CN117467416A - Organic motor vehicle cooling liquid and preparation method thereof - Google Patents
Organic motor vehicle cooling liquid and preparation method thereof Download PDFInfo
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- CN117467416A CN117467416A CN202311799180.XA CN202311799180A CN117467416A CN 117467416 A CN117467416 A CN 117467416A CN 202311799180 A CN202311799180 A CN 202311799180A CN 117467416 A CN117467416 A CN 117467416A
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- 239000000110 cooling liquid Substances 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 238000003756 stirring Methods 0.000 claims abstract description 55
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000000203 mixture Substances 0.000 claims abstract description 29
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 28
- 238000002156 mixing Methods 0.000 claims abstract description 22
- CMGDVUCDZOBDNL-UHFFFAOYSA-N 4-methyl-2h-benzotriazole Chemical compound CC1=CC=CC2=NNN=C12 CMGDVUCDZOBDNL-UHFFFAOYSA-N 0.000 claims abstract description 16
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910021642 ultra pure water Inorganic materials 0.000 claims abstract description 16
- 239000012498 ultrapure water Substances 0.000 claims abstract description 16
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 15
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims abstract description 12
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims abstract description 12
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims abstract description 12
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 claims abstract description 11
- 108010010803 Gelatin Proteins 0.000 claims abstract description 11
- 239000008273 gelatin Substances 0.000 claims abstract description 11
- 229920000159 gelatin Polymers 0.000 claims abstract description 11
- 235000019322 gelatine Nutrition 0.000 claims abstract description 11
- 235000011852 gelatine desserts Nutrition 0.000 claims abstract description 11
- 235000010445 lecithin Nutrition 0.000 claims abstract description 11
- 239000000787 lecithin Substances 0.000 claims abstract description 11
- 229940067606 lecithin Drugs 0.000 claims abstract description 11
- 239000000230 xanthan gum Substances 0.000 claims abstract description 11
- 229920001285 xanthan gum Polymers 0.000 claims abstract description 11
- 235000010493 xanthan gum Nutrition 0.000 claims abstract description 11
- 229940082509 xanthan gum Drugs 0.000 claims abstract description 11
- 238000007710 freezing Methods 0.000 claims abstract description 10
- 230000008014 freezing Effects 0.000 claims abstract description 10
- 239000002826 coolant Substances 0.000 claims abstract description 7
- 229940045870 sodium palmitate Drugs 0.000 claims abstract description 6
- GGXKEBACDBNFAF-UHFFFAOYSA-M sodium;hexadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCC([O-])=O GGXKEBACDBNFAF-UHFFFAOYSA-M 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract 2
- 238000000265 homogenisation Methods 0.000 claims description 35
- WHGYBXFWUBPSRW-FOUAGVGXSA-N beta-cyclodextrin Chemical compound OC[C@H]([C@H]([C@@H]([C@H]1O)O)O[C@H]2O[C@@H]([C@@H](O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O3)[C@H](O)[C@H]2O)CO)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@@H]3O[C@@H]1CO WHGYBXFWUBPSRW-FOUAGVGXSA-N 0.000 claims description 32
- 239000003981 vehicle Substances 0.000 claims description 29
- 238000000498 ball milling Methods 0.000 claims description 15
- 239000013530 defoamer Substances 0.000 claims description 15
- 229920000858 Cyclodextrin Polymers 0.000 claims description 13
- 239000001116 FEMA 4028 Substances 0.000 claims description 13
- 235000011175 beta-cyclodextrine Nutrition 0.000 claims description 13
- 229960004853 betadex Drugs 0.000 claims description 13
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 claims description 11
- KWIUHFFTVRNATP-UHFFFAOYSA-N Betaine Natural products C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 claims description 10
- KWIUHFFTVRNATP-UHFFFAOYSA-O N,N,N-trimethylglycinium Chemical compound C[N+](C)(C)CC(O)=O KWIUHFFTVRNATP-UHFFFAOYSA-O 0.000 claims description 10
- 229960003237 betaine Drugs 0.000 claims description 10
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 claims description 10
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 10
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 10
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 10
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 10
- 235000021388 linseed oil Nutrition 0.000 claims description 10
- 239000000944 linseed oil Substances 0.000 claims description 10
- 238000009832 plasma treatment Methods 0.000 claims description 10
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 10
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 150000002191 fatty alcohols Chemical class 0.000 claims description 7
- 235000021314 Palmitic acid Nutrition 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 claims description 5
