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PPSU vs. PAI

Both PPSU and PAI are thermoplastics. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 140
260 to 300
Elastic (Young's, Tensile) Modulus, GPa 3.6
4.0 to 8.3
Elongation at Break, % 26
3.0 to 12
Flexural Modulus, GPa 4.7
4.0 to 6.8
Flexural Strength, MPa 130
160 to 320
Impact Strength: Notched Izod, J/m 80
45 to 140
Tensile Strength: Ultimate (UTS), MPa 95
100 to 180

Thermal Properties

Glass Transition Temperature, °C 220
280
Heat Deflection Temperature At 1.82 MPa (264 psi), °C 210
280
Maximum Temperature: Autoignition, °C 580
530
Maximum Temperature: Decomposition, °C 560
490
Maximum Temperature: Mechanical, °C 160
260
Specific Heat Capacity, J/kg-K 970
910 to 1000
Thermal Conductivity, W/m-K 0.24
0.26 to 0.53
Thermal Expansion, µm/m-K 45
15 to 34

Otherwise Unclassified Properties

Density, g/cm3 1.4
1.4 to 1.6
Limiting Oxygen Index (LOI), % 38
45
Water Absorption After 24 Hours, % 0.44
0.3 to 0.4

Common Calculations

Stiffness to Weight: Axial, points 1.4
1.6 to 3.2
Stiffness to Weight: Bending, points 36
38 to 47
Strength to Weight: Axial, points 19
19 to 34
Strength to Weight: Bending, points 33
33 to 49
Thermal Diffusivity, mm2/s 0.17
0.16 to 0.41
Thermal Shock Resistance, points 42
48 to 110