CN117603657A - Oil cooling liquid, preparation method and application thereof in immersed cooling of data center - Google Patents
Oil cooling liquid, preparation method and application thereof in immersed cooling of data center Download PDFInfo
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- CN117603657A CN117603657A CN202311602915.5A CN202311602915A CN117603657A CN 117603657 A CN117603657 A CN 117603657A CN 202311602915 A CN202311602915 A CN 202311602915A CN 117603657 A CN117603657 A CN 117603657A
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- coupling agent
- oil
- ethoxydodecafluorohexane
- trifluoromethyl
- cooling liquid
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- 239000000110 cooling liquid Substances 0.000 title claims abstract description 48
- 238000001816 cooling Methods 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000007822 coupling agent Substances 0.000 claims abstract description 75
- 239000002199 base oil Substances 0.000 claims abstract description 51
- 239000003921 oil Substances 0.000 claims abstract description 46
- HHBBIOLEJRWIGU-UHFFFAOYSA-N 4-ethoxy-1,1,1,2,2,3,3,4,5,6,6,6-dodecafluoro-5-(trifluoromethyl)hexane Chemical compound CCOC(F)(C(F)(C(F)(F)F)C(F)(F)F)C(F)(F)C(F)(F)C(F)(F)F HHBBIOLEJRWIGU-UHFFFAOYSA-N 0.000 claims abstract description 44
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000002994 raw material Substances 0.000 claims abstract description 17
- XPBBUZJBQWWFFJ-UHFFFAOYSA-N fluorosilane Chemical compound [SiH3]F XPBBUZJBQWWFFJ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 10
- 239000010742 number 1 fuel oil Substances 0.000 claims abstract description 3
- 239000002826 coolant Substances 0.000 claims description 21
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 12
- DHWSSXSOLMVYTR-UHFFFAOYSA-N C(CCCCCCCCCCCC)CO[Si](OC)(OC)CCCCCCCC Chemical compound C(CCCCCCCCCCCC)CO[Si](OC)(OC)CCCCCCCC DHWSSXSOLMVYTR-UHFFFAOYSA-N 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 18
- 230000017525 heat dissipation Effects 0.000 abstract description 16
- 239000000463 material Substances 0.000 abstract description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052804 chromium Inorganic materials 0.000 abstract description 5
- 239000011651 chromium Substances 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 238000003756 stirring Methods 0.000 description 9
- LLZRNZOLAXHGLL-UHFFFAOYSA-J titanic acid Chemical compound O[Ti](O)(O)O LLZRNZOLAXHGLL-UHFFFAOYSA-J 0.000 description 9
- YUYCVXFAYWRXLS-UHFFFAOYSA-N trimethoxysilane Chemical compound CO[SiH](OC)OC YUYCVXFAYWRXLS-UHFFFAOYSA-N 0.000 description 9
- 230000007797 corrosion Effects 0.000 description 8
- 238000005260 corrosion Methods 0.000 description 8
- 238000010292 electrical insulation Methods 0.000 description 8
- 238000002156 mixing Methods 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- 230000015556 catabolic process Effects 0.000 description 6
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical group CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 6
- 238000012546 transfer Methods 0.000 description 6
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 5
- 239000011737 fluorine Substances 0.000 description 5
- 229910052731 fluorine Inorganic materials 0.000 description 5
- 230000004907 flux Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- BSYQEPMUPCBSBK-UHFFFAOYSA-N [F].[SiH4] Chemical compound [F].[SiH4] BSYQEPMUPCBSBK-UHFFFAOYSA-N 0.000 description 4
- 238000013329 compounding Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000003993 interaction Effects 0.000 description 4
- 230000002195 synergetic effect Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000012809 cooling fluid Substances 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000002144 chemical decomposition reaction Methods 0.000 description 1
- 238000007385 chemical modification Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 238000010998 test method Methods 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
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/10—Liquid materials
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
- C10M2211/04—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions containing carbon, hydrogen, halogen, and oxygen
- C10M2211/042—Alcohols; Ethers; Aldehydes; Ketones
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
- C10M2227/04—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions having a silicon-to-carbon bond, e.g. organo-silanes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
- C10M2227/06—Organic compounds derived from inorganic acids or metal salts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
- C10M2227/06—Organic compounds derived from inorganic acids or metal salts
