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PPSU vs. PMP

Both PPSU and PMP 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 PPSU and the bottom bar is PMP.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 3.6
1.1
Elongation at Break, % 26
30
Impact Strength: Notched Izod, J/m 80
130
Tensile Strength: Ultimate (UTS), MPa 95
24

Thermal Properties

Glass Transition Temperature, °C 220
30
Maximum Temperature: Mechanical, °C 160
140
Specific Heat Capacity, J/kg-K 970
1750
Thermal Conductivity, W/m-K 0.24
0.17
Thermal Expansion, µm/m-K 45
120

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 Hz 3.8
2.1
Dielectric Strength (Breakdown Potential), kV/mm 16
28
Electrical Resistivity Order of Magnitude, 10x Ω-m 14
14

Otherwise Unclassified Properties

Density, g/cm3 1.4
0.83

Common Calculations

Stiffness to Weight: Axial, points 1.4
0.74
Stiffness to Weight: Bending, points 36
41
Strength to Weight: Axial, points 19
8.0
Strength to Weight: Bending, points 33
22
Thermal Diffusivity, mm2/s 0.17
0.12
Thermal Shock Resistance, points 42
13