CN102850911A - Graphene oxide heat dissipation and cooling coating and preparation method thereof - Google Patents
Graphene oxide heat dissipation and cooling coating and preparation method thereof Download PDFInfo
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- 238000000576 coating method Methods 0.000 title claims abstract description 58
- 239000011248 coating agent Substances 0.000 title claims abstract description 57
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 47
- 238000001816 cooling Methods 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 230000017525 heat dissipation Effects 0.000 title abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 122
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 37
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000011347 resin Substances 0.000 claims abstract description 29
- 229920005989 resin Polymers 0.000 claims abstract description 29
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 29
- 239000010703 silicon Substances 0.000 claims abstract description 29
- 239000002904 solvent Substances 0.000 claims abstract description 20
- 239000002318 adhesion promoter Substances 0.000 claims abstract description 19
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 44
- 239000006185 dispersion Substances 0.000 claims description 24
- 239000013530 defoamer Substances 0.000 claims description 18
- 229920001296 polysiloxane Polymers 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 10
- 238000005516 engineering process Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 239000004593 Epoxy Substances 0.000 claims description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 6
- 125000001931 aliphatic group Chemical group 0.000 claims description 6
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims description 6
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 6
- 239000000839 emulsion Substances 0.000 claims description 6
- 150000004678 hydrides Chemical class 0.000 claims description 6
- 239000012948 isocyanate Substances 0.000 claims description 6
- 150000002513 isocyanates Chemical class 0.000 claims description 6
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 6
- 229920005646 polycarboxylate Polymers 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000012986 modification Methods 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims description 3
- 229920001225 polyester resin Polymers 0.000 claims description 3
- 239000004645 polyester resin Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 10
- 230000007613 environmental effect Effects 0.000 abstract description 7
- 239000002518 antifoaming agent Substances 0.000 abstract 1
- 239000002270 dispersing agent Substances 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 20
- 229910001220 stainless steel Inorganic materials 0.000 description 16
- 239000010935 stainless steel Substances 0.000 description 16
- 230000005855 radiation Effects 0.000 description 12
- 238000012360 testing method Methods 0.000 description 10
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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Abstract
A graphene oxide heat dissipation and cooling coating is a composition of an A agent and a B agent with a weight ratio of 4:1, wherein the A agent comprises the following raw materials by weight: 30-60 parts of aqueous organic silicon resin, 2-5 parts of graphene oxide, 1-3 parts of a dispersant, 1-2 parts of an aqueous levelling agent, 0.5-1.5 parts of an aqueous antifoaming agent, 1-2 parts of an adhesion promoter, and 30-60 parts of a solvent; the B agent comprises the following raw materials by weight: 20-30 parts of an aqueous curing agent, and 70-80 parts of ethanol; the preparation method comprises the following steps: firstly preparing the A agent and the B agent, and then well mixing the A and B agents according to a weight ratio of 4:1 to obtain the graphene oxide heat dissipation and cooling coating; according to the invention, graphene oxide with high thermal conductivity and radiance is adopted as a main heat dissipation medium, and is uniformly dispersed in resin and solvents to prepare the coating; when the coating is uniformly coated on a surface of a heat dissipation device, the heat dissipation area can be increased, and thus the heat dissipation effect is improved; and the coating has the characteristics of high efficiency, convenience, green and environmental protection.
Description
Technical field
The present invention relates to a kind of graphene oxide radiating and cooling coating and preparation method thereof, mainly be applicable in the Hydraulic and Hydro-Power Engineering.
Background technology
Along with in the global range to the pay attention to day by day of environmental problem and energy problem, traditional coating can't satisfy the demand of reality, environmental friendliness coating and energy-saving coatings are the directions that development is made great efforts in present countries in the world.
At present, heat radiation coating all is to adopt expensive heat-transfer medium as filler, is unfavorable for the application of the mass-producing of coating.Therefore, it is very urgent to seek a kind of environmental protection and cheap radiating and cooling coating.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of good heat dissipation effect, environmental protection and cheap graphene oxide radiating and cooling coating and preparation method thereof for existing problem in the prior art.
