CARBONXTM CF-PEI Filament (Made using Ultem PEI)

3DXTECH manufactures CarbonX Carbon Fiber Reinforced PEI (Polyether Imide) using a custom-formulated compound made from ULTEM™ 1010 PEI resin and high-modulus carbon fiber. PEI is an amorphous, high-performance polymer that offers excellent mechanical, thermal, and chemical resistance properties.

This PEI based filament offers the ability to create parts with excellent properties even at elevated temperatures, thanks to a high glass transition temperature (Tg) of 217°C. The addition of high modulus carbon fiber reinforcement greatly increases the stiffness and modulus of the PEI material as well as improving the dimensional stability during and after 3D printing.

Benefits of ULTEM PEI+CF Include:

• High thermal properties, with a Tg of 217°C
• Inherently flame-resistant with low smoke evolution and low smoke toxicity
• Long-term hydrolytic stability
• Excellent dimensional stability, low heat creep sensitivity, and a very low, uniform coefficient of thermal expansion create highly reproducible part-to-part dimensions
• Exceptional strength and modulus, even at elevated temperatures
• Good resistance to a broad range of chemicals, include automotive fluids, fully halogenated hydrocarbons, alcohols, and aqueous solutions
• Stable dielectric constant and dissipation factor over a wide range of temperatures and frequencies

Typical Applications of PEI+CF Ultem 1010:

Aerospace:

The excellent balance of flame retardancy, low smoke emission, and low smoke toxicity of ULTEM PEI+CF makes it an excellent candidate for aerospace and aircraft applications. ULTEM offers low toxicity, smoke, and flame evolution. Ultem resins are found in applications such as personal service units, oxygen panels and components, ventilation system components, connectors, cable ducts, latches, hinges, food tray containers, door handles, and interior cladding parts.

Automotive & Transportation:

PEI+CF resins provide automotive manufacturers with a high performance, chemically resistant, thermally-stable, cost-effective alternative to metal that is strong enough to replace steel in some applications yet light enough to replace aluminum in others. For applications like transmission components, throttle bodies, ignition components, sensors, and thermostat housings.

Electronics:

PEI+CF may be an excellent material choice for today’s demanding electrical applications, including connectors, MCB components like housings, shafts and levers, hard disk drive internals, FOUPs, BiTS, PCBs, MCCB internals, Plenum devices, LCD projector internals, fuel cell components, and many other applications.

Filament Specifications:

1.75mm +/- 0.05mm in diameter

Recommended Print Settings:

• Extruder: 360-390°C
• Bed Temp: 140-160°C
• Nozzle: We currently recommend using one of our abrasion-resistant Vanadium™ Nozzles with a minimum diameter of 0.4mm.
• Other: Ideal layer height is 60% of nozzle diameter. We do not recommend printing layers smaller than 0.2mm with carbon fiber reinforced filaments
• Bed Prep: Nano Polymer Adhesive and 3DXTECH Polyimide Tape gives us the best results
• Heated Chamber: Recommended
• Supports: ThermaX™ HTS High-Temp Support is designed to work with complex, high-temp materials
• Drying Instructions: 120°C for 4 hours

ULTEM™ is a registered trademark of Sabic Innovative Plastics