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PLA vs. PPSU

Both PLA and PPSU are thermoplastics. There are 16 material properties with values for both materials. Properties with values for just one material (18, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 3.5
3.6
Elongation at Break, % 6.0
26
Flexural Modulus, GPa 4.0
4.7
Flexural Strength, MPa 80
130
Tensile Strength: Ultimate (UTS), MPa 50
95

Thermal Properties

Glass Transition Temperature, °C 60
220
Heat Deflection Temperature At 455 kPa (66 psi), °C 65
220
Maximum Temperature: Mechanical, °C 50
160
Specific Heat Capacity, J/kg-K 1800
970
Thermal Conductivity, W/m-K 0.13
0.24

Otherwise Unclassified Properties

Density, g/cm3 1.3
1.4

Common Calculations

Stiffness to Weight: Axial, points 1.6
1.4
Stiffness to Weight: Bending, points 40
36
Strength to Weight: Axial, points 11
19
Strength to Weight: Bending, points 24
33
Thermal Diffusivity, mm2/s 0.058
0.17