CN112940691B - Immersion type cooling fluid and preparation method thereof - Google Patents

Immersion type cooling fluid and preparation method thereof Download PDF

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CN112940691B
CN112940691B CN202110092501.7A CN202110092501A CN112940691B CN 112940691 B CN112940691 B CN 112940691B CN 202110092501 A CN202110092501 A CN 202110092501A CN 112940691 B CN112940691 B CN 112940691B
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dichloroethylene
trans
isopropanol
cooling fluid
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CN112940691A (en
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程亮
于军
张�杰
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Grtf Lubechemy International Ltd
Guangdong University of Petrochemical Technology
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Grtf Lubechemy International Ltd
Guangdong University of Petrochemical Technology
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    • 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
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    • C09K5/10—Liquid materials

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Abstract

The invention discloses an immersion type cooling fluid and a preparation method thereof, wherein the cooling fluid comprises the following raw materials in parts by weight: 10-20 parts of perfluoropropyl methyl ether, 1-5 parts of trans-1, 2-dichloroethylene, 1-5 parts of isopropanol and 70-88 parts of terminated polyether. The preparation method comprises the following steps: the method comprises the following steps: A. weighing the following raw materials in parts by weight: 10-20 parts of perfluoropropyl methyl ether, 1-5 parts of trans-1, 2-dichloroethylene, 1-5 parts of isopropanol and 70-88 parts of terminated polyether; B. adding perfluoropropyl methyl ether, trans-1, 2-dichloroethylene and isopropanol into a reaction kettle at the temperature of 20-60 ℃ under the condition of nitrogen, and stirring for 10-30 minutes to form a solution 1; C. adding the end-capped polyether into the solution 1 at 50-70 ℃ under the nitrogen condition, stirring for 30-60 minutes, and filtering to obtain the product. The cooling fluid is clear and transparent, has high dielectric strength, is incombustible and has large heat conductivity coefficient; the preparation process is simple and safe, and has industrial application value.

Description

Immersion type cooling fluid and preparation method thereof
Technical Field
The invention belongs to the technical field of cooling, relates to a cooling fluid and a preparation method thereof, and particularly relates to an immersion type cooling fluid and a preparation method thereof.
Background
With the development of new energy technologies, various electronic devices are widely used, such as supercomputers, radars, 5G base stations, and the like. Heat dissipation is a prominent factor in the design and application of these devices, and how to effectively reduce the operating temperature of the devices and keep the devices operating efficiently, stably and for a long period of time is the biggest challenge. The main solution is to use traditional cooling fluid (coolant/cold water) in combination with the design of the cooling system (device). CN201720033007.2 has designed a full soaking formula cooling device, and the device can guarantee the steady, the high-efficient operation of server, solves the server and appears local high temperature, fault-tolerant high grade problem. CN201920990088.4 discloses a 5G communication edge base station liquid cooling heat dissipation system for community, this system can improve the radiating efficiency, reduce energy consumption, noise reduction. CN201910522853.4 discloses an immersion cooling system for data centers, which uses a conventional cooling fluid to design a completely new cooling circuit. CN201911113177.1 discloses a precision cooling and fluid management optimization solution for immersion cooling, which is proposed to replace the traditional air cooling solution — immersion cooling.
With the development of immersion cooling systems, the related liquid-cooled products are receiving increasing attention. For example, the cooling liquid product manufactured by 3M company: the electronic cooling liquid of 3M series Novec 7000 and Novec7100 basically meets the cooling requirement of large-scale equipment, but provides higher requirements for cooling efficiency, insulating property, cleaning property and long service life of immersion type cooling fluid aiming at improving the refinement degree and the operation efficiency of the existing data center equipment.
Disclosure of Invention
The invention aims to solve the technical problem of providing an immersion cooling fluid which is clear and transparent, high in dielectric strength, non-flammable and high in heat conductivity coefficient and a preparation method thereof aiming at the defects of the prior art.
The invention further solves the technical problems that: the preparation method is simple and safe in preparation process and has industrial application value.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an immersion cooling fluid comprises the following raw materials in parts by weight:
10-20 parts of perfluoropropyl methyl ether, 1-5 parts of trans-1, 2-dichloroethylene, 1-5 parts of isopropanol and 70-88 parts of terminated polyether.
