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PPE vs. Melamine

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

Density, g/cm3 1.1
1.5

Common Calculations

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