CN104059618A - Anhydrous graphene oxide cooling liquid for engine and preparation method thereof - Google Patents
Anhydrous graphene oxide cooling liquid for engine 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 39
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- 239000000110 cooling liquid Substances 0.000 title abstract 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 51
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000001816 cooling Methods 0.000 claims abstract description 36
- 239000003112 inhibitor Substances 0.000 claims abstract description 27
- 230000007797 corrosion Effects 0.000 claims abstract description 22
- 238000005260 corrosion Methods 0.000 claims abstract description 22
- 238000003756 stirring Methods 0.000 claims abstract description 22
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 18
- 239000002131 composite material Substances 0.000 claims abstract description 15
- CMGDVUCDZOBDNL-UHFFFAOYSA-N 4-methyl-2h-benzotriazole Chemical compound CC1=CC=CC2=NNN=C12 CMGDVUCDZOBDNL-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000011609 ammonium molybdate Substances 0.000 claims abstract description 13
- 229940010552 ammonium molybdate Drugs 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 33
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 33
- 239000003795 chemical substances by application Substances 0.000 claims description 29
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 24
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 claims description 22
- 229920001296 polysiloxane Polymers 0.000 claims description 17
- 230000003472 neutralizing effect Effects 0.000 claims description 13
- -1 phenylpropyl alcohol triazole Chemical class 0.000 claims description 13
- DYUQAZSOFZSPHD-UHFFFAOYSA-N Phenylpropyl alcohol Natural products CCC(O)C1=CC=CC=C1 DYUQAZSOFZSPHD-UHFFFAOYSA-N 0.000 claims description 12
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 12
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 claims description 12
- 235000018660 ammonium molybdate Nutrition 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 238000010992 reflux Methods 0.000 claims description 5
- 238000004090 dissolution Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 238000009835 boiling Methods 0.000 abstract description 7
- 238000007710 freezing Methods 0.000 abstract description 7
- 230000008014 freezing Effects 0.000 abstract description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052710 silicon Inorganic materials 0.000 abstract description 3
- 239000010703 silicon Substances 0.000 abstract description 3
- 238000001556 precipitation Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 2
- 150000007524 organic acids Chemical class 0.000 abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 abstract 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 abstract 1
- 239000012964 benzotriazole Substances 0.000 abstract 1
- 239000007853 buffer solution Substances 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 230000007935 neutral effect Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 239000012809 cooling fluid Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000003760 magnetic stirring Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- NWGKJDSIEKMTRX-MDZDMXLPSA-N Sorbitan oleate Chemical compound CCCCCCCC\C=C\CCCCCCCC(=O)OCC(O)C1OCC(O)C1O NWGKJDSIEKMTRX-MDZDMXLPSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach 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
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 1
- 229920000053 polysorbate 80 Polymers 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention relates to anhydrous graphene oxide cooling liquid for an engine. The preparation method of the anhydrous graphene oxide cooling liquid comprises the following steps: mixing the following materials in percentage by weight: 30%-65% of ethylene glycol, 30%-65% of propylene glycol, 0.2%-3% of graphene oxide, 0.2%-2% of organic silicon defoaming agents and 0.7%-8% of composite corrosion inhibitor, and uniformly stirring till all the materials are dissolved. The anhydrous graphene oxide cooling liquid disclosed by the invention achieves high heat conductivity, has a freezing point being lower than -50 DEG C and a boiling point being as high as 188.5 DEG C and also has good corrosion resistance. According to the anhydrous graphene oxide cooling liquid, the heat conduction coefficient of a cooling system is enhanced by adopting graphene oxide with high heat conductivity; the cooling system can be better prevented from generating spot corrosion and the like through use of the organic silicon defoaming agents; copper structural components inside the engine can be well protected by tolyl triazole and benzotriazole; the pH of the cooling liquid can be effectively regulated and controlled between 7.5 and 10.0 through a neutral buffer system formed by an organic acid and the salts of the organic acid; and the cooling system can be efficiently prevented from generating precipitation, corrosion and water pump leakage by phosphoric acid-ammonium molybdate.
