Fluorination liquid composition containing perfluoro (poly) ether and application thereof

Abstract

The invention relates to a cooling medium, in particular to a fluorinated liquid composition containing perfluoro (poly) ether, which comprises the following components: (1) a first component comprising hexafluoropropylene dimer / trimer; and (2) the second component comprises perfluoroether or perfluoropolyether, the fluorinated liquid components are mixed in a liquid form at normal temperature and normal pressure according to the mass percent of the corresponding components, and the uniform and stable fluorinated liquid composition is obtained through uniform stirring. The fluorination liquid composition has the advantages of insulating property, incombustibility, low dielectric constant, good stability and low manufacturing cost, and can be applied as a cooling medium.

Description

Technical Field

[0001] The present invention relates to a cooling medium, in particular to a fluorinated liquid composition containing perfluoro(poly)ether and application thereof. Background Art

[0002] Liquid cooling technology can improve heat dissipation density, save energy and reduce emissions. Its widespread application in big data centers, new energy vehicles and artificial intelligence processor systems requires coolant with high cooling medium performance requirements.

[0003] Fluorinated fluids generally refer to fluorocarbons, a class of organic compounds derived by replacing some or all of the hydrogen in hydrocarbons with fluorine. They generally exhibit excellent overall heat transfer properties and are non-flammable and flash-free. Furthermore, due to their high C-F bond energy, fluorocarbons are highly inert and less reactive with other substances, making them highly compatible materials. Fluorinated fluids' stability, combined with their non-corrosive and non-conductive properties, make them suitable for use as coolants.

[0004] Fluorinated coolants can use materials such as perfluoroamines and hydrofluoroethers, but hydrofluoroethers have poor dielectric properties and perfluoroamines are more expensive. Summary of the Invention

[0005] (1) Technical problems solved

[0006] In view of the shortcomings of the existing technology, the present invention provides a fluorinated liquid composition, which has the advantages of insulating properties, non-flammability, low dielectric constant, good stability and low production cost.

[0007] (2) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A fluorinated liquid composition containing perfluoro(poly)ether, comprising the following components:

[0010] (1) The first component comprises hexafluoropropylene dimer and / or hexafluoropropylene trimer;

[0011] (2) The second component comprises a perfluoroether or a perfluoropolyether.

[0012] Preferably, the mass fraction of the first component is 10% to 50%; the mass fraction of the second component is 50% to 90%.

[0013] Preferably, the mass fraction of the first component is 20% to 40%; the mass fraction of the second component is 60% to 80%.

[0014] Preferably, the carbon number of the perfluoro(poly)ether in the second component is 4 to 18.

[0015] More preferably, the carbon number of the perfluoro(poly)ether in the second component is 5 to 12.

[0016] Preferably, the perfluoroether in the second component comprises one or more of perfluorobutyl methyl ether, 1,1,1,2,2,3,3,4,4,5,5,6,6-tridecafluorooctane, 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether, 1,1,1,2,2,3,3-heptafluoro-3-methoxypropane, 1,1,1,2,3,4,4,5,5,5-decafluoro-3-methoxy-2-trifluoromethylpentane, 3-methoxy-2-trifluoromethylperfluorobutane, 1,1,1,2,3,4,4,5,5,5-decafluoro-3-methoxy-2-trifluoromethylpentane, perfluoropropyl methyl ether, perfluoro-2-oxahexyl methyl ether, and perfluoro-3-oxabutyl methyl ether.

[0017] Preferably, the perfluoropolyether in the second component comprises polyperfluoromethyl isopropyl ether.

[0018] Preferably, the fluorinated liquid composition further contains (3) a third component, which comprises other perfluoroalkanes except hexafluoropropylene dimer or hexafluoropropylene trimer, with a mass fraction of 0 to 10%, wherein the sum of the mass fractions of (1) to (3) is 100%.

[0019] More preferably, the mass fraction of the perfluoroalkane in the third component is 2 to 6%.

