CN114574168A - Carbide graphene nanofluid heat dissipation material and preparation method thereof - Google Patents
Carbide graphene nanofluid heat dissipation material and preparation method thereof Download PDFInfo
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 127
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 127
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 46
- 239000000463 material Substances 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 107
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 85
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 63
- 238000005260 corrosion Methods 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 230000007797 corrosion Effects 0.000 claims abstract description 20
- 239000011858 nanopowder Substances 0.000 claims abstract description 18
- 239000003112 inhibitor Substances 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims abstract description 8
- 239000004094 surface-active agent Substances 0.000 claims abstract description 7
- 239000010949 copper Substances 0.000 claims description 54
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 52
- 229910052802 copper Inorganic materials 0.000 claims description 52
- 239000011259 mixed solution Substances 0.000 claims description 39
- 239000012530 fluid Substances 0.000 claims description 31
- 238000000498 ball milling Methods 0.000 claims description 22
- 239000000243 solution Substances 0.000 claims description 19
- 239000000919 ceramic Substances 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 11
- 238000000227 grinding Methods 0.000 claims description 10
- 235000015393 sodium molybdate Nutrition 0.000 claims description 8
- 239000011684 sodium molybdate Substances 0.000 claims description 8
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 7
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 6
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 6
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 6
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 6
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims description 6
- 239000005642 Oleic acid Substances 0.000 claims description 6
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 6
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 6
- 238000001704 evaporation Methods 0.000 claims description 6
- 230000008020 evaporation Effects 0.000 claims description 6
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 6
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 239000002270 dispersing agent Substances 0.000 claims description 5
- 230000010355 oscillation Effects 0.000 claims description 5
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- 238000003760 magnetic stirring Methods 0.000 claims description 4
- 239000002244 precipitate Substances 0.000 claims description 4
- 230000002441 reversible effect Effects 0.000 claims description 4
- 238000005119 centrifugation Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 abstract description 6
- 229910052751 metal Inorganic materials 0.000 abstract description 6
- 230000002401 inhibitory effect Effects 0.000 description 4
- 239000002105 nanoparticle Substances 0.000 description 4
- 230000002633 protecting effect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- BYFGZMCJNACEKR-UHFFFAOYSA-N aluminium(i) oxide Chemical compound [Al]O[Al] BYFGZMCJNACEKR-UHFFFAOYSA-N 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 230000005653 Brownian motion process Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005537 brownian motion Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
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- 238000010438 heat treatment Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002048 multi walled nanotube Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
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- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/10—Liquid materials
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Abstract
The invention discloses a carbide graphene nanofluid heat dissipation material which comprises the following components in parts by weight: 30-50 parts of ethylene glycol; 50-70 parts of plasma water; 0.04-1 part of nano silicon carbide powder; 0.04-1 part of graphene nano powder; 0.8-2 parts of corrosion inhibitor; 0.8-2 parts of surfactant. The invention discloses a preparation method of a carbide graphene nanofluid heat dissipation material. The silicon carbide graphene nanofluid of the heat dissipation material is good in stability and high in particle dispersibility, exerts heat dissipation performance and corrosion resistance in a metal piece, can improve heat dissipation performance and heat conductivity, and is simple in preparation method.
Description
Technical Field
The invention relates to the field of composite fluid and preparation thereof, in particular to a carbide graphene nano fluid heat dissipation material and a preparation method thereof.
Background
At present, electronic devices tend to be developed in the direction of miniaturization and integration, heat accumulation loss per unit area is serious, and the requirements for solving the heat dissipation problem, transferring heat with high efficiency and improving various heat dissipation indexes become a current hotspot. The traditional liquid is difficult to meet the heat transfer requirements of some current equipment and materials, and the nano fluid is a novel uniform, stable and high-heat-conductivity heat exchange medium.
The research finds that the mixed nano-particles have high stability and other properties. Such as the mixture of copper sheet particles and oxide nanoparticles, Al2O 3-Cu/water, TiO 2-Ag/water, TiO 2-Cu/water with water as base fluid, and ZnO-TiO2/EG, MgO-FMWCNTs/EG mixed nanofluids with Ethylene Glycol (EG) as base fluid all enhance the thermal conductivity of the fluid. Researches show that the graphene nanofluid is utilized to better solve the problem of material surface heat dissipation, other substances are added on the basis of the original nanofluid solution to further improve the heat dissipation performance of the nanofluid solution, and the graphene-multiwalled carbon nanotube (MWNT) mixed nanofluid which is researched at present obviously improves the heat conductivity.