Description
Technical field
The present invention relates to graphene oxide water-free cooling and preparation method thereof for a kind of engine.
Background technology
Engine is the most crucial parts of automobile, and the power of automobile and the drive of car air-conditioner are all born by engine, but the efficiency of the too high engine of temperature can reduce even, damages, and the too low engine of temperature will increase oil consumption again.Therefore, cooling system is the effective guarantee of guaranteeing that engine runs well under normal working temperature.
Along with the continuous expansion of market engine, the cooling fluid of using that matches with it has also obtained significant progress.Current cooling fluid is on the market all containing water coolant (water substantially, ethylene glycol), its boiling point is low, freezing point is high, easily cavitation erosion, poor heat conductivity, be not content with the market requirement, the a large amount of water vapour that for example produce containing water coolant form steam thermofin in the metallic surface of cylinder periphery, cause timely the work heating of engine being conducted in time, finally make engine interior overheated and cause its degradation, and permanent use containing water coolant also can make cooling system occur corrosion, incrustation scale, the series of problems such as boil, causing cooling system to foretell 2 years needs to change once.
Overseas enterprise thinks that engine tradition cooling fluid (water, ethylene glycol etc.) is difficult to meet higher cooling requirement, has breakthrough aspect the Novel heat transfer medium that high efficiency cooling Technology Need is high at exploitation thermal conductivity, specific heat capacity is large.
Summary of the invention
For solving the problems of the technologies described above, the object of this invention is to provide that a kind of thermal conductivity is strong, freezing point is low, boiling point is high, graphene oxide water-free cooling and preparation method thereof for erosion-resisting engine.
A kind of engine graphene oxide water-free cooling of the present invention, the composite corrosion inhibitor that the silicone antifoam agent that the graphene oxide that the propylene glycol that the ethylene glycol that is 30～65% by weight percent, weight percent are 30～65%, weight percent are 0.2～3%, weight percent are 0.2～2% and weight percent are 0.7～8% mixes and stirs to dissolving and obtaining water-free cooling.
Further, weight percent with total composition calculates, the metal inhibitor that composite corrosion inhibitor is 0.4～5% by weight percent and weight percent are that 0.3～3% neutralizing agent mixes together, the tolyl-triazole that described metal inhibitor is 0.1～2% by weight percent, weight percent is 0.1～2% phenylpropyl alcohol triazole, weight percent is that the ammonium molybdate that 0.1～1% phosphoric acid and weight percent are 0.1～1% mixes, the sebacic acid that described neutralizing agent is 0.1～2% by weight percent, weight percent is that the sodium hydroxide that 0.1～2% citric acid and weight percent are 0.1～2% mixes.
Further, the composite corrosion inhibitor that the silicone antifoam agent that the graphene oxide that the propylene glycol that the ethylene glycol that is 40～50% by weight percent, weight percent are 45～50%, weight percent are 1～3%, weight percent are 1～1.5% and weight percent are 2～6% mixes and stirs to dissolving and obtaining water-free cooling, weight percent with total composition calculates, the metal inhibitor that described composite corrosion inhibitor is 1～3% by weight percent and weight percent are that 1～3% neutralizing agent mixes together, the tolyl-triazole that described metal inhibitor is 0.3～1.5% by weight percent, weight percent is 0.3～1% phenylpropyl alcohol triazole, weight percent is that the ammonium molybdate that 0.2～1% phosphoric acid and weight percent are 0.2～1% mixes together, the sebacic acid that described neutralizing agent is 0.3～1.2% by weight percent, weight percent is that the sodium hydroxide that 0.4～2% citric acid and weight percent are 0.3～1.5% mixes together.
