CN113861948A - Cooling liquid and preparation method and application thereof - Google Patents
Cooling liquid and preparation method and application thereof Download PDFInfo
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- CN113861948A CN113861948A CN202111002639.XA CN202111002639A CN113861948A CN 113861948 A CN113861948 A CN 113861948A CN 202111002639 A CN202111002639 A CN 202111002639A CN 113861948 A CN113861948 A CN 113861948A
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- Prior art keywords
- cooling liquid
- flash point
- coolant
- parts
- dispersant
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- 239000000110 cooling liquid Substances 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title abstract description 12
- 239000002270 dispersing agent Substances 0.000 claims abstract description 22
- 239000003822 epoxy resin Substances 0.000 claims abstract description 21
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 21
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 229920002121 Hydroxyl-terminated polybutadiene Polymers 0.000 claims abstract description 6
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000002480 mineral oil Substances 0.000 claims abstract description 6
- 235000010446 mineral oil Nutrition 0.000 claims abstract description 6
- 230000015556 catabolic process Effects 0.000 claims abstract description 5
- 239000002826 coolant Substances 0.000 claims description 18
- 239000013530 defoamer Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 13
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 7
- 229920000570 polyether Polymers 0.000 claims description 7
- NHYFIJRXGOQNFS-UHFFFAOYSA-N dimethoxy-bis(2-methylpropyl)silane Chemical compound CC(C)C[Si](OC)(CC(C)C)OC NHYFIJRXGOQNFS-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- DENFJSAFJTVPJR-UHFFFAOYSA-N triethoxy(ethyl)silane Chemical compound CCO[Si](CC)(OCC)OCC DENFJSAFJTVPJR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052684 Cerium Inorganic materials 0.000 claims description 3
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical group [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 229920002545 silicone oil Polymers 0.000 claims description 3
- 238000007654 immersion Methods 0.000 claims description 2
- 239000012809 cooling fluid Substances 0.000 claims 5
- 239000003623 enhancer Substances 0.000 claims 3
- 229940008099 dimethicone Drugs 0.000 claims 1
- 239000004205 dimethyl polysiloxane Substances 0.000 claims 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 7
- 239000004014 plasticizer Substances 0.000 abstract description 3
- 230000003993 interaction Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 150000003376 silicon Chemical class 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 239000003350 kerosene Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 229920002367 Polyisobutene Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 238000013473 artificial intelligence Methods 0.000 description 1
- 239000002199 base oil Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- AMTWCFIAVKBGOD-UHFFFAOYSA-N dioxosilane;methoxy-dimethyl-trimethylsilyloxysilane Chemical compound O=[Si]=O.CO[Si](C)(C)O[Si](C)(C)C AMTWCFIAVKBGOD-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 229940083037 simethicone Drugs 0.000 description 1
- 229960002317 succinimide Drugs 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
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
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/10—Liquid materials
Abstract
The invention belongs to the technical field of liquid cooling, and particularly relates to a cooling liquid as well as a preparation method and application thereof. The cooling liquid comprises the following components in parts by weight: 20-40 parts of a mineral oil defoaming agent; 1-5 parts of oily epoxy resin; 0.01-0.1 part of Pick BYK-R605 dispersant; 5-10 parts of siloxane; 0.03-0.08 part of flash point improver; 0.02-0.06 part of hydroxyl-terminated polybutadiene. According to the cooling liquid, the interaction between the oily epoxy resin and the Pickering BYK-R605 dispersant is utilized, so that the cooling liquid is compatible with the cable, and after the cooling liquid is soaked at the temperature of 50-60 ℃ for a long time, the plasticizer of the cable cannot be separated out, and the cable cannot be hardened. In addition, the cooling liquid has the advantages of high flash point, high breakdown voltage, good heat conductivity and simple preparation method and process, and is particularly suitable for being used as an immersed liquid cooling liquid.
Description
Technical Field
The invention belongs to the technical field of liquid cooling, and particularly relates to a cooling liquid as well as a preparation method and application thereof.
Background
Due to the vigorous development of technologies such as artificial intelligence, cloud computing and big data, the performance requirements of actual services on underlying IT infrastructures are higher and higher, the power consumption of infrastructures such as servers is directly increased continuously, the power consumption of a whole cabinet and a data center is rapidly increased, and the heat dissipation requirements of the servers are higher and higher.
The liquid cooling technology effectively improves the heat dissipation problem of the data center by virtue of the outstanding advantages of high-efficiency heat dissipation and environmental protection, and is gradually outstanding in the refrigeration solution of the data center of the next generation. Among them, the cooling liquid is a key component of liquid cooling technology, and it is required to have excellent thermophysical properties and to be fully compatible with the materials that can be contacted in the system.