- C10M2227/065—Organic compounds derived from inorganic acids or metal salts derived from Ti or Zr
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/14—Electric or magnetic purposes
- C10N2040/16—Dielectric; Insulating oil or insulators
Abstract
The invention discloses an oil cooling liquid, a preparation method and application thereof in immersed cooling of a data center. The oil cooling liquid comprises the following raw materials in percentage by mass: 2-30% of 2- (trifluoromethyl) -3-ethoxydodecafluorohexane; 0.1-5% of coupling agent; the balance is base oil, wherein the base oil is GTL base oil or CTL coal oil, and the coupling agent is at least one of titanate coupling agent, organic chromium coupling agent, fluorosilane coupling agent and silane coupling agent. The oil cooling liquid provided by the invention has good performance in the aspects of improving heat dissipation efficiency, environmental friendliness, safety, fluidity, chemical stability and material compatibility, and is suitable for being applied to immersed cooling of a data center.
Description
Technical Field
The invention relates to an oil cooling liquid, a preparation method and application thereof in immersed cooling of a data center.
Background
With the rapid development of electronic technologies such as power batteries, data centers and chips, the heat flux density of electronic equipment is remarkably improved, and particularly on some key electronic components, the local heat flux density can reach 1.5KW/cm 2 . This phenomenon of high heat flux not only presents new technical challenges, but also has a profound impact on the performance and lifetime of the device. Under high thermal loads, the electronic device may overheat, which may not only lead to reduced performance, but also may cause component damage, thereby shortening the service life. In addition, overheating may also lead to reduced equipment efficiency and increased failure rates. Therefore, finding an effective heat dissipation solution is critical to ensuring reliable and efficient operation of the electronic device.
In early days, heat dissipation of electronic devices was primarily dependent on air-cooled systems. The air cooling system is widely applied due to the advantages of simple structure, low cost, strong stability, easy maintenance and the like. However, the heat dissipation efficiency is relatively low, and it is difficult to meet the requirements of modern high heat flux electronic components. With the continuous development of technology, liquid cooling systems are receiving more and more attention. Liquid cooling systems are classified into indirect liquid cooling and direct liquid cooling. Indirect liquid cooling exchanges heat with electronic components mainly through cold plates or tubes, and the method has the advantages of high efficiency, rapid heat transfer capability and good temperature control uniformity. Direct liquid cooling, particularly immersion cooling, provides more adequate heat transfer and more uniform heat dissipation by immersing the electronic device directly in the cooling medium. This method is particularly suited for high power density and compact space applications.
The immersion cooling technology provides the advantages of high heat exchange efficiency, simplified structural design, high safety, easy maintenance and the like by fully immersing the electronic equipment in the cooling medium. Although the application of this technology is relatively few, its potential in handling high heat flux electronic devices is enormous. The selection of an appropriate cooling medium is critical to the success of an immersion cooling system. The ideal cooling medium should have excellent electrical insulation to prevent shorting of the electronic device. In addition, the cooling medium is required to have good stability, electrical properties, material compatibility and excellent heat exchange properties. Some high performance cooling media such as fluorinated fluids currently on the market, while excellent in performance, are limited in wide application by their high cost. Therefore, research and development of submerged cooling media that are cost-effective, have demonstrated superior performance, while being economical and practical, is a hotspot in current research. The novel cooling medium not only needs to meet the heat dissipation requirement, but also has the characteristics of environmental friendliness, no toxicity, easy recovery and the like so as to adapt to the requirement of sustainable development.
Disclosure of Invention
The invention aims to solve the technical problem of providing an oil cooling liquid, a preparation method and application thereof in immersed cooling of a data center.
