CN114133919B - Cooling liquid and preparation method thereof - Google Patents
Cooling liquid and preparation method thereof Download PDFInfo
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- CN114133919B CN114133919B CN202010923172.1A CN202010923172A CN114133919B CN 114133919 B CN114133919 B CN 114133919B CN 202010923172 A CN202010923172 A CN 202010923172A CN 114133919 B CN114133919 B CN 114133919B
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- cooling liquid
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- metal corrosion
- corrosion inhibitor
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- 239000000110 cooling liquid Substances 0.000 title claims abstract description 49
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 238000005260 corrosion Methods 0.000 claims abstract description 25
- 230000007797 corrosion Effects 0.000 claims abstract description 25
- 229910052751 metal Inorganic materials 0.000 claims abstract description 25
- 239000002184 metal Substances 0.000 claims abstract description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 22
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 22
- 239000003112 inhibitor Substances 0.000 claims abstract description 18
- 239000002270 dispersing agent Substances 0.000 claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 239000002904 solvent Substances 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims description 12
- 239000002518 antifoaming agent Substances 0.000 claims description 10
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- JUJWROOIHBZHMG-UHFFFAOYSA-O pyridinium Chemical compound C1=CC=[NH+]C=C1 JUJWROOIHBZHMG-UHFFFAOYSA-O 0.000 claims description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 6
- -1 poly (3-methylimidazole salt hexylthiophene Chemical compound 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical group O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- CMGDVUCDZOBDNL-UHFFFAOYSA-N 4-methyl-2h-benzotriazole Chemical compound CC1=CC=CC2=NNN=C12 CMGDVUCDZOBDNL-UHFFFAOYSA-N 0.000 claims description 5
- SZZAYUMLBMDDOM-UHFFFAOYSA-N 9-(4-prop-1-enylphenyl)carbazole Chemical compound C1=CC(C=CC)=CC=C1N1C2=CC=CC=C2C2=CC=CC=C21 SZZAYUMLBMDDOM-UHFFFAOYSA-N 0.000 claims description 5
- 150000001768 cations Chemical class 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 238000009210 therapy by ultrasound Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 238000012546 transfer Methods 0.000 abstract description 22
- 230000005764 inhibitory process Effects 0.000 abstract description 9
- 230000007774 longterm Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 13
- 239000002826 coolant Substances 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 10
- 238000013461 design Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 125000002091 cationic group Chemical group 0.000 description 2
- 239000012809 cooling fluid Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- HTKFORQRBXIQHD-UHFFFAOYSA-N allylthiourea Chemical group NC(=S)NCC=C HTKFORQRBXIQHD-UHFFFAOYSA-N 0.000 description 1
- 229960001748 allylthiourea Drugs 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000003254 anti-foaming effect Effects 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical group [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000011882 ultra-fine particle Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- 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
- C09K5/20—Antifreeze additives therefor, e.g. for radiator liquids
Abstract
The invention relates to a cooling liquid and a preparation method thereof. The cooling liquid comprises the following components in parts by weight: 2 to 8 parts of metal corrosion inhibitor, 0.1 to 5 parts of carbon nano tube, 0.2 to 10 parts of dispersing agent, 80 to 120 parts of antifreezing agent and 70 to 110 parts of solvent. The cooling liquid provided by the invention has excellent heat transfer performance and metal corrosion inhibition, and is suitable for long-term use at higher working temperature.
Description
Technical Field
The invention relates to the technical field of cooling liquid, in particular to cooling liquid and a preparation method thereof.
Background
Low carbonization has achieved widespread consensus in the automotive industry. In order to cope with the increasingly severe environmental protection pressure, the global main train enterprises set respective energy saving and emission reduction targets in the development planning of the automobile industry. The realization of the energy saving and emission reduction targets depends on the development of automobile light weight, electric and intelligent technologies and engine energy saving technologies. With the continuous improvement of engine technology, in-cylinder direct injection technology and turbocharging technology are increasingly suitable for the automobile industry. The direct injection technology and the turbocharging technology in the cylinder can accurately control the injection quantity of fuel according to the valve opening time, and improve the compression ratio of the engine, thereby reducing the oil consumption, improving the power and the torque of the engine and finally realizing the aim of saving energy. The adoption of the new technology can lead to a great increase in the working temperature of the engine while improving the performance of the engine, and if excessive heat cannot be taken away in time, the engine can be overheated, and thus a series of serious consequences can be caused. This places higher heat transfer performance demands on conventional engine coolant. In addition, to meet the light-weight requirements of automobiles, smaller-sized radiators and more compact engine cooling system designs are also being more widely used in the overall design of automobiles. This will further exacerbate the thermal load on the engine cooling system and the use of conventional engine coolant in vehicle models employing new technology, new designs, will present a significant challenge. There is a need to provide a new efficient heat transfer cooling liquid and a preparation method thereof.
