For engineering frontiers where weight reduction is critical but structural rigidity cannot be compromised, LFT-G® PA66 CF50 (Model: BC05B) is the definitive material choice. This represents the apex of thermoplastic composites: a Polyamide 66 matrix reinforced with a massive 50% Long Carbon Fiber load, designed to directly replace aerospace-grade aluminum and zinc alloys.
Engineers searching for PA66 CF50 often encounter a problem: standard Short Carbon Fiber compounds at this loading level become incredibly brittle. LFT-G® overcomes this physics barrier using Long Carbon Fiber (LCF) technology. By creating an entangled 3D skeletal network of 10-12mm fibers, we deliver a material with a Tensile Modulus exceeding 33 GPa while retaining the impact resistance necessary for dynamic industrial machinery.
Technical Data Sheet (Model: LFT-G® PA66-BC05B)
| Property | Test Standard | Unit | Typical Value |
|---|---|---|---|
| Base Resin | - | - | Polyamide 66 (PA66) |
| Fiber Content | ISO 1172 | % | 50% Long Carbon Fiber |
| Density | ISO 1183 | g/cm³ | 1.33 |
| Tensile Strength | ISO 527 | MPa | 290 - 310 |
| Tensile Modulus | ISO 527 | GPa | 33.0 - 36.0 |
| Flexural Strength | ISO 178 | MPa | 400 - 420 |
| HDT (1.80 MPa) | ISO 75 | °C | 254 |
| Volume Resistivity | IEC 60093 | Ω·cm | < 200 |
Why LFT-G® Long Carbon Fiber?
Aerospace Performance at Industrial Pricing.
50% carbon fiber composites are traditionally reserved for aerospace due to extreme costs. LFT-G® democratizes this material by utilizing a premium domestic supply chain:
- Domestic T700 Power: We use domestic carbon fiber that achieves 98% of the modulus of imported Tenax/Toray fibers but allows us to price the final compound 30-40% lower.
- Supply Stability: Immune to international import quotas on high-grade carbon, ensuring your mass production (drones, pumps, robots) is never halted.
- Zero "Dry Fiber": Our advanced impregnation die ensures that even at 50% density, every filament is coated in PA66, preventing delamination.
Aerospace Std / Industrial Cost
Applications: The "Black Aluminum" Era
Processing Note: 50% Fiber Challenges
Expert Molding Guide:
- Gate Size: Critical! Use large gates (min 2.5mm x 5.0mm) to prevent fiber clogging and breakage.
- Venting: High injection speeds are needed to fill thin walls. Maximize venting to prevent diesel effect (burning).
- Drying: PA66 is hygroscopic. Dry at 85°C for 5-6 hours. Moisture < 0.2%.
People Also Ask (PAA)
Q: Can PA66 CF50 replace 7075 Aluminum?
A: In specific stiffness, yes. While 7075 Aluminum has a modulus of ~70 GPa, PA66 CF50 (~35 GPa) is half the weight. By designing ribs and thicker walls, you can achieve a part that is lighter than aluminum with equivalent structural rigidity.
Q: Is 50% carbon fiber plastic too brittle?
A: Short fiber compounds are brittle at 50%. However, LFT-G® Long Fiber technology creates an entangled network that stops crack propagation. This retains surprisingly high impact strength (Charpy > 25 kJ/m²) despite the extreme stiffness.
Q: Is this material conductive?
A: Highly conductive. With 50% carbon volume, it exceeds the percolation threshold. It acts as a conductor (Volume Resistivity < 100 Ohm-cm), suitable for grounding and EMI shielding, but not for electrical insulation.
Push the Limits of Thermoplastics
When metal is too heavy and standard plastic is too weak. Partner with LFT-G®.
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