CN113214803B - Dielectric cooling liquid for new energy automobile and preparation method thereof - Google Patents
Dielectric cooling liquid for new energy automobile and preparation method thereof Download PDFInfo
- Publication number
- CN113214803B CN113214803B CN202110545642.XA CN202110545642A CN113214803B CN 113214803 B CN113214803 B CN 113214803B CN 202110545642 A CN202110545642 A CN 202110545642A CN 113214803 B CN113214803 B CN 113214803B
- Authority
- CN
- China
- Prior art keywords
- cooling liquid
- antioxidant
- diester
- cooling
- new energy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000110 cooling liquid Substances 0.000 title claims abstract description 92
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 229920001971 elastomer Polymers 0.000 claims abstract description 39
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 37
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 37
- 150000005690 diesters Chemical class 0.000 claims abstract description 29
- 229920013639 polyalphaolefin Polymers 0.000 claims abstract description 26
- 238000001816 cooling Methods 0.000 claims description 32
- 238000002156 mixing Methods 0.000 claims description 22
- 230000007797 corrosion Effects 0.000 claims description 18
- 238000005260 corrosion Methods 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 18
- 239000002518 antifoaming agent Substances 0.000 claims description 17
- 239000003112 inhibitor Substances 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 230000003712 anti-aging effect Effects 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 7
- -1 alkyl diphenol Chemical compound 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical group CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 2
- DMBHHRLKUKUOEG-UHFFFAOYSA-N N-phenyl aniline Natural products C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 claims description 2
- 239000002199 base oil Substances 0.000 claims description 2
- 125000002636 imidazolinyl group Chemical group 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 12
- 230000017525 heat dissipation Effects 0.000 abstract description 9
- 238000007789 sealing Methods 0.000 abstract description 3
- 239000005022 packaging material Substances 0.000 abstract 1
- 239000000806 elastomer Substances 0.000 description 16
- 239000002826 coolant Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 12
- 238000002474 experimental method Methods 0.000 description 10
- 239000000306 component Substances 0.000 description 9
- 230000015556 catabolic process Effects 0.000 description 8
- 239000012809 cooling fluid Substances 0.000 description 7
- 229910000838 Al alloy Inorganic materials 0.000 description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 150000002739 metals Chemical class 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000013112 stability test Methods 0.000 description 4
- 229910000975 Carbon steel Inorganic materials 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000010962 carbon steel Substances 0.000 description 3
- 239000013536 elastomeric material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010618 wire wrap Methods 0.000 description 3
- KUDUQBURMYMBIJ-UHFFFAOYSA-N 2-prop-2-enoyloxyethyl prop-2-enoate Chemical compound C=CC(=O)OCCOC(=O)C=C KUDUQBURMYMBIJ-UHFFFAOYSA-N 0.000 description 2
- MYZJXPZYRNURQF-UHFFFAOYSA-N 6-amino-1-[4,6-bis(6-aminohexanoyl)-1,3,5-triazin-2-yl]hexan-1-one Chemical compound NCCCCCC(=O)C1=NC(=NC(=N1)C(CCCCCN)=O)C(CCCCCN)=O MYZJXPZYRNURQF-UHFFFAOYSA-N 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- 229920002449 FKM Polymers 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 150000002009 diols Chemical class 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 150000002462 imidazolines Chemical class 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 150000007529 inorganic bases Chemical class 0.000 description 2
- 229910017053 inorganic salt Inorganic materials 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 150000002825 nitriles Chemical class 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229940083254 peripheral vasodilators imidazoline derivative Drugs 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- YPFDHNVEDLHUCE-UHFFFAOYSA-N propane-1,3-diol Chemical compound OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- LMHAGAHDHRQIMB-UHFFFAOYSA-N 1,2-dichloro-1,2,3,3,4,4-hexafluorocyclobutane Chemical compound FC1(F)C(F)(F)C(F)(Cl)C1(F)Cl LMHAGAHDHRQIMB-UHFFFAOYSA-N 0.000 description 1
- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-naphthylamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-UHFFFAOYSA-N 0.000 description 1
- NISAHDHKGPWBEM-UHFFFAOYSA-N 2-(4-nonylphenoxy)acetic acid Chemical compound CCCCCCCCCC1=CC=C(OCC(O)=O)C=C1 NISAHDHKGPWBEM-UHFFFAOYSA-N 0.000 description 1