Disclosure of Invention
The embodiment of the invention provides a (high-efficiency heat transfer) cooling liquid, which has higher heat transfer efficiency and is suitable for long-term use at higher working temperature.
The embodiment of the invention provides a cooling liquid, which comprises the following components in parts by weight:
the granularity of the carbon nano tube is 10-50 nm.
The cooling liquid provided by the embodiment of the invention has excellent heat transfer efficiency, can be well used in new technology and new design vehicle types, and is suitable for long-term use at higher working temperature.
According to some preferred embodiments of the invention, the composition comprises the following components in parts by weight:
the metal corrosion inhibitors include compositions of the trimeric cations pyridinium, sebacic acid, and methylbenzotriazole.
In the present invention, the combination of metal corrosion inhibitors containing the trimeric cationic pyridinium in the highly efficient heat transfer coolant system has excellent metal corrosion inhibition.
According to some preferred embodiments of the invention, the metal corrosion inhibitor is a combination of the trimeric cations pyridinium, sebacic acid and methylbenzotriazole.
In the invention, the metal corrosion inhibitor combination has excellent metal corrosion inhibition performance in the cooling liquid containing the carbon nano tube, has certain scale inhibition performance, and can provide better protection for various metals such as cast aluminum, soldering tin, copper and the like.
According to some preferred embodiments of the invention, the metal corrosion inhibitor comprises 20 to 50% of the trimeric cation pyridinium, 10 to 40% of sebacic acid and 40% of methylbenzotriazole. In the present invention, the metal corrosion inhibitor combination is more excellent in effect in the above-described amount range.
According to some preferred embodiments of the invention, the carbon nanotubes have a particle size of 20 to 30nm. In the invention, specific nanoscale ultrafine particles with better heat conductivity are introduced into the traditional engine cooling liquid, and are uniformly dispersed by adopting a proper dispersing agent, so that the heat transfer efficiency of the traditional engine cooling liquid is greatly improved. Compared with the traditional engine coolant, the novel engine coolant not only has excellent metal corrosion inhibition, good anti-foaming performance and better rubber and plastic compatibility, but also has higher heat transfer efficiency. The novel engine cooling liquid can greatly improve the heat transfer efficiency of an engine cooling system, has better cooling effect on an engine adopting energy-saving technologies such as direct injection in a cylinder, turbocharging and the like, and is also more beneficial to the lightweight design of the whole vehicle.
According to some preferred embodiments of the invention, the dispersant comprises poly (3-methylimidazole salt hexylthiophene) and 4- (N-carbazolyl) methylstyrene; preferably, the dispersing agent is 30-70% of poly (3-methylimidazole salt hexyl thiophene) and 70-30% of 4- (N-carbazolyl) methylstyrene. In the invention, the inventor unexpectedly found that the dispersant combination can stably disperse the carbon nano tubes in the water-alcohol-based solution, so that the phenomenon that the heat transfer rate is increased or reduced due to aggregation and sedimentation of the carbon nano tubes is avoided, and the heat transfer effect is enhanced.
According to some preferred embodiments of the present invention, 0.01 to 20 parts of an antifoaming agent is further included; and/or, the defoamer is PE6100;
and/or, the cooling liquid also comprises a pH regulator, wherein the pH regulator is sodium hydroxide or potassium hydroxide, and the pH regulator is added to control the pH of the cooling liquid to be 7.5-11.0; and/or, the pH regulator is sodium hydroxide or potassium hydroxide;
and/or the antifreezing agent is one or more of ethylene glycol, propylene glycol and glycerol;
and/or the solvent is deionized water.
