technical scheme:
A kind of inorganic radiation nano material water paste comprises following components by part by weight:
Inorganic radiation nano material 10-25 weight part;
Properties-correcting agent 0.5-20 weight part;
Solvent 50-100 weight part.
Wherein, described modifier solution use properties-correcting agent and mixing diluents are formulated, and both amount ratios preferably are 1: 0.1-5 (weight ratio), and wherein, thinner preferably is selected from water, alcohol, tetrahydrofuran (THF) etc., and described alcohol preferably is selected from methyl alcohol, ethanol etc.When making the mixture of water and alcohol, water preferably is 1 with the relative consumption of alcohol: 0.5-1.
Preferably, described inorganic radiation nano material is selected from one of group of being made up of carbon back class nano material, metal nitride or oxide-based nano material and clipped wire subclass nano material or its combination.
Preferably the BET surface-area of inorganic radiation nano material is 25-2500m
2/ g preferably is 500-2000m
2/ g more preferably is 1000-1500m
2/ g.
The particle size range of described inorganic radiation nano material more preferably is 50-200nm preferably from 10-500nm, is 50-100nm best.
Described carbon back class nano material preferably is selected from nano carbon microsphere, carbon nanotube, Graphene etc.; Described metal nitride or oxide-based nano material are preferably from aluminium nitride, silicon nitride, titanium nitride, boron nitride, aluminum oxide, zinc oxide, titanium oxide, beryllium oxide, vanadium dioxide, zirconium white, niobium oxides etc.; Described clipped wire subclass nano material preferably is selected from copper powder, aluminium powder, silver powder, yellow gold, nickel etc.
Preferably the shell of described nano carbon microsphere is the multilayer graphite-structure, inside can be hollow structure, or the inner hollow structure contains weighting material, and this weighting material preferably is metal, metal oxide, metal nitride, metallic sulfide, metal boride, metal alloy etc.
Preferably, the composite mixture of two classes or three classes in described inorganic radiation nano material selection 1-15 weight part carbon back class nano material, 1-15 weight part metal nitride or oxide-based nano material and the 1-15 weight part clipped wire subclass nano material.
Preferably, described properties-correcting agent is macromole properties-correcting agent; This macromole properties-correcting agent preferably is selected from polyvinyl alcohol, polyoxyethylene glycol, organic silicon modified by polyether alkane, polyethylene wax, polyacrylic acid, polyacrylic ester, polyacrylate, poly-diethoxy (dimethyl) silane, the diamino polysiloxane, silicone-modified polyoxyethylene glycol, poly-(methyl ethylene) silane, poly-(1,3-divinyl-tetraphenyl) sily oxide-b-poly-(1,3-divinyl-tetraethoxy) poly-(dimethyl) silane of sily oxide-b-, Mierocrystalline cellulose, Walocel MT 20.000PV, hydroxy-end capped line style or star-type polymer etc., described polymkeric substance preferably is selected from polyacrylamide, poly(lactic acid), polycaprolactone, PTMC etc.; This macromole properties-correcting agent preferably molecular weight (Mw) more than or equal to 1000.
Preferably the described properties-correcting agent molecular weight (Mw) that contains 10-90wt% is the polyvinyl alcohol of 1000-5000 (be benchmark with the properties-correcting agent gross weight) for the molecular weight (Mw) of the polyacrylic acid of 10000-30000 and 90-10wt%.
Preferably described solvent selects one of group that free water, alcohol, tetrahydrofuran (THF) form or its combination, and described alcohol is preferably from methyl alcohol, ethanol or propylene glycol etc.When making the mixture of water and alcohol, water is 1 with the relative consumption of alcohol: 0.5-1.Preferably, solvent and aforementioned thinner can be identical or different.
Preferably the preparation method of described inorganic radiation nano material water paste is as follows: under nitrogen protection, the inorganic radiation nano material that takes by weighing the 10-25 weight part places the 50-100 parts by weight solvent, and ultrasound 10-100min is to being uniformly dispersed under the room temperature; Then stir or the ultrasound state under, utilize 5% ammoniacal liquor to regulate the pH value to 8-10, drip the properties-correcting agent (or its solution) of 2/3 (w/w) then with 2-4ml/ minute speed, dropwise that the back continues to stir or ultrasound 10-20min to being uniformly dispersed; Heat-up rate with 3-5 ℃/min is warming up to 50-60 ℃ then, speed with 2-4ml/ minute in this process drips remaining properties-correcting agent (or its solution), when being warming up to 50-60 ℃, dropwise, under this temperature, react 2-6h, ultra-high voltage nanometer clarifixator dispersion 30-120 minute, ultrasound disperseed 30-90 minute then, can obtain finely dispersed inorganic radiation nano material water paste.Wherein, total consumption of properties-correcting agent (or its solution) is the 0.5-20 weight part.