- AOCDQWRMYHJTMY-UHFFFAOYSA-N 5-nitro-2h-benzotriazole Chemical compound C1=C([N+](=O)[O-])C=CC2=NNN=C21 AOCDQWRMYHJTMY-UHFFFAOYSA-N 0.000 description 1
- 229920002126 Acrylic acid copolymer Polymers 0.000 description 1
- 101100407030 Arabidopsis thaliana PAO2 gene Proteins 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- XQVWYOYUZDUNRW-UHFFFAOYSA-N N-Phenyl-1-naphthylamine Chemical compound C=1C=CC2=CC=CC=C2C=1NC1=CC=CC=C1 XQVWYOYUZDUNRW-UHFFFAOYSA-N 0.000 description 1
- FSYKKLYZXJSNPZ-UHFFFAOYSA-N N-methylaminoacetic acid Natural products C[NH2+]CC([O-])=O FSYKKLYZXJSNPZ-UHFFFAOYSA-N 0.000 description 1
- 108010077895 Sarcosine Proteins 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- UVSNFZAOYHOOJO-UHFFFAOYSA-N chembl1343456 Chemical compound OC1=CC=C2N=NNC2=C1 UVSNFZAOYHOOJO-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- NVTPMUHPCAUGCB-UHFFFAOYSA-N pentyl dihydrogen phosphate Chemical compound CCCCCOP(O)(O)=O NVTPMUHPCAUGCB-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229940043230 sarcosine Drugs 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000010998 test method Methods 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
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/12—Oxygen-containing compounds
- C23F11/124—Carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/14—Nitrogen-containing compounds
- C23F11/145—Amides; N-substituted amides
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/14—Nitrogen-containing compounds
- C23F11/149—Heterocyclic compounds containing nitrogen as hetero atom
Abstract
The invention relates to a dielectric cooling liquid for a new energy automobile and a preparation method thereof, wherein the dielectric cooling liquid for the new energy automobile comprises diester, rubber antioxidant and poly-alpha-olefin, and the weight ratio of the diester to the poly-alpha-olefin to the rubber antioxidant is (20-50): (40-80): (0.05-0.5). The dielectric cooling liquid adopts an oily system, has excellent insulating property, and does not have the risks of electric conduction and short circuit; and the problem of poor compatibility of an oily system and materials such as electric wire packaging materials and sealing elements can be solved, and conditions are provided for realizing uniform heat dissipation by large-area contact of the battery through cooling liquid. The cooling liquid obtained by the preparation method has good stability.
Description
Technical Field
The invention relates to the field of new energy automobiles, in particular to dielectric cooling liquid for a new energy automobile and a preparation method thereof.
Background
In recent years, with the rise and application of new energy automobiles, the automobile industry gradually enters the "oil-free" era. Compared with the traditional automobile, the new energy automobile reduces related components of the internal combustion engine and increases the transmission situation taking the battery as energy output. The existing lithium battery for the vehicle generates heat due to chemical reaction during power generation, and when the temperature rises to more than 45 ℃, the power generation performance is greatly reduced, and a special cooling system is required.
Taking tesla MODEL S as an example, the battery and the cooling system are combined together, and during the energy storage and discharge process of the battery, a large amount of heat is released due to chemical actions such as electrolysis, and the heat must be taken away in time to effectively control the temperature, otherwise, the consistency of the battery is affected, and the service life of the battery is greatly shortened. This excess heat is typically removed by circulation of a coolant.
In the field of electric vehicles, the efficiency of cooling fluids is different from that of internal combustion engine vehicles, and the cooling protection is required not only during the running process of the vehicles, but also during parking and charging. In the field of new energy automobiles, the cooling liquid is used for simultaneously cooling a plurality of core components such as a motor, a battery and a battery management system. The requirement of the battery on temperature control is very accurate, and the temperature difference is required to be within 3 ℃.
In prior art 201510691033.X an electric vehicle coolant and a preparation method thereof, an electric vehicle coolant is disclosed, which is composed of the following raw materials in percentage by weight: 0.5-3% of acrylic acid-sulfonate-amide-based copolymer; 1-3% of acrylic acid-acrylate-phosphonic acid-sulfonate; 0.01-1% of 5-nitrobenzotriazole; 2,4,6-tris (aminocaproyl) -1,3,5-triazine 0.1-2.0%; 0.5 to 1.0 percent of sodium hydroxide; 30-60% of water; 0.001 to 0.1 percent of defoaming agent; the balance of ethylene glycol.
