Glass Woven Roving | Structural Composite Reinforcement , Automotive / Aerospace Solutions
1. Product Introduction
Glass Woven Roving is a specialized composite reinforcement material made from continuous glass fibers arranged in a non-woven, parallel structure. Engineered for exceptional strength, durability, and versatility, it is widely used in industries requiring lightweight yet robust solutions. Key features include:
- High Tensile Strength: Tensile strength ranges from 3,000 -5,000 MPa, outperforming traditional materials like steel in weight-sensitive applications.
- Chemical Resistance: Resists acids, alkalis, and solvents, making it ideal for harsh environments.
- Thermal Stability: Operates effectively in temperatures up to 400 °C without significant degradation.
- Electrical Insulation: Non-conductive properties ensure safety in electrical and electronic applications.
- Lightweight: Density as low as 1.5 -2.0 g/cm³, critical for aerospace and automotive industries.
2. Manufacturing Process
- Raw Material Preparation:
- High-purity silica sand, limestone, and alumina are melted at 1,500 -1,600°C to form molten glass.
- Fiber Formation:
- Molten glass is extruded through platinum bushings into 10 -25 µm diameter filaments, which are then cooled and solidified.
- Woven Structure:
- Filaments are bundled into roving strands and woven into a parallel-laid non-woven mat using specialized looms.
- Surface Treatment:
- Coated with vinyl ester or silane-based sizings to enhance resin compatibility and adhesion.
- Quality Control:
- ISO 9001-certified testing for tensile strength, thickness uniformity, and chemical resistance.
3. Usage Precautions
- Handling:
- Wear PPE (gloves, goggles) to avoid fiber irritation; use sharp tools cautiously to prevent breakage.
- Resin Compatibility:
- Ensure compatibility with epoxy, polyester, or vinyl ester resins for optimal bonding.
- Curing Conditions:
- Maintain 120 -150°C and 0.5 -1.0 MPa pressure during curing to eliminate voids.
- Storage:
- Store in dry, ventilated areas; avoid humidity to prevent delamination.
4. Specifications
Parameter | Details |
Material | E-glass or C-glass fibers + vinyl ester sizing |
Density | 1.5-2.0 g/cm³ |
Weight | 30-50 g/m² |
Thickness | 0.2-0.5 mm |
Tensile Strength | 3,000-5,000 MPa |
Thermal Stability | Up to 400°C (non-oxidizing) |
Surface Resistivity | >10¹² Ω (electrical insulation) |
Certifications | ISO 9001, REACH, RoHS |
5. Applications & Case Studies
A. Aerospace
- Aircraft Components: Reinforces fuselage panels and engine mounts for lightweight durability. Case: Boeing 787 Dreamliner uses woven roving in wing structures to reduce weight by 20%.
B. Automotive
- Body Panels: Enhances strength of EV door panels and chassis components. Case: Tesla Model S uses woven roving in battery trays for crash resistance.
C. Construction
- Reinforced Concrete: Improves load-bearing capacity of bridges and high-rises. Case: Shanghai Tower's concrete columns incorporate woven roving for seismic resilience.
D. Wind Energy
- Turbine Blades: Reinforces leading edges to withstand high wind loads. Case: GE Haliade-X offshore wind turbine blades use woven roving for fatigue resistance.
E. Electronics
- EMI Shielding: Enclosures for circuit boards and sensors. Case: Samsung Galaxy S23 Ultra backplate for electromagnetic protection.