Wherein, inorganic radiation nano material water-based solid content of slurry preferably is 10-50wt%, further preferably 20-40wt%, the most preferably 20-25wt%.
The present invention also provides a kind of heat sink material that contains aforementioned inorganic radiation nano material water paste, and it comprises following components by part by weight:
Described aqueous high molecular resin preferably is selected from water-borne acrylic resin, waterborne polyurethane resin, water-based styrene-acrylic resin, water-based organosilicon acrylic resin, waterborne organic silicon resin, hot setting type waterborne organic silicon resin, aqueous acrylic modified urethane resin, acrylic resin modified by aqueous polyaminoester etc.
Described latex preferably is selected from acrylate latex, styrene-acrylic latex, carboxylic styrene butadiene latex etc.
Described film coalescence aid preferably is selected from alcohol ester compounds, preferably is alcohol ester 12.
Described auxiliary agent preferably is selected from one of group of being made up of dispersion agent, tinting material, sterilant, thickening material, flow agent, defoamer, frostproofer, wetting agent or its combination.
Wherein, flow agent preferably is the agent of vinylformic acid levelling, as: the BYK flow agent; Defoamer preferably is silicone antifoam agent, as: the JF-1148 defoamer; Thickening material preferably is acrylic thickener, as: the PT-669 thickening material.
Described thinner preferably is selected from butyl glycol ether, Diethylene Glycol butyl ether etc.
The present invention also provides a kind of preparation method who contains the heat sink material of aforementioned inorganic radiation nano material water paste, preparation process comprises: the aqueous high molecular resin that takes by weighing the 40-80 weight part earlier, add the film coalescence aid of 10-40 weight part and the thinner of 5-20 weight part successively, be warming up to 50-60 ℃, in the 5000-6000rpm high-speed stirring to being uniformly dispersed; Under stirring, the 3000-4000rpm middling speed splashes into the latex of 20-30 weight part and the inorganic radiation nano material water paste of 10-30 weight part successively under with the speed of 0.5-2.5ml/min then, continue to stir 10-90min to even phase, the auxiliary agent that then adds the 0.5-5 weight part obtains mixed solution, drops to room temperature in the 1000-2000rpm stirring at low speed and namely gets heat sink material.
Heat sink material of the present invention can adopt the mode of spraying, silk screen printing to process surface at matrix, and is simple for process.Described matrix preferably is selected from Copper Foil, aluminium foil, resin matrix etc.
The present invention more provides a kind of radiator structure that adopts aforementioned heat sink material, and it comprises: first base material; First heat dissipating layer is formed at the one side of this first base material, and this first heat dissipating layer is made up of heat sink material as claimed in claim 6; And a glue-line, be formed at this first base material with respect to the another side of this first heat dissipating layer.
Preferably, aforementioned radiator structure more comprises and is pasted with base stock on this glue-line.
Preferably, aforementioned radiator structure more comprises second base material and second heat dissipating layer, and this second heat dissipating layer is to be formed on this second base material, and this second base material is to see through this glue-line to bind this first base material.
Advantage of the present invention comprises: the inorganic radiation nano material water paste that adds in the heat sink material is to adopt properties-correcting agent that inorganic radiation nano material is carried out surface physics or chemically modified, the length of the structure by adjusting function macromole properties-correcting agent, hydrophilic and hydrophobic, molecule segment, make it carry out the reaction of optionally physical adsorption or grafting hydridization on inorganic radiation nano material (as: (wetting ability) carbon nano tube surface is rich in carboxyl) surface, surface at the nanometer heat sink material forms anhydride bond, ester bond or hydrogen bond etc., to improve the interface performance of inorganic radiation nano material; The use of inorganic radiation nano material water paste improved inorganic radiation nano material and macromolecular material between compatibility and body be dispersion stabilization, to obtain to have the heat sink material that contains inorganic radiation nano material water paste of unique heat dispersion excellence.