The prior art CN104559945a discloses an inverter cooling liquid, which is composed of the following raw materials in percentage by weight: 0.5 to 3 percent of 2-hydroxyphosphonoacetic acid; 0.2 to 3 percent of amyl phosphate; 0.01-1% of 5-hydroxybenzotriazole; 2,4,6-tris (aminocaproyl) -1,3,5-triazine 0.1-2.0%; 0.5 to 1.0 percent of inorganic base; 30-60% of water; 0.001 to 0.1 percent of defoaming agent; the balance of diol. Wherein the inorganic base is sodium hydroxide, potassium hydroxide or hydrogen hydroxide. The diol is ethylene glycol, 1,2-propylene glycol or 1,3-propylene glycol.
The disclosed technologies are all water-glycol-inorganic salt systems, which are widely applied to cooling systems of internal combustion engine engines and have good cooling effect. However, the water matrix system has fatal weakness in the application of new energy field, and as is well known, the electrolytic liquid has good conductivity due to the existence of positive and negative ions, and in the application field of new energy, once circuit damage occurs, short circuit occurs due to the conductivity of the cooling liquid, and finally the battery is damaged.
In addition, because the new forms of energy battery passes through the power of the electric wire series connection polylith little battery, its battery structure is special, forces cooling water channel structure more complicated and narrow and small than internal-combustion engine vehicle, and it is cooling plate to set up its cooling to it on one side of the battery during cooling mostly, and cooling efficiency is lower.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides the dielectric cooling liquid for the new energy automobile and the preparation method thereof, wherein the dielectric cooling liquid adopts an oily system, has excellent insulating property and does not have the risks of electric conduction and short circuit; the problem of poor compatibility of an oil system and materials such as a wire wrapping material and a sealing element can be solved, and conditions are provided for realizing uniform heat dissipation by large-area contact of the battery through cooling liquid.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a dielectric cooling liquid for a new energy automobile comprises diester, rubber anti-aging agent and poly-alpha-olefin; wherein the weight ratio of the diester, the poly-alpha-olefin and the rubber antioxidant is (20-50): (40-80): (0.05-0.5).
Preferably, the dielectric cooling liquid further comprises an additive, wherein the additive at least comprises one of an antioxidant, a corrosion inhibitor and an antifoaming agent.
Preferably, the dielectric cooling liquid comprises, by weight, 20-50% of diester, 0.05-0.5% of rubber antioxidant, 0.5-3% of corrosion inhibitor, 1-5% of antioxidant, 0.01-0.1% of antifoaming agent, and the balance of poly-alpha-olefin.
Preferably, neither the diester nor the polyalphaolefin has a kinematic viscosity greater than 3cst at 100 ℃.
Preferably, the rubber antioxidant comprises at least one of an amine antioxidant and a phenol antioxidant. More preferably, the rubber antioxidant is antioxidant 264, preferably produced by Bayer AG in Germany.
Preferably, the polyalphaolefin is selected from PAO2, preferably from Exxon Mobil.
Preferably, diester produced by Heda chemical and Exxonmobil chemical industry is selected.
Preferably, the antioxidant at least comprises one of aniline antioxidant, naphthylamine antioxidant and macromolecular phenol antioxidant;
the corrosion inhibitor at least comprises one of N-acyl sarcosine, nonyl phenoxyacetic acid and imidazoline derivatives;
the anti-foaming agent is an organic silicon anti-wear agent or a composite anti-foaming agent; more preferably, the antifoaming agent is LZ889D manufactured by luborun corporation.
The dielectric cooling liquid is compatible with elastomer materials, wherein the elastomer materials at least comprise ethylene acrylate elastomer (VAMAC), acrylic resin (Polyacrylate), fluorine rubber (Viton), nitrile rubber (Nitrile) and the like.