Further, the composite corrosion inhibitor that the silicone antifoam agent that the graphene oxide that the propylene glycol that the ethylene glycol that is 45～48% by weight percent, weight percent are 45～48%, weight percent are 2～3%, weight percent are 1.1～1.3% and weight percent are 3.5～5% mixes and stirs to dissolving and obtaining water-free cooling, weight percent with total composition calculates, the metal inhibitor that described composite corrosion inhibitor is 2～2.5% by weight percent and weight percent are that 1.5～2.5% neutralizing agent mixes together, the tolyl-triazole that described metal inhibitor is 1～1.5% by weight percent, weight percent is 0.4～0.8% phenylpropyl alcohol triazole, weight percent is that the ammonium molybdate that 0.5～0.8% phosphoric acid and weight percent are 0.5～0.8% mixes together, the sebacic acid that described neutralizing agent is 0.5～1% by weight percent, weight percent is that the sodium hydroxide that 0.4～1% citric acid and weight percent are 0.5～1% mixes together.
Further, the ethylene glycol that is 45% by weight percent, weight percent is 45% propylene glycol, weight percent is 3% graphene oxide, weight percent is 1.2% silicone antifoam agent, weight percent is 1.5% tolyl-triazole, weight percent is 0.5% phenylpropyl alcohol triazole, weight percent is 0.7% phosphoric acid, weight percent is 0.7% ammonium molybdate composition, weight percent is 0.8% sebacic acid, weight percent is that sodium hydroxide that 0.8% citric acid and weight percent are 0.8% mixes and stirs to dissolving and obtaining water-free cooling.
A preparation method for graphene oxide water-free cooling for engine, is characterized in that, comprises the following steps:
S1. the ethylene glycol that is 30～65% by weight percent and weight percent are that 30～65% mixed with propylene glycol stirs, and obtain basal liquid;
S2. in the basal liquid of step S1 gained, adding weight percent is 0.2～2% silicone antifoam agent, heats and be stirred well to completely to dissolve;
S3. in step S2 gained mixing solutions, adding weight percent is 0.7～8% composite corrosion inhibitor, stirs, until dissolve completely under reflux condition;
S4. step S3 obtain mixing solutions in to add weight percent be 0.2～3% graphene oxide, frequency of utilization is not less than the ultrasonic apparatus of 40KHZ the mixing solutions obtaining is carried out to ultrasonic dispersing and dissolving, finally makes water-free cooling.
Compared with prior art, beneficial effect of the present invention is: the present invention is due to after adopting thermal conductivity to be the graphene oxide of conventional fluid medium several times, made up the relatively low attribute defect of ethylene glycol and propylene glycol thermal conductivity, and then the heat of cooling system is doubled, the final thermal conductivity that improves significantly cooling system, its thermal conductivity reaches 2 times of existing cooling fluid.Thermal conductivity of the present invention is strong, freezing point lower than-50 ℃ and boiling point up to 188.5 ℃, major cause is: 1) graphene oxide molecule is the macromole with typical two-dimensional sheet structure, its yardstick approaches or is less than the mean free path of phonons of crystalline material, make the thermal conduction of system retrained by Fourier's law, and adopt great-jump-forward and non-confinement heat to transmit; 2) fluctuation between fluid and whirlpool are strengthened; 3) sheet macromole can relax Transverse Temperature Gradient between fluid.Of the present invention anticorrosive good; major cause is: contained silicone antifoam agent is sprawled rapidly in solution surface; easily make thinning of liquid film; reach critical thickness; foam destroys; therefore can prevent better that the corrosion conditions such as spot corrosion from appearring in cooling system, especially the aluminum and its alloy in engine be had to excellent protection effect.Tolyl-triazole, phenylpropyl alcohol triazole contained in the present invention have special efficacy provide protection to in-engine steel structure parts; Neutralizing agent can Effective Regulation cooling fluid pH, make its long-term stability between 7.5～10.0; Phosphoric acid and ammonium molybdate can prevent cooling system to occur that precipitation, corrosion and water pump leak efficiently.
Embodiment
Below its body embodiment of the present invention is described in further detail; Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.
In the present invention, the activeconstituents of silicone antifoam agent is: polysiloxane, copolyether and dispersant with high efficiency, it is main body composition that silicone antifoam agent in following examples be take the silicon cream that dimethyl silicone oil and white carbon black form, and is aided with the tensio-active agents such as sorbester p17 and tween 80.
