PC (Polycarbonate) vs PEEK (unfilled): 0% composition overlap. Significantly different materials serving different application areas.
PC (Polycarbonate) vs PEEK (unfilled)
Side-by-side chemical composition and mechanical property comparison.
Overview
PC (Polycarbonate)
Polycarbonate — the transparent high-impact engineering plastic. Amorphous with outstanding impact strength (virtually unbreakable at room temp), optical clarity (~90% light transmission), and good heat resistance (Tg 145-150°C). Trade names include Lexan (SABIC), Makrolon (Covestro). Used for safety glazing, machine guards, automotive headlamp lenses, CDs/DVDs, riot shields, and electronic housings.
PEEK (unfilled)
Polyetheretherketone — the premium engineering thermoplastic. Exceptional mechanical properties maintained to 260°C continuous use. Resistant to virtually all organic solvents and acids. Biocompatible (ASTM F2026). Used as metal replacement in aerospace, automotive engine parts, medical implants (spinal cages), semiconductor wafer handling, and oil/gas downhole seals.
| PC (Polycarbonate) | PEEK (unfilled) | |
|---|---|---|
| Material Number | — | — |
| Category | Polymers | Polymers |
| Standard | ISO 10350 | ISO 10350 |
Chemical composition (wt%) — Pro
| Element | PC (Polycarbonate) | PEEK (unfilled) | Overlap |
|---|---|---|---|
| Base Polymer (Bisphenol-A Polycarbonate) | 99–99.9% | — | — |
| Base Polymer (Polyether Ether Ketone) | — | 99–99.9% | — |
Mechanical properties — Pro
| Property | PC (Polycarbonate) | PEEK (unfilled) | Unit |
|---|---|---|---|
| Tensile Strength | 55–75 | 90–110 | MPa |
| Yield Strength | 58–65 | ≥ 90 | MPa |
| Elongation | 80–120 | 30–50 | % |
| Elastic Modulus | |||
| Density | |||
| Glass Transition Temp (Tg) | |||
| Water Absorption (24h) | |||
| light_transmission | |||
| Tensile Strength | |||
| Tensile Modulus | |||
| Elongation at Break | |||
| Charpy Impact (notched) | |||
| Density | |||
| HDT/A (1.8 MPa) | |||
| Light Transmission | |||
| Water Absorption (24h) | |||
| Melting Point | |||
| Continuous Use Temp |
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PC (Polycarbonate) and PEEK (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 PC (Polycarbonate) the same as PEEK (unfilled)?
PC (Polycarbonate) and PEEK (unfilled) have a 0% composition overlap. They are generally not directly interchangeable.
Can I replace PC (Polycarbonate) with PEEK (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 PC (Polycarbonate) and PEEK (unfilled)?
The main differences are in the following elements: overall alloying content. PC (Polycarbonate) is a Polymers grade, while PEEK (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.
All data is for reference only. Equivalents indicate similarity, not identity. Always verify against the applicable specification for safety-critical applications. materialref.com accepts no liability for decisions based on this data.