Description of drawings
Fig. 1 is the embodiment of the invention 2 samples 1 particle size distribution figures;
Fig. 2 is Comparative Examples 1 sample 2 particle size distribution figures of the present invention;
Fig. 3 is the dispersion stabilization spectrogram of the inorganic radiation nano material water paste of sample 1 and sample 2;
Fig. 4 is heat dispersion testing tool structural representation.
Fig. 5 is radiator structure (one's) sectional view;
Fig. 6 is radiator structure (twos') sectional view.
The primary clustering nomenclature:
Radiator structure 100,200
First heat dissipating layer 1,1a, 1b
Glue-line 3
Heat radiation lacquering 51
Hot coupling line probe 53
Pyrotoxin 54
Embodiment
Embodiment 1:
Under nitrogen protection, the hollow nano carbon microsphere (HCNC) that takes by weighing the 30-40nm of 10g places the 50g aqueous solvent, and ultrasound 30min is to being uniformly dispersed under the room temperature; Then under the ultrasound state, utilize 5% ammoniacal liquor to regulate the pH value to 8-10, drip properties-correcting agent polyvinyl alcohol (Mw=2000) aqueous solution (concentration is 50wt%) of 10g then with 3ml/ minute speed, dropwise the back and continue ultrasound 30min to being uniformly dispersed; Heat-up rate with 5 ℃/min is warming up to 60 ℃ then, in this process, drip the above-mentioned properties-correcting agent polyvinyl alcohol water solution of remaining 5g with 3ml/ minute speed, when being warming up to 60 ℃, dropwise, under this temperature, react 4h, ultra-high voltage nanometer clarifixator dispersion 60 minutes, ultrasound disperseed 60 minutes then, can obtain finely dispersed inorganic radiation nano material water paste.
Under nitrogen protection, the carbon nanotube (product code numbering: IMC4, down together) that takes by weighing the 10-30nm of 10g places the 100g aqueous solvent, and ultrasound 30min is to being uniformly dispersed under the room temperature; Then under the ultrasound state, utilize 5% ammoniacal liquor to regulate the pH value to 8-10, drip properties-correcting agent polyvinyl alcohol (Mw=2000) aqueous solution (concentration is 50wt%) of 10g then with 4ml/ minute speed, dropwise the back and continue ultrasound 30min to being uniformly dispersed; Heat-up rate with 3 ℃/min is warming up to 50 ℃ then, in this process, drip the above-mentioned properties-correcting agent polyvinyl alcohol water solution of remaining 5g with 4ml/ minute speed, when being warming up to 50 ℃, dropwise, under this temperature, react 6h, ultra-high voltage nanometer clarifixator dispersion 60 minutes, ultrasound disperseed 60 minutes then, can obtain finely dispersed inorganic radiation nano material water paste.
Under nitrogen protection, the nano aluminum nitride (product code numbering: DK331, down together) that takes by weighing the 30nm of 25g places the 75g aqueous solvent, and ultrasound 20min is to being uniformly dispersed under the room temperature; Under the ultrasound state, utilize 5% ammoniacal liquor adjusting pH value to 8 then, drip properties-correcting agent polyacrylic acid (Mw=3000) aqueous solution (concentration is 50wt%) of 12g then with 2ml/ minute speed, dropwise the back and continue ultrasound 15min to being uniformly dispersed; Heat-up rate with 3 ℃/min is warming up to 60 ℃ then, in this process, drip the above-mentioned properties-correcting agent polyacrylic acid aqueous solution of remaining 6g with 2ml/ minute speed, when being warming up to 60 ℃, dropwise, under this temperature, react 3h, ultra-high voltage nanometer clarifixator dispersion 120 minutes, ultrasound disperseed 90 minutes then, can obtain finely dispersed inorganic radiation nano material water paste.
The nano aluminum nitride of the 30nm of 25g among the aluminium powder of the 50nm of use 25g (product code numbering: DK102, down together) the alternate embodiment 3 described preparation methods, other step is identical with the preparation method of embodiment 3.
The carbon nanotube of the 10-30nm of 10g among the mixture replacing embodiment 2 described preparation methods of the nano aluminum nitride of the carbon nanotube of the 10-30nm of use 5g and the 30nm of 5g, other step is identical with the preparation method of embodiment 2.
Embodiment 6
(product code numbering: DK404) and the carbon nanotube of the 10-30nm of the 10g among the mixture replacing embodiment 2 described preparation methods of the nano aluminum nitride of the 30nm of 5g, other step is identical with the preparation method of embodiment 2 to use the zinc oxide of the 30nm of 5g.