In the prior art, composite nanofluid of graphene and carbide is not prepared, and a carbide graphene nanofluid heat dissipation material and a preparation method thereof are provided.
Disclosure of Invention
The invention aims to provide a carbide graphene nanofluid heat dissipation material and a preparation method thereof, the preparation method is simple, and the prepared carbide graphene nanofluid has a certain anti-corrosion effect and good dispersibility and heat conductivity.
The purpose of the invention can be realized by the following technical scheme:
a carbide graphene nanofluid heat dissipation material comprises the following components in parts by weight: 30-50 parts of ethylene glycol; 50-70 parts of plasma water; 0.04-1 part of nano silicon carbide powder; 0.04-1 part of graphene nano powder; 0.8-2 parts of corrosion inhibitor; 0.8-2 parts of surfactant.
Further, the carbide graphene nanofluid heat dissipation material comprises the following components in parts by weight: 40 parts of ethylene glycol; 60 parts of plasma water; 0.05 part of nano silicon carbide powder; 0.05 part of graphene nano powder; 1 part of sodium molybdate; and 1 part of oleic acid.
Further, the carbide graphene nanofluid heat dissipation material comprises the following components in parts by weight: 30 parts of ethylene glycol; 50 parts of plasma water; 0.04 part of nano silicon carbide powder; 0.04 part of graphene nano powder; 0.8 part of sodium molybdate; 0.8 part of sodium dodecyl benzene sulfonate.
Further, the carbide graphene nanofluid heat dissipation material comprises the following components in parts by weight: 50 parts of ethylene glycol; 70 parts of plasma water; 1 part of nano silicon carbide powder; 1 part of graphene nano powder; 2 parts of nitrite; and 2 parts of hexadecyl trimethyl ammonium bromide.
Further, the corrosion inhibitor is nitrite, silicate or sodium molybdate.
Further, the surfactant is sodium dodecyl benzene sulfonate, oleic acid or hexadecyl trimethyl ammonium bromide.
Further, the preparation method comprises the following steps:
the method comprises the following steps: 30-50 parts of the ethylene glycol and 50-70 parts of the plasma water are poured into a cleaned beaker, added while stirring, and fully stirred to obtain a base solution.
Step two: sequentially adding 0.04-1 part of the nano silicon carbide powder, 0.04-1 part of the graphene nano powder, 0.8-2 parts of the corrosion inhibitor and 0.8-2 parts of the surfactant into the base solution in sequence, wherein the particle size of the nano silicon carbide powder is 30-70nm to obtain a silicon carbide and graphene mixed solution, and carrying out constant-temperature magnetic stirring on the silicon carbide and graphene mixed solution at the rotation speed of 30-50r/min and the temperature of 20-40 ℃ for 15-60 min.
Step three: weighing 8-20 parts of silicon carbide graphene mixed solution and 80-2000 parts of ceramic balls, adding the silicon carbide graphene mixed solution and the ceramic balls into a grinding tank, enabling the mass ratio of the silicon carbide graphene mixed solution to the ceramic balls to be 1:10-100, placing the grinding tank into the planetary balls, enabling the ball-milling mode to be positive rotating for 10-75min, then reverse rotating for 10-75min, standing for 10-60min, carrying out 10-60-cycle ball-milling for 10-60 weeks, enabling the ball-milling time to be 60-90h, and enabling solutes in the silicon carbide graphene mixed solution to be uniformly mixed and dispersed.
Step four: pouring the silicon carbide graphene mixed solution obtained after ball milling into a beaker, placing the beaker into a high-power ultrasonic dispersing agent, adjusting the power of the instrument to be 150-250W, controlling the oscillation mode of the beaker for 3-8s, standing for 1-5s, keeping the primary dispersion time for 5-15min, opening a chamber door for 10-15min after each dispersion, cooling, and carrying out ultrasonic dispersion for 2-5 times in total.
Step five: taking out the dispersed silicon carbide graphene mixed solution, pouring the solution into a centrifugal tube, symmetrically placing the centrifugal tube into a high-speed centrifuge, centrifuging for 10-20min, slowly adjusting the rotating speed to 2000-4000r/min, taking out the centrifugal tube after centrifugation is finished, taking out precipitates in the tube as impurities, taking supernate in the tube as nanofluid, quickly pouring all liquid in the centrifugal tube into a beaker to obtain silicon carbide graphene nanofluid, wherein the silicon carbide graphene nanofluid is also called as composite fluid.
