Description
Carbon fibers are produced through carbonization and graphitization of organic fibers. QINI supplies carbon fiber unidirectional (UD) prepreg products manufactured with finished carbon fibers, designed for commercial procurement and industrial manufacturing scenarios. The standard grade CUD150/33%-1000 is widely adopted across multiple sectors, with adjustable specifications available to fit varied production requirements.
Item | Parameter |
Product Specification | CUD150/33%-1000 |
Brand | QINI |
Carbon Fiber Weight | 15-800g/m² |
Resin Content | 20-50% |
Width | 300-1500mm |
Roll Length | 0-100 m |
Yarn Strength | T300-T1100 |
Resin System | epoxy resin, bismaleimide resin, cyanate resin, phenolic resin, polyetheretherketone resin |
- | 0° Fiber | 0° Density (g/m²) | 90° Fiber | 90° Density (g/m²) | Density (g/m²) |
CUD200-12k | 12K | 200 | Other | -- | 200 |
CUD300-12k | 12K | 300 | Other | -- | 300 |
CUD320-6k | 6K | 320 | Other | -- | 320 |
CUD320-12k | 12K | 320 | Other | -- | 320 |
CUD500-6k | 6K | 500 | Other | -- | 500 |
Code | Warp Fiber | Warp Weight (g/m²) | Weft Fiber | Weft Weight (g/m²) | Density (g/m²) | Thickness (mm) |
CUD150 | 12K | 150 | Hot Melt | 8 | 150 | 0.15 |
Advantages
The product is produced through a controlled workflow with defined parameters for each stage. First, 12K carbon fibers are laid in a 0° direction with tension control to reduce fiber breakage. Second, epoxy resin (33% content for the standard grade) is uniformly coated onto fibers via a precision roller, with temperature maintained at 40-50°C to control resin viscosity. Third, coated fibers are laminated with release paper to prevent sticking, then cooled to 20-25°C to set the prepreg structure. Finally, each roll is labeled with corresponding curing parameters to guide downstream processing.
The standard epoxy-based grade delivers a tensile strength of 3400MPa and a modulus of 230GPa, with a 33% resin content that supports uniform fiber wetting. The pre-impregnated resin system cures under heat and pressure, which supports manufacturing of parts with complex geometries such as golf club heads. For high-temperature scenarios, grades with bismaleimide resin withstand continuous temperatures of up to 250°C, fitting for components exposed to elevated heat. The product achieves a void content of less than 1%, which supports improved fatigue resistance for components subject to repeated load cycles. Additional properties include wear resistance, corrosion resistance, electrical conductivity, electric heating and infrared radiation properties.
Application Area
This carbon fiber UD prepreg is compatible with multiple production methods for industrial operations, including prepreg process, Vacuum Infusion Process, hand lay-up, molding process, and holding pressure tank process. Production teams can select the appropriate process based on part structure, volume requirements and performance targets.
 | Aerospace: Used for aircraft structural parts, engine components and missile assemblies, where low void content and fatigue resistance support long service life under cyclic loads. |
Automotive manufacturing: Applied to body parts, engine hoods, roofs, and bumpers, to reduce component weight while maintaining structural strength. |  |
 | Sports equipment: Adopted for fishing tackle, golf clubs, rackets, pickleball paddles, bicycle frames and helmets, balancing rigidity and weight for end products. |
Energy: Utilized for wind turbine blades and solar panel components, supporting long-term outdoor service with corrosion resistance. |  |
 | Electronic and electrical appliances: Used for electronic housings and high-end circuit boards, leveraging electrical conductivity and dimensional stability. |
Architecture: Applied for structural reinforcement and decorative panels, combining strength with design flexibility. |  |
Maintenance
For standard epoxy resin systems, reference curing conditions vary by molding method:
Mold forming (such as automotive parts): 120-150°C for 30-90 minutes; parameters can be adjusted based on part thickness.
Pipe molding (such as golf clubs and fishing rods): 80°C for 30 minutes, followed by 125°C for 90 minutes.
For uncured carbon fiber UD prepreg rolls: store at -18°C in a freezer environment for a shelf life of 6 months. Thaw rolls at room temperature for 24 hours before processing; do not refreeze rolls once thawed, to avoid resin performance degradation. For cured carbon fiber parts: clean surface dust and stains in a timely manner with dedicated cleaners, and avoid acidic or alkaline cleaners. Do not expose cured parts to long-term direct sunlight, which may cause surface cracking and fading. Store cured parts in dry, ventilated environments away from high humidity and high temperature conditions.
FAQ
For mold forming applications such as automotive parts, the recommended curing condition is 120-150°C for 30-90 minutes, with adjustments based on part thickness. For pipe products such as fishing rods, the recommended cycle is 80°C for 30 minutes plus 125°C for 90 minutes.
Yes, resin content can be adjusted for commercial procurement requirements, ranging from 20% for high-strength aerospace parts to 50% for flexible sports equipment. Contact our team for custom ratio solutions.
Store the product at -18°C in freezer conditions to achieve a 6-month shelf life. Thaw unopened rolls at room temperature for 24 hours before use; refreezing after thawing is not recommended.
