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PPE vs. Phenolic

PPE belongs to the thermoplastics classification, while phenolic belongs to the thermoset plastics. There are 19 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 2.3
3.8
Elongation at Break, % 30
2.0
Tensile Strength: Ultimate (UTS), MPa 55
48

Thermal Properties

Glass Transition Temperature, °C 85
170
Maximum Temperature: Autoignition, °C 430
430
Maximum Temperature: Mechanical, °C 90
150
Specific Heat Capacity, J/kg-K 1200
1400
Thermal Conductivity, W/m-K 0.22
0.25
Thermal Expansion, µm/m-K 90
120

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 MHz 2.7
7.5
Dielectric Strength (Breakdown Potential), kV/mm 19
46
Electrical Resistivity Order of Magnitude, 10x Ω-m 13
11

Otherwise Unclassified Properties

Density, g/cm3 1.1
1.3

Common Calculations

Stiffness to Weight: Axial, points 1.2
1.6
Stiffness to Weight: Bending, points 42
40
Strength to Weight: Axial, points 14
10
Strength to Weight: Bending, points 30
23
Thermal Diffusivity, mm2/s 0.17
0.14
Thermal Shock Resistance, points 19
7.5