TWI742654B - Immersion dielectric fluid - Google Patents

Abstract

An immersion type dielectric fluid, comprising: 38-65 parts by weight of perfluorinated organic compound; 14-35 parts by weight of fluoropolymer; 7-31 parts by weight of fluorine-containing ether; and 0.5-3.5 parts by weight Perfluorosiloxane. The invention provides an insulating, high-efficiency, environmentally-friendly, safe, and non-conductive working liquid, which can be used as a cooling liquid for transferring heat. The dielectric fluid of the present invention can be used as a working fluid for antifreeze and auxiliary heat dissipation and heat transfer.

Description

Immersion type dielectric fluid

This application relates to an immersion dielectric fluid, specifically, to an immersion dielectric fluid containing a fluorine organic compound, a fluorine-containing polymer, a fluorine-containing ether, and a perfluorosiloxane.

With the development of the digital economy, today’s society has promoted the breakthrough and integration of digital technologies such as big data, cloud computing, artificial intelligence, the Internet of Things, and blockchain. The equipment puts forward higher requirements, and the hardware equipment to process a large amount of data will emit a lot of heat. How to cool the hardware equipment efficiently, environmentally and safely is a problem that related industries need to solve today.

The current cooling methods are as follows: First, the traditional air cooling method uses air to take away the heat. The heat conductivity is only 4% of the immersed dielectric fluid, and the noise is higher than that of the immersed dielectric fluid. Electro-hydraulic increases by 13±2dBA, and power consumption increases by 28%. Second, indirect cooling coolant. The main components of this coolant are ultrapure water and propylene glycol. The advantages of this coolant are low price and environmental protection, but it also has fatal disadvantages. If a leak occurs, it will cause damage to the hardware equipment. Fatal damage, followed by the limitation of service life. Third, mineral oil cooling. This cooling method is mostly used in some mechanical equipment. Its advantages are low price, insulation, and non-flammability, but it also has disadvantages. It is easy to decompose and have high viscosity after a long time of use, and it is difficult to clean the equipment. Under special circumstances There is also a risk of burning.

In view of the above-mentioned problems in the cooling method of the prior art, the present invention provides an immersion dielectric fluid, which can be used as a working fluid for antifreeze and auxiliary heat dissipation and heat transfer.

In order to achieve the above and other objectives, the present invention provides an immersion dielectric fluid, comprising: 38-65 parts by weight of perfluorinated organic compound; 14-35 parts by weight of fluoropolymer; 7-31 parts by weight Fluorine-containing ether; and 0.5-3.5 parts by weight of perfluorosiloxane.

In one embodiment of the present invention, the above-mentioned perfluoroorganic compound is selected from perfluorooctane (Octadecafluorooctane; Perfluorooctane; octadecafluorooctane), perfluorotriethylamine (Perfluorotriethylamine), perfluorobutyltetrahydrofuran (perfluoro-2- butyltetrahydrofuran) and perfluorohexane-1-sulphonic acid (perfluorohexane-1-sulphonic acid).

In one embodiment of the present invention, the aforementioned fluoropolymer is selected from the group consisting of hexafluoropropene dimer and hexafluoropropene trimer.

In one embodiment of the present invention, the above-mentioned fluorine-containing ether is selected from Butane, 1,1,1,2,2,3,3,4,4-nonafluoro-4-methoxy -), 1,1,2,2-Tetrafluoroethyl-2,2,2-trifluoroethyl ether (1,1,2,2-Tetrafluoroethyl-2,2,2-trifluoroethyl ether), 1, 1,2,2-Tetrafluoroethyl- 2,2,3,3-tetrafluoropropyl ether (1,1,2,2-Tetrafluoroethyl-2,2,3,3-tetrafluoropropylether) and 1,1,2,2-tetrafluoroethyl ether (ethyl 1,1,2,2-tetrafluoroethyl ether).

In an embodiment of the present invention, the above-mentioned perfluorosiloxane is selected from the group consisting of ((Heptadecafluoro-1,1,2,2-tetradecyl)trimethoxysilane), tridecafluorooctane Triethoxy-1H, 1H, 2H, 2H-tridecafluoro-n-octylsilane, Heptafluorodecyltrimethoxysilane (1H, 1H, 2H, 2H-Perfluorodecyltrimethoxysilane), 3,3,3 -Trifluoropropylmethyldimethoxysilane (3,3,3-Trifluoropropylmethyldimethoxysilane) and 1H,1H,2H,2H-perfluorooctyl trichlorosilane (1H,1H,2H,2H-perfluorooctyl trichlorosilane) Formed group.

