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PAS vs. PPE

Both PAS and PPE are thermoplastics. There are 16 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is PAS and the bottom bar is PPE.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 2.7
2.3
Elongation at Break, % 40
30
Flexural Strength, MPa 110
75
Tensile Strength: Ultimate (UTS), MPa 83
55

Thermal Properties

Heat Deflection Temperature At 1.82 MPa (264 psi), °C 200
120
Thermal Expansion, µm/m-K 49
90

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 MHz 3.5
2.7
Dielectric Strength (Breakdown Potential), kV/mm 15
19
Electrical Resistivity Order of Magnitude, 10x Ω-m 15
13

Otherwise Unclassified Properties

Density, g/cm3 1.4
1.1
Water Absorption After 24 Hours, % 0.4
0.23

Common Calculations

Stiffness to Weight: Axial, points 1.1
1.2
Stiffness to Weight: Bending, points 34
42
Strength to Weight: Axial, points 17
14
Strength to Weight: Bending, points 31
30
Thermal Shock Resistance, points 45
19