Liquid-crystalline polymer (LCP)

Alternative and trade names
Vectra®, TECACOMP®, TECACOMP®
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Description

It is a family of halogen-free, high-performance polymers that provide high-temperature performance in eco-friendly thin-wall applications with exceptionally precise and stable dimensions. The key features are:


  • Service temperature up to 240°C, short term up to 340°C
  • Very close tolerances possible (to tolerance class T6)
  • Very low heat of fusion (short cycle times possible)
  • Flash-free injection molding
  • Very high tensile strength (to 200 MPa) and tensile modulus (to 30,000 MPa)
  • Very low coefficient of thermal expansion comparable with that of steel and ceramics
  • Inherently flame-resistant (UL 94 V-0, some grades with 5 VA)
  • Halogen-free without additives
  • Very good resistance to chemicals and oxidation

  • These highly crystalline, thermotropic (melt-orienting) thermoplastics are distinguished from semicrystalline plastics by their special molecular structure, which consists of rigid, rod-like macromolecules that are ordered in the melt phase to form liquid crystal structures.

    This material data has been provided by M-Base.

    All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
    Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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    Properties

    General

    PropertyValue

    Density

    1.38 - 1.94 g/cm³

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    Mechanical

    PropertyValueComment

    Elastic modulus

    10.0 - 24.3 GPa

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    Elongation

    1.3 - 3.4 %

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    Impact strength, Charpy notched

    2.0 - 18.0 kJ/m²

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    Impact strength, Charpy unnotched

    3.7 kJ/m²

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    29 kJ/m²

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    Tensile strength

    110.0 - 182.0 MPa

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    at 1.3-3.4% strain

    Thermal

    PropertyValue

    Coefficient of thermal expansion

    0.0 - 4.2e-05 1/K

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    Melting point

    280.0 - 335.0 °C

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    Flammability

    UL 94 V0

    Electrical

    PropertyValue

    Dielectric constant

    3.2 [-]

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    4.8 [-]

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    Electrical resistivity

    100000000000000 Ω·m

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    Optical

    PropertyValue

    Transparency

    no

    Technological properties

    Property
    Application areas

    connectors for PC, baking pans, casserole dishes

    Other

    You are viewing a generic polymer page, for more information please contact the suppliers or Matmatch, or use our Search under the following link to find more specific grades and formulations based on your application:

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    Processing methods

    Injection molding, extrusion, thermoforming