Embodiment 7
The carbon nanotube of the 10-30nm of 10g among the mixture replacing embodiment 2 described preparation methods of the nano aluminum nitride of the aluminium powder of the 50nm of use 5g and the 30nm of 5g, other step is identical with the preparation method of embodiment 2.
Embodiment 8
The carbon nanotube of the 10-30nm of 10g among the mixture replacing embodiment 2 described preparation methods of the carbon nanotube of the nano aluminum nitride of the aluminium powder of the 50nm of use 2g, the 30nm of 3g and the 10-30nm of 5g, other step is identical with the preparation method of embodiment 2.
Embodiment 9
The molecular weight (Mw) that uses 20wt% is that the molecular weight (Mw) of 10000 polyacrylic acid and 80wt% is the properties-correcting agent polyvinyl alcohol (Mw=2000) among the mixture replacing embodiment 2 described preparation methods of 1000 polyvinyl alcohol, and other step is identical with the preparation method of embodiment 2.
Comparative Examples 1
Use the properties-correcting agent polyvinyl alcohol (MW=2000) among the small molecules properties-correcting agent OP-10 alternate embodiment 2 described preparation methods, other step is identical with the preparation method of embodiment 2.
Sample 1 (embodiment 2 products) is seen Fig. 1 and Fig. 2 respectively with sample 2 (Comparative Examples 1 product) particle size distribution figure, it relatively sees Fig. 3 for details, the dispersion stabilization of sample 1 is significantly better than sample 2 as can be seen from Fig. 3, and the average dynamic particle diameter of sample 1 is 95nm, and the average dynamic particle diameter of sample 2 is 124nm; By to data relatively, adopt water paste dispersiveness, the stability of the preparation of macromole properties-correcting agent significantly to increase.Simultaneously, embodiment 1, and 3-9 also has identical performance.
Embodiment 10:
Take by weighing earlier 40g aqueous high molecular resin water-borne acrylic resin (product code numbering: DT-150), add the film coalescence aid alcohol ester 12 of 10g and the thinner butyl glycol ether of 10g successively, be warming up to 60 ℃, in the 6000rpm high-speed stirring to being uniformly dispersed; Under stirring, the 4000rpm middling speed splashes into the inorganic radiation nano material water paste of embodiment 2 preparations of the styrene-acrylic latex of 20g and 30g then under with the speed of 2ml/min successively, continue to stir 30min to even phase, then add the acrylic thickener (PT-699) of 2g, the vinylformic acid levelling agent (BYK flow agent) of 2g, polysiloxane silicone antifoam agent (JF-1148) the acquisition mixed solution of 1g, drop to room temperature in the 1000rpm stirring at low speed and namely get heat sink material (material 1).
Embodiment 11:
Use the raw material " the inorganic radiation nano material water pastes of embodiment 2 preparations " among the water paste alternate embodiment 10 described preparation methods of Comparative Examples 1 preparation, preparation method's identical (material 2) of other step and embodiment 10.
Embodiment 12:
Use the raw material " the inorganic radiation nano material water pastes of embodiment 2 preparations " among the water paste alternate embodiment 10 described preparation methods of embodiment 5 preparations, preparation method's identical (material 3) of other step and embodiment 10.
Embodiment 13:
Use the raw material " the inorganic radiation nano material water pastes of embodiment 2 preparations " among the water paste alternate embodiment 10 described preparation methods of embodiment 8 preparations, preparation method's identical (material 4) of other step and embodiment 10.
Material 1, material 2, material 3 to different heat sink material preparations are tested with the heat dispersion of material 4, and testing method is as follows:
The experiment facility comprise: thermostatically controlled tank, power supply unit, temperature-sensitive recorder (hot coupling line probe 53), and pyrotoxin 54.Wherein, pyrotoxin is the 40X40 metal electric heating membrane.Part-structure as shown in Figure 4.
Zu heating carrier is tinplate 52 in contrast, and its test mode (control group) is: 1. thermostat container is set in 40 degree Celsius, inserts analyte; 2. pyrotoxin is placed heating carrier (tinplate) bottom; 3. use power supply unit output 5W to pyrotoxin.
