polytetrafluoroethylene molecule. ptfe

polytetrafluoroethylene ptfe synthetic fluoropolymer tetrafluoroethylene molecular structure chemical structural formula model properties teflon nonstick coating resistance friction electrical insulation medical application cookware sealing material tape lubrication expansion joint polymer chemistry manufacturing process extrusion molding sintering thermal stability dielectric constant biocompatibility frying pan cook compound hazard cooking coat nontoxic corrosive ware stick molecule tetrafluoroethylene model vector