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PCTFE vs. Phenolic

PCTFE belongs to the thermoplastics classification, while phenolic belongs to the thermoset plastics. There are 20 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 1.4
3.8
Elongation at Break, % 150
2.0
Tensile Strength: Ultimate (UTS), MPa 36
48

Thermal Properties

Glass Transition Temperature, °C 100
170
Maximum Temperature: Autoignition, °C 580
430
Maximum Temperature: Decomposition, °C 370
260
Maximum Temperature: Mechanical, °C 150
150
Specific Heat Capacity, J/kg-K 920
1400
Thermal Conductivity, W/m-K 0.21
0.25
Thermal Expansion, µm/m-K 130
120

Electrical Properties

Dielectric Strength (Breakdown Potential), kV/mm 21
46
Electrical Resistivity Order of Magnitude, 10x Ω-m 16
11

Otherwise Unclassified Properties

Density, g/cm3 2.1
1.3
Limiting Oxygen Index (LOI), % 80
27

Common Calculations

Stiffness to Weight: Axial, points 0.37
1.6
Stiffness to Weight: Bending, points 17
40
Strength to Weight: Axial, points 4.6
10
Strength to Weight: Bending, points 11
23
Thermal Diffusivity, mm2/s 0.11
0.14
Thermal Shock Resistance, points 14
7.5