According to some preferred embodiments of the invention, the composition of the cooling fluid is, based on 100 parts by total weight of the cooling fluid:
according to the invention, the traditional engine coolant is compounded by adopting a plurality of metal corrosion inhibitors, defoamers and antifreezes to achieve better metal material corrosion inhibition, foam resistance and nonmetallic material compatibility, but the traditional engine coolant has lower heat transfer efficiency, so that the use of the traditional engine coolant under the working condition of higher engine working temperature is limited. According to the invention, the novel engine cooling liquid with higher heat transfer efficiency is prepared by adding the nano particles with better heat conduction performance and the specific dispersing agent. Further, according to the invention, through a great deal of researches and practices, the carbon nano tube can be stably dispersed in water through the non-covalent functionalization of poly (3-methylimidazole salt hexyl thiophene) and 4- (N-carbazolyl) methyl styrene, and meanwhile, a metal corrosion inhibitor, a defoaming agent, an antifreezing agent and an acid-base regulator are added, and the composition formed by compounding according to a specific dosage can be obtained, so that the high-efficiency heat transfer cooling liquid with excellent metal corrosion inhibition, bubbling resistance and good compatibility to rubber and plastics can be obtained.
Another aspect of the present invention provides a method for preparing the cooling liquid, comprising the steps of: mixing the carbon nano tube, the dispersing agent and the solvent according to the proportion, then adding the metal corrosion inhibitor, the antifreezing agent and the acid-base regulator, stirring, then adding the defoaming agent, and stirring.
According to some preferred embodiments of the invention, the method comprises the steps of: adding the carbon nano tube and the dispersing agent into water according to the proportion, carrying out ultrasonic treatment for more than 30 minutes, adding the metal corrosion inhibitor, the antifreezing agent and the acid-base regulator, stirring for 30-60 minutes, and adding the defoaming agent, and stirring for 10-20 minutes.
Compared with the prior art, the cooling liquid provided by the invention has at least the following advantages:
(1) According to the invention, the carbon nano tube is introduced into the cooling liquid, so that the heat transfer efficiency of the cooling liquid of the traditional engine is greatly improved, the problem of engine temperature rise caused by the direct injection technology and the turbocharging technology in a cylinder is solved, and the realization of light weight and compact design of an automobile is facilitated.
(2) The cooling liquid can stably disperse the carbon nano tubes in the cooling liquid through the specific dispersing agent combination, and solves the problem that the carbon nano tubes are easy to aggregate and precipitate in the cooling liquid.
(3) The cooling liquid has good protection effect on metal materials such as cast aluminum, soldering tin, copper and the like, and ensures long-term use of the cooling liquid in a cooling liquid system.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to examples. It is to be understood that the following examples are given for illustrative purposes only and are not intended to limit the scope of the present invention. Various modifications and alterations of this invention may be made by those skilled in the art without departing from the spirit and scope of this invention.
In the present invention, the weight parts may be mg, g, kg, etc., as known in the art, or may be multiples thereof, such as 1/10, 1/100, 10 times, 100 times, etc.
The experimental methods used in the following examples are conventional methods unless otherwise specified.
Materials, reagents and the like used in the examples described below are commercially available unless otherwise specified.
In the invention, the preparation method of the cooling liquid provided by the following examples comprises the following steps: adding the carbon nano tube and the dispersing agent into water according to the proportion, carrying out ultrasonic treatment for more than 30 minutes, then sequentially adding the metal corrosion inhibitor, the antifreezing agent and the acid-base regulator, stirring for 30-60 minutes, and then adding the defoaming agent, stirring for 10-20 minutes; wherein, the pH value of the cooling liquid is controlled to be 7.5-11.0 by adding the acid-base regulator.
Example 1
The composition of the cooling liquid (total mass 100 kg) provided in this example was:
example 2
The composition of the cooling liquid (total mass 100 kg) provided in this example was:
example 3
The composition of the cooling liquid (total mass 100 kg) provided in this example was:
comparative example 1
This comparative example provides a cooling liquid, and the other composition and ratio are the same as in example 1, except that carbon nanotubes are removed.
Comparative example 2
This comparative example provides a coolant, other compositions and proportions are the same as in example 1, except that poly (3-methylimidazole salt hexylthiophene) and 4- (N-carbazolyl) methylstyrene are replaced with sodium dodecylbenzenesulfonate in the same amount as in example 1.
Comparative example 3
This comparative example provides a coolant, other compositions and proportions being the same as in example 1, except that the trimeric cationic pyridinium is replaced with allylthiourea in the same amount as in example 1.
Comparative example 4
This comparative example provides a cooling liquid, and the other composition and proportion are the same as in example 1, except that the carbon nanotubes are changed to 70nm particle size.
