Liquid Crystal Polymer (LCP)

LCP is a thermoplastic material, further classified as a polyester plastic.

It has three common variants, each represented as a separate material.

Material Properties

Density1.4 to 1.6 g/cm3 (87 to 100 lb/ft3)

Elastic (Young's, Tensile) Modulus11 to 24 GPa (1.6 to 3.5 x 106 psi)

Elongation at Break1.0 to 3.0 %

Flexural Modulus9.0 to 23 GPa (1.3 to 3.3 x 106 psi)

Flexural Strength160 to 320 MPa (23 to 46 x 103 psi)

Heat Deflection Temperature At 1.82 MPa (264 psi)240 to 270 °C (460 to 520 °F)

Limiting Oxygen Index (LOI)35 %

Melting Onset (Solidus)280 °C (540 °F)

Specific Heat Capacity1020 to 1200 J/kg-K

Strength to Weight Ratio130 to 140 kN-m/kg

Tensile Strength: Ultimate (UTS)180 to 230 MPa (26 to 33 x 103 psi)

Further Reading

Liquid Crystalline Polymers, Xin-Jiu Wang and Qi-Feng Zhou, 2004

Modern Plastics Handbook, Charles A. Harper (editor), 1999

Plastics Materials, 7th ed., J. A. Brydson, 1999

SPI Plastics Engineering Handbook of the Society of the Plastics Industry, Inc., 5th ed., Michael L. Berins (editor), 2000