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PBT vs. PHB

Both PBT and PHB 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 PBT and the bottom bar is PHB.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 2.7 to 8.7
1.3
Elongation at Break, % 2.5 to 43
7.5
Flexural Strength, MPa 79 to 210
20
Tensile Strength: Ultimate (UTS), MPa 58 to 140
30

Thermal Properties

Heat Deflection Temperature At 1.82 MPa (264 psi), °C 4.0
60
Melting Onset (Solidus), °C 230
180

Otherwise Unclassified Properties

Density, g/cm3 1.3 to 1.5
1.3

Common Calculations

Stiffness to Weight: Axial, points 1.1 to 3.2
0.58
Stiffness to Weight: Bending, points 35 to 45
29
Strength to Weight: Axial, points 12 to 25
6.7
Strength to Weight: Bending, points 25 to 38
17