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  2. Polytetrafluoroethylene - Wikipedia

    en.wikipedia.org/wiki/Polytetrafluoroethylene

    Polytetrafluoroethylene (PTFE) is a synthetic fluoropolymer of tetrafluoroethylene, and has numerous applications because it is chemically inert. [3] The commonly known brand name of PTFE-based composition is Teflon by Chemours, [4] a spin-off from DuPont, which originally discovered the compound in 1938. [4]

  3. Tetrafluoroethylene - Wikipedia

    en.wikipedia.org/wiki/Tetrafluoroethylene

    A convenient, safe method for generating TFE is the pyrolysis of the sodium salt of pentafluoropropionic acid: [6]. C 2 F 5 CO 2 Na → C 2 F 4 + CO 2 + NaF. The depolymerization reaction – vacuum pyrolysis of PTFE at 650–700 °C (1,200–1,290 °F) in a quartz vessel – is a traditional laboratory synthesis of TFE.

  4. Fluoropolymer - Wikipedia

    en.wikipedia.org/wiki/Fluoropolymer

    In 1938, polytetrafluoroethylene (DuPont brand name Teflon) was discovered by accident by a recently hired DuPont Ph.D., Roy J. Plunkett. While working with tetrafluoroethylene gas to develop refrigerants, he noticed that a previously pressurized cylinder had no pressure remaining. In dissecting the cylinder, he found a mass of white solid in a ...

  5. Fluorinated ethylene propylene - Wikipedia

    en.wikipedia.org/wiki/Fluorinated_ethylene_propylene

    Fluorinated ethylene propylene was invented by DuPont and is sold under the brandname Teflon FEP. Other brandnames are Neoflon FEP from Daikin or Dyneon FEP from Dyneon/3M. FEP is very similar in composition to the fluoropolymers PTFE (polytetrafluoroethylene) and PFA (perfluoroalkoxy polymer resin). FEP and PFA both share PTFE's useful ...

  6. Why is there Teflon in beauty products? [Video] - AOL

    www.aol.com/news/teflon-stuff-nonstick-pan-found...

    Teflon is in a class of fluorinated chemicals called per- and polyfluoroalkyl substances (PFASs), which have been linked to cancer, thyroid disease, and reduced effectiveness of childhood vaccines.

  7. ETFE - Wikipedia

    en.wikipedia.org/wiki/ETFE

    Another key use of ETFE is for the covering of electrical and fiber-optic wiring used in high-stress, low-fume-toxicity and high-reliability situations. Aircraft, spacecraft and motorsport wiring are primary examples. Some small cross-section wires like the wire used for the wire-wrap technique are coated with ETFE.

  8. Surface treatment of PTFE - Wikipedia

    en.wikipedia.org/wiki/Surface_treatment_of_PTFE

    Polytetrafluoroethylene (PTFE), better known by its trade name Teflon, has many desirable properties which make it an attractive material for numerous industries. It has good chemical resistance, a low dielectric constant, low dielectric loss, and a low coefficient of friction, making it ideal for reactor linings, circuit boards, and kitchen utensils, to name a few applications.

  9. Vascular bypass - Wikipedia

    en.wikipedia.org/wiki/Vascular_bypass

    In general, someone's own vein (autograft) is the preferred graft material (or conduit) for a vascular bypass, but other types of grafts such as polytetrafluoroethylene (Teflon), polyethylene terephthalate (Dacron), or a different person's vein are also commonly used. Arteries can also serve as vascular grafts.