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PCTFE vs. PES

Both PCTFE and PES are thermoplastics. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is PCTFE and the bottom bar is PES.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 1.4
2.6
Elongation at Break, % 150
65
Flexural Modulus, GPa 1.2
2.6
Flexural Strength, MPa 59
130
Impact Strength: Notched Izod, J/m 160
91
Tensile Strength: Ultimate (UTS), MPa 36
87

Thermal Properties

Glass Transition Temperature, °C 100
220
Heat Deflection Temperature At 1.82 MPa (264 psi), °C 110
200
Heat Deflection Temperature At 455 kPa (66 psi), °C 130
210
Maximum Temperature: Autoignition, °C 580
500
Maximum Temperature: Decomposition, °C 370
540
Maximum Temperature: Mechanical, °C 150
200
Specific Heat Capacity, J/kg-K 920
1100
Thermal Conductivity, W/m-K 0.21
0.18
Thermal Expansion, µm/m-K 130
53

Electrical Properties

Dielectric Strength (Breakdown Potential), kV/mm 21
16
Electrical Resistivity Order of Magnitude, 10x Ω-m 16
15

Otherwise Unclassified Properties

Density, g/cm3 2.1
1.4
Limiting Oxygen Index (LOI), % 80
36
Water Absorption After 24 Hours, % 0.0094
0.34

Common Calculations

Stiffness to Weight: Axial, points 0.37
1.1
Stiffness to Weight: Bending, points 17
33
Strength to Weight: Axial, points 4.6
18
Strength to Weight: Bending, points 11
32
Thermal Diffusivity, mm2/s 0.11
0.12
Thermal Shock Resistance, points 14
45