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PPE vs. PAS

Both PPE and PAS 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 PPE and the bottom bar is PAS.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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