PBT-CF40 is a high strength thermoplastic with 40% carbon fiber, offering exceptional mechanical properties, wear resistance, and chemical stability. It performs well in high temperatures (HDT ~280°C) and is ideal for demanding automotive, industrial, and electronic applications.
PBT-CF40 Carbon fiber plastic parts
- Model number: PBT-CF-BCA4
- Matrix Resin: polybutylene terephthalate (PBT）
- Reinforcing Filler: Carbon fiber
- Appearance: Granules
- Grade: Injection/extrusion grade
- Packaging: 25kgs/bag
Mechanical Properties
PBT-CF40 is designed to deliver exceptional mechanical performance, with 40% carbon fiber reinforcement that provides superior stiffness, strength, and wear resistance compared to PBT-CF30 and unreinforced PBT. Its enhanced carbon fiber content makes it ideal for demanding applications subjected to extreme mechanical loads and stress.
Tensile Strength: ≥ 180 MPa
Flexural Strength: ≥ 300 MPa
Impact Strength: ≥ 5.5 kJ/m²
The 40% carbon fiber content significantly improves both stiffness and strength, making PBT-CF40 the ideal material for high performance applications where mechanical properties are crucial.
Thermal and Chemical Resistance
PBT-CF40 retains the excellent thermal and chemical resistance typical of pure PBT, even with the increased carbon fiber content. This makes it highly reliable in environments with high temperatures and exposure to various chemicals.
Heat Deflection Temperature (HDT): Approx. 280°C
Long-Term Service Temperature: Up to 280°C
Chemical Resistance: Outstanding resistance to oils, fuels, solvents, and other common chemicals
PBT-CF40 offers superior thermal and chemical stability, making it suitable for even more demanding environments.
Wear Resistance and Processing
Thanks to its 40% carbon fiber content, PBT-CF40 provides excellent wear resistance and maintains its structural integrity under high friction and stress conditions. It is still easily processed using standard thermoplastic methods.
Wear Resistance: Exceptional under high friction and stress
Processing Methods: Suitable for injection molding and extrusion
With superior wear resistance and processability, PBT-CF40 is ideal for use in heavy duty industrial applications.
Environmental Adaptability
PBT-CF40 features low moisture absorption and outstanding dimensional stability, even under fluctuating environmental conditions, ensuring consistent and reliable performance.
Water Absorption: Low
Dimensional Stability: Excellent, even under high temperature and humidity fluctuations
PBT-CF40 is highly resilient to environmental changes, making it suitable for a wide range of applications.
Applications
PBT-CF40 is specifically engineered for demanding applications that require higher mechanical strength, wear resistance, and chemical resistance. Some common applications include:
Automotive: Parts exposed to extreme mechanical loads, high vibrations, and elevated temperatures.
Industrial Manufacturing: Components like bushings, seals, and electrical parts that endure heavy wear and stress.
Electronics: Housings and connectors that experience mechanical stress and thermal cycling.
Household Appliances: Parts requiring superior strength, wear resistance, and dimensional stability.
Summary Table for PBT-CF40
| Characteristic | Value/Description |
|---|---|
| Carbon Fiber Content | 40% |
| Tensile Strength | ≥ 180 MPa |
| Flexural Strength | ≥ 300 MPa |
| Impact Strength | ≥ 5.5 kJ/m² |
| Heat Deflection Temperature (HDT) | Approx. 280°C |
| Long-Term Service Temperature | Up to 280°C |
| Chemical Resistance | Outstanding |
| Water Absorption | Low |
| Processing Methods | Injection molding, extrusion |
| Wear Resistance | Exceptional under high friction and stress |
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Strength between PBT and PBT-CF
PBT (Polybutylene Terephthalate) is known for its excellent mechanical properties, including good stiffness and strength, but when reinforced with carbon fiber, such as in PBT-CF, these properties are significantly enhanced. The addition of carbon fiber in PBT-CF improves its tensile strength, flexural strength, and impact resistance, making it more durable and resistant to deformation under high mechanical loads. While PBT performs well under moderate stress, PBT-CF is designed for applications requiring higher stiffness, greater structural integrity, and better wear resistance, making it ideal for more demanding environments where enhanced 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.
