Data for Polytetrafluoroethylene
|UTS||2.1 (1.0 Compressive)||kpsi|
|Heat-Deflection||65 (Usable at 260)||C|
|Price point||$11.97 Per Foot||3/4" rod, SmallParts ZRT-12-24|
Discovered in 1938 when Dr. Roy Plunkett was trying to develop a new CFC refrigerant and accidentally polymerized tetrafluoroethylene to make PTFE (Teflon).
Commercially available in 1946, by 1950 DuPont was producing 1 million lbs per year.
Generally low friction (fluorine has have high electronegativity), high resistance to solvents, acids, bases,
Coeff of friction w/ steel ~0.1 (second lowest after diamond-like carbon - insects canít climb PTFE walls!)
Extemely low dielectric constant (great insulator)
Coating on armor-piercing ammunition (to reduce wear on firearmís rifling)
Gore-Tex is a PTFE membrane with micropores