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Melamine vs. PPE

Melamine belongs to the thermoset plastics classification, while PPE belongs to the thermoplastics. There are 16 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 melamine and the bottom bar is PPE.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 7.0
2.3
Elongation at Break, % 1.0
30
Tensile Strength: Ultimate (UTS), MPa 30
55

Thermal Properties

Maximum Temperature: Autoignition, °C 350
430
Specific Heat Capacity, J/kg-K 1200
1200
Thermal Conductivity, W/m-K 0.5
0.22
Thermal Expansion, µm/m-K 60
90

Electrical Properties

Dielectric Strength (Breakdown Potential), kV/mm 30
19
Electrical Resistivity Order of Magnitude, 10x Ω-m 9.0
13

Otherwise Unclassified Properties

Density, g/cm3 1.5
1.1

Common Calculations

Stiffness to Weight: Axial, points 2.6
1.2
Stiffness to Weight: Bending, points 43
42
Strength to Weight: Axial, points 5.6
14
Strength to Weight: Bending, points 14
30
Thermal Diffusivity, mm2/s 0.28
0.17
Thermal Shock Resistance, points 5.1
19