Be tinplate single face spraying above-mentioned materials 1-4 (heat radiation lacquering 51) as the heating carrier of experimental group, its test mode (control group) is 1. thermostat container to be set in 40 degree Celsius, inserts analyte; 2. pyrotoxin is placed heating carrier (spraying of tinplate single face) bottom; 3. use power supply unit output 5W to pyrotoxin.
Test result sees table one for details.From table one as seen, the heat sink material 2 that is better than adopting the preparation of OP-10 modified carbon nanotube by the heat dispersion that adopts polyvinyl alcohol that carbon nanotube is carried out the sample 1 preparation heat sink material 1 of modification, as: during heating 90min, material 1 differs about 1.5 ℃ with the heat source temperature of material 2, illustrates that macromole properties-correcting agent is good to the modified effect of carbon nanotube; Material 1 is with the difference of material 3, material 4, material 3 adopts the composite of carbon nanotube and nano aluminum nitride, material 4 is the composite of carbon nanotube, nano aluminum nitride and nanometer aluminium powder, during heating 90min, material 3, material 4 reach 8.8 ℃ and 9.4 ℃ respectively with the thermal source temperature difference of blank sample, 5.3 ℃ of the thermal source temperature difference that are better than material 1 and blank sample, the heat sink material that 3.8 ℃ of the thermal source temperature difference that more are better than material 2 and blank sample, explanation simultaneously contain the inorganic radiation nano particle of Compositional type obviously is better than containing the heat sink material of the inorganic radiation nano particle of single type.
The heat dispersion of material 1, material 2, material 3, material 4 relatively among table one, the embodiment 10-13.
Embodiment 14: radiator structure ()
Utilize aforementioned heat sink material, can be made into different radiator structures.Shown in the 5th figure, present embodiment discloses a kind of radiator structure 100, it comprises: first heat dissipating layer 1, first base material 2, glue-line 3 and base stock 4, and wherein first heat dissipating layer 1 is formed at the one side of first base material 2, and glue-line 3 is formed at first base material 2 with respect to the another side of first heat dissipating layer 1.First heat dissipating layer 1 is made up of above-mentioned heat sink material, the weight part that it is included and component as previously mentioned, in this no longer repeat specification.The described radiator structure 100 of present embodiment can be a kind of heat radiation adhesive tape in practical application, or other are used for the concrete structure of heat conduction (heat radiation).
Embodiment 15:: radiator structure (two)
In the present embodiment, other discloses a kind of similar sandwich and has the radiator structure of two-layer heat dissipating layer.Shown in the 6th figure, radiator structure 200 comprises: the first heat dissipating layer 1a, the second heat dissipating layer 1b, the first base material 2a, the second base material 2b and glue-line 3, wherein the first heat dissipating layer 1a is formed at the one side of the first base material 2a, the second heat dissipating layer 1b is formed on the second base material 2b, and the second base material 2b sees through glue-line 3 to bind the first base material 2a.The first heat dissipating layer 1a, the second heat dissipating layer 1b are made up of above-mentioned heat sink material, the weight part that it is included and component as previously mentioned, in this no longer repeat specification.The described radiator structure 200 of present embodiment can be a kind of radiator element in practical application, or other are used for the concrete structure of heat conduction (heat radiation).
As seen from the above embodiment, utility value on the true tool industry of heat sink material provided by the present invention, radiator structure and preparation method thereof, only above narration only is preferred embodiment explanation of the present invention, allly be skillful in this skill person when can doing other all improvement according to above-mentioned explanation, only these changes still belong in spirit of the present invention and the following claim that defines.
Claims (44)
1. inorganic radiation nano material water paste comprises following components by part by weight:
The inorganic radiation nano material of 10-25 weight part;
0.5-20 the modifier solution of weight part;
The solvent of 50-100 weight part;
Wherein, this modifier solution is formulated with properties-correcting agent and mixing diluents, and both weight ratios preferably are 1: 0.1-5.
2. inorganic radiation nano material water paste according to claim 1, wherein this inorganic radiation nano material is to be selected from one of group of being made up of carbon back class nano material, metal nitride or oxide-based nano material and clipped wire subclass nano material or its combination, and the BET surface-area of this inorganic radiation nano material is 25-2500m
2/ g, the particle size range of this inorganic radiation nano material preferably is 10-500nm.
3. inorganic radiation nano material water paste according to claim 2, the BET surface-area of this inorganic radiation nano material is 500-2000m
2/ g, the particle size range of this inorganic radiation nano material preferably is 50-200nm.
