Knowledge

Application and characteristics of fluorinated liquid in immersion liquid cooling

Apr 23, 2025 Leave a message

 

Fluorinated liquid, a colorless and transparent chemical solvent, plays an important role in the field of semiconductor manufacturing with its excellent chemical inertness, electrical insulation, thermal conductivity and unique low surface tension. It is often used as a heat transfer medium and is widely used in immersion liquid cooling technology. In addition, its insulating and non-flammable properties also make it an ideal choice for data center liquid cooling technology, and it has become the most widely used coolant in this field. Since fluorinated liquid does not corrode when in contact with electronic components and does not require special cleaning after use, it is also often used as an electronic test liquid.

 

Its excellent thermal conductivity ensures its application effect as a stable coolant.

 

info-1730-384

 

Performance characteristics of fluorinated liquid
Fluorinated liquid has a colorless and transparent appearance, and is odorless and non-toxic, ensuring its safety in use. It has low surface tension and low viscosity, and exhibits good wettability, which enables the effective implementation of immersion liquid cooling technology. In addition, fluorinated liquid also has excellent cleaning performance and solubility, which can easily remove dirt on electronic components. Its excellent material compatibility and stable chemical inertness ensure that long-term contact with electronic components will not cause corrosion. At the same time, good volatility makes no watermark residue after cleaning, and its incompatibility with water further enhances its cleaning effect. In addition, fluorinated liquid also shows good thermal stability, and its environmental characteristics ODP value is 0, which does not damage ozone, and has a low greenhouse effect value, which meets environmental protection requirements.

 

Environmental performance

  • Ozone depletion potential value ODP: fluorinated liquid has zero ozone depletion potential value, that is, it has no destructive effect on ozone.
  • Global warming potential coefficient: This value is extremely low, showing its good environmental performance.
  • Volatile organic compounds: fluorinated liquid does not belong to the category of volatile organic compounds.
  • ROHS environmental protection directive: fluorinated liquid fully complies with the requirements of ROHS environmental protection directive.

 

Safety performance

  • No flash point: This product has no flash point, so it does not have a fire hazard and is a non-flammable substance.
  • Non-toxic throughout: During use, the fluorinated liquid always remains non-toxic.
  • Carcinogens: None of the components of fluorinated fluids are classified as carcinogens according to OSHA, IARC, and NTP classifications.
  • Industrial Safety: Since fluorinated fluids are colorless, odorless, flashless, and non-flammable, they are safe to use in industrial environments.
  • OSHA Regulations: All components of this product meet the regulatory requirements of OSHA, IARC, and NTP and are not listed as carcinogens.

 

Application Areas of Fluorinated Fluids

  • Electronic Component Cleaning: Fluorinated fluids can effectively clean electronic components and remove dirt and impurities.
  • Solvent and Lubricant Dilution: It can also be used as a solvent or lubricant diluent for a variety of industrial applications.
  • Semiconductor Manufacturing and Packaging Testing: In the semiconductor industry, fluorinated fluids play a key role in supporting the manufacturing and packaging testing processes.
  • Therma shock test: This fluid is suitable for hot and cold shock testing to ensure the product's heat resistance and

 

Cold resistance

  • Thermal Conductive and Cooling Medium: Fluorinated fluids are widely used in computer servers and electronic component systems as efficient thermal and cooling media.
  • Immersed liquid cooling: Its unique physical properties make it an ideal choice for immersing liquid cooling technology.

 

 

Liquid-cooled servers, a type of server that uses liquid injection and heat exchange to remove server heat, can be divided into two physical forms: cold plate liquid cooling servers and fully immersed liquid cooling servers.

 

Cold plate liquid cooling technology uses the working fluid as a medium for heat transfer to efficiently transfer the heat in the server to a distant place for cooling. In this technology, the working liquid is kept separate from the electronic device, and the heat of the object to be cooled is introduced into the refrigerant through efficient heat conduction components such as liquid cold plates. This indirect liquid cooling method not only has a much higher cooling efficiency than air cooling, but also transfers up to 1,000 times more heat per unit volume, which can effectively solve the heat dissipation problem of high-density servers while reducing the energy consumption and noise of the cooling system.

 

On the other hand, immersing liquid cooling servers use a completely different cooling strategy. In this system, components with high heat generation, such as the server motherboard, CPU, and memory, are completely immersed in the refrigerant. In the working state, the heat generated by these heat-generating components will cause the refrigerant temperature to rise. When the refrigerant temperature reaches the boiling point corresponding to the system pressure, the refrigerant will undergo a phase change from liquid to gas, absorbing a large amount of heat through vaporization heat, thereby achieving effective heat transfer.

 

This phase change liquid cooling technology directly uses liquid phase change to take away heat, reducing the thermal resistance of the heat transfer process. Compared with cold plate liquid cooling, its heat transfer efficiency is higher, becoming a new energy-saving and efficient refrigeration mode.

 

info-1201-793

 

Send Inquiry