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Used together with engineering plastics, nylon, phenolic molding compound, or polypropylene, glass fiber can strengthen the plastics materials.
E-Glass Fiber Chopped Strand: Overview and Key Properties
| Category | Details |
|---|---|
| Material Type | Alumino-borosilicate glass fiber |
| Form | Chopped strands (3-50 mm length) |
| Standard | ASTM D578. ISO 2078 |
| Primary Use | Reinforcement for composites |
Physical & Mechanical Properties
| Property | Typical Value |
|---|---|
| Diameter | 9-17 µm |
| Density | 2.54-2.60 g/cm³ |
| Tensile Strength | 3.000-3.500 MPa |
| Elastic Modulus | 72-76 GPa |
| Elongation at Break | 4.5-4.8% |
Product Specifications
| Parameter | Standard Range |
|---|---|
| Length Options | 3mm, 6mm, 12mm, 25mm, 50mm |
| Sizing Content | 0.5-1.2% (silane-based) |
| Moisture Content | <0.1% |
| Bulk Density | 0.3-0.6 g/cm³ |
Manufacturing Process
| Stage | Description |
|---|---|
| Melting | 1.400-1.500°C furnace |
| Fiberization | Platinum bushings (200-400 holes) |
| Chopping | Precision cutting to length |
| Sizing Application | Chemical treatment for adhesion |
Applications
| Industry | Composite Type | Benefits |
|---|---|---|
| Automotive | SMC/BMC | Impact resistance |
| Construction | GFRC panels | Crack prevention |
| Electrical | PCB substrates | Dimensional stability |
| Consumer Goods | Sports equipment | Weight reduction |
Processing Methods
| Technique | Optimal Length | Fiber Loading |
|---|---|---|
| Injection Molding | 3-6mm | 10-40% |
| Compression Molding | 12-25mm | 20-60% |
| Hand Lay-up | 25-50mm | 15-30% |
Comparison with Other Fibers
| Fiber Type | E-Glass vs. |
|---|---|
| S-Glass | 20% lower strength, 30% lower cost |
| Carbon Fiber | 1/3 stiffness, 1/10 price |
| Aramid | Better impact resistance, lower temp tolerance |
Safety & Handling
| Aspect | Guidelines |
|---|---|
| Skin Contact | PPE required (micro-irritation risk) |
| Dust Control | Local exhaust ventilation |
| Storage | Dry (<50% RH), sealed packaging |
Market Data
| Region | Market Share | Price Range |
|---|---|---|
| Asia-Pacific | 55% | $2.5-4.0/kg |
| Europe | 25% | $3.0-4.5/kg |
| North America | 20% | $2.8-4.2/kg |
Key Advantages and Limitations
| Advantages | Limitations |
|---|---|
| Excellent cost-performance ratio | Lower stiffness vs. carbon fiber |
| Good chemical resistance | Moisture absorption in humid environments |
| Electrical insulation properties | Abrasive to equipment |
Summary
E-glass chopped strands remain the most widely used reinforcement for polymer composites, offering balanced mechanical properties and processability. Ongoing developments focus on improved sizing formulations for enhanced interfacial adhesion in next-generation materials.
Declaration: The products displayed on this website are intended exclusively for industrial applications or scientific research. They are not intended for medical, pharmaceutical, or food use. In accordance with applicable laws and regulations, purchasing organizations must hold valid qualifications and approvals.
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