4. inorganic radiation nano material water paste according to claim 2, the BET surface-area of this inorganic radiation nano material is 1000-1500m
2/ g, the particle size range of this inorganic radiation nano material preferably is 50-100nm.
5. inorganic radiation nano material water paste according to claim 1, wherein this inorganic radiation nano material is two classes in the clipped wire subclass nano material of the metal nitride of the carbon back class nano material of selecting the 1-15 weight part for use, 1-15 weight part or oxide-based nano material and 1-15 weight part or the composite mixture of three classes.
6. inorganic radiation nano material water paste according to claim 2, wherein this carbon back class nano material is selected from nano carbon microsphere, carbon nanotube, Graphene; This metal nitride or oxide-based nano material are selected from aluminium nitride, silicon nitride, titanium nitride, boron nitride, aluminum oxide, zinc oxide, titanium oxide, beryllium oxide, vanadium dioxide, zirconium white, niobium oxides; This clipped wire subclass nano material is selected from copper powder, aluminium powder, silver powder, yellow gold, nickel.
7. inorganic radiation nano material water paste according to claim 1, this properties-correcting agent is macromole properties-correcting agent; This macromole properties-correcting agent preferably is selected from polyvinyl alcohol, polyoxyethylene glycol, organic silicon modified by polyether alkane, polyethylene wax, polyacrylic acid, polyacrylic ester, polyacrylate, poly-diethoxy (dimethyl) silane, diamino polysiloxane, silicone-modified polyoxyethylene glycol, poly-(methyl ethylene) silane, poly-(1,3-divinyl-tetraphenyl) poly-(dimethyl) silane of poly-(1, the 3-divinyl-tetraethoxy) sily oxide-b-of sily oxide-b-, Mierocrystalline cellulose, Walocel MT 20.000PV, hydroxy-end capped line style or star-type polymer.
8. inorganic radiation nano material water paste according to claim 1, wherein this properties-correcting agent molecular weight (Mw) of containing 10-90wt% is the polyvinyl alcohol of 1000-5000 for the molecular weight (Mw) of the polyacrylic acid of 10000-30000 and 90-10wt%, and it is to be benchmark with the properties-correcting agent gross weight.
9. inorganic radiation nano material water paste according to claim 1, described solvent are to select one of group that free water, alcohol, tetrahydrofuran (THF) form or its combination, and should alcohol preferably be methyl alcohol, ethanol, propylene glycol.
10. inorganic radiation nano material water paste according to claim 1, wherein this inorganic radiation nano material water-based solid content of slurry is 10-50wt%.
11. the preparation method of an inorganic radiation nano material water paste, its step comprises: under nitrogen protection, the inorganic radiation nano material that takes by weighing the 10-25 weight part places the 50-100 parts by weight solvent, and ultrasound 10-100min is to being uniformly dispersed under the room temperature; Stir or the ultrasound state under, utilize 5% ammoniacal liquor to regulate the pH value to 8-10, drip the modifier solution that accounts for total consumption 2/3 (w/w) with 2-4ml/ minute speed, dropwise that the back continues to stir or ultrasound 10-20min to being uniformly dispersed; Heat-up rate with 3-5 ℃/min is warming up to 50-60 ℃, speed with 2-4ml/ minute in this process drips remaining modifier solution, when being warming up to 50-60 ℃, dropwise, under this temperature, react 2-6h, disperseed 30-90 minute with ultra-high voltage nanometer clarifixator dispersion 30-120 minute, ultrasound, obtain finely dispersed inorganic radiation nano material water paste; Wherein, total consumption of modifier solution is the 0.5-20 weight part.
12. a heat sink material, it comprises following components by part by weight:
The according to claim 1 inorganic radiation nano material water paste of 10-30 weight part;
The aqueous high molecular resin of 40-80 weight part;
The latex of 20-30 weight part;
The film coalescence aid of 10-40 weight part;
0.5-5 the auxiliary agent of weight part; And
The thinner of 5-20 weight part.
13. heat sink material according to claim 12, wherein this aqueous high molecular resin is selected from one of group that is made up of water-borne acrylic resin, waterborne polyurethane resin, water-based styrene-acrylic resin, water-based organosilicon acrylic resin, waterborne organic silicon resin, hot setting type waterborne organic silicon resin, aqueous acrylic modified urethane resin, acrylic resin modified by aqueous polyaminoester.
14. heat sink material according to claim 12, wherein this latex is selected from one of group that is made up of acrylate latex, styrene-acrylic latex, carboxylic styrene butadiene latex.
