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PPSU vs. Phenolic

PPSU belongs to the thermoplastics classification, while phenolic belongs to the thermoset plastics. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 3.6
3.8
Elongation at Break, % 26
2.0
Tensile Strength: Ultimate (UTS), MPa 95
48

Thermal Properties

Glass Transition Temperature, °C 220
170
Maximum Temperature: Autoignition, °C 580
430
Maximum Temperature: Decomposition, °C 560
260
Maximum Temperature: Mechanical, °C 160
150
Specific Heat Capacity, J/kg-K 970
1400
Thermal Conductivity, W/m-K 0.24
0.25
Thermal Expansion, µm/m-K 45
120

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 MHz 3.4
7.5
Dielectric Strength (Breakdown Potential), kV/mm 16
46
Electrical Resistivity Order of Magnitude, 10x Ω-m 14
11

Otherwise Unclassified Properties

Density, g/cm3 1.4
1.3
Limiting Oxygen Index (LOI), % 38
27

Common Calculations

Stiffness to Weight: Axial, points 1.4
1.6
Stiffness to Weight: Bending, points 36
40
Strength to Weight: Axial, points 19
10
Strength to Weight: Bending, points 33
23
Thermal Diffusivity, mm2/s 0.17
0.14
Thermal Shock Resistance, points 42
7.5