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PPE vs. PMP

Both PPE and PMP are thermoplastics. There are 18 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 2.3
1.1
Elongation at Break, % 30
30
Tensile Strength: Ultimate (UTS), MPa 55
24

Thermal Properties

Glass Transition Temperature, °C 85
30
Maximum Temperature: Mechanical, °C 90
140
Melting Onset (Solidus), °C 260
230
Specific Heat Capacity, J/kg-K 1200
1750
Thermal Conductivity, W/m-K 0.22
0.17
Thermal Expansion, µm/m-K 90
120

Electrical Properties

Dielectric Strength (Breakdown Potential), kV/mm 19
28
Electrical Resistivity Order of Magnitude, 10x Ω-m 13
14

Otherwise Unclassified Properties

Density, g/cm3 1.1
0.83

Common Calculations

Stiffness to Weight: Axial, points 1.2
0.74
Stiffness to Weight: Bending, points 42
41
Strength to Weight: Axial, points 14
8.0
Strength to Weight: Bending, points 30
22
Thermal Diffusivity, mm2/s 0.17
0.12
Thermal Shock Resistance, points 19
13