- 229940014259 gelatin Drugs 0.000 claims description 4
- 229940098695 palmitic acid Drugs 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 7
- 238000012360 testing method Methods 0.000 description 12
- 239000006260 foam Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 229910001369 Brass Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000002671 adjuvant Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000010951 brass Substances 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 230000008034 disappearance Effects 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- 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
- 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
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/10—Liquid materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides an organic motor vehicle cooling liquid and a preparation method thereof, belonging to the technical field of cooling liquid; the raw material components of the cooling liquid comprise ultrapure water, glycol, methylbenzotriazole, a defoaming agent mixture and an auxiliary agent; the preparation method of the auxiliary agent comprises the steps of mixing polyvinylpyrrolidone and gelatin, stirring at the temperature of 6.1-6.5 ℃, adding lecithin, xanthan gum and sodium palmitate, stirring again after stirring, wherein the stirring temperature is 0.1-0.3 ℃, placing in a vacuum freeze dryer after stirring, controlling the vacuum degree to be 10-14kPa, controlling the temperature to be-14 to-10 ℃ and the freezing time to be 22-26min, and naturally recovering to room temperature after vacuum freezing to obtain the auxiliary agent; the organic motor vehicle coolant prepared by the invention has low conductivity, excellent defoaming performance and good corrosion resistance.
Description
Technical Field
The invention belongs to the technical field of cooling liquid, and particularly relates to an organic motor vehicle cooling liquid and a preparation method thereof.
Background
An internal combustion engine in an automobile engine burns gasoline to generate power, and generates a large amount of heat, and the heat needs to be timely transmitted away to ensure the normal operation of the engine; and the redundant heat in the engine is conducted through the cooling liquid in the cooling system;
the cooling liquid is a cooling medium of the engine circulating cooling system, has good cooling effect, prevents boiling in summer and prevents freezing in winter, has the functions of corrosion resistance, air bubble resistance and the like, can effectively protect the cooling system and ensures the safe running of the motor vehicle.
The organic motor vehicle cooling liquid prepared by the prior art generally reduces the conductivity, but bubbles are easy to generate in the use process, so that the heat dissipation is influenced and the cavitation corrosion is accelerated;
therefore, the organic motor vehicle cooling liquid and the preparation method thereof are provided, and the technical problems to be solved in the prior art are to reduce the conductivity and enhance the defoaming performance.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides an organic motor vehicle cooling liquid and a preparation method thereof, which can reduce the conductivity and enhance the defoaming performance.
In order to solve the technical problems, the invention adopts the following technical scheme:
the organic motor vehicle cooling liquid comprises ultrapure water, glycol, methyl benzotriazole, a defoaming agent mixture and an auxiliary agent;
the mass ratio of the ultrapure water to the glycol to the tolyltriazole to the defoamer mixture to the auxiliary agent is 52-56:63-67:2.2-2.4:0.06-0.08:0.35-0.37.
1. Preparation of defoamer mixture
(1) Modified beta-cyclodextrin
Placing beta-cyclodextrin into a plasma device for plasma treatment, wherein the treatment time is 5.2-5.6min, the treatment frequency is 16-20kHz, the treatment power is 34-38W, deionized water and fatty alcohol polyoxyethylene ether are added after the plasma treatment is finished, betaine and hydroxypropyl methyl cellulose are added for stirring after uniform stirring, the stirring time is 32-40min, the stirring rotating speed is 233-247rpm, the stirring temperature is 62-68 ℃, and the modified beta-cyclodextrin is prepared after the stirring is finished;
the mass ratio of the beta-cyclodextrin to deionized water, fatty alcohol polyoxyethylene ether, betaine and hydroxypropyl methyl cellulose is 14-16:105-115:22-26:1.5-1.7:2.8-3.2;
(2) Mixing
Mixing modified beta-cyclodextrin with methacrylate, adding linseed oil, performing ball milling treatment for 42-48min at a ball milling rotating speed of 300-312rpm and a ball material ratio of 6-10:1, and obtaining a defoamer mixture after ball milling;
the mass ratio of the modified beta-cyclodextrin to the methacrylate to the linseed oil is 38-42:3.9-4.1:1.2-1.4.
