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What (who) is PTFE - definition
![PTFE is often used to coat [[non-stick pans]] as it is [[hydrophobic]] and possesses fairly high heat resistance.](https://commons.wikimedia.org/wiki/Special:FilePath/Blintzes in frying pan.jpg?width=200 "PTFE is often used to coat [[non-stick pans]] as it is [[hydrophobic]] and possesses fairly high heat resistance.")
![PTFE thermal cover showing impact craters, from NASA's Ultra Heavy Cosmic Ray Experiment (UHCRE) on the [[Long Duration Exposure Facility]] (LDEF).](https://commons.wikimedia.org/wiki/Special:FilePath/EL-1994-00019.jpeg?width=200 "PTFE thermal cover showing impact craters, from NASA's Ultra Heavy Cosmic Ray Experiment (UHCRE) on the [[Long Duration Exposure Facility]] (LDEF).")
![PTFE-jacketed (white) shielded [[twisted-pair cable]]s](https://commons.wikimedia.org/wiki/Special:FilePath/Gore twisted pair cable, Passenger Experience Week 2018, Hamburg (1X7A3731) (cropped).jpg?width=200 "PTFE-jacketed (white) shielded [[twisted-pair cable]]s")
![Teflon is also used as the trade name for a polymer with similar properties, [[perfluoroalkoxy polymer resin]] (PFA).](https://commons.wikimedia.org/wiki/Special:FilePath/PFA structure.PNG?width=200 "Teflon is also used as the trade name for a polymer with similar properties, [[perfluoroalkoxy polymer resin]] (PFA).")
Wikipedia
Polytetrafluoroethylene (PTFE) is a synthetic fluoropolymer of tetrafluoroethylene that has numerous applications. It is one of the best-known and widely applied PFAS. The commonly known brand name of PTFE-based composition is Teflon by Chemours, a spin-off from DuPont, which originally discovered the compound in 1938.
Polytetrafluoroethylene is a fluorocarbon solid, as it is a high-molecular-weight polymer consisting wholly of carbon and fluorine. PTFE is hydrophobic: neither water nor water-containing substances wet PTFE, as fluorocarbons exhibit only small London dispersion forces due to the low electric polarizability of fluorine. PTFE has one of the lowest coefficients of friction of any solid.
Polytetrafluoroethylene is used as a non-stick coating for pans and other cookware. It is non-reactive, partly because of the strength of carbon–fluorine bonds, so it is often used in containers and pipework for reactive and corrosive chemicals. Where used as a lubricant, PTFE reduces friction, wear, and energy consumption of machinery. It is used as a graft material in surgery and as a coating on catheters.
