PA66-LCF5 is a reinforced polyamide 66 composite containing 5% long carbon fiber, offering improved strength, stiffness, and dimensional stability over standard PA66. With enhanced fatigue resistance and wear performance, it is ideal for lightweight semi-structural components requiring long term durability and thermal resilience.
Long carbon fiber PA66-LCF5 engineering applications
- Model number: PA66-LCF-BCA05
- Matrix Resin: Nylon6 6(Polyamide66) (PA66)
- Reinforcing Filler: Carbon fiber
- Appearance: Granules
- Grade: Injection/extrusion grade
- Packaging: 25kgs/bag
PA66-LCF5: Long Carbon Fiber Reinforced Polyamide 66 for Enhanced Strength and Durability
PA66-LCF5 is a high-performance polyamide 66 (PA66) composite reinforced with 5% long carbon fiber (LCF), delivering enhanced mechanical strength, impact resistance, and dimensional stability compared to both unreinforced PA66 and short fiber reinforced variants. The long carbon fibers provide superior load transfer and fatigue resistance, making PA66 LCF5 a reliable material for lightweight semi structural applications.
Key Mechanical Properties
Tensile Strength: ≥ 95 MPa
Flexural Strength: ≥ 125 MPa
Notched Impact Strength: ≥ 9 kJ/m²
The incorporation of long carbon fibers significantly boosts stiffness and toughness while preserving good impact performance. PA66-LCF5 is well suited for parts subject to cyclic stress or shock loading.
Thermal and Chemical Resistance
Heat Deflection Temperature (HDT): Approx. 125°C
Long Term Service Temperature: Up to 115°C
Chemical Resistance: Excellent resistance to oils, greases, fuels, and weak acids; moderate resistance to alkalis; not recommended for strong oxidizers or concentrated acids
Its elevated thermal resistance and chemical compatibility ensure dependable performance in automotive and industrial settings.
Wear Resistance and Processing
Wear Resistance: Enhanced over both standard PA66 and short fiber filled PA66 CF5
Processing Methods: Injection molding (requires LCF compatible dosing system), compression molding
Processing Notes: Low shear machinery is recommended to preserve fiber length; uniform fiber dispersion is critical for optimal mechanical performance
Environmental Adaptability
Water Absorption: Lower than unreinforced PA66
Dimensional Stability: Improved—offers better consistency across variable temperature and humidity conditions
Thanks to reduced moisture uptake and the reinforcing effect of long fibers, PA66-LCF5 maintains tight tolerances in fluctuating climates.
Typical Applications
PA66-LCF5 is ideal for functional components that require higher strength, wear resistance, and long term dimensional control under mechanical load. Applications include:
Automotive: Interior/exterior brackets, connectors, and supports
Industrial: Lightweight housings, mechanical guides, and wear resistant parts
Electronics: Internal structural frames requiring rigidity
Mechanical Systems: Gears, bushings, and fixtures under moderate to dynamic loads
PA66-LCF5 Performance Overview
This table shows the information of PA66 LCF5
| Property | Value/Description |
|---|---|
| Carbon Fiber Content | 5% (Long Carbon Fiber) |
| Tensile Strength | ≥ 95 MPa |
| Flexural Strength | ≥ 125 MPa |
| Notched Impact Strength | ≥ 9 kJ/m² |
| HDT | Approx. 125°C |
| Long Term Service Temp | Up to 115°C |
| Chemical Resistance | Excellent, except strong acids/oxidizers |
| Water Absorption | Lower than standard PA66 |
| Processing Methods | Injection molding, compression molding |
| Wear Resistance | Higher than unfilled or short fiber PA66 |
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Strength between PA66 and PA66-CF
Compared to unreinforced PA66, PA66-CF (carbon fiber reinforced) offers significantly higher strength and stiffness. The addition of carbon fiber increases tensile and flexural strength, enhances dimensional stability, and reduces deformation under load. While standard PA66 provides good toughness and impact resistance, PA66-CF materials are better suited for structural and high-stress applications where superior mechanical performance is required.
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Frequently Asked Questions
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What are CF Reinforced Thermoplastic Composites?
CF Reinforced Thermoplastic Composites are materials where carbon fibers are incorporated into a thermoplastic matrix. They combine the strength and stiffness of carbon fibers with the processability and recyclability of thermoplastics. For instance, they are used in automotive parts like bumper beams.
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What are the benefits of CF Reinforced Thermoplastic Composites over traditional composites?
The key benefits include faster production cycles, easier recyclability, and better impact resistance. They also offer design flexibility. An example is in the manufacturing of consumer electronics casings where complex shapes can be achieved more easily.
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How are CF Reinforced Thermoplastic Composites processed?
Common processing methods include injection molding, extrusion, and compression molding. Injection molding is widely used for mass production. For example, in the production of small components for the medical industry.
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What industries use CF Reinforced Thermoplastic Composites?
They are utilized in aerospace, automotive, medical, and sports equipment industries. In aerospace, they can be found in interior components. In the medical field, they might be used in prosthetics.
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How does the carbon fiber content affect the properties of the composites?
Higher carbon fiber content generally leads to increased strength and stiffness but may reduce ductility. A moderate content is often balanced for specific applications. For example, a higher content might be preferred in structural parts of a race car.
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What are the challenges in using CF Reinforced Thermoplastic Composites?
Challenges include higher material costs, complex processing equipment requirements, and ensuring uniform fiber dispersion. Issues with adhesion between the fibers and the matrix can also arise. An example is in achieving consistent quality in large-scale production.