2. Preparation auxiliary agent
Mixing polyvinylpyrrolidone and gelatin, stirring for 13-17min at 211-217rpm and at 6.1-6.5deg.C, adding lecithin, xanthan gum and sodium palmitate, stirring again for 25-29min at 182-190rpm and at 0.1-0.3deg.C, placing in a vacuum freeze dryer, controlling vacuum degree at 10-14kPa and temperature at-14-10deg.C, freezing for 22-26min, and naturally recovering to room temperature to obtain adjuvant;
the mass ratio of polyvinylpyrrolidone to gelatin to lecithin to xanthan gum to palmitic acid is 6.6-7.0:2.1-2.3:1.0-1.2:1.2-1.6:0.6-0.8.
The preparation method of the organic type motor vehicle cooling liquid comprises the steps of mixing ultrapure water, glycol, methylbenzotriazole, a defoaming agent mixture and an auxiliary agent, then carrying out three times of homogenization treatment, controlling the pressure of the primary homogenization treatment to be 9-11MPa, the time to be 6-8min, controlling the pressure of the secondary homogenization treatment to be 12-14MPa, the homogenization time to be 3-7min, controlling the pressure of the tertiary homogenization treatment to be 3-5MPa, the homogenization time to be 8-12min, and obtaining the organic type motor vehicle cooling liquid after the homogenization treatment is finished.
Compared with the prior art, the invention has the following beneficial effects:
1. the defoaming agent mixture is prepared by adopting a specific method, so that the defoaming performance of the cooling liquid is improved, the defoaming agent mixture is combined with specific additives and other components, the high-temperature corrosion resistance of the cooling liquid is enhanced, and the stability is improved, so that the low conductivity and the good defoaming performance can be still maintained under the premise of combined action of high temperature and ultraviolet radiation;
2. the conductivity of the organic motor vehicle coolant prepared by the invention is 0.24-0.30 mu s/cm (GB/T11007-2008);
copper, brass, stainless steel 316L and aluminum sheets 6063 are connected together, and the size of each sheet is controlled to be 50 percentThe test pieces are soaked in cooling liquid at 84 deg.c for 30d and 60d while strength of 620W/cm 2 The conductivity was again measured with ultraviolet radiation of 30d conductivity of 0.27-0.35. Mu.s/cm and 60d conductivity of 0.29-0.39. Mu.s/cm;
3. according to the test method of GB 29743-2013, the foam volume of the organic motor vehicle cooling liquid is tested to be 12-15mL, and the foam vanishing time is 0.3-0.6s;
standing the cooling liquid at 70deg.C for 30d while adopting 620W/cm strength 2 The foam volume is 16-21mL, and the foam disappearance time is 0.5-1.2s;
4. according to the method in GB 29743-2013, glassware corrosion test is carried out, the test temperature is 80 ℃, the test time is 90d, the corrosiveness to cast iron is-0.5 to-0.3 mg, the corrosiveness to steel is-0.3 to 0mg, the corrosiveness to brass is 0 to +0.2mg, the corrosiveness to red copper is +0.2 to +0.5mg, and the corrosiveness to cast aluminum is-0.7 to-0.4 mg.
Detailed Description
For a clearer understanding of the technical features, objects and effects of the present invention, specific embodiments of the present invention will be described.
Example 1 an organic Motor vehicle Cooling liquid and method for preparing the same
The organic motor vehicle cooling liquid comprises ultrapure water, glycol, methyl benzotriazole, a defoaming agent mixture and an auxiliary agent;
the mass ratio of the ultrapure water to the glycol to the tolyltriazole to the defoamer mixture to the auxiliary agent is 54:65:2.3:0.07:0.36.