Specifically, the technical scheme of the invention is as follows:
the invention provides an oil cooling liquid which comprises the following raw materials in percentage by mass:
2-30% of 2- (trifluoromethyl) -3-ethoxydodecafluorohexane;
0.1-5% of coupling agent;
the balance being base oil.
Preferably, the oil cooling liquid comprises the following raw materials in percentage by mass:
4-20% of 2- (trifluoromethyl) -3-ethoxydodecafluorohexane;
0.2-3% of coupling agent;
the balance being base oil.
Preferably, the oil cooling liquid comprises the following raw materials in percentage by mass:
6-14% of 2- (trifluoromethyl) -3-ethoxydodecafluorohexane;
0.4-1.8% of coupling agent;
the balance being base oil.
Preferably, the base oil is a GTL base oil or a CTL coal-to-liquids.
Preferably, the coupling agent is at least one of titanate coupling agent, organic chromium coupling agent, fluorosilane coupling agent and silane coupling agent.
Preferably, the coupling agent is at least one of titanate coupling agent and fluorosilane coupling agent.
Preferably, the oil cooling liquid comprises the following raw materials in percentage by mass:
6-14% of 2- (trifluoromethyl) -3-ethoxydodecafluorohexane;
0.3 to 1.2 percent of titanate coupling agent;
0.1 to 0.6 percent of fluorosilane coupling agent;
the balance being base oil.
Preferably, the fluorosilane coupling agent is tridecafluorooctyl trimethoxy silane, the silane coupling agent is vinyl trimethoxy silane, the titanate coupling agent is isopropyl triisostearate titanate, isopropyl tri (dioctyl phosphate acyloxy) titanate or LICA38 titanate coupling agent, and the organic chromium coupling agent is 2-chromium methacrylate tetra-chloride.
The invention also provides a preparation method of the oil cooling liquid, which is to stir and mix the 2- (trifluoromethyl) -3-ethoxydodecafluorohexane, the coupling agent and the base oil uniformly.
The invention also provides application of the oil cooling liquid in immersed cooling of a data center.
The oil cooling liquid provided by the invention has good performance in the aspects of improving heat dissipation efficiency, environmental friendliness, safety, fluidity, chemical stability and material compatibility, and is suitable for being applied to immersed cooling of a data center.
Detailed Description
The contents of the present invention can be more easily understood by referring to the following detailed description of preferred embodiments of the present invention and examples included. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, definitions, will control.
An oil cooling liquid comprises the following raw materials in percentage by mass:
6-14% of 2- (trifluoromethyl) -3-ethoxydodecafluorohexane;
0.4-1.8% of coupling agent;
the balance being base oil.
The oil coolant plays multiple important roles in the oil coolant, in particular to the aspects of improving the heat dissipation efficiency and ensuring the safety of electronic equipment. The following is a detailed action of 2- (trifluoromethyl) -3-ethoxydodecafluorohexane: 2- (trifluoromethyl) -3-ethoxydodecafluorohexane is an environment-friendly refrigerant because it does not destroy the ozone layer and has a low temperature effect. In the world today, where environmental protection is of increasing concern, the use of this type of substance as a cooling medium is very important. 2- (trifluoromethyl) -3-ethoxydodecafluorohexane has high heat conduction capacity due to its chemical structure. This means that it can quickly and efficiently absorb heat from the electronic device, thereby improving heat dissipation efficiency. 2- (trifluoromethyl) -3-ethoxydodecafluorohexane has low surface tension, so that the 2- (trifluoromethyl) -3-ethoxydodecafluorohexane can form a film on the surface of an electronic element more easily, and more uniform heat dissipation is realized. In addition, its excellent electrical insulation ensures the safety of the electronic equipment in submerged cooling applications, avoiding the risk of short circuits.