The technical solution adopted in the present invention is: graphene oxide radiating and cooling coating, it is characterized in that this coating is the composition of A agent and B agent, and both weight ratios are 4:1, wherein,
The A agent is comprised of the raw material of following weight percent:
Waterborne organic silicon resin 30 ~ 60
Graphene oxide 2 ~ 5
Dispersion agent 1 ~ 3
Water-based flow agent 1 ~ 2
Water-based defoamer 0.5 ~ 1.5
Adhesion promoter 1 ~ 2
Solvent 30 ~ 60
The B agent is comprised of the raw material of following weight percent:
The flash-point of described waterborne organic silicon resin is greater than 100 ℃; Dispersion agent is polycarboxylate sodium's type dispersion agent; The type of water-based flow agent is polyether-modified organopolysiloxane; The water-based defoamer is aqueous emulsion of dimethyl polysiloxane fluid; The type of adhesion promoter is epoxy radicals silicone hydride; Waterborne curing agent is the hydrophilic aliphatic polymeric isocyanate.
It is the waterborne organic silicon resin that the waterborne organic silicon modified polyester resin of SKW001 or waterborne organic silicon modification heatproof resin that model is GSN-W1995 or model are DB-003 that described waterborne organic silicon resin adopts model.
The model of described dispersion agent is sn-dispersant5040 or T-5040 or FU-540.
The model of described water-based flow agent is LE-085 or BD-3307 or JY-3033.
The model of described water-based defoamer is JY-810 or ZBH-305 or BD-304.
The model of described adhesion promoter is Tech-7136 or PS-064 or SKR-5040.
Described solvent is a kind of in water and the ethanol or both mixtures.
The model of described waterborne curing agent is Bayhydur VP LS 2150BA or TPA-100 or WT-2102.
The preparation method of graphene oxide radiating and cooling coating is characterized in that: at first carry out the preparation of A agent and B agent, then A, B agent are mixed by the weight ratio of 4:1, namely make described graphene oxide radiating and cooling coating;
Wherein the preparation technology of A agent is as follows: take by weighing waterborne organic silicon resin, solvent, graphene oxide by proportioning and put into ball grinder, stir half hour, add respectively dispersion agent, water-based flow agent, water-based defoamer and adhesion promoter in the whipping process, then stirred 4 hours with 1000 rev/mins speed, obtain the A agent;
The preparation technology of B agent is as follows: take by weighing waterborne curing agent and ethanol stirs by proportioning in encloses container, obtain the B agent.
The invention has the beneficial effects as follows: the present invention utilizes the graphene oxide of high heat conductance and radiant ratio as main heat-eliminating medium, it is evenly dispersed in resin and the solvent is prepared into coating, because graphene oxide is evenly dispersed in the resin, for heat transfer provides passage, be conducive to the release of heat, simultaneously because graphene oxide is cheap, thus the present invention with respect to prior art when guaranteeing radiating effect, greatly reduce production cost; In addition, owing to adopt water or ethanol or both mixtures as solvent, so that spraying product well is at room temperature namely curable.The surface that heat radiation coating of the present invention is directly coated heat abstractor can increase its area of dissipation, with improving radiating effect, has efficient, convenient, environmental protection characteristics.
Description of drawings
Fig. 1 is the stainless steel plate of embodiment 1 uncoated heat radiation coating and the temperature changing curve diagram that has been coated with the heat radiation coating stainless steel plate.
Embodiment
Embodiment 1: present embodiment graphene oxide radiating and cooling coating is the composition of A agent and B agent, and both weight ratios are 4:1, wherein,
The A agent is comprised of following component and corresponding content (weight, unit are kilogram):
Waterborne organic silicon resin 30
Graphene oxide 4
Dispersion agent 1.5
Water-based flow agent 1.5
Water-based defoamer 1
Adhesion promoter 2
The B agent is and the waterborne curing agent base fluid of A agent coupling, is comprised of following component and corresponding content (weight, unit are kilogram):
Waterborne curing agent 5
In this example, described waterborne organic silicon resin is the waterborne organic silicon modified polyester resin, and its model is SKW001; Dispersion agent is polycarboxylate sodium's type dispersion agent, and its model is sn-dispersant5040; The type of water-based flow agent is polyether-modified organopolysiloxane, and its model is LE-085; The water-based defoamer is aqueous emulsion of dimethyl polysiloxane fluid, and its model is JY-810; The type of adhesion promoter is epoxy radicals silicone hydride, and its model is Tech-7136; Solvent is water; Waterborne curing agent is the hydrophilic aliphatic polymeric isocyanate, and its model is Bayhydur VP LS 2150BA.