1. Preparation of defoamer mixture
(1) Modified beta-cyclodextrin
Placing beta-cyclodextrin into a plasma device for plasma treatment, wherein the treatment time is 5.4min, the treatment frequency is 18kHz, the treatment power is 36W, adding deionized water and fatty alcohol-polyoxyethylene ether after the plasma treatment is finished, stirring uniformly, adding betaine and hydroxypropyl methylcellulose for stirring, the stirring time is 36min, the stirring rotating speed is 240rpm, the stirring temperature is 65 ℃, and the modified beta-cyclodextrin is prepared after the stirring is finished;
the mass ratio of the beta-cyclodextrin to deionized water, fatty alcohol polyoxyethylene ether, betaine and hydroxypropyl methyl cellulose is 15:110:24:1.6:3.0;
(2) Mixing
Mixing modified beta-cyclodextrin with methacrylate, adding linseed oil, performing ball milling treatment for 45min at a ball milling rotating speed of 306rpm and a ball-material ratio of 8:1, and obtaining a defoaming agent mixture after ball milling is finished;
the mass ratio of the modified beta-cyclodextrin to the methacrylate to the linseed oil is 40:4:1.3.
2. Preparation auxiliary agent
Mixing polyvinylpyrrolidone and gelatin, stirring for 15min at 214rpm and at 6.3 ℃, adding lecithin, xanthan gum and sodium palmitate, stirring again after stirring, stirring for 27min at 186rpm and at 0.2 ℃, placing in a vacuum freeze dryer after stirring, controlling the vacuum degree at 12kPa, controlling the temperature at-12 ℃ and the freezing time at 24min, and naturally recovering to room temperature after vacuum freezing to obtain an auxiliary agent;
the mass ratio of polyvinylpyrrolidone, gelatin, lecithin, xanthan gum and palmitic acid is 6.8:2.2:1.1:1.4:0.7.
The preparation method of the organic motor vehicle cooling liquid comprises the steps of mixing ultrapure water, glycol, methylbenzotriazole, a defoaming agent mixture and an auxiliary agent, then carrying out three times of homogenization treatment, controlling the pressure of the primary homogenization treatment to be 10MPa, the time to be 7min, controlling the pressure of the secondary homogenization treatment to be 13MPa, the homogenization time to be 5min, controlling the pressure of the three times of homogenization treatment to be 4MPa, and the homogenization time to be 10min, and obtaining the organic motor vehicle cooling liquid after the homogenization treatment is finished.
Example 2 an organic Motor vehicle Cooling liquid and method of preparing the same
The organic motor vehicle cooling liquid comprises ultrapure water, glycol, methyl benzotriazole, a defoaming agent mixture and an auxiliary agent;
the mass ratio of the ultrapure water to the glycol to the tolyltriazole to the defoamer mixture to the auxiliary agent is 52:63:2.2:0.06:0.35.
1. Preparation of defoamer mixture
(1) Modified beta-cyclodextrin
Placing beta-cyclodextrin into a plasma device for plasma treatment, wherein the treatment time is 5.2min, the treatment frequency is 16kHz, the treatment power is 34W, adding deionized water and fatty alcohol-polyoxyethylene ether after the plasma treatment is finished, stirring uniformly, adding betaine and hydroxypropyl methylcellulose for stirring, the stirring time is 32min, the stirring rotating speed is 233rpm, the stirring temperature is 62 ℃, and obtaining the modified beta-cyclodextrin after the stirring is finished;
the mass ratio of the beta-cyclodextrin to deionized water, fatty alcohol polyoxyethylene ether, betaine and hydroxypropyl methyl cellulose is 14:105:22:1.5:2.8;
(2) Mixing
Mixing modified beta-cyclodextrin with methacrylate, adding linseed oil, performing ball milling treatment for 42min at a ball milling rotating speed of 300rpm, and preparing a defoaming agent mixture after ball milling is finished, wherein the ball material ratio is 6:1;
the mass ratio of the modified beta-cyclodextrin to the methacrylate to the linseed oil is 38:3.9:1.2.
2. Preparation auxiliary agent
Mixing polyvinylpyrrolidone and gelatin, stirring for 13min at 211rpm and at 6.1deg.C, adding lecithin, xanthan gum and sodium palmitate, stirring again for 25min at 182rpm and at 0.1deg.C, placing in a vacuum freeze dryer, controlling vacuum degree at 10kPa and freezing time at-14deg.C for 22min, and naturally cooling to room temperature to obtain adjuvant;
the mass ratio of polyvinylpyrrolidone, gelatin, lecithin, xanthan gum and palmitic acid is 6.6:2.1:1.0:1.2:0.6.