The use method of the dielectric cooling liquid can be as follows: the direct-cooling type cooling system is used for a direct-cooling type cooling system, and the dielectric cooling liquid is directly filled into the direct-cooling type cooling system and a cooling pipeline, so that the cooling protection in the charging and discharging process can be provided for the motor. The direct cooling type electric cooling mode dielectric liquid directly contacts the charged body, has large contact area of the hot surface, and is more effective in cooling and heat dissipation; the heat dissipation is uniform, the temperature of heating elements such as a battery/motor is more uniform, more uniform and stable temperature control can be provided for the battery/motor, and great benefits are provided for prolonging the service life and using safety of the battery/motor.
The preparation method of the dielectric cooling liquid for the new energy automobile comprises the following steps: adding diester into a blending kettle, adding an antioxidant and a corrosion inhibitor, mixing, adding a rubber antioxidant, mixing, adding polyalphaolefin, mixing, and finally adding an antifoaming agent, mixing to obtain the polyester/acrylic acid copolymer.
Preferably, the diester is added into a blending kettle and heated to 30-50 ℃; then adding an antioxidant and a corrosion inhibitor in sequence, maintaining the blending temperature of 30-50 ℃ and stirring for 30-40 minutes; then heating to 60-80 ℃, adding the rubber antioxidant, maintaining the blending temperature of 60-80 ℃ and stirring for 30 minutes; and then stirring and cooling to 30 ℃, adding the polyalphaolefin base oil, stirring for 30 minutes, adding the defoaming agent, and continuously stirring for 30 minutes to obtain the modified polyalphaolefin.
By adopting the scheme, the invention has the advantages that:
1. the cooling liquid containing diester, rubber anti-aging agent and poly-alpha-olefin does not contain water or inorganic salt, has high breakdown voltage, extremely excellent dielectric insulating property and no risk of electric conduction and short circuit; the elastomer has good compatibility, solves the problem of poor compatibility of an oily system and materials such as various electric wire wrapping materials and sealing elements, and provides conditions for realizing uniform heat dissipation by large-area contact of cooling liquid with the battery. Good elastomer compatibility means that the cooling fluid does not easily deform (shrink, swell) the elastomeric material when it comes into contact with the elastomeric material, for example a wire, and that it improves the thermal resistance and delays its ageing. Wherein the closer the weight ratio of diester to polyalphaolefin is to 1:1, the less likely the elastomeric material will deform.
2. The kinematic viscosity of the dielectric cooling liquid, diester and poly-alpha-olefin is lower than 3cst, so that the dielectric cooling liquid has high heat conductivity coefficient and good heat dissipation capability. In addition, the low-temperature performance of the cooling liquid is excellent, the use temperature can reach about-70 ℃, and the use temperature is increased by about 10 ℃ compared with the-60 ℃ of the existing water system cooling liquid.
3. The weight ratio of the diester is limited not to exceed half of the total amount of the cooling liquid, and the defects caused by hydrolysis of the diester in a humid environment can be balanced by the poly-alpha-olefin, so that the cooling liquid is not too acid, the corrosion degree of materials is favorably delayed, and the service life of the battery is prolonged.
4. According to the preparation method, the raw materials are mixed in sequence, so that the compatibility of the anti-aging agent during mixing and the stability of the anti-aging agent in cooling liquid after mixing can be improved, and the anti-aging agent is not easy to separate out; the limitation of the mixing temperature is also beneficial to improving the stability of the cooling liquid, and particularly, if the mixing temperature is too high, the antioxidant can play a role too early, so that the antioxidant loses efficacy in the cooling liquid; the mixing temperature is too low, the probability of poor stability of the mixed cooling liquid is increased, the anti-aging agent is easy to separate out, and the cooling liquid with higher stability can be obtained hundred percent.
5. The dielectric cooling liquid has excellent corrosion inhibition performance on ferrous and nonferrous metals, and is suitable for all metals such as cast iron, carbon steel, aluminum alloy, magnesium aluminum alloy, copper alloy and the like; the fluidity is good, the starting is smooth, and the energy loss is extremely low;
6. the dielectric cooling liquid has the advantages of safety, practicability, applicability and full service life, and can fully meet the requirements of new energy automobiles on the dielectric cooling liquid.
Detailed Description
In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below. In the examples, the raw materials are commercially available, and thus, the details of the manufacturers are not described.
(I) Experimental method
The evaluation indexes and the corresponding experimental methods related to the embodiments of the present application are shown in table 1.
