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PPSU vs. PET

Both PPSU and PET are thermoplastics. There are 17 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 3.6
3.5 to 11
Elongation at Break, % 26
2.5 to 70
Flexural Modulus, GPa 4.7
8.3 to 14
Impact Strength: Notched Izod, J/m 80
43 to 85
Tensile Strength: Ultimate (UTS), MPa 95
60 to 140

Thermal Properties

Glass Transition Temperature, °C 220
70
Maximum Temperature: Autoignition, °C 580
410
Maximum Temperature: Decomposition, °C 560
390
Maximum Temperature: Mechanical, °C 160
80
Specific Heat Capacity, J/kg-K 970
1000 to 1150

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 Hz 3.8
3.7

Otherwise Unclassified Properties

Density, g/cm3 1.4
1.4 to 1.6
Limiting Oxygen Index (LOI), % 38
21

Common Calculations

Stiffness to Weight: Axial, points 1.4
1.2 to 4.4
Stiffness to Weight: Bending, points 36
32 to 54
Strength to Weight: Axial, points 19
12 to 27
Strength to Weight: Bending, points 33
25 to 41