Further, in the immersion cooling fluid, the structure of the terminated polyether is preferably:
Figure BDA0002913218080000021
wherein m is 0 to 10, n is 0 to 5, m and n are not zero at the same time, and R is1Is hydrogen or C1～C4An alkane of (a); r2Is hydrogen or methyl, R3Is C2～C5Of alkane, R4Is composed of
Figure BDA0002913218080000022
Wherein r is hydrogen, C1-C6Alkyl or C1-C6A cycloalkyl group of (a).
Further, in the immersion cooling fluid, it is preferable that the cycloalkyl group is selected to be C3-C6A cycloalkyl group of (a).
Further, in the immersion cooling fluid, the purity of the perfluoropropyl methyl ether is preferably more than 99%.
Further, in the immersion cooling fluid, the purity of the trans-1, 2-dichloroethylene is preferably more than 99.5%.
Further, in the immersion cooling fluid, it is preferable that the purity of the isopropyl alcohol should be > 99%.
A method of preparing an immersion cooling fluid comprising the steps of:
A. weighing the following raw materials in parts by weight: 10-20 parts of perfluoropropyl methyl ether, 1-5 parts of trans-1, 2-dichloroethylene, 1-5 parts of isopropanol and 70-88 parts of terminated polyether;
B. adding perfluoropropyl methyl ether, trans-1, 2-dichloroethylene and isopropanol into a reaction kettle at the temperature of 20-60 ℃ under the condition of nitrogen, and stirring for 10-30 minutes to form a solution 1;
C. adding the end-capped polyether into the solution 1 at 50-70 ℃ under the nitrogen condition, stirring for 30-60 minutes, and filtering to obtain the product.
Further, in the preparation method of the immersion cooling fluid, the structure of the end-capped polyether is preferably:
Figure BDA0002913218080000031
wherein m is 0 to 10, n is 0 to 5, m and n are not zero at the same time, and R is1Is hydrogen or C1～C4An alkane of (a); r2Is hydrogen or methyl, R3Is C2～C5Of alkane, R4Is composed of
Figure BDA0002913218080000032
Wherein r is hydrogen, C1-C6Alkyl or C1-C6A cycloalkyl group of (a).
Further, in the preparation method of the immersion cooling fluid, the purity of the perfluoropropyl methyl ether is preferably more than 99%; the purity of the trans-1, 2-dichloroethylene is more than 99.5 percent; the isopropanol should be > 99% pure.
The invention relates to a novel immersion cooling fluid which is composed of perfluoropropyl methyl ether, trans-1, 2-dichloroethylene, isopropanol and terminated polyether. The product has the characteristics of clarity, transparency, high dielectric strength, incombustibility and high heat conductivity coefficient, and is a good immersion cooling fluid.
The preparation method is simple and safe in preparation process and has industrial application value.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, specific embodiments of the present invention will now be described in detail.
An immersion cooling fluid comprises the following raw materials in parts by weight:
10-20 parts of perfluoropropyl methyl ether, 1-5 parts of trans-1, 2-dichloroethylene, 1-5 parts of isopropanol and 70-88 parts of terminated polyether.
Further, in the immersion cooling fluid, the structure of the terminated polyether is preferably:
Figure BDA0002913218080000041
wherein m is 0 to 10, n is 0 to 5, m and n are not zero at the same time, and R is1Is hydrogen or C1～C4An alkane of (a); r2Is hydrogen or methyl, R3Is C2～C5Of alkane, R4Is composed of
Figure BDA0002913218080000042
Wherein r is hydrogen, C1-C6Alkyl or C1-C6A cycloalkyl group of (a).
Further, in the immersion cooling fluid, it is preferable that the cycloalkyl group is selected to be C3-C6A cycloalkyl group of (a).
Further, in the immersion cooling fluid, the purity of the perfluoropropyl methyl ether is preferably more than 99%.
Further, in the immersion cooling fluid, the purity of the trans-1, 2-dichloroethylene is preferably more than 99.5%.
Further, in the immersion cooling fluid, it is preferable that the purity of the isopropyl alcohol should be > 99%.