[0020] Preferably, the perfluoroalkane in the third component comprises 1-(difluoromethoxy)-1,2,2-trifluoroethane, 2-fluoromethoxy-1,1,1,2-tetrafluoroethane, 2-methoxy-1,1,1,2-tetrafluoroethane, 1-methoxy-1,1,2,3-tetrafluoroethane, 1-difluoromethoxy-2,2-difluoroethane, 2-methoxy-1,1,2-trifluoroethane, 1,1-difluoro-2-methoxyethane, 1,1,1,3,3,3-hexa-2-(fluoromethoxy)propane, 1,1,2-trifluoro-1-methoxy-2-(trifluoromethoxy)propane, One or more of 1,1,1,2,3,3-hexafluoro-3-methoxypropane, 1,1,1,3,3,3-hexafluoro-2-methoxypropane, 1,1,2,2,3,3-hexafluoro-3-methoxypropane, 1-ethoxy-1,1,1,2-tetrafluoroethane, 2-ethoxy-1,1,2,2-tetrafluoroethane, 1,1,1-trifluoro-2-ethoxyethane, 1,1,1-trifluoro-3-methoxypropane, 1,1,1-trifluoro-2-methoxypropane, and 1-ethoxy-1,2,2-trifluoroethane.

[0021] More preferably, the perfluoroalkane in the third component is one or more of 1-(difluoromethoxy)-1,2,2-trifluoroethane, 2-fluoromethoxy-1,1,1,2-tetrafluoroethane, 2-methoxy-1,1,1,2-tetrafluoroethane, 1-methoxy-1,1,2,3-tetrafluoroethane, 1-difluoromethoxy-2,2-difluoroethane, 2-methoxy-1,1,2-trifluoroethane, 1,1-difluoro-2-methoxyethane, 1,1,1,3,3,3-hexa-2-(fluoromethoxy)propane, 1,1,2-trifluoro-1-methoxy-2(trifluoromethoxy)ethane, and 1,1,1,2,3,3-hexafluoro-3-methoxypropane.

[0022] The working environment temperature of the fluorinated liquid composition is between 20 and 200°C.

[0023] Preferably, the operating temperature is between 50 and 150°C.

[0024] The fluorinated liquid composition of the present invention can be prepared by conventional methods, wherein the fluorinated liquid components are mixed in liquid form according to the mass percentage of the corresponding components and stirred to obtain the fluorinated liquid composition.

[0025] In a specific embodiment, the fluorinated liquid components are mixed in liquid form according to corresponding mass percentages at room temperature and pressure, and stirred evenly to obtain a uniform and stable composition.

[0026] The fluorinated liquid composition of the present invention can be used in cooling circulating media, and is particularly suitable for use in cooling circulating media for artificial intelligence data center processors or new energy vehicle chip systems.

[0027] The fluorinated liquid composition obtained by the present invention has excellent performance, and has the advantages of insulation properties, non-flammability, low dielectric constant and good stability, which solves the problems of poor dielectric properties and high production costs of fluorinated coolants on the current market. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. The following examples are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0029] The fluorinated liquid composition of the present invention is prepared using a dissolution method commonly used in the art. First, the fluorinated liquids are weighed by weight using a balance, with no specific weighing order required. The components are then stirred at room temperature to uniformly mix, thereby obtaining the target sample.

[0030] Unless otherwise stated, above and below, percentages are by mass and all temperatures are given in degrees Celsius.

[0031] Example 1:

[0032] According to the corresponding proportions of the fluorinated liquid components in Table 1, the components were mixed in liquid form at room temperature and pressure, and stirred evenly to obtain a uniform and stable fluorinated liquid composition. The performance parameters of the fluorinated liquid composition are shown in Table 2.

[0033] Table 1 Proportions of the fluorinated liquid composition of Example 1

[0034]

[0035] Table 2 Performance parameters of the fluorinated liquid composition of Example 1

[0036]

[0037]

[0038] Example 2:

[0039] According to the corresponding proportions of the fluorinated liquid components in Table 3, the components were mixed in liquid form at room temperature and pressure, and stirred evenly to obtain a uniform and stable fluorinated liquid composition. The performance parameters of the fluorinated liquid composition are shown in Table 4.

[0040] Table 3 Proportions of the fluorinated liquid composition of Example 2

[0041]

[0042] Table 4 Performance parameters of the fluorinated liquid composition of Example 2

[0043]

[0044]

[0045] Example 3:

[0046] According to the corresponding proportions of the fluorinated liquid components in Table 5, the components were mixed in liquid form at room temperature and pressure, and stirred evenly to obtain a uniform and stable fluorinated liquid composition. The performance parameters of the fluorinated liquid composition are shown in Table 6.