15. heat sink material according to claim 12, wherein this film coalescence aid is selected from alcohol ester compounds.
16. heat sink material according to claim 12, wherein this auxiliary agent is to be selected from one of group of being made up of dispersion agent, tinting material, sterilant, thickening material, flow agent, defoamer, frostproofer, wetting agent or its combination.
17. heat sink material according to claim 12, wherein this inorganic radiation nano material is to be selected from one of group of being made up of carbon back class nano material, metal nitride or oxide-based nano material and clipped wire subclass nano material or its combination, and the BET surface-area of this inorganic radiation nano material is 25-2500m
2/ g, the particle size range of this inorganic radiation nano material preferably is 10-500nm.
18. heat sink material according to claim 17, the BET surface-area of this inorganic radiation nano material is 500-2000m
2/ g, the particle size range of this inorganic radiation nano material preferably is 50-200nm.
19. heat sink material according to claim 17, the BET surface-area of this inorganic radiation nano material is 1000-1500m
2/ g, the particle size range of this inorganic radiation nano material preferably is 50-100nm.
20. heat sink material according to claim 12, wherein this inorganic radiation nano material is two classes in the clipped wire subclass nano material of the metal nitride of the carbon back class nano material of selecting the 1-15 weight part for use, 1-15 weight part or oxide-based nano material and 1-15 weight part or the composite mixture of three classes.
21. heat sink material according to claim 17, wherein this carbon back class nano material is selected from nano carbon microsphere, carbon nanotube, Graphene; This metal nitride or oxide-based nano material are selected from aluminium nitride, silicon nitride, titanium nitride, boron nitride, aluminum oxide, zinc oxide, titanium oxide, beryllium oxide, vanadium dioxide, zirconium white, niobium oxides; This clipped wire subclass nano material is selected from copper powder, aluminium powder, silver powder, yellow gold, nickel.
22. heat sink material according to claim 12, this properties-correcting agent are macromole properties-correcting agent; This macromole properties-correcting agent preferably is selected from polyvinyl alcohol, polyoxyethylene glycol, organic silicon modified by polyether alkane, polyethylene wax, polyacrylic acid, polyacrylic ester, polyacrylate, poly-diethoxy (dimethyl) silane, diamino polysiloxane, silicone-modified polyoxyethylene glycol, poly-(methyl ethylene) silane, poly-(1,3-divinyl-tetraphenyl) poly-(dimethyl) silane of poly-(1, the 3-divinyl-tetraethoxy) sily oxide-b-of sily oxide-b-, Mierocrystalline cellulose, Walocel MT 20.000PV, hydroxy-end capped line style or star-type polymer.
23. heat sink material according to claim 12, wherein this properties-correcting agent molecular weight (Mw) of containing 10-90wt% is the polyvinyl alcohol of 1000-5000 for the molecular weight (Mw) of the polyacrylic acid of 10000-30000 and 90-10wt%, and it is to be benchmark with the properties-correcting agent gross weight.
24. heat sink material according to claim 12, described solvent are to select one of group that free water, alcohol, tetrahydrofuran (THF) form or its combination, and should alcohol preferably be methyl alcohol, ethanol, propylene glycol.
25. heat sink material according to claim 12, wherein this inorganic radiation nano material water-based solid content of slurry is 10-50wt%.
26. the preparation method of a heat sink material as claimed in claim 12, its step comprises: the aqueous high molecular resin that takes by weighing the 40-80 weight part, add the film coalescence aid of 10-40 weight part and the thinner of 5-20 weight part successively, be warming up to 50-60 ℃, in the 5000-6000rpm high-speed stirring to being uniformly dispersed; Under stirring, the 3000-4000rpm middling speed splashes into the latex of 20-30 weight part and the inorganic radiation nano material water paste of 10-30 weight part successively under with the speed of 0.5-2.5ml/min then, continue to stir 10-90min to even phase, the auxiliary agent that then adds the 0.5-5 weight part obtains mixed solution, drops to room temperature in the 1000-2000rpm stirring at low speed and namely gets heat sink material.
27. the purposes of a heat sink material as claimed in claim 12, it comprises that the mode that adopts spraying or silk screen printing is with the surface of this heat sink material processing at matrix.
28. purposes according to claim 27, wherein this matrix is selected from one of group that is made up of Copper Foil, aluminium foil, resin matrix.
