Biaxial Carbon Fiber Fabric (BX‑CF)
— 0°/90° or ±45° Straight‑Laid Fibers · Simultaneous Main & Off‑Axis Reinforcement · Versatile for Wind, Automotive & Aerospace
1. Product Concept
Biaxial carbon fiber fabric (BX‑CF) comprises two (or more) plies of straight‑laid unidirectional carbon fiber tapes, stitched together with lightweight polyester chain‑stitched yarn. Available in 0°/90° (orthogonal) or ±45° fiber orientations, BX‑CF eliminates the crimp of woven fabrics, reduces resin‑rich zones by 15–25 %, and increases interlaminar shear strength by over 20 %. Ideal for structures loading in both principal and secondary directions.
2. Key Advantages
- Ultra‑High Specific Strength: T700‑12K fibers deliver ≥ 3500 MPa tensile strength at 0°, and ≥ 80 MPa shear at ±45°.
- Lightweight: Density only 1.78 g/cm³—¼ the weight of steel, ⅔ that of aluminum.
- Dimensional Stability: Coefficient of thermal expansion < 1.0 × 10⁻⁶ /°C; stable from −50 °C to +200 °C.
- Easy Lay‑Up: Available in 1.27 m, 1.52 m, and 2.54 m widths for continuous, seamless coverage.
- Process Compatibility: Suitable for hand lay‑up, vacuum bagging, RTM, prepreg, and autoclave.
3. Stock Specifications
| Model | Fiber Orientation | Weight (g/m²) | Thickness (mm) | Width (m) | Length (m) | Typical Applications |
|---|---|---|---|---|---|---|
| BX‑200‑±45 | ±45° | 200 | 0.35 | 1.27 | 50 | UAV wings, ski cores |
| BX‑350‑±45 | ±45° | 350 | 0.45 | 1.27 | 50 | Drive shafts, spoilers |
| BX‑400‑0/90 | 0°/90° | 400 | 0.50 | 1.27 | 50 | Wind‑turbine spars, yacht hulls |
| BX‑400‑±45 | ±45° | 400 | 0.50 | 1.27 | 50 | High‑speed rail, armored vehicles |
| BX‑600‑±45 | ±45° | 600 | 0.65 | 1.27 | 50 | Large wind blades, masts |
Customization Options:
- Fiber angles: 0°/90°, ±45°, 0°/±45°/90° (triaxial), quad‑axial
- Weights: 150–800 g/m²
- Widths: 0.5–3.0 m
- Lengths: 30–300 m
4. Mechanical Properties (BX‑400‑0/90 Example)
| Property | Value | Standard |
|---|---|---|
| 0° Tensile Strength | 2400 MPa | ASTM D3039 |
| 90° Tensile Strength | 1800 MPa | ASTM D3039 |
| Interlaminar Shear | 85 MPa | ASTM D2344 |
| Flexural Strength | 1000 MPa | ASTM D790 |
| Flexural Modulus | 120 GPa | ASTM D790 |
5. Resin & Process Guidelines
| Resin System | Resin Loading | Cure Schedule | Key Benefits |
|---|---|---|---|
| Epoxy (Hand‑Lay) | 300 g/m² | 25 °C 24 h + 60 °C 2 h | High strength, low cost |
| Epoxy (Prepreg) | 38 % resin content | 120 °C 90 min | Consistent finish, low void content |
| Vinyl Ester | 320 g/m² | 25 °C 4 h + 80 °C 2 h | Chemical & heat resistance |
| BMI High‑Temp | 320 g/m² | 180 °C 2 h | Aerospace‑grade to 200 °C |
6. Application Examples
- Wind Energy: BX‑600‑±45 for 80 m blade spar caps—28 % lighter, 35 % stiffer.
- Automotive: BX‑350‑±45 for 1.8 m drive shafts—40 % higher torque, 55 % weight reduction.
- Aerospace: BX‑400‑0/90 for satellite solar panels—3× in‑plane stiffness.
- Infrastructure: BX‑400‑0/90 for bridge box girder wraps—3× fatigue life.
- Sports: BX‑200‑±45 for surfboard fins—50 % higher torsional rigidity, 2000 h salt‑spray resistance.
7. Packaging & Delivery
- Roll Core: 76 mm tube wrapped in PE film + kraft paper → carton
- Pallet: Stretch wrap + corner protectors → fumigated pallet
- MOQ: Stock 10 m; custom from 100 m; lead time 3–5 days
- Certifications: Includes TDS, RoHS, REACH, IMDG marine transport certification
Offline Contracts
All sales of our carbon fiber materials are conducted through offline contract agreements to ensure each order precisely meets your specifications, compliance requirements, and agreed payment terms. Please contact our sales team to initiate the contract process and discuss project details.
| name | value | unitCode | unitText |
|---|---|---|---|
| MOQ | 50 | PCS | |
| Lead Time | 5–20 | business days | |
| Material | Carbon Fiber | ||
| Size | Customizable (width / length / areal weight) |
Resources
Biaxial carbon fiber fabric—preset your primary spar and rib orientations in one lay‑up, making complex load paths seamless.
