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PMP vs. PBT

Both PMP and PBT are thermoplastics. There are 11 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.

For each property being compared, the top bar is PMP and the bottom bar is PBT.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 1.1
2.7 to 8.7
Elongation at Break, % 30
2.5 to 43
Tensile Strength: Ultimate (UTS), MPa 24
58 to 140

Thermal Properties

Glass Transition Temperature, °C 30
40
Melting Onset (Solidus), °C 230
230
Specific Heat Capacity, J/kg-K 1750
1040 to 1200

Otherwise Unclassified Properties

Density, g/cm3 0.83
1.3 to 1.5

Common Calculations

Stiffness to Weight: Axial, points 0.74
1.1 to 3.2
Stiffness to Weight: Bending, points 41
35 to 45
Strength to Weight: Axial, points 8.0
12 to 25
Strength to Weight: Bending, points 22
25 to 38