The addition of 2- (trifluoromethyl) -3-ethoxydodecafluorohexane can reduce the viscosity of the whole cooling liquid, thereby enhancing the fluidity and heat transfer performance of the whole cooling liquid. This is critical to maintaining efficient operation of the cooling system. 2- (trifluoromethyl) -3-ethoxydodecafluorohexane is nonflammable and has a boiling point lower than that of the base oil. Thus, its addition can improve the safety of the cooling liquid, especially in high temperature environments, reducing the risk of fire.
In summary, 2- (trifluoromethyl) -3-ethoxydodecafluorohexane plays a key role in many aspects in the oil coolant of the present invention. It not only improves the heat dissipation efficiency, but also enhances the safety and environmental friendliness of the cooling liquid,
the base oil is GTL base oil or CTL coal oil.
The base oil is a main component of the cooling liquid, and is used as a carrier of a heat dissipation medium and is responsible for absorbing and transferring heat generated by electronic equipment. This is a basic function of achieving heat dissipation and is critical to maintaining the electronic device operating within the desired temperature range. Base oils have good chemical stability, meaning that they are not susceptible to chemical decomposition or deterioration during prolonged use. This stability is critical to ensure long-term efficient operation of the cooling system. In addition, the base oils typically have low volatility and higher flash points, which help to improve the safety of the overall cooling system.
The base oil is compatible with various materials of electronic equipment without causing corrosion or damage to the materials. Meanwhile, the electronic equipment can provide a certain protection effect, help to reduce abrasion and prolong the service life of the electronic equipment. The viscosity of the base oil has an important influence on the flow properties of the cooling liquid. Proper viscosity can ensure that the cooling liquid flows smoothly in a narrow space of the electronic device, thereby realizing effective heat transfer.
The coupling agent is at least one of titanate coupling agent, organic chromium coupling agent, fluorine silane coupling agent and silane coupling agent.
However, 2- (trifluoromethyl) -3-ethoxydodecafluorohexane has the problem of poor miscibility with synthetic base oils, mainly due to the significant differences in their chemical properties and mismatch in intermolecular forces. First, 2- (trifluoromethyl) -3-ethoxydodecafluorohexane, as a fluorine-containing compound, has high chemical stability and low reactivity, mainly because the strong electronegativity of fluorine atoms results in a strong covalent bond between it and carbon atoms. This stability makes it less susceptible to interactions with other materials in chemical reactions, particularly with hydrocarbons such as synthetic base oils. Synthetic base oils are typically composed of long chain hydrocarbons, which are chemically distinct from fluorochemicals. Second, the difference in intermolecular forces is also a critical factor. The interaction forces between 2- (trifluoromethyl) -3-ethoxydodecafluorohexane and synthetic base oils are weak, mainly due to mismatch of intermolecular forces caused by differences in their molecular structures. For example, fluorine compounds may exhibit some degree of dipole moment, while hydrocarbons rely primarily on van der Waals interactions between molecules. This mismatch in forces makes it difficult to form a stable and homogeneous mixture when mixed, and thus exhibits poor miscibility. Solving this problem requires consideration of chemical modification or the use of an appropriate coupling agent to enhance the interaction force between the two substances, thereby improving their mutual solubility.
In the oil coolant of the present invention, the coupling agent plays a critical role, principally in promoting compatibility and synergy between the different components. Because of the differences in chemical properties of 2- (trifluoromethyl) -3-ethoxydodecafluorohexane and synthetic base oils, they do not form a stable and homogeneous liquid phase when directly mixed. In this case, the effect of the coupling agent is particularly important. It effectively promotes uniform mixing and compatibility between these two substances by acting as a "bridge" between them. The improved mixture is not only more stable in terms of physical properties, but also has a significant increase in heat transfer efficiency. Furthermore, the addition of the coupling agent also helps to enhance the overall thermal and chemical stability of the cooling fluid, which is important to ensure long-term efficient operation of the cooling system. Meanwhile, the uniform and stable liquid phase system can perform heat exchange more effectively, so that the cooling efficiency is improved. In addition, the coupling agent can also promote the electrical insulation of the cooling liquid, and ensure the safe operation of the electronic equipment in the immersed cooling system. Finally, by optimizing the composition of the cooling liquid, the coupling agent can also improve the compatibility with the materials of the electronic equipment, reduce corrosion and abrasion and prolong the service life of the equipment. In general, the coupling agent optimizes the physical and chemical properties of the cooling liquid by improving the intersolubility and compatibility among components, thereby playing a key role in improving the heat dissipation efficiency and guaranteeing the safety of equipment.
