Introduction to Carbon Fiber PC-PBT Filament: Performance Without Compromise
In the world of professional additive manufacturing, material choice is everything. To overcome the limitations of standard polymers and create functional components that withstand high mechanical and thermal stress, advanced engineering solutions are required. It is in this context that our Carbon Fiber PC PBT Filament (PC-PBT CF Black) from the Stampatreddi brand stands out as the material of choice. This is not just a filament, but a high-performance composite material, engineered to solve complex industrial challenges and turn projects into durable, high-performing realities.
What is Carbon-Fiber-Reinforced PC-PBT Blend?
To fully understand the potential of this material, it is essential to analyze its composition.
The filament originates from a carefully engineered blend of two high-performance polymers: Polycarbonate (PC) and Polybutylene Terephthalate (PBT).
- Polycarbonate (PC): Renowned for its exceptional toughness, impact resistance, and high-temperature stability.
- Polybutylene Terephthalate (PBT): Valued for its high stiffness, chemical resistance, and dimensional stability.
The combination of these two materials creates a synergy that enhances their respective strengths.
But the real revolution lies in the addition of carbon fiber.
These fibers, embedded in the polymer matrix, act as microscopic reinforcement, giving the material exceptional stiffness and mechanical strength far superior to that of the base polymers.
The result is an FFF 3D-printing filament that combines the toughness of PC, the stability of PBT, and the rigidity of carbon fiber.
Every Stampatreddi filament spool is a premium product, designed and manufactured in Italy from ultra-pure raw materials to ensure consistent quality and reliable performance, batch after batch.
Technical Properties Analysis: The Numbers That Matter
The performance of an industrial material is measured with precise data. Let’s examine the typical values, obtained from injection-molded test specimens according to ISO standards, to understand what makes this material so special.
Superior Mechanical Properties
When a component must withstand loads, bending, and impacts, mechanical data is crucial.
- Tensile Modulus: At 10,200 MPa, this material exhibits exceptional stiffness. In practical terms, printed parts are extremely resistant to bending and retain their shape even under high loads—an essential characteristic for structural applications.
- Tensile Strength at Break: The material can withstand a stress of 125 MPa before rupture. This high strength makes it ideal for producing parts that must endure significant loads without failure.
- Charpy Impact Resistance: The value of 30 kJ/m² (un-notched) indicates a good ability to absorb energy from sudden impacts, a key factor for components subjected to shocks or vibrations.
Thermal Resistance for Demanding Environments
The ability to operate in hot environments without deforming is another fundamental characteristic.
- HDT (Heat Deflection Temperature): The material exhibits an HDT of 201 °C under a low load (0.45 MPa) and 142 °C under a higher load (1.81 MPa). These values indicate that printed parts can be used near heat sources or in automotive applications where operating temperatures are a critical factor.
- Vicat Softening Point: With a softening point of 177 °C, the material retains its structural integrity at temperatures where many other engineering polymers would already have failed.
Real-World Applications: Where PC-PBT CF Makes the Difference
Thanks to its combination of rigidity, mechanical strength, and thermal stability, PC PBT Carbon Fiber Filament is the solution for a wide range of industrial applications.
- Functional Prototyping: Produce prototypes that are not only visually accurate but also functionally testable under real operating conditions, accelerating the product development cycle.
- Jigs, Fixtures and Production Tooling: Create assembly fixtures, drilling templates and lightweight yet robust supports with excellent dimensional stability. Their low weight (1.31 g/cm³ density) improves operator ergonomics compared to metal alternatives.
- Metal Replacement: In many scenarios, components made of aluminum or other lightweight metals can be successfully replaced. This enables significant weight reduction, greater design freedom, and supply-chain simplification by printing parts on demand.
- End-Use Components: Produce final parts for the automotive sector (brackets, supports, engine-bay components), industrial automation (gripper arms, sensor mounts), robotics and drones, where the stiffness-to-weight ratio is critical.
3D Printing Guide: Parameters for Success
To fully leverage the potential of an engineering-grade material, it’s essential to start off on the right foot. Here are our recommendations, based on the manufacturer’s technical data sheet.
- Drying: The Mandatory Step
Like many technical polymers, this material is hygroscopic, meaning it tends to absorb moisture from the environment. Printing filament that has not been properly dried compromises surface quality and mechanical properties. It is imperative to dry the material for at least 4 hours at 100 °C before use; at lower temperatures, the drying cycle must be extended. - Recommended Print Settings
These values are an excellent starting point for most professional 3D printers:- Nozzle Temperature: 265 °C
- Bed Temperature: 60°C
- Print Speed: Do not exceed 100 mm/s
Remember that every printer has its own characteristics. Start from these values and feel free to experiment to optimize the result. The 3DBooster team is always available to provide support and tailored advice based on your equipment.
3DBooster: Your Partner for Innovation
Choosing a product from our 3DBooster e-commerce means far more than a simple purchase. It means relying on a partner who believes in quality, innovation, and customer support. We offer only high-performance materials, manufactured in Europe to rigorous standards, because we know your projects deserve the very best. Our mission is to provide not just products, but concrete solutions and expert assistance to help you overcome every challenge.
Ready to elevate the performance of your 3D-printed parts? Choose the quality and reliability of our Carbon Fiber PC PBT Filament.
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