TABLE 1 evaluation index of cooling liquid and corresponding experimental method
For a specific experimental method, please refer to the above experimental method number. The storage stability test is an internal method of the invention, and the specific test method is as follows:
1. the dielectric coolant was prepared according to the above preparation method.
2. 500ml of the dielectric cooling liquid was stored at room temperature, high temperature (80 ℃ C.), and low temperature (-40) respectively.
3. Every 7 days as a cycle, the dielectric cooling liquid was taken out and observed for appearance and precipitation. And making a record. For 4 cycles.
(II) procedure of experiment
1. Experiment one
Experiment I A method for preparing dielectric cooling liquid for new energy automobiles comprises the following steps: adding diester into a blending kettle, heating to 60-80 ℃, adding a rubber antioxidant, maintaining the blending temperature of 60-80 ℃, and stirring for 30 minutes; then stirring and cooling to 30 ℃, adding poly-alpha-olefin, and continuously stirring for 30 minutes to obtain the catalyst. Samples 1-7 were prepared by the above method and the experimental data for the sample components are shown in table 2.
TABLE 2 corresponding experimental data for samples 1-9 cooling fluids
The obtained cooling liquids of samples 1 to 9 were subjected to breakdown voltage, thermal conductivity, and elastomer compatibility tests, and the test results are shown in table 3.
TABLE 3 Performance test results for samples 1-9 coolants
From the experimental results of table 3, it can be seen that:
the cooling fluids of samples 1-9 all had high breakdown voltages, extremely excellent dielectric insulation properties, and no risk of conduction and short circuit.
The cooling liquid of samples 1 to 6 passes the compatibility tests of elastomers such as ethylene acrylate elastomer (VAMAC), acrylic resin (Polyacrylate), fluorine rubber (Viton), nitrile rubber (Nitrile), and the like, solves the problem of poor compatibility of an oily system and an elastomer material, and provides conditions for realizing uniform heat dissipation by large-area contact of the cooling liquid with the battery; none of the cooling fluids of samples 7-8 passed.
The results of the cooling fluid testing of samples 1-6 show that changes in kinematic viscosity do not affect the elastomer compatibility of the cooling fluid.
And (3) conclusion of heat conductivity coefficient: the change of kinematic viscosity has certain influence on the heat conductivity coefficient of the cooling liquid, the kinematic viscosity at 100 ℃ of the sample 6 is more than 3cst, the heat conductivity coefficient is obviously less than that of other samples, and the heat conduction efficiency is relatively low.
In conclusion, the diester, the poly-alpha-olefin and the rubber antioxidant are cooperated with each other to remarkably improve the elastomer compatibility of the cooling liquid, so that the cooling liquid can be compatible with elastomer materials, and the cooling liquid can be applied to cooling of new energy batteries. Meanwhile, diester and poly-alpha-olefin with the viscosity of less than 3cst at 100 ℃ are preferably selected, so that the cooling liquid with higher heat conductivity coefficient can be obtained, and the heat conduction efficiency is higher.
2. Experiment two
Experiment two the method for preparing dielectric coolant for new energy automobiles is as follows: adding diester into a blending kettle, heating to 30-50 ℃, and then sequentially adding an antioxidant: alkyl diphenylamine + phenyl alpha naphthylamine, corrosion inhibitor: imidazoline derivatives, stirring for 30-40 minutes while maintaining the blending temperature of 30-50 ℃, heating to 60-80 ℃, adding rubber anti-aging agent, maintaining the blending temperature of 60-80 ℃, and stirring for 30 minutes; then stirring and cooling to 30 ℃, adding poly-alpha-olefin, continuing stirring for 30 minutes, adding a defoaming agent: and (3) continuously stirring the mixture for 30 minutes by using LZ889D to obtain the composition. Samples 10 to 12 and 16 to 18 were prepared by the above method, and samples 13 to 15 and 19 were prepared by adjusting the step of lacking the components correspondingly based on the preparation method of sample 12; samples 20-22 were prepared according to the method of example 12, with smooth addition and varying mixing temperatures, and the experimental data for the sample components are shown in table 4. The experimental conditions of the examples are specified in table 1.
TABLE 4 Experimental parameters for samples 10-22 Coolant
In Table 4, A is an alkyldiphenol and B is an alkyldiphenylamine; in example 10, a: B =2:3; in example 11, a: B = 2.5; in example 12, a: B = 0.5.
