LCP (Liquid Crystal Polymer)
Liquid Crystal Polymer — self-reinforcing aromatic polyester with outstanding flow into thin walls (<0.2mm). Extremely low moisture absorption (0.02%), minimal warpage, excellent dimensional stability. Near-zero creep. Inherently flame-retardant (V-0 at 0.2mm). Very high HDT (>270°C). Trade names: Vectra (Celanese), Zenite (DuPont), Siveras (Toray). THE micro-connector and SMT-reflow-compatible polymer. Used for SMD connectors, fiber optic ferrules, chip carriers, sensors, and ultra-thin-wall electronic housings.
Chemical composition comparison (wt%)
Side-by-side: LCP (Liquid Crystal Polymer) (COMPOSITION) (ISO 16396) vs ASTM
| Element | LCP (Liquid Crystal Polymer) (COMPOSITION) | ASTM | Overlap |
|---|---|---|---|
| Base Polymer (Thermotropic Liquid Crystal Polymer) | 99–99.9% | — | — |
Mechanical properties
Standard Unfilled
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | 130–190 | MPa |
| Elongation | 2–4 | % |
| Elastic Modulus | 9000–17000 | MPa |
| Density | 1.35–1.4 | g/cm3 |
| hdt_1.8mpa | 240–280 | °C |
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