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  2. Polytetrafluoroethylene - Wikipedia

    en.wikipedia.org/wiki/Polytetrafluoroethylene

    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.

  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. Composite bearing - Wikipedia

    en.wikipedia.org/wiki/Composite_bearing

    PTFE is a fluorocarbon solid, as it is a high-molecular-weight compound consisting wholly of carbon and fluorine. PTFE is hydrophobic: neither water nor water-containing substances wet PTFE. Components engineered with PTFE offer consistent, controlled friction over their lifetime. [4]

  5. Water-reactive substances - Wikipedia

    en.wikipedia.org/wiki/Water-reactive_substances

    Water-reactive substances [1] are those that spontaneously undergo a chemical reaction with water, often noted as generating flammable gas. [2] Some are highly reducing in nature. [ 3 ] Notable examples include alkali metals , lithium through caesium , and alkaline earth metals , magnesium through barium .

  6. Fluorocarbon - Wikipedia

    en.wikipedia.org/wiki/Fluorocarbon

    Perfluoroalkanes are very stable because of the strength of the carbon–fluorine bond, one of the strongest in organic chemistry. [4] Its strength is a result of the electronegativity of fluorine imparting partial ionic character through partial charges on the carbon and fluorine atoms, which shorten and strengthen the bond (compared to carbon-hydrogen bonds) through favorable covalent ...

  7. Shopping for a Cookware Set This Black Friday? Experts ... - AOL

    www.aol.com/shopping-cookware-set-black-friday...

    Its water-repellent coating requires less oil for cooking but typically wears out within one to two years. The quality of nonstick cookware depends on the formula and number of coating layers.

  8. Thermoplastic - Wikipedia

    en.wikipedia.org/wiki/Thermoplastic

    Polytetrafluoroethylene (PTFE) is a synthetic fluoropolymer of tetrafluoroethylene is commonly recognized under the brand name Teflon. PTFE is hydrophobic : aqueous liquids do not wet the material, as fluorocarbons demonstrate mitigated London dispersion forces due to the high electronegativity of fluorine.

  9. “What’s The Most Frugal Thing You Do?” (50 Answers) - AOL

    www.aol.com/lifestyle/people-shared-66-most...

    They bank water and when they decay they make new soil. #34. I bring home half used soap bars from hotels that I already opened. Mostly for the environment but most people won’t bother. #35.