In the prior art, for example, patent document CN107502309B discloses a coolant and a preparation method thereof, which is prepared by adding a trace amount of antioxidant, defoamer and dispersant into traditional mineral base oil, so that various properties of the coolant are effectively improved, the coolant has a higher flash point and breakdown voltage, a lower evaporation loss and acid value and appropriate fluidity, the cooling performance is effectively improved, and the coolant also has good insulation, fire protection safety, stability and low corrosivity, and can be applied to immersed direct cooling of IT equipment in an open environment. However, after the cable of the IT equipment is soaked for 1 to 2 months at 50 to 60 ℃ for a long time, the plasticizer of the cable is easy to precipitate and harden.
Disclosure of Invention
Based on the above-mentioned shortcomings in the prior art, the present invention provides a cooling liquid, and a preparation method and applications thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
the cooling liquid comprises the following components in parts by weight:
preferably, the mineral oil defoaming agent comprises at least one of an organic silicon defoaming agent, a polyether defoaming agent and a polyether modified silicon defoaming agent.
Preferably, the siloxane includes at least one of simethicone, ethyltriethoxysilane, and diisobutyldimethoxysilane.
Preferably, the flash point improver is a cerium modified silicone oil flash point improver or a diesel flash point improver.
Preferably, the proportion of the oily epoxy resin to the Pick BYK-R605 dispersant is (200-350): 1.
preferably, the flash point of the cooling liquid is not lower than 350 ℃.
Preferably, the breakdown voltage of the cooling liquid is not lower than 60 kV.
Preferably, the thermal conductivity of the cooling liquid at 25 ℃ is not lower than 0.14W/m.K.
The invention also provides a preparation method of the cooling liquid according to any one of the above embodiments, which comprises the following steps:
(1) stirring and mixing the mineral oil defoaming agent, the oily epoxy resin and the Pickering BYK-R605 dispersant, then adding siloxane, and continuously stirring to obtain a mixture;
(2) adding a flash point improver into the mixture, stirring, adding hydroxyl-terminated polybutadiene, and stirring to obtain a mixture to be treated;
(3) vacuumizing the mixture to be treated to obtain cooling liquid;
wherein the pressure of the vacuumizing treatment is 150-300 Pa, and the time duration is not less than 30 min.
The invention also provides the use of a cooling liquid according to any of the above aspects as an immersion liquid-cooled cooling liquid.
Compared with the prior art, the invention has the beneficial effects that:
according to the cooling liquid, the interaction between the oily epoxy resin and the Pickering BYK-R605 dispersant is utilized, so that the cooling liquid is compatible with the cable, and after the cooling liquid is soaked at the temperature of 50-60 ℃ for a long time, the plasticizer of the cable cannot be separated out, and the cable cannot be hardened. In addition, the cooling liquid has the advantages of high flash point, high breakdown voltage, good heat conductivity and simple preparation method and process, and is particularly suitable for being used as an immersed liquid cooling liquid.
Drawings
FIG. 1 is a process diagram of a method for preparing a coolant according to example 1 of the present invention.
Detailed Description
The technical solution of the present invention is further explained by the following specific examples.
Example 1:
as shown in fig. 1, the method for preparing the cooling liquid of the present embodiment includes the following steps:
(1) stock preparation
28.3kg of an organic silicon defoamer (a mineral oil defoamer), 3kg of an oily epoxy resin, 0.01kg of a BYK-R605 dispersant, 7kg of diisobutyldimethoxysilane, 0.057kg of a kerosene flash point improver and 0.033kg of hydroxyl-terminated polybutadiene were weighed respectively. Wherein the proportion of the oily epoxy resin to the PickerBYK-R605 dispersant is 300: 1.
(2) blending
Adding 28.3kg of organic silicon defoaming agent into a reaction kettle, heating to control the temperature to be 25 ℃, continuously stirring at 120R/min, sequentially adding 3kg of oily epoxy resin and 0.01kg of Pic BYK-R605 dispersant, stirring for 15min, adding 7kg of siloxane, and continuously stirring for 15min to obtain a first mixture.
(3) Modification of
And adding 0.057kg of flash point improver into the mixture I, stirring for 15min, adding 0.033kg of hydroxyl-terminated polybutadiene, and stirring for 15min to obtain a modified mixture II.
(4) Removing volatile components
And vacuumizing the mixture II at normal temperature to remove volatile matters in the mixture II, wherein the pressure is 200Pa, and the vacuumizing time is 1h to obtain the final cooling liquid.
(5) Performance detection
The performance of the cooling liquid was measured, and the results are shown in table 1.
