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PPSU vs. PCTFE

Both PPSU and PCTFE are thermoplastics. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 140
38
Elastic (Young's, Tensile) Modulus, GPa 3.6
1.4
Elongation at Break, % 26
150
Flexural Modulus, GPa 4.7
1.2
Flexural Strength, MPa 130
59
Impact Strength: Notched Izod, J/m 80
160
Rockwell R Hardness 130
80
Tensile Strength: Ultimate (UTS), MPa 95
36

Thermal Properties

Glass Transition Temperature, °C 220
100
Heat Deflection Temperature At 1.82 MPa (264 psi), °C 210
110
Heat Deflection Temperature At 455 kPa (66 psi), °C 220
130
Maximum Temperature: Autoignition, °C 580
580
Maximum Temperature: Decomposition, °C 560
370
Maximum Temperature: Mechanical, °C 160
150
Specific Heat Capacity, J/kg-K 970
920
Thermal Conductivity, W/m-K 0.24
0.21
Thermal Expansion, µm/m-K 45
130

Electrical Properties

Dielectric Strength (Breakdown Potential), kV/mm 16
21
Electrical Resistivity Order of Magnitude, 10x Ω-m 14
16

Otherwise Unclassified Properties

Density, g/cm3 1.4
2.1
Limiting Oxygen Index (LOI), % 38
80
Water Absorption After 24 Hours, % 0.44
0.0094

Common Calculations

Stiffness to Weight: Axial, points 1.4
0.37
Stiffness to Weight: Bending, points 36
17
Strength to Weight: Axial, points 19
4.6
Strength to Weight: Bending, points 33
11
Thermal Diffusivity, mm2/s 0.17
0.11
Thermal Shock Resistance, points 42
14