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PCL vs. PEI

Both PCL and PEI are thermoplastics. There are 11 material properties with values for both materials. Properties with values for just one material (19, in this case) are not shown.

For each property being compared, the top bar is PCL and the bottom bar is PEI.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 1.2
3.4 to 5.6
Elongation at Break, % 300
3.0 to 34
Tensile Strength: Ultimate (UTS), MPa 10
110 to 160

Thermal Properties

Glass Transition Temperature, °C -60
210
Maximum Temperature: Decomposition, °C 200
530
Maximum Temperature: Mechanical, °C 40
170

Otherwise Unclassified Properties

Density, g/cm3 1.1
1.3 to 1.5

Common Calculations

Stiffness to Weight: Axial, points 0.61
1.5 to 2.1
Stiffness to Weight: Bending, points 32
39
Strength to Weight: Axial, points 2.5
24 to 30
Strength to Weight: Bending, points 9.4
40 to 44