Polytetrafluoroethylene (PTFE) is a fluoropolymer and is commonly known by its trade name, Teflon®. Unique properties of PTFE include nonreactivity, hydrophobicity, a low coefficient of friction, and good insulating properties. It is most commonly used as a nonstick coating for cookware. Other applications like sealing tapes, bearings seals, chemical liners, fibre impregnation, wire and cable insulation, aerospace and electronics, tensioned membrane structures, lubricants, medical, automotive industries are also widely used.
The basic properties of PTFE which make it an interesting material with high commercial value are:
Exception chemical resistance
Good resistance to heat and low temperature
Good electrical insulating power in hot and wet environments
Good resistance to light, UV and weathering
Low coefficient of friction (static 0.08 and dynamic 0.01)
Nonstick property over a wide temperature range (260 to 260°C)
Low dielectric constant/dissipation factor
Strong anti-adhesion properties
Flexibility
Good fatigue resistance under low stress
Availability of food, medical and high-purity grades
Low water absorption
One of the common applications of polytetrafluoroethylene PTFE is non-stick coating in kitchen cookware (pans, baking trays, etc.). Other applications including but not limited to oil & gas, chemical processing, industrial, electrical/electronic, and construction sectors.