The present embodiment preparation method is as follows: at first carry out the preparation of A agent and B agent, then A, B agent are mixed by the weight ratio of 4:1, namely make described graphene oxide radiating and cooling coating;
Wherein the preparation technology of A agent is as follows: take by weighing waterborne organic silicon resin, solvent, graphene oxide by proportioning and put into ball grinder, stir half hour, add respectively dispersion agent, water-based flow agent, water-based defoamer and adhesion promoter in the whipping process, then stirred 4 hours with 1000 rev/mins speed, obtain the A agent; The whole preparation process that is the A agent takes 4.5 hours, at first waterborne organic silicon resin, solvent, graphene oxide are put into ball grinder, stir, add respectively dispersion agent, water-based flow agent, water-based defoamer and adhesion promoter in the whipping process, this process takes 0.5 hour altogether;
The preparation technology of B agent is as follows: take by weighing waterborne curing agent and ethanol stirs by proportioning in encloses container, obtain the B agent.
The paint spay-coating that present embodiment is made to stainless steel materials, after the self-vulcanizing, resistance to impact shock 〉=50Kgcm(GB1732/93), flawless, adhesion 1 grade (GB 9286/98).
Testing method one:
Prepare two stainless steel materials of two 7 cm * 7 cm * 0.15 cm specifications, wherein one is control group, its surperficial uncoated heat radiation coating; Another piece is experimental group, the preparation-obtained heat radiation coating of its surface coated present embodiment.Heat-conducting cream is smeared in the wick bottom of the LED lamp of two 5 the same W, be separately fixed at these two above the stainless steel materials.Connect direct supply, the power of two LED lamps is transferred to equally, utilize temperature measurer that the wick of two LED lamps is carried out temperature survey, and record the temperature contrast in the different stainless steel materials situations.
Through experiment test as can be known, after the LED lamp of 5 W is fixed on the stainless steel materials still with same power work, and the back side has the temperature of the LED lamp on the stainless steel materials of heat radiation coating of spray present embodiment lower than the temperature of the LED lamp on the stainless steel materials that does not spray heat sink material, and maximum temperature difference can reach 11.8 ℃ (as shown in Figure 1).Illustrate that thus graphene oxide radiating and cooling coating of the present invention has good radiating effect.
Testing method two: prepare two stainless steel materials of two 7 cm * 7 cm * 0.15 cm specifications, wherein one is control group, its surperficial uncoated heat radiation coating; Another piece is experimental group, the heat radiation coating that its surface coated present embodiment prepares.Two stainless steel materials are placed on temperature on the hot-plate (50,80,100,120,150,180,200,250 ℃) balance 30 minutes, temp.-sensing wire is fixed in the sheet material center, utilize the temperature measurer record temperature of this moment.
Through experiment test as can be known, there is temperature on the stainless steel materials of spray present embodiment heat radiation coating at the back side than the temperature of the stainless steel materials that does not spray heat sink material all low (seeing Table 1) under the differing temps, illustrates also that thus graphene oxide radiating and cooling coating of the present invention has good radiating effect.
Table 1
| Base material temperature (℃) | 50 | 80 | 100 | 120 | 150 | 180 | 200 | 250 |
| Temperature head (℃) | 12 | 18 | 25 | 32 | 38 | 44 | 50 | 55 |
Embodiment 2: present embodiment graphene oxide radiating and cooling coating is the composition of A agent and B agent, and both weight ratios are 4:1, wherein,
The A agent is comprised of following component and corresponding content (weight, unit are kilogram):
Waterborne organic silicon resin 50
Graphene oxide 5
Dispersion agent 1
Water-based flow agent 2
Water-based defoamer 0.5
Adhesion promoter 1.5
The B agent is and the waterborne curing agent base fluid of A agent coupling, is comprised of following component and corresponding content (weight, unit are kilogram):
Waterborne curing agent 7.5
Ethanol 17.5.
In this example, described waterborne organic silicon resin is waterborne organic silicon modification heatproof resin, and its model is GSN-W1995; Dispersion agent is polycarboxylate sodium's type dispersion agent, and its model is T-5040; The type of water-based flow agent is polyether-modified organopolysiloxane, and its model is BD-3307; The water-based defoamer is aqueous emulsion of dimethyl polysiloxane fluid, and its model is ZBH-305; The type of adhesion promoter is epoxy radicals silicone hydride, and its model is PS-064; Solvent is ethanol; Waterborne curing agent is the hydrophilic aliphatic polymeric isocyanate, and its model is WT-2102.
