Fiberglass knitted fabrics are advanced reinforcement materials engineered to enhance multidirectional mechanical strength in composite products. Utilizing high-performance fibers (e.g., HCR/HM fibers) arranged in specific orientations and stitched with polyester yarns, these fabrics offer tailored reinforcement solutions for demanding industrial applications.
Types and Manufacturing
1. Unidirectional Fabrics:
- EUL( 0°): Warp UD Fabrics are made of 0°direction for the main weight. It can be combined with chopped layer (30~600/m2) or non-woven veil (15~100g/m2). The weight range is 300~ 1300 g/m2, with the width of 4~100 inches.
- EUW ( 90°): Weft UD Fabrics are made of 90°direction for the main weight. It can be combined with chopped layer (30~600/m2) or non-woven fabric (15~100g/m2). The weight range is 100~ 1200 g/m2, with the width of 2~100 inches.
- Ideal for unidirectional load-bearing components like beams or trusses.
2. Double Axial Fabrics:
-EB（ 0°/90°）: The general direction of EB Biaxial Fabrics are 0°and 90°,the weight of each layer in each direction can be adjusted as per customers’ requests. Chopped layer (50~600/m2) or non-woven fabric (15~100g/m2) can also be added. The weight range is 200~2100g/m2, with the width of 5~100 inches.
- EDB（+45°/-45°）:The general direction of EDB Double Biaxial Fabrics are +45°/-45°,and the angle can be adjusted as per customers’ requests. Chopped layer (50~600/m2) or non-woven fabric (15~100g/m2) can also be added. The weight range is 200~1200g/m2, with the width of 2~100 inches.
- Suited for bidirectional stress applications such as pressure vessels.
3. Triaxial Fabrics:
- Layers arranged in ±45°/0° or ±45°/0°/90° configurations (300–2,000 g/m²), optionally laminated with chopped strands.
- Optimized for complex multidirectional loads in aerospace or wind energy.
Key Advantages
- Rapid Resin wet-through & wet out: Open stitching structure accelerates resin flow, reducing production time.
- Directional Strength Customization: Uniaxial, biaxial, or triaxial designs cater to specific stress profiles.
- Structural Stability: Stitch-bonding prevents fiber shifting during handling and curing.
Applications
- Wind Energy: Primary reinforcement for turbine blades, offering fatigue resistance.
- Marine: Hulls and decks in boats benefit from corrosion resistance and impact strength.
- Aerospace: Lightweight structural panels and interiors.
- Infrastructure: Chemical storage tanks, pipes, and sports equipment (e.g., bicycles, helmets).
Conclusion
Fiberglass warp-knitted fabrics bridge precision engineering and composite versatility. Their customizable fiber alignment, combined with efficient resin compatibility, makes them indispensable for high-performance industries. As lightweight, durable materials gain prominence in sustainable technologies, these fabrics are poised to drive innovation in sectors from renewable energy to advanced transportation.
Post time: May-26-2025