A method of preparing an immersion cooling fluid comprising the steps of:
A. weighing the following raw materials in parts by weight: 10-20 parts of perfluoropropyl methyl ether, 1-5 parts of trans-1, 2-dichloroethylene, 1-5 parts of isopropanol and 70-88 parts of terminated polyether; preferably, the structure of the end-capped polyether is as follows:
Figure BDA0002913218080000051
wherein m is 0 to 10, n is 0 to 5, m and n are not zero at the same time, and R is1Is hydrogen or C1～C4An alkane of (a); r2Is hydrogen or methyl, R3Is C2～C5Of alkane, R4Is composed of
Figure BDA0002913218080000052
Wherein r is hydrogen, C1-C6Alkyl or C1-C6A cycloalkyl group of (a).
Preferably the perfluoropropyl methyl ether has a purity of > 99%; the purity of the trans-1, 2-dichloroethylene is more than 99.5 percent; the isopropanol should be > 99% pure.
B. Adding perfluoropropyl methyl ether, trans-1, 2-dichloroethylene and isopropanol into a reaction kettle at the temperature of 20-60 ℃ under the condition of nitrogen, and stirring for 10-30 minutes to form a solution 1;
C. adding the end-capped polyether into the solution 1 at 50-70 ℃ under the nitrogen condition, stirring for 30-60 minutes, and filtering to obtain the product.
The following is described in detail by way of specific examples:
example 1, an immersion cooling fluid comprising the following raw materials in parts by weight (grams are used in this example): perfluoropropyl methyl ether 10, trans-1, 2-dichloroethylene 2.5, isopropanol 3 and terminated polyether 84.5. Wherein the structure of the end-capped polyether is as follows:
Figure BDA0002913218080000053
the preparation method of the immersion cooling fluid comprises the following steps:
A. weighing the following raw materials: 10 g of total perfluoropropyl methyl ether, 2.5 g of trans-1, 2-dichloroethylene, 3 g of isopropanol and 84.5 g of terminated polyether; wherein the purity of the perfluoropropyl methyl ether is more than 99 percent; the purity of the trans-1, 2-dichloroethylene is more than 99.5 percent; the isopropanol should be > 99% pure.
B. At the temperature of 20 ℃, under the condition of nitrogen, 10 g of perfluoropropyl methyl ether, 2.5 g of trans-1, 2-dichloroethylene and 3 g of isopropanol are added into a reaction kettle and stirred for 10 minutes to form a solution 1;
C. 84.5 g of the capped polyether was added to solution 1 at 50 ℃ under nitrogen, stirred for 60 minutes and filtered to give the product of example 1.
Example 2, an immersion cooling fluid, comprising the following raw materials in parts by weight (in grams in this example): perfluoropropyl methyl ether 20, trans-1, 2-dichloroethylene 5, isopropanol 5 and terminated polyether 70. Wherein the structure of the end-capped polyether is as follows:
Figure BDA0002913218080000061
the preparation method of the immersion cooling fluid comprises the following steps:
A. weighing the following raw materials: 20 g of total perfluoropropyl methyl ether, 5g of trans-1, 2-dichloroethylene, 5g of isopropanol and 70 g of terminated polyether; wherein the purity of the perfluoropropyl methyl ether is more than 99 percent; the purity of the trans-1, 2-dichloroethylene is more than 99.5 percent; the isopropanol should be > 99% pure.
B. Under the condition of 60 ℃ and nitrogen, adding 20 g of perfluoropropyl methyl ether, 5g of trans-1, 2-dichloroethylene and 5g of isopropanol into a reaction kettle, and stirring for 30 minutes to form a solution 1;
C. 70 g of the capped polyether was added to solution 1 at 70 ℃ under nitrogen, stirred for 30 minutes and filtered to give the product of example 2.
Example 3, an immersion cooling fluid, comprising the following raw materials in parts by weight (grams are used in this example): perfluoropropyl methyl ether 15.5, trans-1, 2-dichloroethylene 1.0, isopropanol 2.4 and terminated polyether 80.9. Wherein the structure of the end-capped polyether is as follows:
Figure BDA0002913218080000071
the preparation method of the immersion cooling fluid comprises the following steps:
A. weighing the following raw materials: 15.5 g of total perfluoropropyl methyl ether, 1.0 g of trans-1, 2-dichloroethylene, 2.4 g of isopropanol and 80.9 g of terminated polyether; wherein the purity of the perfluoropropyl methyl ether is more than 99 percent; the purity of the trans-1, 2-dichloroethylene is more than 99.5 percent; the isopropanol should be > 99% pure.
