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Polytetrafluoroethylene (PTFE)
Material Properties
Compressive (Crushing) Strength: 7 to 24 MPa (1.0 to 3.5 x 103 psi)
Density: 2.08 to 2.25 g/cm3 (130 to 140 lb/ft3)
Dielectric Constant (Relative Permittivity): 2.1 to 2.4
Electrical Resistivity Order of Magnitude: 2 to 16 10x Ω-m
Elongation at Break: 75 to 300 %
Flexural Modulus: 0.3 to 1.3 GPa (0.04 to 0.19 x 106 psi)
Flexural Strength (MOR): 13 to 16 MPa (1.9 to 2.3 x 103 psi)
Limiting Oxygen Index (LOI): 80 to 90 %
Melting Onset (Solidus): 335 °C (635 °F)
Tensile Strength: Ultimate (UTS): 9 to 14 MPa (1.3 to 2.0 x 103 psi)
Thermal Conductivity: 0.24 to 0.65 W/m-K
Thermal Expansion: 108 to 130 µm/m-K
See Also
Fluoroplastics: Volume 2 - Melt Processable Fluoropolymers, Sina Ebnesajjad, 2003
Modern Plastics Handbook, Charles A. Harper (editor), 1999
Plastics Materials, 7th ed., J. A. Brydson, 1999
SPI Plastics Engineering Handbook of the Society of the Plastics Industry, Inc., 5th ed., Michael L. Berins (editor), 2000