KR-20260063383-A - Additives for thermal management fluid and thermal management fluid compositions comprising the same

Abstract

As an additive for thermal management fluids, the additive comprises a phosphate-based compound, and a thermal management fluid composition comprising the same is provided.

Inventors

• 이홍원
• 김학묵
• 정강민
• 김정남
• 신상혜
• 이광국
• 이주현

Assignees

• 에스케이이노베이션 주식회사
• 에스케이온 주식회사

Dates

Publication Date

20260507

Application Date

20241030

Claims (14)

1. As an additive for thermal management fluids, Additive for thermal management fluids, comprising a phosphate-based compound.
2. In claim 1, The above phosphate-based compound satisfies the following chemical formula 1, and [Chemical Formula 1] Herein, the above R is an additive for thermal management fluids, wherein R is independently hydrogen or a functional group comprising 1 to 10 carbons.
3. In claim 2, An additive for thermal management fluids, wherein at least one of the above R is a functional group comprising 1 to 10 carbons.
4. In claim 2, The above R is a functional group comprising 1 to 6 carbons independently, an additive for thermal management fluids.
5. In claim 2, The above R is an additive for thermal management fluids that further comprises heteroatoms.
6. In claim 5, The above heteroatom is a halogen atom, an additive for thermal management fluids.
7. In claim 1, The above additive satisfies a △FP of at least 10℃, and An additive for thermal management fluids, wherein △FP = (flash point of the fluid containing the additive) - (flash point of the fluid not containing the additive).
8. As a thermal management fluid composition, Giyu; and A thermal management fluid composition comprising one or more phosphate-based compounds.
9. In claim 8, The above composition is a thermal management fluid composition that can be used for liquid immersion cooling.
10. In claim 8, The above base oil is a mineral oil-based base oil, a thermal management fluid composition.
11. In claim 8, A thermal management fluid composition having a base oil content of at least 80 wt%.
12. In claim 8, A thermal management fluid composition having a content of the above-mentioned phosphate-based compound of greater than 0 wt% and less than or equal to 10 wt%.
13. In claim 8, The above composition is a thermal management fluid composition further comprising additives.
14. In claim 13, The above additive comprises an antioxidant, an antifoamer, a corrosion inhibitor, a detergent, a dispersant, a friction modifier, an anti-wear agent, an extreme pressure additive, a viscosity index improver, a pour point depressant, a viscosity modifier, or a combination thereof, in a thermal management fluid composition.

Description

Additives for thermal management fluid and thermal management fluid compositions comprising the same The present disclosure relates to an additive for a thermal management fluid and a thermal management fluid composition comprising the same. Thermal management fluid is a fluid used to efficiently transfer and control heat, primarily used in cooling and heating systems. Coolants play the role of absorbing heat generated from a heat source to reduce its temperature. It is desirable for a coolant to be a substance that has high thermal efficiency, low viscosity, is inexpensive, non-toxic, chemically stable, and does not cause corrosion of the equipment. As various electronic products, such as electric vehicles, become more high-performance, they generate more heat during use. To ensure smooth operation and prevent premature lifespan reduction, controlling the heat generated by these products is an essential consideration. Immersion cooling is one of the cooling methods used for thermal management of electronic devices and computer systems. Since electronic devices are cooled by coming into direct contact with a fluid, immersion cooling enables more effective heat removal compared to conventional air or water cooling methods. Figure 1 illustrates the structural formula of a phosphate-based compound according to one embodiment. The present disclosure will be described in detail below. However, this is merely illustrative and the present disclosure is not limited to the specific embodiments described illustratively. Additives for thermal management fluids The present disclosure provides an additive for thermal management fluids. The additive comprises a phosphate-based compound. Accordingly, in the present disclosure, "additive for thermal management fluids" may be used interchangeably with "phosphate-based additive" or "phosphate-based compound additive." In the present disclosure, a phosphate-based compound refers to a compound containing phosphate. Specifically, the phosphate-based compound may be an organic phosphate compound. In one embodiment, the additive for thermal management fluids may be a phosphate-based compound. In another embodiment, the additive for thermal management fluids may comprise one or more phosphate-based compounds. The above phosphate-based compound can satisfy the following chemical formula 1. [Chemical Formula 1] Here, the three R groups are independent of each other. The R may be hydrogen or a functional group containing 1 to 10 carbons. Specifically, the R may be hydrogen or a functional group containing 1 to 8 carbons, and more specifically, the R may be hydrogen or a functional group containing 1 to 6 carbons. For a higher flash point, the number of carbons in the R group may be less than 8. According to one embodiment, at least one of the three Rs may not be hydrogen. In other words, at least one of the Rs may be a functional group comprising 1 to 10 carbons. Specifically, at least two of the Rs may be non-hydrogen functional groups. More specifically, all of the Rs may be non-hydrogen functional groups. Of course, even in this case, the three Rs may be independent of each other. Even more specifically, the Rs may be functional groups comprising 1 to 6 carbons independently of each other. From the perspective of improving the performance of a thermal management fluid containing an additive, all of the Rs may not be hydrogen. Specifically, the performance improvement may include improvements in flame retardancy, electrical conductivity, corrosiveness, etc. Additionally, according to one embodiment, the total number of carbon atoms of the compound may be 1 to 30. Specifically, the total number of carbon atoms may be 1 to 24, more specifically 1 or more and less than 24, even more specifically 1 to 21, and even more specifically 1 to 18. In terms of a higher flash point, the total number of carbon atoms may be less than 24. For example, the functional group may be a hydrocarbyl group. For the sake of chemical stability, the functional group may be an alkyl group. The functional group may be linear, branched, or cyclic. Or the functional group may include an aromatic group. According to another embodiment, R may further comprise a heteroatom. For example, R may further comprise O, N, S, P, B, F, Cl, Br, I, or a combination thereof. Specifically, R may further comprise a halogen atom. In this case, R may be an alkyl group substituted with a halogen atom. More specifically, R may further comprise F. Using the above additive in a thermal management fluid can increase the flash point of the fluid. Although we do not wish to be bound by any specific theory, the phosphate-based compounds in the above additive can scavenge radicals and form a char layer, and it is believed that when added to a thermal management fluid, the phosphate-based compounds scavenge flammable radicals generated by the oxidation of the base oil, thereby improving the flash point. According to one embodiment, the addi