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PHB vs. DAP

PHB belongs to the thermoplastics classification, while DAP belongs to the thermoset plastics. There are 12 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 1.3
13
Elongation at Break, % 7.5
31
Flexural Strength, MPa 20
62
Tensile Strength: Ultimate (UTS), MPa 30
28

Thermal Properties

Heat Deflection Temperature At 1.82 MPa (264 psi), °C 60
160

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 Hz 3.0
5.2
Electrical Resistivity Order of Magnitude, 10x Ω-m 14
13

Otherwise Unclassified Properties

Density, g/cm3 1.3
1.7

Common Calculations

Stiffness to Weight: Axial, points 0.58
4.1
Stiffness to Weight: Bending, points 29
46
Strength to Weight: Axial, points 6.7
4.5
Strength to Weight: Bending, points 17
12