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PPE vs. PBT

Both PPE and PBT are thermoplastics. There are 14 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 PPE and the bottom bar is PBT.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 2.3
2.7 to 8.7
Elongation at Break, % 30
2.5 to 43
Flexural Strength, MPa 75
79 to 210
Tensile Strength: Ultimate (UTS), MPa 55
58 to 140

Thermal Properties

Glass Transition Temperature, °C 85
40
Heat Deflection Temperature At 1.82 MPa (264 psi), °C 120
4.0
Maximum Temperature: Autoignition, °C 430
380
Melting Onset (Solidus), °C 260
230
Specific Heat Capacity, J/kg-K 1200
1040 to 1200

Otherwise Unclassified Properties

Density, g/cm3 1.1
1.3 to 1.5

Common Calculations

Stiffness to Weight: Axial, points 1.2
1.1 to 3.2
Stiffness to Weight: Bending, points 42
35 to 45
Strength to Weight: Axial, points 14
12 to 25
Strength to Weight: Bending, points 30
25 to 38