The preparation method of the organic motor vehicle cooling liquid comprises the steps of mixing ultrapure water, glycol, methylbenzotriazole, a defoaming agent mixture and an auxiliary agent, then carrying out three times of homogenization treatment, controlling the pressure of the primary homogenization treatment to be 9MPa, the time to be 8min, controlling the pressure of the secondary homogenization treatment to be 12MPa, the homogenization time to be 7min, controlling the pressure of the three times of homogenization treatment to be 3MPa and the homogenization time to be 12min, and obtaining the organic motor vehicle cooling liquid after the homogenization treatment is finished.
Example 3 an organic Motor vehicle Cooling liquid and method of preparing the same
The organic motor vehicle cooling liquid comprises ultrapure water, glycol, methyl benzotriazole, a defoaming agent mixture and an auxiliary agent;
the mass ratio of the ultrapure water to the glycol to the tolyltriazole to the defoamer mixture to the auxiliary agent is 56:67:2.4:0.08:0.37.
1. Preparation of defoamer mixture
(1) Modified beta-cyclodextrin
Placing beta-cyclodextrin into a plasma device for plasma treatment, wherein the treatment time is 5.6min, the treatment frequency is 20kHz, the treatment power is 38W, adding deionized water and fatty alcohol-polyoxyethylene ether after the plasma treatment is finished, stirring uniformly, adding betaine and hydroxypropyl methylcellulose for stirring, the stirring time is 40min, the stirring rotating speed is 247rpm, the stirring temperature is 68 ℃, and obtaining the modified beta-cyclodextrin after the stirring is finished;
the mass ratio of the beta-cyclodextrin to deionized water, fatty alcohol polyoxyethylene ether, betaine and hydroxypropyl methyl cellulose is 16:115:26:1.7:3.2;
(2) Mixing
Mixing modified beta-cyclodextrin with methacrylate, adding linseed oil, performing ball milling treatment for 48min at a ball milling rotating speed of 312rpm and a ball-material ratio of 10:1, and obtaining a defoamer mixture after ball milling;
the mass ratio of the modified beta-cyclodextrin to the methacrylate to the linseed oil is 42:4.1:1.4.
2. Preparation auxiliary agent
Mixing polyvinylpyrrolidone and gelatin, stirring for 17min at 217rpm and at 6.5deg.C, adding lecithin, xanthan gum and sodium palmitate, stirring again at 29min and 190rpm at 0.3deg.C, placing in a vacuum freeze dryer, controlling vacuum degree at 14kPa and freezing time at-10deg.C for 26min, and naturally cooling to room temperature to obtain adjuvant;
the mass ratio of polyvinylpyrrolidone, gelatin, lecithin, xanthan gum and palmitic acid is 7.0:2.3:1.2:1.6:0.8.
The preparation method of the organic motor vehicle cooling liquid comprises the steps of mixing ultrapure water, glycol, methylbenzotriazole, a defoaming agent mixture and an auxiliary agent, then carrying out three times of homogenization treatment, controlling the pressure of the primary homogenization treatment to be 11MPa, the time to be 6min, controlling the pressure of the secondary homogenization treatment to be 14MPa, the homogenization time to be 3min, controlling the pressure of the tertiary homogenization treatment to be 5MPa, and the homogenization time to be 8min, and obtaining the organic motor vehicle cooling liquid after the homogenization treatment is finished.
Comparative example 1
On the basis of example 1, except that the preparation of the defoamer mixture was omitted, methacrylate was directly used as the defoamer, and the rest of the operations were the same.
Comparative example 2
Based on example 1, except that the preparation of the auxiliary agent was omitted, polyvinylpyrrolidone was directly used as the auxiliary agent, and the rest of the operations were the same.