The above examples and comparative examples were tested according to the test method specified in ASTM D3306, the test results are shown in table 1, and table 1 also shows the heat conductivity increase rates and heat transfer enhancement percentages of the above examples and comparative examples, which are defined as follows:
TABLE 1 results of coolant tests
As can be seen from the above examples: 1) According to the high-efficiency heat transfer cooling liquid, the carbon nanotubes are added into the cooling liquid, so that the heat conductivity coefficient of the cooling liquid is greatly improved, and the heat transfer efficiency of the cooling liquid is greatly enhanced; 2) The high-efficiency heat transfer cooling liquid selects the dispersing agent with specific combination to stably disperse the carbon nano tubes in the cooling liquid for a long time, thereby achieving the purpose of enhancing heat transfer; 3) The high-efficiency heat transfer cooling liquid provided by the invention selects a metal corrosion inhibitor with specific combination aiming at the cooling liquid containing the carbon nano tubes, has a good protection effect on metal materials such as cast aluminum, soldering tin, copper and the like, has excellent metal corrosion inhibition performance and has certain scale inhibition performance.
While the invention has been described in detail in the foregoing general description and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (3)
1. The cooling liquid is characterized by comprising the following components in parts by weight:
2-8 parts of a metal corrosion inhibitor;
0.1-2 parts of carbon nano tube;
0.2-4 parts of a dispersing agent;
80-120 parts of an antifreezing agent;
70-110 parts of a solvent;
the metal corrosion inhibitor is a composition of trimeric cation pyridinium, sebacic acid and methylbenzotriazole, wherein in the metal corrosion inhibitor, the trimeric cation pyridinium accounts for 20-50%, the sebacic acid accounts for 10-40%, and the methylbenzotriazole accounts for 40%; the granularity of the carbon nano tube is 20-30 nm; the dispersing agent comprises 30-70% of poly (3-methylimidazole salt hexylthiophene) and 70-30% of 4- (N-carbazolyl) methylstyrene; the anti-foaming agent comprises 0.01-20 parts of an anti-foaming agent, wherein the anti-foaming agent is PE6100; the cooling liquid cooling device further comprises a pH regulator, wherein the pH regulator is sodium hydroxide or potassium hydroxide, and the pH regulator is added to control the pH of the cooling liquid to be 7.5-11.0; the antifreezing agent is one or more of ethylene glycol, propylene glycol and glycerol; the solvent is deionized water.
2. The method for preparing the cooling liquid according to claim 1, comprising the steps of: mixing the carbon nano tube, the dispersing agent and the solvent according to the proportion, then adding the metal corrosion inhibitor, the antifreezing agent and the acid-base regulator, stirring, then adding the defoaming agent, and stirring.
3. The method for preparing the cooling liquid according to claim 2, comprising the steps of: adding the carbon nano tube and the dispersing agent into a solvent according to a proportion, carrying out ultrasonic treatment for more than 30 minutes, adding the metal corrosion inhibitor, the antifreezing agent and the acid-base regulator, stirring for 30-60 minutes, adding the defoaming agent, and stirring for 10-20 minutes, wherein the solvent is deionized water.
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| CN202010923172.1A CN114133919B (en) | 2020-09-04 | 2020-09-04 | Cooling liquid and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010923172.1A CN114133919B (en) | 2020-09-04 | 2020-09-04 | Cooling liquid and preparation method thereof |
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| CN114133919A CN114133919A (en) | 2022-03-04 |
| CN114133919B true CN114133919B (en) | 2024-03-01 |
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| JP2017214527A (en) * | 2016-06-02 | 2017-12-07 | 東洋インキＳｃホールディングス株式会社 | Conductive composition, thermoelectric conversion material, and thermoelectric conversion element |
| CN109880184A (en) * | 2019-02-27 | 2019-06-14 | 浙江理工大学 | A kind of preparation method of polymolecularity fibroin-chitosan -3- methylimidazole salt hexyl thiophene-multi-walled carbon nanotube gel |
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| US8075799B2 (en) * | 2007-06-05 | 2011-12-13 | South Dakota School Of Mines And Technology | Carbon nanoparticle-containing hydrophilic nanofluid with enhanced thermal conductivity |
| FR2989091B1 (en) * | 2012-04-06 | 2015-07-03 | Arkema France | BLOCK COPOLYMERS DISPERSING NANOCHARGES IN WATER |
| AU2017301744B2 (en) * | 2016-07-29 | 2023-05-18 | Ecolab Usa Inc. | Benzotriazole and tolyltriazole derivatives for corrosion mitigation |
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