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PPA vs. PVDF

Both PPA and PVDF are thermoplastics. There are 18 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 2.1 to 2.2
1.1
Elongation at Break, % 30
200
Flexural Modulus, GPa 2.3 to 2.4
1.5
Flexural Strength, MPa 95 to 110
75
Tensile Strength: Ultimate (UTS), MPa 57 to 69
49

Thermal Properties

Glass Transition Temperature, °C 92 to 130
-40
Heat Deflection Temperature At 1.82 MPa (264 psi), °C 120
85
Maximum Temperature: Decomposition, °C 450
440
Melting Onset (Solidus), °C 310
170
Specific Heat Capacity, J/kg-K 1400
1120
Thermal Conductivity, W/m-K 0.15
0.12

Otherwise Unclassified Properties

Density, g/cm3 1.1
1.8
Water Absorption After 24 Hours, % 0.7
0

Common Calculations

Stiffness to Weight: Axial, points 1.0 to 1.1
0.35
Stiffness to Weight: Bending, points 38
20
Strength to Weight: Axial, points 14 to 17
7.8
Strength to Weight: Bending, points 29 to 33
17
Thermal Diffusivity, mm2/s 0.095
0.061