Preferably, the oil cooling liquid comprises the following raw materials in percentage by mass:
6-14% of 2- (trifluoromethyl) -3-ethoxydodecafluorohexane;
0.3 to 1.2 percent of titanate coupling agent;
0.1 to 0.6 percent of fluorosilane coupling agent;
the balance being base oil.
Preferably, the fluorosilane coupling agent is tridecafluorooctyl trimethoxy silane, the silane coupling agent is vinyl trimethoxy silane, the titanate coupling agent is isopropyl triisostearate titanate, isopropyl tri (dioctyl phosphate acyloxy) titanate or LICA38 titanate coupling agent, and the organic chromium coupling agent is 2-chromium methacrylate tetra-chloride.
The invention adopts titanate coupling agent, and the effect is obviously excellent. In particular, the titanate coupling agent and the fluorosilane coupling agent are adopted for compounding and synergistic effect. In the invention, the synergistic effect is generated by the combination of the titanate coupling agent and the fluorosilane coupling agent, which is mainly beneficial to the unique chemical structure and functional mechanism of the two coupling agents, and the two coupling agents jointly act on improving the intersolubility between 2- (trifluoromethyl) -3-ethoxydodecafluorohexane and synthetic base oil and the performance of the integral cooling liquid. Titanate coupling agents can interact with an inorganic substance (such as a metal oxide) at one end and can combine with an organic substance (such as a polymer) at the other end, so that the titanate coupling agents can effectively connect synthetic base oil and 2- (trifluoromethyl) -3-ethoxydodecafluorohexane, thereby enhancing the mutual combination of the two components. The fluorine silane coupling agent is particularly suitable for acting with fluorine-containing compounds because of containing fluorine, one end of the fluorine silane coupling agent is combined with inorganic substances, and the other end of the fluorine silane coupling agent interacts with organic materials, so that the dispersibility and the stability of the fluorine-containing compounds are further enhanced. When the two coupling agents are used together, they form a more stable and uniform mixture in the cooling fluid, effectively improving heat dissipation efficiency and chemical stability. The application of the compound synergistic mechanism not only optimizes the overall performance of the cooling liquid, but also improves the operation efficiency and reliability of the heat dissipation system.
The invention also provides a preparation method of the oil cooling liquid, which is to stir and mix the 2- (trifluoromethyl) -3-ethoxydodecafluorohexane, the coupling agent and the base oil uniformly.
The invention also provides application of the oil cooling liquid in immersed cooling of a data center.
In the examples and comparative examples of the present invention:
the base oil is 150SN base oil provided by North mountain lubricating oil Co., dongguan city.
2- (trifluoromethyl) -3-ethoxydodecafluorohexane, CAS accession no: 297730-93-9
Tridecafluorooctyl trimethoxysilane, CAS accession number: 85857-16-5.
Vinyltrimethoxysilane, CAS accession number: 2768-02-7.
Isopropyl triisostearate titanate, CAS accession no: 61417-49-0.
Isopropyl tri (dioctyl phosphate acyloxy) titanate, CAS accession no: 65345-34-8.
LICA38 titanate coupling agent, CAS accession number: 103432-54-8.
Example 1
An oil cooling liquid comprises the following raw materials in percentage by mass:
10% of 2- (trifluoromethyl) -3-ethoxydodecafluorohexane;
1.2% of tridecafluorooctyl trimethoxysilane;
the balance being base oil.
And (3) uniformly stirring and mixing the 2- (trifluoromethyl) -3-ethoxydodecafluorohexane, tridecafluorooctyl trimethoxysilane and base oil to prepare the oil cooling liquid.