The present embodiment preparation method is identical with embodiment 1.
With the present embodiment paint spay-coating to stainless steel materials, after the self-vulcanizing, resistance to impact shock 〉=50 Kgcm, flawless, 0 grade of sticking power.
Testing method two among testing method such as the embodiment 1, result such as table 2 illustrate that graphene oxide radiating and cooling coating of the present invention has good radiating effect.
Table 2
| Base material temperature (℃) | 50 | 80 | 100 | 120 | 150 | 180 | 200 | 250 |
| Temperature head (℃) | 10 | 17 | 23 | 30 | 37 | 45 | 52 | 58 |
Embodiment 3: present embodiment graphene oxide radiating and cooling coating is the composition of A agent and B agent, and both weight ratios are 4:1, wherein,
The A agent is comprised of following component and corresponding content (weight, unit are kilogram):
Waterborne organic silicon resin 40
Graphene oxide 2
Dispersion agent 3
Water-based flow agent 1
Water-based defoamer 1.5
Adhesion promoter 1
Solvent 51.5;
The B agent is and the waterborne curing agent base fluid of A agent coupling, is comprised of following component and corresponding content (weight, unit are kilogram):
Waterborne curing agent 6.25
Ethanol 18.75.
In this example, the model of described waterborne organic silicon resin is DB-003; Dispersion agent is polycarboxylate sodium's type dispersion agent, and its model is FU-540; The type of water-based flow agent is polyether-modified organopolysiloxane, and its model is JY-3033; The water-based defoamer is aqueous emulsion of dimethyl polysiloxane fluid, and its model is BD-304; The type of adhesion promoter is epoxy radicals silicone hydride, and its model is SKR-5040; Solvent is the mixture of second alcohol and water, and wherein water is 20 kilograms, and ethanol is 31.5 kilograms; Waterborne curing agent is the hydrophilic aliphatic polymeric isocyanate, and its model is TPA-100.
The present embodiment preparation method is identical with embodiment 1.
With the present embodiment paint spay-coating to stainless steel materials, after the self-vulcanizing, resistance to impact shock 〉=50 Kgcm, flawless, 0 grade of sticking power.
Testing method two among testing method such as the embodiment 1, result such as table 3 illustrate that also graphene oxide radiating and cooling coating of the present invention has good radiating effect.
Table 3
| Base material temperature (℃) | 50 | 80 | 100 | 120 | 150 | 180 | 200 | 250 |
| Temperature head (℃) | 11 | 16 | 25 | 31 | 39 | 46 | 54 | 60 |
Embodiment 4: present embodiment graphene oxide radiating and cooling coating is the composition of A agent and B agent, and both weight ratios are 4:1, wherein,
The A agent is comprised of following component and corresponding content (weight, unit are kilogram):
Waterborne organic silicon resin 60
Graphene oxide 4
Dispersion agent 2
Water-based flow agent 1.5
Water-based defoamer 1
Adhesion promoter 1.5
The B agent is and the waterborne curing agent base fluid of A agent coupling, is comprised of following component and corresponding content (weight, unit are kilogram):
Waterborne curing agent 6
Ethanol 19.
In this example, the model of described waterborne organic silicon resin is DB-003; Dispersion agent is polycarboxylate sodium's type dispersion agent, and its model is sn-dispersant5040; The type of water-based flow agent is polyether-modified organopolysiloxane, and its model is BD-3077; The water-based defoamer is aqueous emulsion of dimethyl polysiloxane fluid, and its model is BD-304; The type of adhesion promoter is epoxy radicals silicone hydride, and its model is Tech-7136; Solvent is the mixture of second alcohol and water, and wherein water is 15 kilograms, and ethanol is 15 kilograms; Waterborne curing agent is the hydrophilic aliphatic polymeric isocyanate, and its model is Bayhydur VP LS 2150BA.
The present embodiment preparation method is identical with embodiment 1.
With the present embodiment paint spay-coating to stainless steel materials, after the self-vulcanizing, resistance to impact shock 〉=50 Kgcm, flawless, 0 grade of sticking power.