TABLE 1 table of main Performance parameters of the Cooling liquid
(6) And (5) after the performance detection reaches the standard, subpackaging and leaving the factory.
In addition, the performance of the coolant of example 1 was compared with that of a conventional coolant, as shown in table 2.
TABLE 2 comparison of the properties of the cooling liquid of example 1 with those of a conventional cooling liquid
Example 2:
the coolant of this example differs from example 1 in that:
3.5kg of oily epoxy resin and 0.01kg of Pick BYK-R605 dispersant, wherein the proportion of the oily epoxy resin to the Pick BYK-R605 dispersant is 350: 1;
the rest is the same as example 1.
Example 3:
the coolant of this example differs from example 1 in that:
2kg of oily epoxy resin and 0.01kg of Pick BYK-R605 dispersant, wherein the proportion of the oily epoxy resin to the Pick BYK-R605 dispersant is 200: 1;
the rest is the same as example 1.
Example 4:
the coolant of this example differs from example 1 in that:
0.5kg of oily epoxy resin and 0.01kg of Pick BYK-R605 dispersant, wherein the proportion of the oily epoxy resin to the Pick BYK-R605 dispersant is 50: 1;
the rest is the same as example 1.
Example 5:
the coolant of this example differs from example 1 in that:
5kg of oily epoxy resin and 0.01kg of Pick BYK-R605 dispersant, wherein the proportion of the oily epoxy resin to the Pick BYK-R605 dispersant is 500: 1;
the rest is the same as example 1.
Comparative example 1:
the coolant of this comparative example differs from example 1 in that:
only the Picker BYK-R605 dispersant was replaced with polyisobutylene bis-succinimide;
the rest is the same as example 1.
Comparative example 2:
the coolant of this comparative example differs from example 1 in that:
only the oily epoxy resin is replaced by the oily polyurethane resin;
the rest is the same as example 1.
The cables for the server were immersed in the cooling liquids of examples 1 to 5 and comparative examples 1 to 2, respectively, and the temperature was controlled to be around 55 ℃, and long-term tests were performed to obtain the time for the cables to become hard, as shown in table 3 below.
Table 3 cable conditions summary
Therefore, the cooling liquid provided by the invention effectively avoids the defect that the cable is hard after being soaked for a long time.
In the above embodiments and alternatives, the silicone defoamer may be in an amount of 20 parts, 25 parts, 28 parts, 32 parts, 36 parts, 40 parts, etc., the oily epoxy resin may be in an amount of 1 part, 2 parts, 3 parts, 3.5 parts, 4.2 parts, 5 parts, etc., the BYK-R605 dispersant may be in an amount of 0.01 part, 0.025 part, 0.05 part, 0.075 part, 0.092 part, 0.1 part, etc., and the diisobutyldimethoxysilane may be in an amount of 5 parts, 6 parts, 7 parts, 8.5 parts, 9 parts, 10 parts, etc.; the kerosene flash point improver can also be 0.03 part, 0.04 part, 0.06 part, 0.072 part, 0.08 part and the like in parts by weight; the hydroxyl-terminated polybutadiene may be 0.02, 0.035, 0.042, 0.055, 0.06, etc.
In the above embodiment and its alternative, the ratio of the oily epoxy resin to the BYK-R605 dispersant may also be 220: 1. 250: 1. 280: 1. 320, and (3) respectively: 1. 330: 1, etc.
In the above embodiments and alternatives thereof, the silicone defoamer may also be replaced with a polyether defoamer or a polyether modified silicon defoamer, and may also be replaced with at least two of the silicone defoamer, the polyether defoamer, and the polyether modified silicon defoamer.
In the above embodiments and alternatives thereof, the diisobutyldimethoxysilane may also be replaced with dimethylsilicone oil or ethyltriethoxysilane, and also with at least two of dimethylsilicone oil, ethyltriethoxysilane, and diisobutyldimethoxysilane.
In the above embodiments and alternatives thereof, the diesel flash point improver can also be replaced by a cerium modified silicone oil flash point improver.
In the above embodiment and its alternatives, the pressure of the evacuation may also be 150Pa, 180Pa, 220Pa, 250Pa, 280Pa, 300Pa, etc., and the time duration may also be 30min, 45min, 1.5h, 2h, 3h, etc., which is determined according to the actual situation.
In view of the numerous embodiments of the present invention, the experimental data of each embodiment is huge and is not suitable for being listed and explained herein one by one, but the contents to be verified and the final conclusions obtained by each embodiment are close. Therefore, the contents of the verification of each example are not described one by one here, and only examples 1 to 5 are representative to illustrate the superiority of the present invention.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
While the invention has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope thereof.