Graphene oxide in the present invention is the oxide compound of Graphene, is ratio yellow solid between 2.1 to 2.9 of a kind of carbon, oxygen quantity.Owing to there are a large amount of polar groups (as carboxyl and hydroxyl) in graphene oxide, graphene oxide is easy to dispersing and dissolving in alcoholic solution, forms single small segment, and the overwhelming majority all only has single graphite linings.
Embodiment 1
Take 45Kg ethylene glycol and 48Kg propylene glycol stirs; 1.2Kg silicone antifoam agent is added wherein, heating also carries out fully stirring about 1 hour to even with magnetic stirring apparatus again; Add successively respectively again 0.5kg tolyl-triazole, 0.5kg phenylpropyl alcohol triazole, 0.8kg sebacic acid, 0.3kg citric acid, 0.8kg sodium hydroxide, 0.7kg phosphoric acid, 0.7kg ammonium molybdate, under reflux conditions, Heating temperature to 178 ℃ stirs, until dissolve completely; Finally add 1.5kg graphene oxide, through frequency, in the ultrasonic apparatus of 60KHZ, the mixing solutions obtaining is carried out to ultrasonic dissolution, until dissolve completely, obtain water-free cooling finished product of the present invention, its freezing point is-50 ℃, and boiling point is 186 ℃.
Embodiment 2
Take 45Kg ethylene glycol and 47Kg propylene glycol stirs; Again 1.2Kg silicone antifoam agent is added wherein, with magnetic stirring apparatus, carry out fully stirring about 1 hour to even; Add successively respectively again 0.5kg tolyl-triazole, 0.5kg phenylpropyl alcohol triazole, 0.8kg sebacic acid, 0.6kg citric acid, 0.8kg sodium hydroxide, 0.7kg phosphoric acid, 0.7kg ammonium molybdate, under reflux conditions, Heating temperature to 180 ℃ stirs, until dissolve completely; Finally add 2.2kg graphene oxide, through frequency, in the ultrasonic apparatus of 60KHZ, the mixing solutions obtaining is carried out to ultrasonic dissolution, until dissolve completely, obtain water-free cooling finished product of the present invention, its freezing point is-50 ℃, and boiling point is 187.4 ℃.
Embodiment 3
Take 45Kg ethylene glycol and 45Kg propylene glycol stirs; Again 1.2Kg silicone antifoam agent is added wherein, with magnetic stirring apparatus, carry out fully stirring about 1 hour to even; Add successively respectively again 1.5kg tolyl-triazole, 0.5kg phenylpropyl alcohol triazole, 0.8kg sebacic acid, 0.8kg citric acid, 0.8kg sodium hydroxide, 0.7kg phosphoric acid, 0.7kg ammonium molybdate, under reflux conditions, Heating temperature to 183 ℃ stirs, until dissolve completely; Finally add 3kg graphene oxide, through frequency, in the ultrasonic apparatus of 60KHZ, the mixing solutions obtaining is carried out to ultrasonic dissolution, until dissolve completely, obtain water-free cooling finished product of the present invention, its freezing point is-50 ℃, and boiling point is 188.5 ℃.
Product of the present invention send Chinese People's Liberation Army's oil plant and POL equipment to detect after the check of test center, and under survey report is shown in, the partial test data in report are as follows:
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.
Claims (6)
1. an engine graphene oxide water-free cooling, is characterized in that: the composite corrosion inhibitor that the silicone antifoam agent that the graphene oxide that the propylene glycol that the ethylene glycol that is 30～65% by weight percent, weight percent are 30～65%, weight percent are 0.2～3%, weight percent are 0.2～2% and weight percent are 0.7～8% mixes and stirs to dissolving and obtaining water-free cooling.