The obtained cooling liquids of samples 10-22 were tested for breakdown voltage, thermal conductivity, elastomer compatibility, pour point, stability, hydrolytic stability, oxidation stability, and the like, and the test results are shown in table 5.
TABLE 5 results of performance testing of the coolants prepared in examples 10-22
From the experimental results of table 5, it can be seen that:
the cooling liquid of the samples 10-12 has high breakdown voltage and good dielectric insulation performance, and can avoid the risks of electric conduction and short circuit of the existing cooling liquid; the heat conduction coefficient is excellent, and the cooling and heat dissipation capacity is excellent; the corrosion inhibitor has excellent corrosion inhibition performance on ferrous and nonferrous metals, and is suitable for all metals such as cast iron, carbon steel, aluminum alloy, magnesium aluminum alloy, copper alloy and the like; the fluidity is good, the starting is smooth, and the energy loss is extremely low; the low-temperature performance is excellent, and the use temperature can reach about-70 ℃; the elastomer has good compatibility and is suitable for various sealing materials, electric wire wrapping materials and the like.
Compared with the cooling liquid of the sample 12, the cooling liquid of the sample 13 does not contain diester, and although the cooling liquid has lower use temperature, higher breakdown voltage and thermal conductivity, the elastic compatibility of the cooling liquid does not pass, so that the service life of the cooling liquid is greatly influenced.
Compared with the cooling liquid of the sample 12, the cooling liquid of the sample 14 does not contain poly-alpha-olefin, the use temperature is influenced, the breakdown voltage and the heat conductivity coefficient are higher, but the elastic compatibility is not passed, the total acid value easy to hydrolyze is increased, the corrosivity is increased, and the service life of the cooling liquid is greatly influenced.
Compared with the cooling liquid of the sample 12, the cooling liquid of the sample 15 does not contain the rubber antioxidant, and although the cooling liquid has a lower use temperature, a higher breakdown voltage and a higher thermal conductivity coefficient, the elastic compatibility of the cooling liquid does not pass through, so that the service life of the cooling liquid is greatly influenced.
The coolant diester of sample 16 was used in an excessive amount compared to the coolant of sample 12, and the excessive diester in the humid environment could not be balanced by the polyalphaolefin, because the diester was easily hydrolyzed in the humid environment, and the coolant was easily hydrolyzed by the excessive diester, the total acid value was increased, and the corrosion risk was increased.
Compared with the cooling liquid of sample 12, the cooling liquid of sample 17 is turbid at low temperature, and in the storage stability test, turbidity appears in the first cycle, because it is easy to precipitate after the rubber antioxidant is excessive, so that the stability of the cooling liquid is affected, and the cooling liquid is easy to lose efficacy, thereby affecting the service life thereof.
The coolant of sample 18 has an excessively high kinematic viscosity, and the heat conductivity of the coolant is lowered and the cooling effect is lowered, compared to the coolant of sample 12.
Compared with the cooling liquid of the sample 12, the cooling liquid of the sample 19 does not contain an antioxidant, a corrosion inhibitor and an antifoaming agent, the oxidation induction time is shortened, and the prepared cooling liquid is easy to lose effectiveness.
The cooling liquid of sample 20 was turbid at low temperature and turbid at the first cycle in the storage stability test, compared with the cooling liquid of sample 12, because the addition sequence was adjusted and the change of the sequence during the preparation of the cooling liquid easily caused the precipitation of the rubber antioxidant from the cooling liquid, thereby affecting the stability thereof. And after the adding sequence is adjusted, the sensitivity of the components such as the antioxidant, the defoaming agent, the corrosion inhibitor and the like is deteriorated, and the components of the cooling liquid cannot play a good synergistic effect.
Compared with the cooling liquid of the sample 12, the cooling liquid of the sample 21 is turbid in the first period in the storage stability test because the temperature is too high during preparation, on one hand, the antioxidant is easy to lose efficacy, and the service life of the cooling liquid is further influenced; on the other hand, the sensitivity of the components such as the antioxidant, the defoaming agent, the corrosion inhibitor and the like is poor, and the components of the cooling liquid cannot play a good synergistic effect.
