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LCP vs. PBT

Both LCP and PBT are thermoplastics. There are 15 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 11 to 24
2.7 to 8.7
Elongation at Break, % 1.0 to 3.0
2.5 to 43
Flexural Modulus, GPa 9.0 to 23
2.6 to 9.1
Flexural Strength, MPa 160 to 320
79 to 210
Tensile Strength: Ultimate (UTS), MPa 180 to 230
58 to 140

Thermal Properties

Heat Deflection Temperature At 1.82 MPa (264 psi), °C 240 to 270
4.0
Maximum Temperature: Decomposition, °C 520
380
Melting Onset (Solidus), °C 280
230
Specific Heat Capacity, J/kg-K 1020 to 1200
1040 to 1200

Otherwise Unclassified Properties

Density, g/cm3 1.4 to 1.6
1.3 to 1.5
Limiting Oxygen Index (LOI), % 35
20

Common Calculations

Stiffness to Weight: Axial, points 4.4 to 8.9
1.1 to 3.2
Stiffness to Weight: Bending, points 51 to 65
35 to 45
Strength to Weight: Axial, points 33 to 43
12 to 25
Strength to Weight: Bending, points 45 to 56
25 to 38