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Encyclopedia > Fluoropolymers

A fluoropolymer is a polymer that contains atoms of fluorine. They are characterized by an unusually high resistance to solvents, acids, and bases. A polymer is a substance composed of molecules with large molecular mass consisting of repeating structural units, or monomers, connected by covalent chemical bonds. ... General Name, Symbol, Number fluorine, F, 9 Chemical series halogens Group, Period, Block 17, 2, p Appearance Yellowish brown gas Atomic mass 18. ...


Fluoropolymers were discovered serendipitously in 1938 by Dr. Roy J. Plunkett. He was working on freon (for the DuPont corporation) and accidentally polymerized tetrafluoroethylene. The result was PTFE (polytetrafluoroethylene), more commonly known as Teflon. This material had the lowest coefficient of friction of any known solid and was inert to virtually all chemicals. Year 1938 (MCMXXXVIII) was a common year starting on Saturday (link will take you to calendar). ... Roy J. Plunkett (June 26, 1910 - May 12, 1994) was the chemist who accidentally invented Teflon in 1938. ... Freon is a trade name for a group of chlorofluorocarbons used primarily as a refrigerant. ... This article is about the DuPont company. ... Tetrafluoroethylene, or tetrafluoroethene, C2F4, is a compound of carbon and fluorine. ... Teflon is the brand name of a polymer compound discovered by Roy J. Plunkett (1910-1994) of DuPont in 1938 and introduced as a commercial product in 1946. ... Teflon is polytetrafluoroethylene (PTFE), a polymer of fluorinated ethylene. ... Friction is the force that opposes the relative motion or tendency toward such motion of two surfaces in contact. ...


Examples of fluoropolymers:

Fluoropolymers may be mechanically characterized as thermosets or thermoplastics. Teflon is the brand name of a polymer compound discovered by Roy J. Plunkett (1910-1994) of DuPont in 1938 and introduced as a commercial product in 1946. ... Teflon is polytetrafluoroethylene (PTFE), a polymer of fluorinated ethylene. ... Teflon is polytetrafluoroethylene (PTFE), a polymer of fluorinated ethylene. ... ETFE (Ethylene TetrafluoroEthylene) - a fluorocarbon-based polymer (a fluoropolymer), a kind of plastic. ... ECTFE (Ethylene chlorotrifluoroethlyene) is a fluorocarbon-based polymer (a fluoropolymer), a kind of plastic. ... PVDF, or PolyVinylidine DiFluoride, is a highly non-reactive and pure thermoplastic fluoropolymer. ... 2,2,2-Trifluoroethanol (TFE) or trifluoroethyl alcohol is a trifluoro substituted alcohol. ... Viton® is a synthetic rubber and fluoropolymer elastomer commanly used in o-rings. ... Thermosetting plastics (thermosets) refer to a range of polymer materials that cure, through the addition of energy, to a stronger form. ... A thermoplastic is a material that is plastic or deformable, melts to a liquid when heated and freezes to a brittle, glassy state when cooled sufficiently. ...


See also

Perfluorocarbons (PFCs) are compounds derived from hydrocarbons by replacement of hydrogen atoms by fluorine atoms. ...

External Links

  • Chemical Resistance of Fluorpolymers

  Results from FactBites:
 
Fluoropolymer - Wikipedia, the free encyclopedia (129 words)
A fluoropolymer is a polymer that contains atoms of fluorine.
Fluoropolymers were discovered serendipitously in 1938 by Dr. Roy J. Plunkett.
He was working on freon (for the DuPont corporation) and accidentally polymerized tetrafluoroethylene.
Conductive melt-processible fluoropolymer - Patent 6582628 (7321 words)
The aqueous dispersion of melt-fabricable fluoropolymer is coagulated to form a coagulum of the fluoropolymer, typically by the addition of electrolyte to the aqueous medium and agitating the dispersion.
Fluoropolymer coagulum particles and powder composition are prepared as in Example 1 but with solvent granulation using 10 kg of 1,1,1,2,3,4,4,5,5,5-decafluoropentane after addition of 500 g of 60% nitric acid to form large granules of the coagulated fluoropolymer.
Fluoropolymer coagulum particles made according to the teaching of this invention and acetylene fl are combined as described in Example 1 except that a Henshel mixer is used.
  More results at FactBites »


 

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