2. engine according to claim 1 graphene oxide water-free cooling, it is characterized in that: the neutralizing agent that the metal inhibitor that described composite corrosion inhibitor is 0.4～5% by weight percent and weight percent are 0.3～3% mixes together, the tolyl-triazole that described metal inhibitor is 0.1～2% by weight percent, weight percent is 0.1～2% phenylpropyl alcohol triazole, weight percent is that the ammonium molybdate that 0.1～1% phosphoric acid and weight percent are 0.1～1% mixes, the sebacic acid that described neutralizing agent is 0.1～2% by weight percent, weight percent is that the sodium hydroxide that 0.1～2% citric acid and weight percent are 0.1～2% mixes.
3. engine according to claim 2 graphene oxide water-free cooling, it is characterized in that: the ethylene glycol that is 40～50% by weight percent, weight percent is 45～50% propylene glycol, weight percent is 1～3% graphene oxide, weight percent is that composite corrosion inhibitor that 1～1.5% silicone antifoam agent and weight percent are 2～6% mixes and stirs to dissolving and obtaining water-free cooling, the metal inhibitor that described composite corrosion inhibitor is 1～3% by weight percent and weight percent are that 1～3% neutralizing agent mixes together, the tolyl-triazole that described metal inhibitor is 0.3～1.5% by weight percent, weight percent is 0.3～1% phenylpropyl alcohol triazole, weight percent is that the ammonium molybdate that 0.2～1% phosphoric acid and weight percent are 0.2～1% mixes together, the sebacic acid that described neutralizing agent is 0.3～1.2% by weight percent, weight percent is that the sodium hydroxide that 0.4～2% citric acid and weight percent are 0.3～1.5% mixes together.
4. engine according to claim 3 graphene oxide water-free cooling, it is characterized in that: the ethylene glycol that is 45～48% by weight percent, weight percent is 45～48% propylene glycol, weight percent is 2～3% graphene oxide, weight percent is that composite corrosion inhibitor that 1.1～1.3% silicone antifoam agent and weight percent are 3.5～5% mixes and stirs to dissolving and obtaining water-free cooling, the metal inhibitor that described composite corrosion inhibitor is 2～2.5% by weight percent and weight percent are that 1.5～2.5% neutralizing agent mixes together, the tolyl-triazole that described metal inhibitor is 1～1.5% by weight percent, weight percent is 0.4～0.8% phenylpropyl alcohol triazole, weight percent is that the ammonium molybdate that 0.5～0.8% phosphoric acid and weight percent are 0.5～0.8% mixes together, the sebacic acid that described neutralizing agent is 0.5～1% by weight percent, weight percent is that the sodium hydroxide that 0.4～1% citric acid and weight percent are 0.5～1% mixes together.
5. engine according to claim 4 graphene oxide water-free cooling, it is characterized in that: the ethylene glycol that is 45% by weight percent, weight percent is 45% propylene glycol, weight percent is 3% graphene oxide, weight percent is 1.2% silicone antifoam agent, weight percent is 1.5% tolyl-triazole, weight percent is 0.5% phenylpropyl alcohol triazole, weight percent is 0.7% phosphoric acid, weight percent is 0.7% ammonium molybdate composition, weight percent is 0.8% sebacic acid, weight percent is that sodium hydroxide that 0.8% citric acid and weight percent are 0.8% mixes and stirs to dissolving and obtaining water-free cooling.
6. a preparation method for graphene oxide water-free cooling for engine, is characterized in that, comprises the following steps:
S1. the ethylene glycol that is 30～65% by weight percent and weight percent are that 30～65% mixed with propylene glycol stirs, and obtain basal liquid;
S2. in the basal liquid of step S1 gained, adding weight percent is 0.2～2% silicone antifoam agent, heats and be stirred well to completely to dissolve;
S3. in step S2 gained mixing solutions, adding weight percent is 0.7～8% composite corrosion inhibitor, stirs, until dissolve completely under reflux condition;
S4. step S3 obtain mixing solutions in to add weight percent be 0.2～3% graphene oxide, frequency of utilization is not less than the ultrasonic apparatus of 40KHZ the mixing solutions obtaining is carried out to ultrasonic dissolution, finally makes water-free cooling.
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| CN103588197A (en) * | 2013-11-06 | 2014-02-19 | 华侨大学 | Preparation method for graphene nanofluid |
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