Hydrofluoroethers: Sustainable Solutions for Electronics-Related Industries - Labinsights

Hydrofluoroethers: Sustainable Solutions for Electronics-Related Industries

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14 November 2024
Fluorointermediates
Fluorointermediates | Photo: Alfa Chemistry

With the development of society and the advancement of science and technology, the electronic information industry has developed rapidly, and people have put forward higher requirements for electronic-related industries: precision, stability, lightness, reliability, etc., and at the same time, good cleaning and cooling conditions need to be provided.

Electronic information products such as electronic components and precision components certainly also need to “bathe” and “cool down”, and higher requirements are put forward for cleaning agents and refrigerants, such as high-energy efficiency, safety, low toxicity, and no pollution. The hydrofluoroether (HFE) series of fluorinated liquids are up to this task, and the research on HFE fluorinated liquids has also become a hot topic of concern in the industry and academia.

HFEs represent a major advance in the field of green chemistry. Responsible companies, such as Alfa Chemistry, have launched a series of hydrofluoroether products (including HFE-7100, HFE-7300, HFE-460, etc.) as valuable tools to meet environmental challenges.

What Are Hydrofluoroethers?

HFEs are organic compounds characterized by the presence of fluorine, hydrogen, and oxygen atoms in their molecular structure. The ether functional group (-O-) imparts unique properties to these compounds, including low surface tension, low viscosity, and good solvency. The presence of fluorine atoms further enhances their stability, thermal resistance, and resistance to oxidation. HFEs were introduced as alternatives to traditional solvents due to increasing environmental concerns and the growing demand for safer chemical products.

Unique Properties of HFEs

  • Low Toxicity: HFEs exhibit low toxicity, making them safer to handle and use compared to many traditional solvents.
  • Low Flammability: Most HFEs are non-flammable or have very narrow flammability limits, reducing the risk of fire hazards.
  • Low Ozone Depletion Potential (ODP): HFEs have negligible ODP, contributing to the protection of the ozone layer.
  • Low Global Warming Potential (GWP): Many HFEs have low GWP, making them suitable for applications where greenhouse gas emissions are a concern.
  • Excellent Solvency: HFEs are effective solvents for a wide range of substances, including oils, greases, and other organic compounds.
  • Thermal Stability: HFEs are thermally stable, allowing them to be used in high-temperature applications.

What Are the Uses of HFEs?

Used As Cleaning Agents
Due to its low surface tension and viscosity, good permeability, and moderate solubility, HFEs have a good cleaning effect and can be used to clean particulate impurities in precision electronic parts; clean FOUPs (front-opening standard wafer boxes); clean LCD/OLED displays, optical parts and lenses; clean semiconductor etching chambers and parts; remove fluorine residue deposits; clean automobile engine parts; clean communication equipment and aviation engines, oxygen pipeline equipment; clean medical equipment parts, etc.

Used As Solvents
As a solvent, HFEs have low viscosity and surface tension, is easy to spread and wet evenly, and is easy to dry quickly. It is non-flammable and has good material compatibility. It can be used as a medium for airtightness testing and voltage withstand testing; electronic coating, screen coating diluent; fluorine oil, fluorine resin, fluorine coating diluent; ignition point adjuster for flammable solvents; reaction solvent and extraction solvent for analysis, etc.

Used As Refrigerants
HFEs have the advantages of excellent electrical properties, wide applicable temperature range, low absolute viscosity in the ultra-low temperature range, non-flammability, high chemical stability, and good material compatibility. They can be used as a refrigerant; a temperature control refrigerant for dry etching equipment, photolithography equipment, ion injection equipment, probes, and information processing equipment; an immersion refrigerant for data centers; an immersion refrigerant for power devices; and can also be used in food industry cooling equipment, freeze drying, freezing, and crushing of rubber and plastics, and cooling equipment for chemical industry-grade pharmaceuticals.

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Alfa Chemistry

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