In one embodiment of the present invention, the immersion dielectric fluid of the present invention is composed of the following components: 40-50 parts by weight of perfluorinated organic compounds; 20-30 parts by weight of fluoropolymers; 10-19.5 Parts by weight of fluorine-containing ether; and 0.1-0.5 parts by weight of perfluorosiloxane.

The immersion type dielectric fluid of the present invention optimizes the distribution ratio of various organic fluorine compounds, and then introduces perfluorosiloxane (which can improve the insulation performance), so that it can be used in the cooling of IT hardware equipment. When time (for example, the electronic device that generates heat can be immersed in the immersion dielectric fluid of the present invention), the advantages of efficient heat dissipation, environmental protection, energy saving, corrosiveness, insulation, and non-combustibility can be achieved.

Example 1

The immersed dielectric fluid of Example 1 is composed of the following components: 53 parts by weight of perfluorooctane (Octadecafluorooctane; Perfluorooctane; octadecafluorooctane); 29 parts by weight of hexafluoropropene trimer; 16.8 parts by weight Parts of 1,1,2,2-tetrafluoroethyl ether (ethyl 1,1,2,2-tetrafluoroethyl ether); and 1.2 parts by weight of heptafluorodecyl triethoxysilane ((Heptadecafluoro-1, 1,2,2-tetradecyl)trimethoxysilane).

Example 2

The immersion dielectric fluid of Example 2 is composed of the following components: 54 parts by weight of Perfluorotriethylamine; 13 parts by weight of hexafluoropropene dimer; 21.5 parts by weight of hexafluoro Hexafluoropropene trimer; 1.5 parts by weight of (Heptadecafluoro-1,1,2,2-tetradecyl) trimethoxysilane; and 10 parts by weight of methyl nonafluorobutane Ether (Butane,1,1,1,2,2,3,3,4,4-nonafluoro-4-methoxy-).

Example 3

The immersion dielectric fluid of Example 3 is composed of the following components: 48 parts by weight of perfluoro-2-butyltetrahydrofuran; 21 parts by weight of hexafluoropropene trimer; 18 parts by weight of methyl nonafluorobutyl ether (Butane, 1, 1, 1 ,2,2,3,3,4,4-nonafluoro-4-methoxy-); 12 parts by weight of hexafluoropropene dimer (hexafluoropropene dimer); and 1 part by weight of heptafluorodecyl trimethoxysilane (1H, 1H, 2H, 2H-Perfluorodecyltrimethoxysilane).

Example 4

The immersion dielectric fluid of Example 4 is composed of the following components: 45 parts by weight of perfluoro-2-butyltetrahydrofuran; 21 parts by weight of hexafluoropropene trimer; 19 parts by weight Parts of 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether (1,1,2,2-Tetrafluoroethyl 2,2,2-trifluoroethyl ether); 14 parts by weight Hexafluoropropene dimer; and 1 part by weight of heptafluorodecyltrimethoxysilane (1H, 1H, 2H, 2H-Perfluorodecyltrimethoxysilane).

Example 5

The immersion dielectric fluid of Example 5 is composed of the following components: 8 parts by weight of perfluorohexane-1-sulphonic acid; 38 parts by weight of perfluoro-2-butyltetrahydrofuran (perfluoro-2-butyltetrahydrofuran) ; 18.5 parts by weight of hexafluoropropene trimer (hexafluoropropene trimer); 19 parts by weight of 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether (1,1,2,2-Tetrafluoroethyl 2,2,2-trifluoroethyl ether); 15 parts by weight Parts of hexafluoropropene dimer; and 1.5 parts by weight of heptafluorodecyltrimethoxysilane (1H, 1H, 2H, 2H-Perfluorodecyltrimethoxysilane).

Example 6

The immersed dielectric fluid of Example 6 is composed of the following components: 30 parts by weight of perfluorotriethylamine; 35 parts by weight of perfluoro-2-butyltetrahydrofuran; 20 parts by weight Hexafluoropropene trimer (hexafluoropropene trimer); 1.2 parts by weight of heptadecafluoro-1,1,2,2-tetradecyl trimethoxysilane ((Heptadecafluoro-1,1,2,2-tetradecyl)trimethoxysilane); and 13.8 parts by weight of methyl nine Fluorobutyl ether (Butane,1,1,1,2,2,3,3,4,4-nonafluoro-4-methoxy-).

Example 7

The immersed dielectric fluid of Example 7 is composed of the following components: 53 parts by weight of perfluorooctane (Octadecafluorooctane; Perfluorooctane; octadecafluorooctane); 20 parts by weight of hexafluoropropene trimer; 26 parts by weight Parts of 1,1,2,2-tetrafluoroethyl ether (ethyl 1,1,2,2-tetrafluoroethyl ether); and 1 part by weight of Triethoxy-1H, 1H, 2H, 2H-tridecafluoro-n-octylsilane.