In comparison with the cooling liquid of sample 12, the cooling liquid of sample 22 was turbid when mixed at normal temperature, and the components were not compatible, resulting in failure of the cooling liquid.
In conclusion, the cooling liquid prepared by the method has good insulating property, and can avoid the risks of electric conduction and short circuit of the existing cooling liquid; the heat conductivity coefficient is large, the heat dissipation capacity is strong, the cooling effect is good, and the cooling liquid can be used under the condition of about-70 ℃, so that the cooling liquid can be used in the south and the north, and the good use effect can be achieved, and the cooling capacity of the cooling liquid is ensured; the elastomer has better elastomer compatibility, and can be suitable for various sealing materials, electric wire packing materials and the like; can be suitable for various metals including cast iron, carbon steel, aluminum alloy, magnesium aluminum alloy, copper alloy and the like; the stability is good, and the service life of the device is prolonged.
The above-described embodiments should not be construed as limiting the scope of the invention, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art. The details of the present invention are not described in detail, but are known to those skilled in the art.
Claims (2)
1. The dielectric cooling liquid for the new energy automobile is characterized by comprising diester, rubber anti-aging agent and poly-alpha-olefin, wherein the weight ratio of the diester to the poly-alpha-olefin to the rubber anti-aging agent is 20:40:0.5;
the dielectric cooling liquid also comprises an additive, wherein the additive at least comprises one of an antioxidant, a corrosion inhibitor and an antifoaming agent;
wherein the kinematic viscosity of both the diester and the polyalphaolefin is not greater than 3cst at 100 ℃; the diester is produced by Heda chemistry or Exxon Mobil chemical industry;
the rubber antioxidant is an antioxidant 264;
the antioxidant is alkyl diphenol and alkyl diphenylamine with the weight ratio of 0.5;
the corrosion inhibitor is an imidazoline derivative;
the antifoaming agent is LZ889D;
the preparation method of the dielectric cooling liquid comprises the following steps: adding diester into a blending kettle, and heating to 30-50 ℃; then adding an antioxidant and a corrosion inhibitor in sequence, maintaining the blending temperature of 30-50 ℃ and stirring for 30-40 minutes; then heating to 60-80 ℃, adding the rubber antioxidant, maintaining the blending temperature of 60-80 ℃ and stirring for 30 minutes; and then stirring and cooling to 30 ℃, adding the polyalphaolefin base oil, stirring for 30 minutes, adding the defoaming agent, and continuously stirring for 30 minutes to obtain the modified polyalphaolefin.
2. The dielectric cooling liquid for the new energy automobile as claimed in claim 1, wherein the dielectric cooling liquid comprises, by weight, 20-50% of diester, 0.05-0.5% of rubber antioxidant, 0.5-3% of corrosion inhibitor, 1-5% of antioxidant, 0.01-0.1% of anti-foaming agent, and the balance of polyalphaolefin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110545642.XA CN113214803B (en) | 2021-05-19 | 2021-05-19 | Dielectric cooling liquid for new energy automobile and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110545642.XA CN113214803B (en) | 2021-05-19 | 2021-05-19 | Dielectric cooling liquid for new energy automobile and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113214803A CN113214803A (en) | 2021-08-06 |
| CN113214803B true CN113214803B (en) | 2022-11-04 |
Family
ID=77093146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110545642.XA Active CN113214803B (en) | 2021-05-19 | 2021-05-19 | Dielectric cooling liquid for new energy automobile and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113214803B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113913163B (en) * | 2020-07-07 | 2024-03-19 | 中国石油化工股份有限公司 | Heat conduction medium and preparation method and application thereof |
| CN114317078A (en) * | 2021-12-28 | 2022-04-12 | 烟台德高石油有限公司 | New energy electric vehicle multipurpose functional liquid and preparation method and application thereof |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103374451B (en) * | 2012-04-17 | 2015-10-28 | 中国石油化工股份有限公司 | A kind of Food grade industrial gear oil composition |