Claims (10)
1. The cooling liquid is characterized by comprising the following components in parts by weight:
2. the coolant of claim 1, wherein the mineral oil defoamer comprises at least one of a silicone defoamer, a polyether modified silicon defoamer.
3. The coolant of claim 1, wherein the siloxane comprises at least one of dimethicone, ethyltriethoxysilane, diisobutyldimethoxysilane.
4. The coolant of claim 1, wherein the flash point enhancer is a cerium modified silicone oil flash point enhancer or a diesel flash point enhancer.
5. The cooling liquid according to claim 1, wherein the proportion of the oily epoxy resin to the Pickering BYK-R605 dispersant is (200-350): 1.
6. the cooling liquid according to any one of claims 1 to 5, wherein the flash point of the cooling liquid is not lower than 350 ℃.
7. The coolant of any one of claims 1 to 5, wherein the coolant has a breakdown voltage of not less than 60 kV.
8. The cooling fluid according to any one of claims 1 to 5, wherein the cooling fluid has a thermal conductivity of not less than 0.14W/m-K at 25 ℃.
9. The method of preparing a cooling fluid according to any one of claims 1 to 8, comprising the steps of:
(1) stirring and mixing the mineral oil defoaming agent, the oily epoxy resin and the Pickering BYK-R605 dispersant, then adding siloxane, and continuously stirring to obtain a mixture;
(2) adding a flash point improver into the mixture, stirring, adding hydroxyl-terminated polybutadiene, and stirring to obtain a mixture to be treated;
(3) vacuumizing the mixture to be treated to obtain cooling liquid;
wherein the pressure of the vacuumizing treatment is 150-300 Pa, and the time duration is not less than 30 min.
10. Use of a cooling fluid according to any of claims 1 to 8 as an immersion liquid cooling fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111002639.XA CN113861948B (en) | 2021-08-30 | 2021-08-30 | Cooling liquid and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111002639.XA CN113861948B (en) | 2021-08-30 | 2021-08-30 | Cooling liquid and preparation method and application thereof |
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| Publication Number | Publication Date |
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| CN113861948A true CN113861948A (en) | 2021-12-31 |
| CN113861948B CN113861948B (en) | 2023-11-24 |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115216060A (en) * | 2022-08-17 | 2022-10-21 | 杭州云酷智能科技有限公司 | Hydrolysis-resistant AlN powder and preparation method and application thereof |
| CN115322753A (en) * | 2022-09-14 | 2022-11-11 | 杭州云酷智能科技有限公司 | Cooling liquid and preparation method and application thereof |
| CN115819977A (en) * | 2022-12-15 | 2023-03-21 | 杭州云酷智能科技有限公司 | Heat conduction gasket and liquid cooling equipment |
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| CN107502309A (en) * | 2017-08-23 | 2017-12-22 | 深圳绿色云图科技有限公司 | A kind of coolant and preparation method thereof |
| US20210079281A1 (en) * | 2018-01-22 | 2021-03-18 | Zhuocong (Shanghai) Environmental Protection Technology Development Co., Ltd. | Immersion type heat dissipation cooling liquid for power lithium battery and method for preparing thereof |
| CN112812756A (en) * | 2020-12-31 | 2021-05-18 | 兰洋(宁波)科技有限公司 | Low-oiliness cooling liquid |
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2021
- 2021-08-30 CN CN202111002639.XA patent/CN113861948B/en active Active
Patent Citations (4)
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| CN106433397A (en) * | 2016-09-20 | 2017-02-22 | 蓝色海洋（天津）工程技术有限公司 | Low-temperature-resistant solvent-free and thick-film type epoxy anticorrosive paint |
| CN107502309A (en) * | 2017-08-23 | 2017-12-22 | 深圳绿色云图科技有限公司 | A kind of coolant and preparation method thereof |
| US20210079281A1 (en) * | 2018-01-22 | 2021-03-18 | Zhuocong (Shanghai) Environmental Protection Technology Development Co., Ltd. | Immersion type heat dissipation cooling liquid for power lithium battery and method for preparing thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115216060A (en) * | 2022-08-17 | 2022-10-21 | 杭州云酷智能科技有限公司 | Hydrolysis-resistant AlN powder and preparation method and application thereof |
| CN115322753A (en) * | 2022-09-14 | 2022-11-11 | 杭州云酷智能科技有限公司 | Cooling liquid and preparation method and application thereof |
| CN115819977A (en) * | 2022-12-15 | 2023-03-21 | 杭州云酷智能科技有限公司 | Heat conduction gasket and liquid cooling equipment |
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| Publication number | Publication date |
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| CN113861948B (en) | 2023-11-24 |
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