PPA-LCF10 is a high performance polyphthalamide reinforced with 10% long carbon fibers, offering improved impact resistance, fatigue durability, and moderate stiffness (~6–7 GPa). With good thermal stability (HDT ~260 °C) and excellent chemical resistance, it’s ideal for structural parts under dynamic loads or vibration.
PPA-LCF10 High Mechanical Strength
- Model number: PPA-LCF-BCA1
- Matrix Resin: Personal Package Archive (PPA)
- Reinforcing Filler: Carbon fiber
- Appearance: Granules
- Grade: Injection/extrusion grade
- Packaging: 25kgs/bag
PPA-LCF10 | 10% Long Carbon Fiber Reinforced Polyphthalamide
PPA-LCF10 is a high performance, semi-crystalline engineering thermoplastic reinforced with 10% long carbon fibers. Engineered to balance mechanical strength with improved toughness and impact resistance, this material offers enhanced fiber matrix load transfer due to the continuous nature of the long fibers.
Compared to short fiber reinforced grades (like PPA-CF30 or CF50), the long fiber structure in PPA-LCF10 improves impact resistance, fatigue performance, and energy absorption while maintaining good stiffness and dimensional stability. It is ideal for structural parts requiring durability, moderate stiffness, and crack resistance under repeated mechanical or thermal loading.
Core Performance Highlights
Mechanical Properties
Carbon Fiber Content: 10% (long carbon fibers)
Tensile Strength: ~95–110 MPa
Flexural Modulus: ~6–7 GPa
Elongation at Break: ~1.5–2.5%
Notched Izod Impact: ~60–80 J/m
Long fiber reinforcement improves impact toughness and fatigue resistance, making it suitable for dynamic and vibration sensitive structures.
Thermal Resistance
Heat Deflection Temperature (HDT): ~250–260 °C
Continuous Use Temperature: Up to 220 °C
Offers stable thermal performance in moderately high temperature environments without significant loss of mechanical integrity.
Environmental & Chemical Durability
Moisture Absorption: ~0.08–0.12% — low enough for controlled dimensional behavior
Chemical Resistance: Excellent — resists automotive fluids, coolants, oils, acids, and bases
Performs reliably in chemically aggressive environments while maintaining dimensional accuracy and mechanical strength.
Processing & Manufacturing
Molding Method: Injection molding (with long fiber feedstock or pultrusion)
Surface Finish: Matte with possible visible fiber pattern
Tooling Requirements: High strength tooling preferred to handle potential abrasion from long fibers
Processing Notes: Requires shear controlled flow to preserve fiber length and ensure maximum performance.
Target Applications
Automotive & Mobility
Instrument panel reinforcements, brackets, battery trays
Long fiber structure offers strength and resilience for components exposed to vibration and fatigue.
Electronics & Electrical
Structural parts in connectors, motor housings, and frames
Good strength and dimensional control under moderate heat and chemical exposure.
Industrial Equipment
Covers, housings, and non load bearing support components
Improved durability over short fiber materials for repeated use and mechanical cycling.
Performance Summary Table
| Property | Value / Description |
|---|---|
| Carbon Fiber Content | 10% (Long Carbon Fiber Reinforced) |
| Tensile Strength | ~95–110 MPa |
| Flexural Modulus | ~6–7 GPa |
| Elongation at Break | ~1.5–2.5% |
| Notched Izod Impact | ~60–80 J/m |
| Heat Deflection Temp. | ~250–260 °C |
| Continuous Use Temp. | Up to 220 °C |
| Moisture Absorption | ~0.08–0.12% — low, maintains shape and tolerance |
| Chemical Resistance | Excellent — oils, fuels, acids, bases, solvents |
| Wear Resistance | Moderate — improved over neat resin |
| Processing Method | Injection molding with long fiber compatibility |
| Surface Finish | Matte — may show fiber pattern |
| Dimensional Stability | High — with good fatigue and impact durability |
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Strength between PPA and PPA-CF
PPA-CF (carbon fiber reinforced) offers significantly higher mechanical strength and rigidity compared to standard PPA. The addition of carbon fiber enhances tensile strength, flexural strength, and wear resistance, making PPA-CF more suitable for heavy loads and extreme environments. While standard PPA is suitable for medium-load and conventional applications, PPA-CF provides superior performance for more demanding industrial conditions.
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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.
