PPA-LCF30 is a high performance polyphthalamide reinforced with 30% long carbon fibers, offering excellent tensile strength (~155–170 MPa), high stiffness (~12–14 GPa), and reliable impact resistance. With superior thermal stability (HDT ~280 °C) and chemical resistance, it’s ideal for structural components in automotive, electronics, and industrial applications where metal replacement and long term durability are critical.
Dimensionally Stable PPA-LCF30
- Model number: PPA-LCF-BCA3
- Matrix Resin: Personal Package Archive (PPA)
- Reinforcing Filler: Carbon fiber
- Appearance: Granules
- Grade: Injection/extrusion grade
- Packaging: 25kgs/bag
PPA-LCF30 | 30% Long Carbon Fiber Reinforced Polyphthalamide
PPA-LCF30 is a high performance, semi crystalline engineering thermoplastic reinforced with 30% long carbon fibers, designed for maximum strength, stiffness, and fatigue resistance. The extended fiber length enables superior load transfer through the polymer matrix, significantly improving structural integrity and energy absorption over short fiber-reinforced grades.
With increased carbon fiber loading compared to PPA-LCF20 or PPA-CF40, PPA-LCF30 delivers near metal mechanical performance while preserving the excellent chemical and thermal resistance of polyphthalamide (PPA). This material is well suited for structural applications where sustained mechanical loading, thermal cycling, and chemical exposure are present — particularly in mobility, electrification, and industrial environments.
Core Performance Highlights
Mechanical Properties
Carbon Fiber Content: 30% (long carbon fibers for optimal structural reinforcement)
Tensile Strength: ~155–170 MPa — significantly enhanced structural capability
Flexural Modulus: ~12–14 GPa — very high stiffness for demanding load conditions
Elongation at Break: ~0.8–1.2% — improved over short fiber grades in strength toughness balance
Notched Izod Impact: ~60–80 J/m — strong resistance to impact and mechanical shock
The high long fiber content improves load bearing strength and fatigue resistance in critical applications where durability and mechanical resilience are key.
Thermal Resistance
Heat Deflection Temperature (HDT): ~270–280 °C
Continuous Use Temperature: Up to 240 °C
Provides stable mechanical performance in elevated temperature environments, making it ideal for powertrain, EV battery enclosures, and heat-exposed industrial components.
Environmental & Chemical Durability
Moisture Absorption: ~0.05–0.08% — low absorption for excellent dimensional stability
Chemical Resistance: Excellent — resists fuels, oils, acids, bases, coolants, and cleaning agents
Performs reliably in chemically aggressive and high humidity environments, maintaining mechanical and dimensional performance over extended service life.
Processing & Manufacturing
Molding Method: Injection molding (optimized for long fiber feedstock)
Surface Finish: Matte with visible fiber pattern — typical for long fiber composites
Tooling Requirements: Abrasion resistant, hardened steel tooling strongly recommended due to increased fiber wear
Processing Notes: Requires careful shear management to preserve fiber length and ensure full mechanical properties; lower flowability than lower fiber grades.
While more processing intensive than short fiber versions, PPA-LCF30 rewards optimized mold design and process control with superior mechanical performance.
Target Applications
Automotive & Mobility
Applications: Battery module carriers, crash structure components, engine supports, suspension brackets
Replaces metal in highly loaded parts that must withstand long term fatigue, heat, and chemical exposure.
Electronics & Electrical
Applications: Motor housings, inverter enclosures, structural EMI/RFI shielding
Delivers rigidity, chemical durability, and dimensional stability in thermal and vibrational environments.
Industrial Equipment
Applications: Precision load frames, robotic arms, heavy duty pump casings
Combines stiffness and fatigue resistance for high load mechanical systems operating in harsh industrial conditions.
Performance Summary Table
| Property | Value / Description |
|---|---|
| Carbon Fiber Content | 30% (Long Carbon Fiber Reinforced) |
| Tensile Strength | ~155–170 MPa |
| Flexural Modulus | ~12–14 GPa |
| Elongation at Break | ~0.8–1.2% |
| Notched Izod Impact | ~60–80 J/m |
| Heat Deflection Temp. | ~270–280 °C |
| Continuous Use Temp. | Up to 240 °C |
| Moisture Absorption | ~0.05–0.08% — low, excellent dimensional stability |
| Chemical Resistance | Excellent — fuels, oils, acids, bases, solvents |
| Wear Resistance | High — well-suited for structural and frictional applications |
| Processing Method | Injection molding with long fiber compatibility |
| Surface Finish | Matte — visible fibers common |
| Dimensional Stability | Outstanding — low creep and high load retention |
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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.
