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PHB vs. PVDF

Both PHB and PVDF are thermoplastics. There are 15 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 1.3
1.1
Elongation at Break, % 7.5
200
Flexural Strength, MPa 20
75
Tensile Strength: Ultimate (UTS), MPa 30
49

Thermal Properties

Heat Deflection Temperature At 1.82 MPa (264 psi), °C 60
85
Maximum Temperature: Mechanical, °C 120
140
Melting Onset (Solidus), °C 180
170

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 Hz 3.0
7.5
Electrical Resistivity Order of Magnitude, 10x Ω-m 14
12

Otherwise Unclassified Properties

Density, g/cm3 1.3
1.8
Water Absorption After 24 Hours, % 0.75
0

Common Calculations

Stiffness to Weight: Axial, points 0.58
0.35
Stiffness to Weight: Bending, points 29
20
Strength to Weight: Axial, points 6.7
7.8
Strength to Weight: Bending, points 17
17