Example 2
An oil cooling liquid comprises the following raw materials in percentage by mass:
10% of 2- (trifluoromethyl) -3-ethoxydodecafluorohexane;
vinyl trimethoxy silane 1.2%;
the balance being base oil.
And (3) uniformly stirring and mixing the 2- (trifluoromethyl) -3-ethoxydodecafluorohexane, vinyl trimethoxysilane and base oil to prepare the oil cooling liquid.
Example 3
An oil cooling liquid comprises the following raw materials in percentage by mass:
10% of 2- (trifluoromethyl) -3-ethoxydodecafluorohexane;
1.2% of isopropyl triisostearate titanate;
the balance being base oil.
And (3) uniformly stirring and mixing the 2- (trifluoromethyl) -3-ethoxydodecafluorohexane, isopropyl triisostearate titanate and base oil to prepare the oil cooling liquid.
Example 4
An oil cooling liquid comprises the following raw materials in percentage by mass:
10% of 2- (trifluoromethyl) -3-ethoxydodecafluorohexane;
1.2% of isopropyl tri (dioctyl phosphate acyloxy) titanate;
the balance being base oil.
And (3) uniformly stirring and mixing the 2- (trifluoromethyl) -3-ethoxydodecafluorohexane, isopropyl tri (dioctyl acyloxy) titanate and the base oil to prepare the oil cooling liquid.
Example 5
An oil cooling liquid comprises the following raw materials in percentage by mass:
10% of 2- (trifluoromethyl) -3-ethoxydodecafluorohexane;
1.2% of LICA38 titanic acid coupling agent;
the balance being base oil.
And (3) uniformly stirring and mixing the 2- (trifluoromethyl) -3-ethoxydodecafluorohexane, the LICA38 titanic acid coupling agent and the base oil to prepare the oil cooling liquid.
Example 6
An oil cooling liquid comprises the following raw materials in percentage by mass:
10% of 2- (trifluoromethyl) -3-ethoxydodecafluorohexane;
LICA38 titanic acid coupling agent 0.8%;
tridecafluorooctyl trimethoxy silane 0.4%;
the balance being base oil.
And (3) uniformly stirring and mixing the 2- (trifluoromethyl) -3-ethoxydodecafluorohexane, the LICA38 titanic acid coupling agent, the tridecafluorooctyl trimethoxy silane and the base oil to prepare the oil cooling liquid.
Comparative example 1
An oil cooling liquid comprises the following raw materials in percentage by mass:
10% of 2- (trifluoromethyl) -3-ethoxydodecafluorohexane;
the balance being base oil.
And (3) stirring and uniformly mixing the 2- (trifluoromethyl) -3-ethoxydodecafluorohexane and the base oil to prepare the oil cooling liquid.
Test example 1
The breakdown voltage is tested by using GB/T507-2002 insulation oil breakdown voltage measurement method.
Thermal conductivity was measured using astm d 7896-19.
The corrosion grade of the copper sheet is tested by using GB/T5096-2017 copper sheet corrosion test method of liquefied Petroleum gas.
