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RTPU vs. PCTFE

Both RTPU and PCTFE are thermoplastics. There are 17 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 4.0
1.4
Elongation at Break, % 5.0
150
Tensile Strength: Ultimate (UTS), MPa 75
36

Thermal Properties

Maximum Temperature: Autoignition, °C 270
580
Maximum Temperature: Decomposition, °C 320
370
Specific Heat Capacity, J/kg-K 1760
920
Thermal Conductivity, W/m-K 0.6
0.21
Thermal Expansion, µm/m-K 100
130

Electrical Properties

Dielectric Strength (Breakdown Potential), kV/mm 24
21
Electrical Resistivity Order of Magnitude, 10x Ω-m 14
16

Otherwise Unclassified Properties

Density, g/cm3 1.1
2.1

Common Calculations

Stiffness to Weight: Axial, points 2.1
0.37
Stiffness to Weight: Bending, points 50
17
Strength to Weight: Axial, points 20
4.6
Strength to Weight: Bending, points 38
11
Thermal Diffusivity, mm2/s 0.32
0.11
Thermal Shock Resistance, points 13
14