MakeItFrom.com
Menu (ESC)

PFA vs. PPSU

Both PFA and PPSU are thermoplastics. There are 19 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is PFA and the bottom bar is PPSU.

Metric UnitsUS Customary Units

Mechanical Properties

Elongation at Break, % 300
26
Flexural Modulus, GPa 0.7
4.7
Tensile Strength: Ultimate (UTS), MPa 30
95

Thermal Properties

Heat Deflection Temperature At 1.82 MPa (264 psi), °C 50
210
Heat Deflection Temperature At 455 kPa (66 psi), °C 75
220
Maximum Temperature: Mechanical, °C 260
160
Specific Heat Capacity, J/kg-K 1000
970
Thermal Conductivity, W/m-K 0.25
0.24
Thermal Expansion, µm/m-K 120
45

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 Hz 2.1
3.8
Dielectric Constant (Relative Permittivity) At 1 MHz 2.6
3.4
Dielectric Strength (Breakdown Potential), kV/mm 22
16
Electrical Resistivity Order of Magnitude, 10x Ω-m 16
14

Otherwise Unclassified Properties

Density, g/cm3 2.2
1.4
Limiting Oxygen Index (LOI), % 80
38
Water Absorption After 24 Hours, % 0
0.44

Common Calculations

Strength to Weight: Axial, points 3.9
19
Strength to Weight: Bending, points 10
33
Thermal Diffusivity, mm2/s 0.12
0.17