MakeItFrom.com
Menu (ESC)

ECTFE vs. PPE

Both ECTFE and PPE are thermoplastics. There are 22 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 ECTFE and the bottom bar is PPE.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 1.6
2.3
Elongation at Break, % 230
30
Flexural Strength, MPa 47
75
Tensile Strength: Ultimate (UTS), MPa 49
55

Thermal Properties

Heat Deflection Temperature At 1.82 MPa (264 psi), °C 91
120
Maximum Temperature: Autoignition, °C 620
430
Maximum Temperature: Mechanical, °C 150
90
Melting Onset (Solidus), °C 240
260
Specific Heat Capacity, J/kg-K 1170
1200
Thermal Conductivity, W/m-K 0.15
0.22
Thermal Expansion, µm/m-K 100
90

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 MHz 2.6
2.7
Dielectric Strength (Breakdown Potential), kV/mm 18
19
Electrical Resistivity Order of Magnitude, 10x Ω-m 14
13

Otherwise Unclassified Properties

Density, g/cm3 1.7
1.1
Water Absorption After 24 Hours, % 0.094
0.23

Common Calculations

Stiffness to Weight: Axial, points 0.52
1.2
Stiffness to Weight: Bending, points 23
42
Strength to Weight: Axial, points 8.1
14
Strength to Weight: Bending, points 18
30
Thermal Diffusivity, mm2/s 0.078
0.17
Thermal Shock Resistance, points 22
19