B. Adding 15.5 g of perfluoropropyl methyl ether, 1.0 g of trans-1, 2-dichloroethylene and 2.4 g of isopropanol into a reaction kettle at 40 ℃ under the condition of nitrogen, and stirring for 20 minutes to form a solution 1;
C. 80.9 g of the capped polyether was added to solution 1 at 60 ℃ under nitrogen, stirred for 40 minutes and filtered to give the product of example 3.
Example 4, an immersion cooling fluid, comprising the following raw materials in parts by weight (grams are used in this example): perfluoropropyl methyl ether 12, trans-1, 2-dichloroethylene 3.4, isopropanol 1.0 and terminated polyether 83. Wherein the structure of the end-capped polyether is as follows:
Figure BDA0002913218080000081
the preparation method of the immersion cooling fluid comprises the following steps:
A. weighing the following raw materials: 12 g of total perfluoropropyl methyl ether, 3.4 g of trans-1, 2-dichloroethylene, 1.0 g of isopropanol and 83 g of terminated polyether; wherein the purity of the perfluoropropyl methyl ether is more than 99 percent; the purity of the trans-1, 2-dichloroethylene is more than 99.5 percent; the isopropanol should be > 99% pure.
B. Under the condition of 30 ℃ and nitrogen, adding 12 g of perfluoropropyl methyl ether, 3.4 g of trans-1, 2-dichloroethylene and 1.0 g of isopropanol into a reaction kettle, and stirring for 10 minutes to form a solution 1;
C. the capped polyether 83 g was added to solution 1 at 60 deg.C under nitrogen, stirred for 40 minutes and filtered to give the product of example 4.
Example 5, an immersion cooling fluid, comprising the following raw materials in parts by weight (grams are used in this example): perfluoropropyl methyl ether 19, trans-1, 2-dichloroethylene 3, isopropanol 5 and terminated polyether 73. Wherein the structure of the end-capped polyether is as follows:
Figure BDA0002913218080000082
the preparation method of the immersion cooling fluid comprises the following steps:
A. weighing the following raw materials: 19 g of total perfluoropropyl methyl ether, 3 g of trans-1, 2-dichloroethylene, 5g of isopropanol and 73 g of terminated polyether; wherein the purity of the perfluoropropyl methyl ether is more than 99 percent; the purity of the trans-1, 2-dichloroethylene is more than 99.5 percent; the isopropanol should be > 99% pure.
B. Adding 19 g of perfluoropropyl methyl ether, 3 g of trans-1, 2-dichloroethylene and 5g of isopropanol into a reaction kettle at the temperature of 30 ℃ under the condition of nitrogen, and stirring for 10 minutes to form a solution 1;
C. 73 g of capped polyether was added to solution 1 at 50 ℃ under nitrogen, stirred for 35 minutes and filtered to give the product of example 5.
Example 6, an immersion cooling fluid, comprising the following raw materials in parts by weight (grams are used in this example):
perfluoropropyl methyl ether 17.3 grams, trans-1, 2-dichloroethylene 1.3 grams, isopropanol 3.5 grams, and capped polyether 87.9 grams. Wherein, the structure of the end-capping polyether is as follows:
Figure BDA0002913218080000091
the preparation method is the same as the step of the example 1, and the product of the example 6 is obtained.
Example 7, an immersion cooling fluid, comprising the following raw materials in parts by weight (grams are used in this example): 11.6 g of perfluoropropyl methyl ether, 4.7 g of trans-1, 2-dichloroethylene, 5g of isopropanol and 78.7 g of terminated polyether; wherein, the structure of the end-capping polyether is as follows:
Figure BDA0002913218080000092
the procedure is as in example 2 to give the product of example 7.
Example 8, an immersion cooling fluid, comprising the following raw materials in parts by weight (grams are used in this example): perfluoropropyl methyl ether 15.5 g, trans-1, 2-dichloroethylene 1.6 g, isopropanol 3.2 g and terminated polyether 79.7 g, wherein the terminated polyether has the structure:
Figure BDA0002913218080000101
the preparation method is the same as the step of the example 1 to obtain the product of the example 8.
