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2. Dry lubricant - Wikipedia

   en.wikipedia.org/wiki/Dry_lubricant

   Polytetrafluorethylene (PTFE) is widely used as an additive in lubricating oils and greases. Due to the low surface energy of PTFE, stable unflocculated dispersions of PTFE in oil or water can be produced. Contrary to the other solid lubricants discussed, PTFE does not have a layered structure.

3. 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]

4. Lubricant - Wikipedia

   en.wikipedia.org/wiki/Lubricant

   PTFE: polytetrafluoroethylene (PTFE) is typically used as a coating layer on, for example, cooking utensils to provide a non-stick surface. Its usable temperature range up to 350 °C and chemical inertness make it a useful additive in special greases , where it can function both as a thickener and a lubricant.

5. Perfluoropolyether - Wikipedia

   en.wikipedia.org/wiki/Perfluoropolyether

   Each type of perfluoropolyether is synthesized differently: PFPE-K is obtained from HFPO by anionic polymerization.For PFPE-Y and PFBE-Z, photooxidation of hexafluoropropylene and tetrafluoroethylene, respectively, is applied.

6. Motor oil - Wikipedia

   en.wikipedia.org/wiki/Motor_oil

   PTFE is a very soft material, thus its friction coefficient becomes worse than that of hardened steel-to-steel mating surfaces under common loads. PTFE is used in composition of sliding bearings where it improves lubrication under relatively light load until the oil pressure builds up to full hydrodynamic lubricating conditions. [citation needed]

7. Obesity Rates in the U.S. Drop for the First Time in a Decade ...

   www.aol.com/obesity-rates-u-drop-first-204508332...

   For the first time in a decade, rates of adult obesity in the United States have dropped, a new study has found.. The study followed nearly 17 million people, the majority of whom were in the 26 ...