Step six: and respectively putting a copper sheet into the base liquid and the silicon carbide graphene nanofluid, judging the corrosion performance according to the surface morphology of the copper sheet, judging the heat dissipation performance according to the evaporation time of the copper sheet, and judging the heat conduction performance according to the thermal resistivity condition of the copper sheet.
The invention has the beneficial effects that:
1. the heat dissipation material has good stability and good particle dispersibility, and can not generate sedimentation for a long time;
2. the heat dissipation material has the advantages that the heat dissipation performance is exerted in a metal copper sheet, the corrosion resistance is realized, the corrosion of the metal copper sheet can be slowed down by adding the corrosion inhibitor, the silicon carbide graphene nano fluid has the inhibiting and protecting effects on the metal copper sheet, the properties of the solution and the state of the surface of the metal copper sheet can be changed by the silicon carbide graphene nano fluid, so that a protective film is formed on the surface of the metal copper sheet, the diffusion of oxygen molecules is hindered, and the solubility of salt is reduced;
3. the heat dissipation material silicon carbide graphene nanofluid can improve heat dissipation performance and heat conduction, and the difference between the silicon carbide graphene nanofluid and the traditional medium heat conduction is that nano particles in the silicon carbide graphene nanofluid have large specific surface area and high specific heat, so that a formed nano powder suspension has good heat exchange capacity, in addition, Brownian motion of the nano particles can cause convection of surrounding base liquid in the heating process, and the heat dissipation performance of the base liquid is improved.
4. The preparation method of the heat dissipation material is simple.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 shows the corrosion of copper sheets in SiC nanofluid and base fluid according to the present invention;
FIG. 2 is a graph of surface evaporation of copper sheets in SiC nanofluid and base fluid versus time according to the present invention;
FIG. 3 is a comparison of thermal resistivity of copper sheets of the present invention in SiC graphene nanofluid and a base fluid;
FIG. 4 is a phase structure microscopic condition of the copper sheet of the present invention in a base liquid;
fig. 5 is a phase structure microscope of the copper sheet of the present invention in silicon carbide graphene nanofluid.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
A carbide graphene nanofluid heat dissipation material comprises the following components in parts by weight: 30 parts of ethylene glycol; 50 parts of plasma water; 0.04 part of nano silicon carbide powder; 0.04 part of graphene nano powder; 0.8 part of sodium molybdate; 0.8 part of sodium dodecyl benzene sulfonate.
A preparation method of a carbide graphene nano-fluid heat dissipation material comprises the following steps:
the method comprises the following steps: the 30 parts of ethylene glycol and 50 parts of plasma water were poured in parts into a cleaned beaker, and added while stirring, and the mixture was sufficiently stirred to obtain a base solution.
Step two: sequentially adding 0.04 part of the nano silicon carbide powder, 0.04 part of the graphene nano powder, 0.8 part of sodium molybdate and 0.8 part of sodium dodecyl benzene sulfonate into the base solution in sequence, wherein the particle size of the nano silicon carbide powder is 30nm to obtain a silicon carbide and graphene mixed solution, and stirring the silicon carbide and graphene mixed solution at a constant temperature and a magnetic force at a rotating speed of 30r/min and a temperature of 20 ℃ for 15 min.
Step three: weighing 8 parts of silicon carbide graphene mixed solution and 80 parts of ceramic balls, adding the silicon carbide graphene mixed solution and the ceramic balls into a grinding tank, enabling the mass ratio of the silicon carbide graphene mixed solution to the ceramic balls to be 1:10, putting the grinding tank into a planetary ball, and carrying out 10-cycle ball milling for 10 times in a ball milling mode, wherein the ball milling mode is that positive rotation is firstly carried out for 10min, then reverse rotation is carried out for 10min, standby time is 10min, and the ball milling time is 60h, so that solutes in the silicon carbide graphene mixed solution can be uniformly mixed and dispersed.
Step four: pouring the silicon carbide graphene mixed solution obtained after ball milling into a beaker, placing the beaker into a high-power ultrasonic dispersing agent, adjusting the power of an instrument to be 150W, controlling the oscillation mode of the beaker for 3s, standing for 1s, dispersing for 5min for one time, opening a chamber door for 10min after each dispersion is completed, cooling, and performing ultrasonic dispersion for 2 times in total.
