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LDPE vs. PAI

Both LDPE and PAI are thermoplastics. There are 15 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 0.3
4.0 to 8.3
Tensile Strength: Ultimate (UTS), MPa 7.0
100 to 180

Thermal Properties

Glass Transition Temperature, °C -130
280
Maximum Temperature: Autoignition, °C 380
530
Maximum Temperature: Decomposition, °C 400
490
Specific Heat Capacity, J/kg-K 2300
910 to 1000
Thermal Conductivity, W/m-K 0.36
0.26 to 0.53
Thermal Expansion, µm/m-K 220
15 to 34

Otherwise Unclassified Properties

Density, g/cm3 0.92
1.4 to 1.6

Common Calculations

Stiffness to Weight: Axial, points 0.18
1.6 to 3.2
Stiffness to Weight: Bending, points 24
38 to 47
Strength to Weight: Axial, points 2.1
19 to 34
Strength to Weight: Bending, points 8.8
33 to 49
Thermal Diffusivity, mm2/s 0.17
0.16 to 0.41
Thermal Shock Resistance, points 7.6
48 to 110