| Breakdown voltage, KV | Thermal conductivity (40 ℃ C.), W/mK | Copper sheet corrosion (80 ℃,3 h), grade | |
| Example 1 | 42.8 | 0.138 | 1b |
| Example 2 | 39.2 | 0.136 | 1b |
| Example 3 | 43.5 | 0.141 | 1b |
| Example 4 | 43.9 | 0.143 | 1b |
| Example 5 | 46.1 | 0.147 | 1a |
| Example 6 | 48.6 | 0.149 | 1a |
| Comparative example 1 | 37.6 | 0.130 | 2b |
Comparing examples 1/5/6, example 6 shows the highest breakdown voltage (48.6 KV) in terms of breakdown voltage, indicating that it has the best electrical insulation properties. This may be due to the compounding of the LICA38 titanic acid coupling agent with tridecafluorooctyltrimethoxysilane, which combination may provide better insulation and stability at the molecular level. In contrast, the breakdown voltages of example 1 and example 5 were lower, although the data of example 5 also showed relatively high electrical insulation. In terms of thermal conductivity, all embodiments show similar thermal conductivity, but embodiment 6 is slightly higher than the other two embodiments. This shows that the compounding of the coupling agent plays a positive role in improving the heat conducting property of the oil cooling liquid. For copper corrosion testing, example 5 and example 6 each exhibited better performance (grade 1 a) and example 1 was grade 1 b. This indicates that the LICA38 titanic acid coupling agent (either alone or in combination with tridecafluorooctyltrimethoxysilane) provides better material compatibility and corrosion protection. Overall, example 6 demonstrates the best overall performance, probably due to the synergistic effect of the LICA38 titanic acid coupling agent and tridecafluorooctyltrimethoxysilane, providing better electrical insulation, thermal conductivity and corrosion protection.
The LICA38 titanic acid coupling agent can be effectively combined with synthetic base oil and 2- (trifluoromethyl) -3-ethoxydodecafluorohexane on a molecular level to form a more stable chemical structure. This stability may reduce the free ion concentration of the coolant, thereby enhancing its electrical insulation. Meanwhile, tridecafluorooctyl trimethoxy silane is used as a fluorine-containing coupling agent, and an additional insulating layer can be provided on the molecular level, so that the electrical insulation property is further enhanced. The compounding of the LICA38 titanic acid coupling agent and the tridecafluorooctyl trimethoxy silane can improve the intermolecular acting force of the cooling liquid, reduce the internal friction and further improve the heat conductivity of the cooling liquid. This synergy helps to create a more uniform heat transfer path so that heat is more efficiently transferred in the coolant.
The foregoing is merely illustrative of specific embodiments of the present invention, and the scope of the invention is not limited thereto, but any changes or substitutions that do not undergo the inventive effort should be construed as falling within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (9)
1. The oil cooling liquid is characterized by comprising the following raw materials in percentage by mass:
2-30% of 2- (trifluoromethyl) -3-ethoxydodecafluorohexane;
0.1-5% of coupling agent;
the balance being base oil.
2. The oil coolant according to claim 1, comprising the following raw materials in mass percent:
4-20% of 2- (trifluoromethyl) -3-ethoxydodecafluorohexane;
0.2-3% of coupling agent;
the balance being base oil.
3. The oil coolant according to claim 2, comprising the following raw materials in mass percent:
6-14% of 2- (trifluoromethyl) -3-ethoxydodecafluorohexane;
0.4-1.8% of coupling agent;
the balance being base oil.
4. An oil coolant according to any one of claims 1-3, wherein the base oil is a GTL base oil or a CTL coal oil.
5. An oil coolant according to any one of claims 1 to 3, wherein the coupling agent is at least one of titanate coupling agents, organochromium coupling agents, fluorosilane coupling agents and silane coupling agents.
6. The oil coolant according to claim 5, wherein the coupling agent is at least one of titanate coupling agent and fluorosilane coupling agent.
7. The oil coolant of claim 6, wherein the coupling agent is at least one of tridecyl-octyl trimethoxy silane, isopropyl triisostearate titanate, isopropyl tri (dioctyl phosphate acyloxy) titanate, and LICA38 titanate coupling agent.
8. The method for producing an oil coolant according to any one of claims 1 to 7, comprising the steps of: 2- (trifluoromethyl) -3-ethoxydodecafluorohexane, a coupling agent and base oil are stirred and mixed uniformly.
9. Use of an oil coolant according to any of claims 1-7 in data center submerged cooling.
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| CN202311602915.5A CN117603657A (en) | 2023-11-28 | 2023-11-28 | Oil cooling liquid, preparation method and application thereof in immersed cooling of data center |
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| CN202311602915.5A CN117603657A (en) | 2023-11-28 | 2023-11-28 | Oil cooling liquid, preparation method and application thereof in immersed cooling of data center |
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