Step five: taking out the dispersed silicon carbide graphene mixed solution, pouring the solution into a centrifuge tube, symmetrically placing the centrifuge tube into a high-speed centrifuge, centrifuging for 10min, slowly adjusting the rotating speed to 2000r/min, taking out the centrifuge tube after centrifuging, taking out the centrifuge tube, wherein precipitates in the tube are impurities, supernatant in the tube is nanofluid, quickly pouring all liquid in the centrifuge tube into a beaker to obtain silicon carbide graphene nanofluid, and the silicon carbide graphene nanofluid is also called composite fluid.
Step six: the copper sheet is respectively put into the base fluid and the silicon carbide graphene nanofluid, detection and comparison are carried out through the copper sheet, as shown in figure 1, the copper sheet of the silicon carbide graphene nanofluid has a plurality of bulges compared with the copper sheet microstructure in the base fluid, the bulges are formed by changing the surface morphology of the copper sheet through the nanofluid and promoting mass transfer, the corrosion condition of the silicon carbide graphene nanofluid on the copper sheet is known, the silicon carbide graphene nanofluid has good inhibiting and protecting effects and corrosion resistance on the copper sheet, as shown in figure 2, the evaporation time of the copper sheet in the silicon carbide graphene nanofluid is shorter than that in the base fluid, the heat dissipation performance of the copper sheet surface of the silicon carbide graphene nanofluid is good, as shown in figure 3, the thermal resistivity of the copper sheet in the base fluid is higher than that of the copper sheet in the silicon carbide graphene nanofluid, the silicon carbide graphene nanofluid has high thermal conductivity.
Example 2
A carbide graphene nanofluid heat dissipation material comprises the following components in parts by weight: 40 parts of ethylene glycol; 60 parts of plasma water; 0.05 part of nano silicon carbide powder; 0.05 part of graphene nano powder; 1 part of silicate; and 1 part of oleic acid.
A preparation method of a carbide graphene nano-fluid heat dissipation material comprises the following steps:
the method comprises the following steps: the above 40 parts of ethylene glycol and 60 parts of plasma water were poured in portions into a washed beaker, and added while stirring, and sufficiently stirred to obtain a base solution.
Step two: sequentially adding 0.05 part of the nano silicon carbide powder, 0.05 part of the graphene nano powder, 1 part of silicate and 1 part of oleic acid into the base solution in sequence to obtain a silicon carbide and graphene mixed solution, wherein the particle size of the nano silicon carbide powder is 50nm, and the silicon carbide and graphene mixed solution is subjected to constant-temperature magnetic stirring at the rotating speed of 40r/min and the temperature of 30 ℃ for 30 min.
Step three: weighing 10 parts of silicon carbide graphene mixed solution and 150 parts of ceramic balls, adding the silicon carbide graphene mixed solution and the ceramic balls into a grinding tank, enabling the mass ratio of the silicon carbide graphene mixed solution to the ceramic balls to be 1:15, putting the grinding tank into a planetary ball, and carrying out 30-cycle circular ball milling in a ball milling mode of firstly positively rotating for 45min, then reversely rotating for 45min, standing for 30min, wherein the ball milling time is 75h, so that solutes in the silicon carbide graphene mixed solution can be uniformly mixed and dispersed.
Step four: pouring the silicon carbide graphene mixed solution obtained after ball milling into a beaker, placing the beaker into a high-power ultrasonic dispersing agent, adjusting the power of an instrument to be 200W, controlling the oscillation mode of the beaker for 5s, standing for 2s, dispersing for 10min for one time, opening a cavity door for 20min after each dispersion is finished, cooling, and performing ultrasonic dispersion for 3 times in total.
Step five: taking out the dispersed silicon carbide graphene mixed solution, pouring the solution into a centrifuge tube, symmetrically placing the centrifuge tube into a high-speed centrifuge, centrifuging for 15min, slowly adjusting the rotating speed to 3000r/min, taking out the centrifuge tube after centrifuging, taking out the centrifuge tube, wherein precipitates in the tube are impurities, supernatant in the tube is nanofluid, quickly pouring all liquid in the centrifuge tube into a beaker to obtain silicon carbide graphene nanofluid, and the silicon carbide graphene nanofluid is also called composite fluid.
