FAQ

A：The Recycled Carbon Fiber (RCF) currently used in our plastic pellets has a D50 (median fiber length) of approximately 0.2–0.3 mm, with a maximum length of up to 0.6 mm. We are also developing new products with a D50 of around 0.4–0.5 mm and a maximum length of up to 1.2 mm to meet a wider range of application needs.

A：Yes, we can tailor our products to meet specific customer needs. For example, we have already collaborated with clients to develop low-temperature toughened compounds. Material formulations can be adjusted to achieve targeted mechanical properties or processing characteristics as required.

A：Yes. Thermolysis’s recycled carbon fibers undergo thermal pyrolysis purification, which removes both the original resin and surface sizing. After purification, we apply physical surface treatment and, when necessary, chemical modification tailored to the target resin. This ensures that our recycled carbon fiber pellets deliver excellent mechanical performance and resin compatibility.

A：Our recycled carbon fiber pellets offer several key advantages:

• High Performance: Comparable in strength to virgin carbon fiber (VCF), making them a viable high-performance alternative.
• Sustainability: Aligned with global carbon reduction and environmental goals, helping companies advance their sustainability strategies.
• Customization: We offer collaborative development of specialized product lines, delivering tailored solutions to meet the needs of various industries.

A：Yes. In 2022, we obtained UL 2809 certification for recycled content verification, ensuring a fully transparent and traceable supply chain for our recycled materials. This confirms that the carbon fiber we process is indeed from verified recycled sources. 

Thermolysis is also the first company in Taiwan to receive both approval from the Ministry of Economic Affairs for carbon fiber reuse and verification from the Environmental Protection Administration (EPA). This not only ensures a stable supply but also affirms our legal qualifications.
To meet diverse application needs, we classify our recycled carbon fiber based on different grades and standards. A robust quality control system is in place at our facility to guarantee consistent material properties in every batch of plastic pellets—ensuring high and stable product performance for our clients.

A：Our standard quality inspection covers key mechanical properties, including:

• Tensile strength
• Flexural strength
• Impact strength

Additional tests can be conducted upon request, such as:

• Heat Deflection Temperature (HDT)
• Electrical resistivity
• Other specific property evaluations tailored to customer requirements

A：Thermolysis’s recycled carbon fiber pellets contain short fibers, with lengths ranging from approximately 0.3 to 0.6 mm. Compared to Long Fiber Reinforced Thermoplastics (LFT), which contain fibers over 10 mm in length, our short fiber pellets impose significantly less wear on injection molding machine screws, making them suitable for standard processing equipment.
 

A：Fiber floating can be minimized through the following approaches:

• Process Adjustment: Recycled carbon fiber compounds tend to have lower flowability. Increasing the barrel temperature and mold temperature can help improve material flow during injection molding.
• Material Selection: Using a low-viscosity polymer matrix or adding flow enhancers can also improve surface finish and reduce visible fiber exposure.

A：Here’s a comparison:
Advantages:

• Higher Strength: For the same thickness, carbon fiber composites offer greater strength than those reinforced with glass fiber.
• Lighter Weight: To achieve equivalent strength, only about 20% carbon fiber is needed compared to 35% glass fiber. Additionally, carbon fiber has a lower density (1.8 vs. 2.5 for glass fiber), resulting in lighter final products.
• More Sustainable: Our pellets can be made with 100% recycled materials—both recycled carbon fiber and recycled plastic.
• No Equipment Upgrade Needed: Recycled carbon fiber pellets can be processed using the same methods and equipment as glass fiber pellets, requiring no additional investment.

Disadvantage:

• Higher Cost: The unit price of carbon fiber pellets is generally higher than that of glass fiber pellets.