eFunda Polymers: Listing of Liquid Crystal Polymer (Vectra, Xydar)
engineering fundamentals Liquid Crystal Polymer
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Introduction

Liquid Crystal Polymer, also known as LCP, has been mass-produced since 1980.
  - It is a thermoplastic.
- Applications: Used in high-performance engineering applications such as electrical connectors and machine parts. Applications include surgical devices, and some LCP's meet the standards of USP Class VI.
- General properties: It has excellent strength yet is expensive. Good high temperature properties, can be used in thin walls (as thin as 0.2 mm). Parts can withstand vapor phase reflow and autoclaving temperatures of 135 ºC. High chemical resistance and flame retardancy. Very low coefficient of thermal expansion. High tensile modulus from 10 to 24 GPa.
- Trade Name: Vectra, Xydar.

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Specific Grades of Liquid Crystal Polymer
1. Liquid Crystal Polymer, 45% glass fiber reinforced, HDT.
2. Liquid Crystal Polymer, 40% glass fiber reinforced.
3. Liquid Crystal Polymer, 30% mineral filled.
4. Liquid Crystal Polymer, glass fiber reinforced, used for SMT.
5. Liquid Crystal Polymer, unfilled, medium melting point.
6. Liquid Crystal Polymer, 30% carbon fiber reinforced.
7. Liquid Crystal Polymer, 50% mineral filled.
8. Liquid Crystal Polymer, 30% glass fiber reinforced.
9. Liquid Crystal Polymer, 30% glass fiber reinforced, high HDT.
10. Liquid Crystal Polymer, unfilled, platable grade.
11. Liquid Crystal Polymer, PTFE filled.
12. Liquid Crystal Polymer, 15% glass fiber reinforced.
13. Liquid Crystal Polymer, glass / mineral filled.

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