High-performance 3d Printing Filaments——PEEK

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● Key Properties & Performance

● 3D Printing Requirements

● Applications

PEEK 3D printing filament is a high-performance material renowned for its exceptional properties, making it suitable for demanding industrial applications. Here is a summary of its key characteristics and performance metrics:

Key Properties & Performance

• Thermal Resistance: With a melting point of approximately 343°C and the ability to withstand continuous use at temperatures up to 260°C (with short-term tolerance up to 300°C), PEEK is ideal for high-temperature environments.

• Mechanical Strength: It exhibits high tensile strength (around 100 MPa), stiffness, and impressive impact resistance, often compared to metal alloys.

• Chemical Resistance: PEEK is highly resistant to a wide range of chemicals, including acids, bases, and organic solvents, with the exception of concentrated sulfuric acid.

• Biocompatibility: It is biocompatible, meeting standards like ISO 10993 and USP Class VI, making it suitable for medical implants and devices that require sterilization.

• Flame Retardancy: PEEK is self-extinguishing and complies with UL94 V-0 flame retardancy standards.

• Low Moisture Absorption & Excellent Dimensional Stability: These properties ensure part accuracy and performance even in varying humidity conditions.

• Self-Lubricating & Wear Resistance: Its low friction coefficient makes it excellent for moving parts like bearings and gears without needing additional lubrication.

3D Printing Requirements

Printing with PEEK filament requires specialized equipment and conditions:

• Nozzle Temperature: Typically between 370°C to 440°C.

• Heated Bed Temperature: Generally 120°C to 150°C, with an enclosed heated chamber (around 150°C or higher) often recommended to prevent warping and ensure layer adhesion.

• Print Speed: Usually slow, around 20-40 mm/s, to ensure proper extrusion and layer bonding.

• Filament Drying: Essential before use, typically at 120°C to 150°C for several hours, to remove moisture.

Applications

PEEK filament is widely used in industries such as:

• Aerospace: For lightweight, high-strength components like engine parts and brackets.

• Medical: For implants, surgical instruments, and dental devices due to its biocompatibility and sterilizability.

• Automotive: For under-the-hood components, gears, and bearings requiring heat and chemical resistance.

• Oil & Gas and Chemical Processing: For valves, seals, and pump parts that endure harsh conditions.

In summary, PEEK 3D printing filament offers a unique combination of high thermal stability, mechanical strength, and chemical resistance, but it demands advanced 3D printing capabilities to fully utilize its potential.