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Thermoplastic PI vs. LDPE

Both thermoplastic PI and LDPE are thermoplastics. There are 11 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is thermoplastic PI and the bottom bar is LDPE.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 3.7 to 20
0.3
Tensile Strength: Ultimate (UTS), MPa 110 to 220
7.0

Thermal Properties

Glass Transition Temperature, °C 260
-130
Maximum Temperature: Autoignition, °C 600
380
Maximum Temperature: Decomposition, °C 530
400
Specific Heat Capacity, J/kg-K 970 to 1100
2300

Otherwise Unclassified Properties

Density, g/cm3 1.4 to 1.5
0.92

Common Calculations

Stiffness to Weight: Axial, points 1.5 to 7.9
0.18
Stiffness to Weight: Bending, points 37 to 64
24
Strength to Weight: Axial, points 22 to 42
2.1
Strength to Weight: Bending, points 36 to 57
8.8