Carbon fiber unidirectional prepreg is a tape-shaped intermediate composite material manufactured by continuous carbon fibers aligned in parallel and impregnated with medium-temperature epoxy resin. The fibers are highly oriented.
The fibers are highly oriented. Laying-up design can be flexibly arranged according to structural load direction. Parts can be cured under heat and pressure via vacuum bag or autoclave process. The material features stable tack and controllable resin flow, suitable for manufacturing high-performance load-bearing composite components.
| Parameter | Value |
|---|---|
| Frozen storage | -18℃ |
| Frozen shelf life | 12 months |
| Out-time life (20~25℃ after thawing) | ≤14 days |
| Note | Do not re-freeze after thawing to prevent resin migration |
| Parameter | Value |
|---|---|
| Heating rate | 0.5~2 ℃/min |
| Vacuum | ≥ -0.08 MPa |
| Consolidation pressure | 0.4~0.6 MPa |
| Dwell | 120℃, 90~120 min |
| Cooling rate | ≤3 ℃/min |
Product Features and Performance
Unidirectional fiber arrangement, outstanding tensile strength and modulus along 0° direction, enabling directional structural optimization.
Uniform resin content and thorough impregnation, resulting in low void content and consistent mechanical properties of laminates.
Medium-temperature curing system with proper processing window, balancing production efficiency and comprehensive mechanical performance.
Stored under frozen condition; good conformability and tackiness after thawing.
Can be co-laminated with woven prepreg to realize integrated design of stiffness, strength and impact resistance.
Low density, high specific strength and specific modulus, excellent lightweight effect.

Applications
Aerospace secondary load-bearing components, lightweight structural parts for rail transit, new energy energy storage enclosures, auxiliary structures of wind turbine blades, high-end sports equipment, robotic arms, UAV fuselage and spars, high-performance marine parts, lightweight components for construction machinery.