Example 8

The immersed dielectric fluid of Example 8 is composed of the following components: 5 parts by weight of perfluorohexane-1-sulphonic acid; 40 parts by weight of perfluorooctane (Octadecafluorooctane; Perfluorooctane; octadecafluorooctane) ; 15 parts by weight of hexafluoropropene trimer; 15 parts by weight of 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether (1,1,2 ,2-Tetrafluoroethyl 2,2,2-trifluoroethyl ether); 10 parts by weight of methyl nonafluorobutyl ether (Butane,1,1,1,2,2,3,3,4,4-nonafluoro-4-methoxy -); 13 parts by weight of hexafluoropropene dimer; and 2 parts by weight of 1H, 1H, 2H, 2H-perfluorooctyl trichlorosilane (1H, 1H, 2H, 2H-perfluorooctyl trichlorosilane) .

Example 9

The immersed dielectric fluid of Example 9 is composed of the following components: 7 parts by weight of perfluorohexane-1-sulphonic acid; 40 parts by weight of perfluorooctane (Octadecafluorooctane; Perfluorooctane; octadecafluorooctane) ; 21 parts by weight of hexafluoropropene trimer (hexafluoropropene trimer; 16 parts by weight of 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether (1,1,2,2-Tetrafluoroethyl 2,2,2-trifluoroethyl ether); 15 parts by weight Parts of methyl nonafluorobutyl ether (Butane,1,1,1,2,2,3,3,4,4-nonafluoro-4-methoxy-); and 1 part by weight of 3,3,3-trifluoro Propylmethyldimethoxysilane (3,3,3-Trifluoropropylmethyldimethoxysilane).

Example 10

The immersed dielectric fluid of Example 10 is composed of the following components: 5.2 parts by weight of perfluorohexane-1-sulphonic acid; 40 parts by weight of perfluorooctane (Octadecafluorooctane; Perfluorooctane; octadecafluorooctane) ; 15 parts by weight of hexafluoropropene trimer; 10 parts by weight of methyl nonafluorobutyl ether (Butane,1,1,1,2,2,3,3,4,4-nonafluoro-4 -methoxy-); 10 parts by weight of 1,1,2,2-tetrafluoroethyl ether (ethyl 1,1,2,2-tetrafluoroethyl ether); 19 parts by weight of hexafluoropropene dimer ; And 0.8 parts by weight of 3,3,3-trifluoropropylmethyldimethoxysilane (3,3,3-Trifluoropropylmethyldimethoxysilane).

Example 11

The immersion dielectric fluid of Example 11 is composed of the following components: 25 parts by weight of perfluoro-2-butyltetrahydrofuran (perfluoro-2-butyltetrahydrofuran); 25 parts by weight of perfluorooctane (Octadecafluorooctane; Perfluorooctane; octadecafluorooctane); 15 parts by weight of hexafluoropropene trimer; 18.5 parts by weight of 1,1,2,2-tetrafluoroethyl-2 , 2,2-Trifluoroethyl ether (1,1,2,2-Tetrafluoroethyl 2,2,2-trifluoroethyl ether); 15 parts by weight of hexafluoropropene dimer (hexafluoropropene dimer); 0.5 parts by weight of ten Heptafluorodecyl trimethoxysilane (1H, 1H, 2H, 2H-Perfluorodecyltrimethoxysilane); and 1 part by weight of 3,3,3-trifluoropropylmethyldimethoxysilane (3,3,3-Trifluoropropylmethyldimethoxysilane) ).

Example 12

The immersed dielectric fluid of Example 12 is composed of the following components: 51 parts by weight of perfluorooctane (Octadecafluorooctane; Perfluorooctane; octadecafluorooctane) content; 30 parts by weight of hexafluoropropene trimer; 9 Parts by weight of 1,1,2,2-tetrafluoroethyl ether (ethyl 1,1,2,2-tetrafluoroethyl ether); 9 parts by weight of 1,1,2,2-tetrafluoroethyl-2,2 ,3,3-Tetrafluoropropylether (1,1,2,2-Tetrafluoroethyl-2,2,3,3-tetrafluoropropylether); 1 part by weight of heptafluorodecyl triethoxysilane ((Heptadecafluoro- 1,1,2,2-tetradecyl)trimethoxysilane).

