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PMP vs. PPE

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

Density, g/cm3 0.83
1.1

Common Calculations

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