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LCP VECTRA®

Producer: Celanese
Polymer type LCP

Vectra® Liquid Crystal Polymers (LCP’s) are a family of high-performance plastics based on patented Celanese technology.

They are distinguished from semi-crystalline 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.

General info

The characteristic property profile and behaviour of liquid crystal polymers Vectra® are so different from those of other resins, that LCP’s are treated as a separate class of polymer. Even so, they can be processed by all conventional methods used for thermoplastics, including injection moulding, extrusion, co-extrusion, blow moulding etc.

LCP Vectra® offers

Vectra® liquid crystal polymers are highly crystalline, thermotropic (melt-orienting) thermoplastics that can deliver exceptionally precise and stable dimensions, high temperature performance and chemical resistance in very thin-walled applications.

  • Excellent dimensional stability
  • Exceptional barrier properties
  • Low coefficient of linear thermal expansion (CLTE)
  • High chemical resistance
  • Good stiffness
  • Very thin walled injection moulding possible
  • Attractive surface finish
  • Good non-stick effect
  • Wide colour versatility

Typical LCP Vectra® applications

The remarkable Vectra® properties have led to the use of Vectra® LCP in many electronic applications such as sockets, bobbins, switches, connectors, chip carriers and sensors.

Portfolio

The Vectra® product line is built around a number of base polymers with different monomer composition. The base polymer differs in their high-temperature resistance, stiffness, toughness and flow properties.

Vectra® glass fibre reinforced grades: Vectra® is available with 15%, 30%, 40% or 50% glass fibre content like Vectra® E130i, an LCP from standard polymer with 30% glass fibre and very good flow ability, or like Vectra® S150, an LCP with the highest heat resistance, 50% glass fibre and very good flow ability.

Vectra® Carbon fibre reinforced grades

These grades give a higher stiffness than with glass fibre filled LCP’s, like Vectra® A230D-3, an LCP filled with 30% carbon fibres.

Vectra® Mineral filled grades

These grades give a high impact strength and elongation at break relative to the glass fibre reinforced grades. In addition they provide an attractive surface finish like Vectra® E540i, an LCP with 40% mineral filler.

Vectra® filler/fibre combination

The PTFE and glass modified grades are used for low-friction and wear resistance applications like Vectra® A435, an LCP with glass fibres and PTFE.

Vectra® graphite filled

Graphite flake provides some added lubricity and exceptionally good hydrolytic stability and chemical resistance like Vectra® A625, an LCP with 25% graphite.

Vectra® Speciality grades

These grades are modified with electrically conductive carbon black which makes them suitable for antistatic applications, like Vectra® A725, an LCP with graphite, PTFE and conductive carbon black.

Other modifications with mineral and/or catalyst are developed for electrodes plating like Vectra® E840i LDS, an LCP with mineral and catalyst filler.

Datasheets

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