Huaying Engineering Technical Summary
Polycarbonate (PC) is a premium amorphous engineering thermoplastic featuring high optical transparency, outstanding notched impact resistance, superior thermal stability, and exceptional dimensional accuracy for automotive optical parts, consumer 3C devices, and precision components.
In advanced polymer materials engineering, Polycarbonate (PC) stands out due to its rigid carbonate-linked backbone. Unlike standard commodity plastics, PC preserves high ductile toughness and structural stability across a broad operating temperature window from -40°C to +130°C.
1. ASTM Mechanical Property Comparison
| Technical Property | Test Standard | Polycarbonate (PC) | Acrylic (PMMA) | Polystyrene (PS) |
|---|---|---|---|---|
| Notched Izod Impact Strength | ASTM D256 | 600 – 850 J/m | 15 – 25 J/m | 15 – 30 J/m |
| Heat Deflection Temp (HDT @ 1.82 MPa) | ASTM D648 | 130 – 140 °C | 85 – 95 °C | 75 – 85 °C |
| Light Transmittance | ASTM D1003 | 88% – 90% | 92% | 88% |
| Flammability Rating | UL 94 | V-2 to V-0 | HB | HB |
2. Huaying Specialized Modification Grades
To meet demanding industrial applications, Huaying Plastic compounds tailored PC resins:
- Glass Fiber Reinforced (PC+GF 10%-30%): Enhances flexural modulus and dimensional rigidity for structural frames.
- Halogen-Free Flame Retardant (PC FR V-0): Meets UL94 V-0 requirements down to 0.8mm for smart meters and EV chargers.
- UV Stabilized Grades: Formulated for 5+ years outdoor longevity without yellowing.
- PC/ABS Polymer Alloys: Balances PC thermal-mechanical strength with ABS injection molding processability.