Step six: the copper sheet is respectively put into the base fluid and the silicon carbide graphene nanofluid, detection and comparison are carried out through the copper sheet, as shown in figure 1, the copper sheet of the silicon carbide graphene nanofluid has a plurality of bulges compared with the copper sheet microstructure in the base fluid, the bulges are formed by changing the surface morphology of the copper sheet through the nanofluid and promoting mass transfer, the corrosion condition of the silicon carbide graphene nanofluid on the copper sheet is known, the silicon carbide graphene nanofluid has good inhibiting and protecting effects and corrosion resistance on the copper sheet, as shown in figure 2, the evaporation time of the copper sheet in the silicon carbide graphene nanofluid is shorter than that in the base fluid, the heat dissipation performance of the copper sheet surface of the silicon carbide graphene nanofluid is good, as shown in figure 3, the thermal resistivity of the copper sheet in the base fluid is higher than that of the copper sheet in the silicon carbide graphene nanofluid, the silicon carbide graphene nanofluid has high thermal conductivity.
EXAMPLE III
A carbide graphene nanofluid heat dissipation material comprises the following components in parts by weight: 50 parts of ethylene glycol; 70 parts of plasma water; 1 part of nano silicon carbide powder; 1 part of graphene nano powder; 2 parts of nitrite; and 2 parts of hexadecyl trimethyl ammonium bromide.
A preparation method of a carbide graphene nanofluid heat dissipation material comprises the following steps:
the method comprises the following steps: the above 50 parts of ethylene glycol and 70 parts of plasma water were poured in parts into a washed beaker, and added while stirring, followed by sufficient stirring to obtain a base solution.
Step two: sequentially adding 1 part of the nano silicon carbide powder, 1 part of the graphene nano powder, 2 parts of nitrite and 2 parts of hexadecyl trimethyl ammonium bromide into the base solution according to the sequence to obtain a silicon carbide and graphene mixed solution, wherein the particle size of the nano silicon carbide powder is 70nm, and the silicon carbide and graphene mixed solution is subjected to constant-temperature magnetic stirring at the rotating speed of 50r/min and the temperature of 40 ℃ for 60 min.
Step three: weighing 20 parts of silicon carbide graphene mixed solution and 400 parts of ceramic balls, adding the silicon carbide graphene mixed solution and the ceramic balls into a grinding tank in a mass ratio of 1:20, putting the grinding tank into a planetary ball, and performing 60-cycle ball milling for 60 times in a ball milling mode, wherein the ball milling mode comprises forward rotation for 75min, reverse rotation for 75min and standby for 60min, and the ball milling time is 90 hours, so that solutes in the silicon carbide graphene mixed solution can be uniformly mixed and dispersed.
Step four: pouring the silicon carbide graphene mixed solution obtained after ball milling into a beaker, placing the beaker into a high-power ultrasonic dispersing agent, adjusting the power of an instrument to be 250W, controlling the oscillation mode of the beaker for 8s, standing for 5s, dispersing for 15min once, opening a chamber door for 30min after finishing dispersing each time, cooling, and performing ultrasonic dispersion for 5 times in total.
Step five: taking out the dispersed silicon carbide graphene mixed solution, pouring the solution into a centrifugal tube, symmetrically placing the centrifugal tube into a high-speed centrifuge, centrifuging for 20min, slowly adjusting the rotating speed to 4000r/min, taking out the centrifugal tube after centrifugation is finished, taking out the centrifugal tube, quickly pouring liquid in all the centrifugal tubes into a beaker, and obtaining silicon carbide graphene nanofluid, wherein the silicon carbide graphene nanofluid is called composite fluid.
Step six: the copper sheets are respectively placed in the base fluid and the silicon carbide graphene nanofluid, detection and comparison are carried out through the copper sheets, as shown in a figure 1, a plurality of protrusions are arranged on the microstructure of the copper sheets of the silicon carbide graphene nanofluid compared with the microstructure of the copper sheets in the base fluid, the protrusions enable the nanofluid to change the surface morphology of the copper sheets and promote mass transfer, and the corrosion condition of the silicon carbide graphene nanofluid to the copper sheets is known, the silicon carbide graphene nanofluid has good inhibiting and protecting effects and corrosion resistance on the copper sheets, as shown in a figure 2, the evaporation time of the copper sheets in the silicon carbide graphene nanofluid is shorter than that in the base fluid, the heat dissipation performance of the copper sheets on the surface of the silicon carbide graphene nanofluid is good, as shown in a figure 3, the thermal resistivity of the copper sheets in the base fluid is higher than that of the copper sheets in the silicon carbide graphene nanofluid and the base fluid, the silicon carbide graphene nanofluid has high thermal conductivity.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (7)
1. The carbide graphene nanofluid heat dissipation material is characterized by comprising the following components in parts by weight: 30-50 parts of ethylene glycol; 50-70 parts of plasma water; 0.04-1 part of nano silicon carbide powder; 0.04-1 part of graphene nano powder; 0.8-2 parts of corrosion inhibitor; 0.8-2 parts of surfactant.
