- Krytox
Krytox is a trademark of a family of high performance synthetic
lubricant s (oil s and greases) used in many things from spaceships to computer chip manufacturing. It is a chemical polymer belonging to theether family that was patented by the chemical manufacturing giantDuPont . Krytox oils are afluorocarbon polymers ofpolyhexafluoropropylene oxide , with a chemical formula:F-(CF(CF_3)-CF_2-O)_n-CF_2CF_3,
where the
degree of polymerization , n, generally lies within the range n=10-60.DuPont Krytox Performance Lubricants Product Overview, available online [http://www2.dupont.com/Lubricants/en_US/assets/downloads/H-58505-1.pdf here] ] This mixture of compounds are collectively known by many names, including perfluoropolyether (PFPE), perfluoroalkylether (PFAE), or perfluoropolyalkylether(PFPAE). A unique identifier is theirCAS registry number , 60164-51-4.In addition to PFPE, krytox grease also contains
telomer s ofPTFE , and in many ways krytox is designed to be a liquid or grease form of PTFE. Krytox is thermally stable, nonflammable (even inliquid oxygen ), nontoxic, and insoluble in water, acids, bases, and most organicsolvent s. It has very low vapor pressure and can be used between about -60 and +316 to +399 °C. It is highly resistant toionizing radiation , making it useful for aerospace and nuclear industry. It can withstand extreme pressure and high mechanical stress.See also
*
grease (lubricant)
*fluorocarbon External links
* [http://www.tmcindustries.com/lubricants.html Krytox]
* [http://www.dupont.com/lubricants/en/scienceofkrytox/science.html DuPont page]
* [http://www.lubes.com.mx/krytox/beneficios.htm Krytox Spanish]References
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