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PMMA vs. PHB

Both PMMA and PHB are thermoplastics. There are 13 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 PMMA and the bottom bar is PHB.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 3.2
1.3
Elongation at Break, % 4.0
7.5
Flexural Strength, MPa 110
20
Tensile Strength: Ultimate (UTS), MPa 71
30

Thermal Properties

Heat Deflection Temperature At 1.82 MPa (264 psi), °C 96
60
Melting Onset (Solidus), °C 180
180
Vicat Softening Temperature, °C 90
58

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 Hz 3.6
3.0

Otherwise Unclassified Properties

Density, g/cm3 1.2
1.3

Common Calculations

Stiffness to Weight: Axial, points 1.5
0.58
Stiffness to Weight: Bending, points 42
29
Strength to Weight: Axial, points 17
6.7
Strength to Weight: Bending, points 32
17