[0047] Table 5 Proportions and performance parameters of the fluorinated liquid composition of Example 3

[0048]

[0049] Table 6 Proportions and performance parameters of the fluorinated liquid composition of Example 3

[0050]

[0051] In summary, the fluorinated liquid composition obtained by the embodiments of the present invention has excellent performance, and has the advantages of insulation properties, non-flammability, low dielectric constant, and good stability, which solves the problems of poor dielectric properties and high production costs of fluorinated coolants currently on the market.

[0052] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A fluorinated liquid composition, characterized in that Contains the following components: (1) The first component comprises hexafluoropropylene dimer and / or hexafluoropropylene trimer; (2) The second component comprises a perfluoroether or a perfluoropolyether.

2. The fluorinated liquid composition according to claim 1, characterized in that (1) The mass fraction of the first component is 10% to 50%; (2) The mass fraction of the second component is 50% to 90%.

3. The fluorinated liquid composition according to claim 2, characterized in that (1) The mass fraction of the first component is 20% to 40%; (2) The mass fraction of the second component is 60% to 80%.

4. The fluorinated liquid composition according to claim 2 or 3, characterized in that: The carbon number of the perfluoroether or perfluoropolyether in the second component is 4 to 18.

5. The fluorinated liquid composition according to claim 1, characterized in that The perfluoroether in the second component includes one or more of perfluorobutyl methyl ether, 1,1,1,2,2,3,3,4,4,5,5,6,6-tridecafluorooctane, 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether, 1,1,1,2,2,3,3-heptafluoro-3-methoxypropane, 1,1,1,2,3,4,4,5,5,5-decafluoro-3-methoxy-2-trifluoromethylpentane, 3-methoxy-2-trifluoromethylperfluorobutane, 1,1,1,2,3,4,4,5,5,5-decafluoro-3-methoxy-2-trifluoromethylpentane, perfluoropropyl methyl ether, perfluoro-2-oxahexyl methyl ether, and perfluoro-3-oxabutyl methyl ether.

6. The fluorinated liquid composition according to claim 1, characterized in that The perfluoropolyether in the second component comprises polyperfluoromethyl isopropyl ether.

7. The fluorinated liquid composition according to claim 1, characterized in that The fluorinated liquid composition further comprises (3) a third component, wherein the third component comprises other perfluoroalkanes except hexafluoropropylene dimer or hexafluoropropylene trimer, with a mass fraction of 0 to 10%, The sum of the mass fractions of (1) to (3) is 100%.

8. The fluorinated liquid composition according to claim 5, characterized in that The perfluoroalkanes in the third component include 1-(difluoromethoxy)-1,2,2-trifluoroethane, 2-fluoromethoxy-1,1,1,2-tetrafluoroethane, 2-methoxy-1,1,1,2-tetrafluoroethane, 1-methoxy-1,1,2,3-tetrafluoroethane, 1-difluoromethoxy-2,2-difluoroethane, 2-methoxy-1,1,2-trifluoroethane, 1,1-difluoro-2-methoxyethane, 1,1,1,3,3,3-hexa-2-(fluoromethoxy)propane, 1,1,2-trifluoro-1-methoxy-2-(trifluoromethoxy)propane, )ethane, 1,1,1,2,3,3-hexafluoro-3-methoxypropane, 1,1,1,3,3,3-hexafluoro-2-methoxypropane, 1,1,2,2,3,3-hexafluoro-3-methoxypropane, 1-ethoxy-1,1,1,2-tetrafluoroethane, 2-ethoxy-1,1,2,2-tetrafluoroethane, 1,1,1-trifluoro-2-ethoxyethane, 1,1,1-trifluoro-3-methoxypropane, 1,1,1-trifluoro-2-methoxypropane, 1-ethoxy-1,2,2-trifluoroethane.

9. The method for preparing the fluorinated liquid composition according to any one of claims 1 to 8, wherein: The fluorinated liquid components are mixed in liquid form according to the mass percentage of the corresponding components, and stirred evenly to obtain the fluorinated liquid composition.

10. Use of the fluorinated liquid composition according to any one of claims 1 to 8 as a cooling medium.

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