What is PP LCF30 material?
LFT-G® PP LCF30 is a 30% long carbon fiber reinforced polypropylene engineered for high stiffness, superior heat resistance, and excellent fatigue performance. Its lightweight nature and dimensional stability offer a cost-effective metal replacement solution for automotive and industrial structural applications.
Performance Highlights
High Stiffness & Tensile Strength
Excellent Heat Deflection
Low Moisture Absorption
Minimal Warpage & Lightweight
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⭐ Long carbon fiber delivers exceptional load-bearing capacity and rigidity.
⭐ Robust fiber network ensures lasting creep resistance and stable dimensions.
⭐ Withstands high temperatures without compromising mechanical performance.
⭐ Outstanding fatigue life under repeated stress – ideal for dynamic applications.
Long Carbon vs Short Carbon – PP LCF30 Performance
Comparison between LFT-G® PP LCF30 (long carbon fiber, 30%) and standard PP + 30% short carbon fiber. Long carbon fiber delivers superior modulus, thermal stability, and fatigue resistance.
PP LCF30 Processing Essentials
| Property | Typical Value | Test Standard |
|---|---|---|
| Specific Gravity | 1.02 g/cm³ | ASTM D-792 |
| Molding Shrinkage | 0.10 - 0.30% | ASTM D-955 |
| Tensile Strength | 123 MPa | ISO 527 |
| Tensile Modulus | 18369 MPa | ISO 527 |
| Tensile Elongation | 0.5 - 1.4 % | ISO 527 |
| Flexural Strength | 152 MPa | GB/T 9341 |
| Flexural Modulus | 12696 MPa | GB/T 9341 |
| Notched Izod Impact | 43 kJ/m² | ISO 180 |
| Notched Charpy Impact | 41 kJ/m² | ISO 179 |
Processing Guidelines – Injection Molding
Pre-drying
Dry at 90-110°C for 3-4h with desiccant dryer.Moisture <0.01% prevents hydrolysis.
Injection Parameters
Melt: 210-240°CMold: 40-60°C
Injection pressure: 80-115 MPa
Slow to moderate speed.
Tooling Design
Low-compression screw, full round runners, large gates.L/D ratio 18:1 to 24:1, clamp force >100T.
Melt Temperature
210 – 240°C
Mold Temperature
40 – 60°C
Injection Pressure
80 – 115 MPa
Back Pressure
Low to moderate
Where PP LCF30 Excels
LFT-G® PA6 LGF40TA delivers metal replacement potential and mechanical robustness in demanding sectors:
Aerospace & Drone Structural Frames
LFT-G® PP LCF30 delivers an outstanding stiffness-to-weight ratio for UAV arms and landing gear, effectively damping vibration to enhance flight stability. It resists UV radiation and temperature extremes, ensuring long-term durability in outdoor missions.
High-End Sports Equipment – Bicycle & Ski
LFT-G® PP LCF30 provides the rigidity and impact strength needed for bike linkages, pedal bodies, and ski binding plates, with excellent fatigue resistance under repetitive loads. Its low-temperature toughness prevents brittle failure in winter sports; it reduces overall equipment weight without compromising control or safety.
Precision Robotics & Automation End-Effectors
LFT-G® PP LCF30 ensures dimensional stability in gripper jaws and sensor housings, with low moisture absorption preventing calibration drift in humid conditions. Its high flexural modulus provides the rigidity required for heavy workpieces, while its damping properties reduce oscillations during high-speed operations.
FAQ
A: LFT-G® PP LCF30 offers a lightweight alternative to metal with outstanding rigidity and thermal stability, thanks to its long carbon fiber network. It also enables complex, cost-effective injection molding designs that are difficult to achieve with metal fabrication.
A: The long carbon fibers in PP LCF30 create a continuous reinforcing network, delivering superior stiffness, impact resistance, and fatigue life compared to short‑fiber grades. This translates into better heat deflection and lower warpage, making it suitable for demanding engineering applications.
A: Proper drying is critical to prevent moisture‑related defects, and using a low‑compression screw with large gates helps preserve fiber length. Maintaining recommended melt and mold temperatures ensures good flow and surface finish while maximizing the material's mechanical potential.
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