Example 9, an immersion cooling fluid, comprising the following raw materials in parts by weight (grams are used in this example): 20 g of perfluoropropyl methyl ether, 1.2 g of trans-1, 2-dichloroethylene, 3 g of isopropanol and 75.8 g of terminated polyether, wherein the structure of the terminated polyether is as follows:
Figure BDA0002913218080000102
the procedure is as in example 4 to give the product of example 9.
Example 10, an immersion cooling fluid, comprising the following raw materials in parts by weight (grams are used in this example): 10 g of perfluoropropyl methyl ether, 2.7 g of trans-1, 2-dichloroethylene, 4.2 g of isopropanol and 83.1 g of terminated polyether, wherein the structure of the terminated polyether is as follows:
Figure BDA0002913218080000103
the procedure is as in example 3 to give the product of example 10.
The implementation effect is as follows:
the control sample was selected from 3M company on the marketTMNovecTM7000, 7100 products
Corrosion test (using test method: ASTM D1384, unit: mg)
Figure BDA0002913218080000111
As can be seen from the above table: through performance tests, compared with 3M market products, the products disclosed by the embodiments 1-10 of the invention have lower viscosity and expansion coefficient, and can ensure the fluidity of fluid, reduce viscosity and increase the heat dissipation effect. The dielectric constant and the volume resistivity are higher, the safety of instrument equipment can be ensured, and the service life is prolonged.

Claims (2)

1. The immersion cooling fluid is characterized by comprising the following raw materials in parts by weight:
10-20 parts of perfluoropropyl methyl ether, 1-5 parts of trans-1, 2-dichloroethylene, 1-5 parts of isopropanol and 70-88 parts of terminated polyether; the structure of the end-capped polyether is as follows:
Figure DEST_PATH_IMAGE001
，
wherein m = 0-10, n = 0-5, m and n are not zero at the same time, R1Is hydrogen or C1~C4An alkane of (a); r2Is hydrogen or methyl, R3Is C2～C5Of alkane, R4Is composed of
Figure 133251DEST_PATH_IMAGE002
Wherein r is hydrogen, C1-C6Alkyl groups of (a); or R4Is composed of
Figure DEST_PATH_IMAGE003
、
Figure 909446DEST_PATH_IMAGE004
Or
Figure DEST_PATH_IMAGE005
；
The purity of the perfluoropropyl methyl ether is more than 99 percent; the purity of the trans-1, 2-dichloroethylene is more than 99.5 percent; the purity of the isopropanol is more than 99 percent.
2. A method of preparing an immersion cooling fluid, comprising the steps of:
A. weighing the following raw materials in parts by weight: 10-20 parts of perfluoropropyl methyl ether, 1-5 parts of trans-1, 2-dichloroethylene, 1-5 parts of isopropanol and 70-88 parts of terminated polyether;
B. adding perfluoropropyl methyl ether, trans-1, 2-dichloroethylene and isopropanol into a reaction kettle at 20-60 ℃ under the condition of nitrogen, and stirring for 10-30 minutes to form a solution 1;
C. adding the end-capped polyether into the solution 1 at 50-70 ℃ under the nitrogen condition, stirring for 30-60 minutes, and filtering to obtain a product;
wherein the structure of the end-capped polyether is as follows:
Figure 158025DEST_PATH_IMAGE001
，
wherein m = 0-10, n = 0-5, m and n are not zero at the same time, R1Is hydrogen or C1~C4An alkane of (a); r2Is hydrogen or methyl, R3Is C2～C5Of alkane, R4Is composed of
Figure 710491DEST_PATH_IMAGE002
Wherein r is hydrogen, C1-C6Alkyl groups of (a); or R4Is composed of
Figure 196968DEST_PATH_IMAGE003
、
Figure 550588DEST_PATH_IMAGE006
Or
Figure 738993DEST_PATH_IMAGE005
；
The purity of the perfluoropropyl methyl ether is more than 99 percent; the purity of the trans-1, 2-dichloroethylene is more than 99.5 percent; the isopropanol purity was > 99%.
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