Testing method two among testing method such as the embodiment 1, result such as table 4 illustrate that graphene oxide radiating and cooling coating of the present invention has good radiating effect.
Table 4
| Base material temperature (℃) | 50 | 80 | 100 | 120 | 150 | 180 | 200 | 250 |
| Temperature head (℃) | 14 | 20 | 26 | 35 | 39 | 48 | 56 | 62 |
To be concentration be 100% straight alcohol to ethanol in the various embodiments described above.
The present invention has fully utilized high heat conductance and the radiant ratio of graphene oxide, and the advantage such as good gluing performance, high strength and the excellent high temperature resistance of waterborne organic silicon resin, electrical insulation capability, graphene oxide is dispersed in the waterborne organic silicon resin under various auxiliary agent synergies, prepares heat radiation coating of the present invention.Comprehensive described embodiment, the heat radiation coating of the present invention surface of directly coating heat abstractor can increase its area of dissipation as can be known, with improving radiating effect, has the characteristics such as efficient, convenience, environmental protection.
Claims (10)
1. a graphene oxide radiating and cooling coating is characterized in that, this coating is the composition of A agent and B agent, and both weight ratios are 4:1, wherein,
The A agent is comprised of the raw material of following weight percent:
Waterborne organic silicon resin 30 ~ 60
Graphene oxide 2 ~ 5
Dispersion agent 1 ~ 3
Water-based flow agent 1 ~ 2
Water-based defoamer 0.5 ~ 1.5
Adhesion promoter 1 ~ 2
Solvent 30 ~ 60
The B agent is comprised of the raw material of following weight percent:
Waterborne curing agent 20 ~ 30
Ethanol 70 ~ 80.
2. graphene oxide radiating and cooling coating according to claim 1, it is characterized in that: the flash-point of described waterborne organic silicon resin is greater than 100 ℃; Dispersion agent is polycarboxylate sodium's type dispersion agent; The type of water-based flow agent is polyether-modified organopolysiloxane; The water-based defoamer is aqueous emulsion of dimethyl polysiloxane fluid; The type of adhesion promoter is epoxy radicals silicone hydride; Waterborne curing agent is the hydrophilic aliphatic polymeric isocyanate.
3. graphene oxide radiating and cooling coating according to claim 1 and 2 is characterized in that: it is the waterborne organic silicon resin that the waterborne organic silicon modified polyester resin of SKW001 or waterborne organic silicon modification heatproof resin that model is GSN-W1995 or model are DB-003 that described waterborne organic silicon resin adopts model.
4. graphene oxide radiating and cooling coating according to claim 1 and 2, it is characterized in that: the model of described dispersion agent is sn-dispersant5040 or T-5040 or FU-540.
5. graphene oxide radiating and cooling coating according to claim 1 and 2, it is characterized in that: the model of described water-based flow agent is LE-085 or BD-3307 or JY-3033.
6. graphene oxide radiating and cooling coating according to claim 1 and 2, it is characterized in that: the model of described water-based defoamer is JY-810 or ZBH-305 or BD-304.
7. graphene oxide radiating and cooling coating according to claim 1 and 2, it is characterized in that: the model of described adhesion promoter is Tech-7136 or PS-064 or SKR-5040.
8. graphene oxide radiating and cooling coating according to claim 1 and 2 is characterized in that: described solvent is a kind of in water and the ethanol or both mixtures.
9. graphene oxide radiating and cooling coating according to claim 1 and 2, it is characterized in that: the model of described waterborne curing agent is Bayhydur VP LS 2150BA or TPA-100 or WT-2102.
10. the preparation method of the described graphene oxide radiating and cooling of claim 1 coating is characterized in that: at first carry out the preparation of A agent and B agent, then A, B agent are mixed by the weight ratio of 4:1, namely make described graphene oxide radiating and cooling coating;
Wherein the preparation technology of A agent is as follows: take by weighing waterborne organic silicon resin, solvent, graphene oxide by proportioning and put into ball grinder, stir half hour, add respectively dispersion agent, water-based flow agent, water-based defoamer and adhesion promoter in the whipping process, then stirred 4 hours with 1000 rev/mins speed, obtain the A agent;
The preparation technology of B agent is as follows: take by weighing waterborne curing agent and ethanol stirs by proportioning in encloses container, obtain the B agent.
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