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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 invented the compound in 1938. [4]
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]
Some mass-market engine oil additives, notably the ones containing PTFE/Teflon (e.g. Slick 50) [17] and chlorinated paraffins (e.g. Dura Lube), [18] caused a major backlash by consumers; the U.S. Federal Trade Commission investigated many mass-marketed engine oil additives in the late
Why did General Motors (GM) fail? The fourth reason is its failure to innovate. Since GM was focused on profiting from finance, it did not really care that much about building better vehicles. In ...
GM is potentially facing a large warranty issue as the National Highway Traffic Safety Administration (NHTSA) opened a preliminary investigation into engine failure affecting 877,710 GM SUVs and ...
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.