Example 13

The immersion dielectric fluid of embodiment 13 is composed of the following components: 54.5 parts by weight of perfluorooctane (Octadecafluorooctane; Perfluorooctane; octadecafluorooctane); 20 parts by weight of hexafluoropropene dimer; 9 parts by weight of 1,1,2,2-tetrafluoroethyl ether ( ethyl 1,1,2,2-tetrafluoroethyl ether); 15 parts by weight of 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl ether (1,1,2, 2-Tetrafluoroethyl-2,2,3,3-tetrafluoropropylether); and 1.5 parts by weight of (Heptadecafluoro-1,1,2,2-tetradecyl)trimethoxysilane.

Example 14

The immersion dielectric fluid of Example 14 is composed of the following components: 50 parts by weight of Perfluorotriethylamine; 10 parts by weight of hexafluoropropene dimer; 16.5 parts by weight of hexafluoro Hexafluoropropene trimer; 1 part by weight of (Heptadecafluoro-1,1,2,2-tetradecyl) trimethoxysilane; 12 parts by weight of methyl nonafluorobutyl ether (Butane,1,1,1,2,2,3,3,4,4-nonafluoro-4-methoxy-); 10 parts by weight of 1,1,2,2-tetrafluoroethyl-2,2, 2-trifluoroethyl ether (1,1,2,2-Tetrafluoroethyl 2,2,2-trifluoroethyl ether); and 0.5 parts by weight of 1H,1H,2H,2H-perfluorooctyltrichlorosilane (1H, 1H, 2H, 2H-perfluorooctyl trichlorosilane).

Example 15

The immersed dielectric fluid of Example 15 is composed of the following components: 30 parts by weight of perfluorotriethylamine; 35 parts by weight of perfluoro-2-butyltetrahydrofuran; 14 parts by weight Hexafluoropropene trimer (hexafluoropropene trimer); 0.5 parts by weight of heptafluorodecyl triethoxysilane ((Heptadecafluoro-1,1,2,2-tetradecyl)trimethoxysilane); 11 parts by weight of 1,1, 2,2-Tetrafluoroethyl-2,2,3,3-tetrafluoropropylether (1,1,2,2-Tetrafluoroethyl-2,2,3,3-tetrafluoropropylether); 9 parts by weight of 1, 1,2,2-tetrafluoroethyl ether (ethyl 1,1,2,2-tetrafluoroethyl ether); and 0.5 parts by weight of 3,3,3-trifluoropropylmethyldimethoxysilane (3, 3,3-Trifluoropropylmethyldimethoxysilane).

Test example: In order to understand the dielectric properties of the immersed dielectric fluid of the embodiment of the present invention, an analysis device (model: PNA-XN5245B (10MHz~30GHz)) was used for example 15 at a temperature of 25~50℃ test.

The test results of the immersion dielectric fluid of Example 15 of the present invention are shown in Tables 1 to 6 as follows:

It can be seen from the test results in Table 1 to Table 6 that the immersion dielectric fluid of the present invention has good dielectric properties at various frequencies between 25°C and 50°C, making it suitable for use in IT hardware equipment. When the temperature is lowered (for example, the electronic device that generates heat can be immersed in the immersion dielectric fluid of the present invention), the advantages of high efficiency heat dissipation, environmental protection, energy saving, corrosiveness, insulation, and non-combustibility can be realized.

The present invention has been disclosed in a preferred embodiment above, but those skilled in the art should understand that the embodiment is only used to describe the present invention and should not be construed as limiting the scope of the present invention. Should be noted It is intended that all changes and substitutions equivalent to this embodiment should be included in the scope of the present invention. Therefore, the protection scope of the present invention should be defined by the scope of the patent application.

Claims (1)

An immersion type dielectric fluid, comprising: 38-65 parts by weight of perfluorinated organic compound; 14-35 parts by weight of hexafluoropropene trimer; 7-31 parts by weight of fluorine-containing ether; and 0.5 -3.5 parts by weight of perfluorosiloxane, wherein the perfluoroorganic compound is selected from the group consisting of perfluorotriethylamine and perfluoro-2-butyltetrahydrofuran, wherein the fluorine-containing Class ether is selected from 1,1,2,2-Tetrafluoroethyl-2,2,3,3-Tetrafluoropropyl ether (1,1,2,2-Tetrafluoroethyl-2,2,3,3- tetrafluoropropylether) and 1,1,2,2-tetrafluoroethyl ether (ethyl 1,1,2,2-tetrafluoroethyl ether), wherein the perfluorosiloxane is selected from heptafluorodecyl Trimethoxysilane ((Heptadecafluoro-1,1,2,2-tetradecyl)trimethoxysilane) and 3,3,3-trifluoropropylmethyldimethoxysilane (3,3,3-Trifluoropropylmethyldimethoxysilane) Of the group.