PPA-CF50 is a high performance, 50% carbon fiber reinforced polyphthalamide (PPA) thermoplastic, offering metal like stiffness, excellent thermal resistance (HDT ≥ 290 °C), and outstanding chemical durability. Ideal for structural, high load, and high temperature applications in automotive, electronics, and industrial components.
PPA-CF50 Fuel System Components
- Model number: PPA-CF-BCA5
- Matrix Resin: Personal Package Archive (PPA)
- Reinforcing Filler: Carbon fiber
- Appearance: Granules
- Grade: Injection/extrusion grade
- Packaging: 25kgs/bag
PPA-CF50 | 50% Carbon Fiber Reinforced Polyphthalamide
PPA-CF50 is an ultra high performance, semi crystalline engineering thermoplastic reinforced with 50% short carbon fibers. It is designed for maximum mechanical strength, stiffness, and dimensional stability in extreme environments involving mechanical load, high temperatures, and aggressive chemicals.
With an exceptionally high carbon fiber content, PPA-CF50 delivers mechanical properties approaching those of metals, while retaining the excellent thermal and chemical resistance of polyphthalamide (PPA). Compared to lower carbon grades like PPA-CF20, CF30, and CF40, this grade offers significantly enhanced stiffness, creep resistance, and long term thermal performance.
Core Performance Highlights
Mechanical Properties
Carbon Fiber Content: 50% (short chopped fibers, densely packed)
Tensile Strength: ~210–225 MPa
Flexural Modulus: ~20–22 GPa
Elongation at Break: ~0.4–0.7%
Notched Izod Impact: ~25–35 J/m
The high fiber content delivers exceptional load bearing capability and rigidity — ideal for metal replacement parts under demanding structural stress.
Thermal Resistance
Heat Deflection Temperature (HDT): ≥ 290 °C
Continuous Use Temperature: Up to 250 °C
Maintains structural integrity under long term thermal load, ideal for engine compartments, drivetrains, and high voltage components.
Environmental & Chemical Durability
Moisture Absorption: ~0.04–0.08% — ultra low for tight tolerances
Chemical Resistance: Excellent — highly resistant to fuels, oils, acids, bases, coolants, and industrial solvents
Performs reliably in humid, corrosive, and chemically active environments with minimal degradation or dimensional change.
Processing & Manufacturing
Molding Method: Injection molding
Surface Finish: Matte to textured, fiber visibility common
Tooling Requirements: Requires high hardness, wear resistant molds due to aggressive fiber loading
Processing Notes: Lower flowability than CF40 — optimized tool design and processing parameters are essential to achieve proper fiber alignment and mechanical strength.
Target Applications
Automotive & Mobility
Engine brackets, suspension mounts, electric drive housings
Offers high stiffness, chemical resistance, and heat resistance for harsh under the hood and structural uses.
Electronics & Electrical
Motor housings, battery trays, structural EMI/RFI shielding
Maintains form and strength under thermal cycling and vibration, ideal for EV and high power electronics.
Industrial Equipment
Pump structures, robotic frames, actuator components
Designed for continuous mechanical load, tight tolerances, and aggressive chemical exposure.
Performance Summary Table
| Property | Value / Description |
|---|---|
| Carbon Fiber Content | 50% (Short Carbon Fiber Reinforced) |
| Tensile Strength | ~210–225 MPa |
| Flexural Modulus | ~20–22 GPa |
| Elongation at Break | ~0.4–0.7% |
| Notched Izod Impact | ~25–35 J/m |
| Heat Deflection Temp. | ≥ 290 °C |
| Continuous Use Temp. | Up to 250 °C |
| Moisture Absorption | ~0.04–0.08% — ultra low, maintains dimensional control |
| Chemical Resistance | Excellent — fuels, oils, acids, bases, solvents |
| Wear Resistance | Very high — for load bearing, high friction use |
| Processing Method | Injection molding |
| Surface Finish | Matte/textured — visible fiber is typical |
| Dimensional Stability | Exceptional — low creep, low thermal expansion |
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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.