Performance detection
1. Conductivity of
(1) The products prepared in examples 1-3 and comparative examples 1-2 were tested for electrical conductivity according to the method of GB/T11007-2008, and the test results were as follows:
(2) Connecting red copper, brass, stainless steel 316L, aluminum sheet 6063Connecting, controlling the size of each piece to be 50mm multiplied by 25mm multiplied by 2mm, separating each two pieces by using a polytetrafluoroethylene gasket to serve as test pieces, soaking the test pieces in cooling liquid at 84 ℃ for 30d and 60d, and adopting the strength of 620W/cm during soaking 2 Again, the conductivity was tested and the test results were as follows:
2. defoaming property
(1) The products prepared in examples 1-3 and comparative examples 1-2 were tested for foam volume and foam disappearance time according to the test method of GB 29743-2013, and the test results are as follows:
(2) The products obtained in examples 1-3 and comparative examples 1-2 were allowed to stand at 70℃for 30 days while using a strength of 620W/cm 2 Again, the foam volume and foam disappearance time were measured and the test results were as follows:
3. corrosion resistance
The products prepared in examples 1-3 and comparative examples 1-2 were subjected to glassware corrosion testing according to the test method in GB 29743-2013 at 80℃for 90 days, and the test results were as follows:
the percentages used in the present invention are mass percentages unless otherwise indicated.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The organic motor vehicle cooling liquid is characterized in that the raw material components of the cooling liquid comprise ultrapure water, glycol, methylbenzotriazole, a defoaming agent mixture and an auxiliary agent;
the mass ratio of the ultrapure water to the glycol to the tolyltriazole to the defoamer mixture to the auxiliary agent is 52-56:63-67:2.2-2.4:0.06-0.08:0.35-0.37;
the preparation method of the defoamer mixture comprises the steps of modifying beta-cyclodextrin and mixing;
the step of modifying beta-cyclodextrin is that the beta-cyclodextrin is placed in a plasma device for plasma treatment, the treatment time is 5.2-5.6min, the treatment frequency is 16-20kHz, the treatment power is 34-38W, deionized water and fatty alcohol polyoxyethylene ether are added after the plasma treatment is finished, betaine and hydroxypropyl methyl cellulose are added for stirring after uniform stirring, the stirring time is 32-40min, the stirring rotating speed is 233-247rpm, the stirring temperature is 62-68 ℃, and the modified beta-cyclodextrin is prepared after the stirring is finished;
mixing modified beta-cyclodextrin and methacrylate, adding linseed oil, performing ball milling for 42-48min, wherein the ball milling rotating speed is 300-312rpm, the ball-material ratio is 6-10:1, and preparing a defoamer mixture after ball milling is finished;
the preparation method of the auxiliary agent comprises the steps of mixing polyvinylpyrrolidone and gelatin, stirring for 13-17min at a stirring speed of 211-217rpm and a stirring temperature of 6.1-6.5 ℃, adding lecithin, xanthan gum and sodium palmitate for stirring again after stirring is finished, stirring for 25-29min at a stirring speed of 182-190rpm at a stirring temperature of 0.1-0.3 ℃, placing in a vacuum freeze dryer after stirring is finished, controlling the vacuum degree to be 10-14kPa, controlling the temperature to be-14 to-10 ℃ and the freezing time to be 22-26min, and naturally recovering to room temperature after vacuum freezing is finished to obtain the auxiliary agent.
2. An organic type motor vehicle coolant according to claim 1, wherein,
in the step of modifying the beta-cyclodextrin, the mass ratio of the beta-cyclodextrin to deionized water, fatty alcohol polyoxyethylene ether, betaine and hydroxypropyl methyl cellulose is 14-16:105-115:22-26:1.5-1.7:2.8-3.2.
3. An organic type motor vehicle coolant according to claim 1, wherein,
in the mixing step, the mass ratio of the modified beta-cyclodextrin to the methacrylate to the linseed oil is 38-42:3.9-4.1:1.2-1.4.
4. An organic type motor vehicle coolant according to claim 1, wherein,
in the preparation method of the auxiliary agent, the mass ratio of polyvinylpyrrolidone, gelatin, lecithin, xanthan gum and palmitic acid is 6.6-7.0:2.1-2.3:1.0-1.2:1.2-1.6:0.6-0.8.
5. A method for preparing an organic type motor vehicle coolant according to any one of claims 1 to 4,
mixing ultrapure water, glycol, tolyltriazole, a defoaming agent mixture and an auxiliary agent, then carrying out three times of homogenization treatment, controlling the pressure of the primary homogenization treatment to be 9-11MPa, the time to be 6-8min, controlling the pressure of the secondary homogenization treatment to be 12-14MPa, the homogenization time to be 3-7min, controlling the pressure of the tertiary homogenization treatment to be 3-5MPa, and the homogenization time to be 8-12min, and obtaining the organic motor vehicle cooling liquid after the homogenization treatment is finished.
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