29. a radiator structure, it comprises:
First base material;
First heat dissipating layer is formed at the one side of this first base material, and this first heat dissipating layer is made up of heat sink material as claimed in claim 12; And
Glue-line is formed at this first base material with respect to the another side of this first heat dissipating layer.
30. radiator structure according to claim 29 more comprises being pasted with base stock on this glue-line.
31. radiator structure according to claim 29 more comprises second base material and second heat dissipating layer, this second heat dissipating layer is to be formed on this second base material, and this second base material is to see through this glue-line to bind this first base material.
32. radiator structure according to claim 29, wherein this aqueous high molecular resin is selected from one of group that is made up of water-borne acrylic resin, waterborne polyurethane resin, water-based styrene-acrylic resin, water-based organosilicon acrylic resin, waterborne organic silicon resin, hot setting type waterborne organic silicon resin, aqueous acrylic modified urethane resin, acrylic resin modified by aqueous polyaminoester.
33. radiator structure according to claim 29, wherein this latex is selected from one of group that is made up of acrylate latex, styrene-acrylic latex, carboxylic styrene butadiene latex.
34. radiator structure according to claim 29, wherein this film coalescence aid is selected from alcohol ester compounds.
35. radiator structure according to claim 29, wherein this auxiliary agent is to be selected from one of group of being made up of dispersion agent, tinting material, sterilant, thickening material, flow agent, defoamer, frostproofer, wetting agent or its combination.
36. radiator structure according to claim 29, wherein this inorganic radiation nano material is to be selected from one of group of being made up of carbon back class nano material, metal nitride or oxide-based nano material and clipped wire subclass nano material or its combination, and the BET surface-area of this inorganic radiation nano material is 25-2500m
2/ g, the particle size range of this inorganic radiation nano material preferably is 10-500nm.
37. radiator structure according to claim 36, the BET surface-area of this inorganic radiation nano material is 500-2000m
2/ g, the particle size range of this inorganic radiation nano material preferably is 50-200nm.
38. radiator structure according to claim 36, the BET surface-area of this inorganic radiation nano material is 1000-1500m
2/ g, the particle size range of this inorganic radiation nano material preferably is 50-100nm.
39. radiator structure according to claim 29, wherein this inorganic radiation nano material is two classes in the clipped wire subclass nano material of the metal nitride of the carbon back class nano material of selecting the 1-15 weight part for use, 1-15 weight part or oxide-based nano material and 1-15 weight part or the composite mixture of three classes.
40. radiator structure according to claim 36, wherein this carbon back class nano material is selected from nano carbon microsphere, carbon nanotube, Graphene; This metal nitride or oxide-based nano material are selected from aluminium nitride, silicon nitride, titanium nitride, boron nitride, aluminum oxide, zinc oxide, titanium oxide, beryllium oxide, vanadium dioxide, zirconium white, niobium oxides; This clipped wire subclass nano material is selected from copper powder, aluminium powder, silver powder, yellow gold, nickel.
41. radiator structure according to claim 29, this properties-correcting agent are macromole properties-correcting agent; This macromole properties-correcting agent preferably is selected from polyvinyl alcohol, polyoxyethylene glycol, organic silicon modified by polyether alkane, polyethylene wax, polyacrylic acid, polyacrylic ester, polyacrylate, poly-diethoxy (dimethyl) silane, diamino polysiloxane, silicone-modified polyoxyethylene glycol, poly-(methyl ethylene) silane, poly-(1,3-divinyl-tetraphenyl) poly-(dimethyl) silane of poly-(1, the 3-divinyl-tetraethoxy) sily oxide-b-of sily oxide-b-, Mierocrystalline cellulose, Walocel MT 20.000PV, hydroxy-end capped line style or star-type polymer.
42. radiator structure according to claim 29, wherein this properties-correcting agent molecular weight (Mw) of containing 10-90wt% is the polyvinyl alcohol of 1000-5000 for the molecular weight (Mw) of the polyacrylic acid of 10000-30000 and 90-10wt%, and it is to be benchmark with the properties-correcting agent gross weight.
43. radiator structure according to claim 29, described solvent are to select one of group that free water, alcohol, tetrahydrofuran (THF) form or its combination, and should alcohol preferably be methyl alcohol, ethanol, propylene glycol.
44. radiator structure according to claim 29, wherein this inorganic radiation nano material water-based solid content of slurry is 10-50wt%.
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