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PHB vs. PLA

Both PHB and PLA are thermoplastics. There are 11 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 1.3
3.5
Elongation at Break, % 7.5
6.0
Flexural Strength, MPa 20
80
Tensile Strength: Ultimate (UTS), MPa 30
50

Thermal Properties

Maximum Temperature: Mechanical, °C 120
50
Melting Onset (Solidus), °C 180
160

Otherwise Unclassified Properties

Density, g/cm3 1.3
1.3

Common Calculations

Stiffness to Weight: Axial, points 0.58
1.6
Stiffness to Weight: Bending, points 29
40
Strength to Weight: Axial, points 6.7
11
Strength to Weight: Bending, points 17
24