| CN103374450B (en) * | 2012-04-17 | 2015-03-04 | 中国石油化工股份有限公司 | Food grade compressor oil composition |
| CN102977862B (en) * | 2012-12-21 | 2015-04-08 | 中国人民解放军空军油料研究所 | Cooling liquid composition |
| CN103333732A (en) * | 2013-06-21 | 2013-10-02 | 鞍山海华油脂化学有限公司 | Composite of special hydraulic oil for wind turbine generator and preparation method thereof |
| CN103695133B (en) * | 2013-12-25 | 2016-04-06 | 烟台德高石油有限公司 | A kind of synthesis gas compressor cooling fluid and preparation method thereof |
| CN104004568B (en) * | 2014-05-04 | 2016-04-06 | 北京联飞翔科技股份有限公司 | A kind of engine antif cooling oil additive and antifreeze cooling oil thereof |
| CN105385421A (en) * | 2015-11-25 | 2016-03-09 | 铜陵市金利电子有限公司 | Cooling fluid for power equipment of numerically-controlled machine tool |
| CN109181835A (en) * | 2018-10-16 | 2019-01-11 | 广西大学 | A kind of nitrogen bearing duplex stainless steel plate hydrostatic extrusion processing technology lubricant oil composite |
| CN111621266A (en) * | 2020-05-18 | 2020-09-04 | 广研德孚科技发展(深圳)有限公司 | Cooling liquid for electric automobile and preparation process thereof |
| CN112538394A (en) * | 2020-12-11 | 2021-03-23 | 常州龙邦润滑科技有限公司 | Air compressor cooling liquid composition and preparation method thereof |
-
2021
- 2021-05-19 CN CN202110545642.XA patent/CN113214803B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113214803A (en) | 2021-08-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113214803B (en) | Dielectric cooling liquid for new energy automobile and preparation method thereof | |
| Kalaf et al. | Experimental and simulation study of liquid coolant battery thermal management system for electric vehicles: A review | |
| CN111218259B (en) | New energy automobile power battery cooling liquid and preparation method thereof | |
| US20210079281A1 (en) | Immersion type heat dissipation cooling liquid for power lithium battery and method for preparing thereof | |
| CN107142092B (en) | Modified graphene ethylene glycol type engine coolant | |
| CN103666403A (en) | Vehicle engine cooling liquid | |
| CN107502309B (en) | Cooling liquid and preparation method thereof | |
| CN104419385A (en) | Cooling liquid for heavy-duty engine and preparation method of cooling liquid | |
| CN104884516A (en) | Heat transfer-fluid with electrical insulating properties | |
| CN114231258A (en) | Low-conductivity cooling liquid and preparation method thereof | |
| CN114317078A (en) | New energy electric vehicle multipurpose functional liquid and preparation method and application thereof | |
| CN107987803B (en) | Phosphorus-containing engine coolant and preparation method thereof | |
| CN115960584A (en) | Temperature control liquid composition for intelligent charging pile and preparation method thereof | |
| KR101204330B1 (en) | Cooling Liquid Composition for Fuel-Cell | |
| CN112360706A (en) | Immersed liquid phase-change cooling medium and application thereof in wind generating set | |
| CN106609125B (en) | A kind of electric vehicle coolant liquid and preparation method thereof | |
| CN108822414B (en) | Heat-conducting rubber material for lithium ion battery and preparation method thereof | |
| CN117448069B (en) | Special compressor oil for fuel cell air compressor and preparation method thereof | |
| CN109337656B (en) | Antifreezing solution for vehicles and preparation method thereof | |
| CN1137239C (en) | Antiager for lead-acid accumulator | |
| CN113593908B (en) | Aluminum electrolytic capacitor electrolyte, preparation method thereof and aluminum electrolytic capacitor | |
| CN114854377A (en) | Organic type anti-freezing cooling liquid functional additive for heavy-duty engine and production method thereof | |
| CN115873565A (en) | Immersed cooling liquid for lithium ion battery | |
| CN117965230A (en) | Lubricating oil composition for oil-cooled motor pure electric vehicle reduction gearbox and preparation method thereof | |
| Khemchandani | Development of Next Generation EV Coolant. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 264006 No. 1, Yichang Road, Yantai Development Zone, Yantai area, China (Shandong) pilot Free Trade Zone, Yantai City, Shandong Province Patentee after: Yantai Degao Petroleum Co.,Ltd. Address before: 264006 No. 1, Yichang Road, Yantai Development Zone, Yantai area, China (Shandong) pilot Free Trade Zone, Yantai City, Shandong Province Patentee before: TEXAS PETROCHEM (YANTAI) Ltd. |