LCP (Liquid Crystal Polymer) vs PPS (unfilled): 0% composition overlap. Significantly different materials serving different application areas.
LCP (Liquid Crystal Polymer) vs PPS (unfilled)
Side-by-side chemical composition and mechanical property comparison.
Overview
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.
PPS (unfilled)
Polyphenylene Sulfide — semi-crystalline high-performance thermoplastic. Broadest chemical resistance of any engineering plastic — no known solvents below 200°C. Inherently flame-resistant (V-0 without additives, LOI 44%). Very low moisture absorption (<0.02%). Brittle in unfilled form — usually glass-fiber reinforced for structural use. Trade names include Ryton (Solvay), Fortron (Celanese), Torelina (Toray), Durafide (Polyplastics). Used for chemical pump components, filter bags, electrical insulation, and as base resin for GF40 compounds.
| LCP (Liquid Crystal Polymer) | PPS (unfilled) | |
|---|---|---|
| Material Number | — | — |
| Category | Polymers | Polymers |
| Standard | ISO 527-1 | ISO 10350 |
Mechanical properties
| Property | LCP (Liquid Crystal Polymer) | PPS (unfilled) | Unit |
|---|---|---|---|
| tensile_strength | 130–190 | 65–85 | MPa |
| elongation | 2–4 | 3–6 | % |
| e_modulus | 9000–17000 | 3.4–4 | MPa |
Compatibility Assessment
LCP (Liquid Crystal Polymer) and PPS (unfilled) have significantly different compositions (0% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is LCP (Liquid Crystal Polymer) the same as PPS (unfilled)?
LCP (Liquid Crystal Polymer) and PPS (unfilled) have a 0% composition overlap. They are generally not directly interchangeable.
Can I replace LCP (Liquid Crystal Polymer) with PPS (unfilled)?
Generally not recommended. The compositions differ significantly (0% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between LCP (Liquid Crystal Polymer) and PPS (unfilled)?
The main differences are in the following elements: overall alloying content. LCP (Liquid Crystal Polymer) is a Polymers grade, while PPS (unfilled) is a Polymers grade.
Related Comparisons
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Data provided for reference only. Always verify against the applicable specification for critical applications.
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