2. The carbide graphene nanofluid heat dissipation material according to claim 1, wherein the heat dissipation material comprises the following components in parts by weight: 40 parts of ethylene glycol; 60 parts of plasma water; 0.05 part of nano silicon carbide powder; 0.05 part of graphene nano powder; 1 part of sodium molybdate; and 1 part of oleic acid.
3. The carbide graphene nanofluid heat dissipation material according to claim 1, wherein the heat dissipation material comprises the following components in parts by weight: 30 parts of ethylene glycol; 50 parts of plasma water; 0.04 part of nano silicon carbide powder; 0.04 part of graphene nano powder; 0.8 part of sodium molybdate; 0.8 part of sodium dodecyl benzene sulfonate.
4. The carbide graphene nanofluid heat dissipation material according to claim 1, wherein the heat dissipation material comprises the following components in parts by weight: 50 parts of ethylene glycol; 70 parts of plasma water; 1 part of nano silicon carbide powder; 1 part of graphene nano powder; 2 parts of nitrite; and 2 parts of hexadecyl trimethyl ammonium bromide.
5. The carbide graphene nanofluid heat dissipation material according to claim 1, wherein the corrosion inhibitor is nitrite, silicate or sodium molybdate.
6. The carbide graphene nanofluid heat dissipation material of claim 1, wherein the surfactant is sodium dodecylbenzene sulfonate, oleic acid, or cetyltrimethylammonium bromide.
7. The method for preparing the carbide graphene nanofluid heat dissipation material according to claim 1, wherein the preparation method comprises the following steps:
the method comprises the following steps: pouring 30-50 parts of the ethylene glycol and 50-70 parts of the plasma water into a cleaned beaker, adding the mixture while stirring, and fully stirring to obtain a base solution;
step two: sequentially adding 0.04-1 part of the nano silicon carbide powder, 0.04-1 part of the graphene nano powder, 0.8-2 parts of the corrosion inhibitor and 0.8-2 parts of the surfactant into the base solution in sequence, wherein the particle size of the nano silicon carbide powder is 30-70nm to obtain a silicon carbide and graphene mixed solution, and carrying out constant-temperature magnetic stirring on the silicon carbide and graphene mixed solution at the rotation speed of 30-50r/min and the temperature of 20-40 ℃ for 15-60 min;
step three: weighing 8-20 parts of silicon carbide graphene mixed solution and 80-2000 parts of ceramic balls, adding the silicon carbide graphene mixed solution and the ceramic balls into a grinding tank, enabling the mass ratio of the silicon carbide graphene mixed solution to the ceramic balls to be 1:10-100, placing the grinding tank into the planetary balls, enabling the ball-milling mode to be that forward rotation is firstly carried out for 10-75min, then reverse rotation is carried out for 10-75min, standing for 10-60min, carrying out 10-60-cycle ball-milling for 10-60 times, and enabling solutes in the silicon carbide graphene mixed solution to be uniformly mixed and dispersed, wherein the ball-milling time is 60-90 h;
step four: pouring the silicon carbide graphene mixed solution obtained after ball milling into a beaker, placing the beaker into a high-power ultrasonic dispersing agent, adjusting the power of the instrument to be 150-250W, controlling the oscillation mode of the beaker for 3-8s, standing for 1-5s, keeping the primary dispersion time to be 5-15min, opening a chamber door for 10-15min after each dispersion is completed, cooling, and carrying out ultrasonic dispersion for 2-5 times in total;
step five: taking out the dispersed silicon carbide graphene mixed solution, pouring the solution into a centrifugal tube, symmetrically putting the centrifugal tube into a high-speed centrifuge, centrifuging for 10-20min, slowly adjusting the rotating speed to 2000-4000r/min, taking out the centrifugal tube after centrifugation is finished, taking out precipitates in the tube as impurities, taking supernate in the tube as nanofluid, quickly pouring all liquid in the centrifugal tube into a beaker to obtain silicon carbide graphene nanofluid, wherein the silicon carbide graphene nanofluid is also called composite fluid;
step six: and respectively putting a copper sheet into the base liquid and the silicon carbide graphene nanofluid, judging the corrosion performance according to the surface morphology of the copper sheet, judging the heat dissipation performance according to the evaporation time of the copper sheet, and judging the heat conduction performance according to the thermal resistivity condition of the copper sheet.
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