PC Chi Mei (Taiwan) PC‑6710
PC Chi Mei (Taiwan) PC‑6710
Material Introduction: PC Chi Mei (Taiwan) PC‑6710 is a flame‑retardant, transparent, high‑flow polycarbonate grade. It is manufactured by non‑phosgene melt transesterification process. It is well‑known for outstanding flame retardancy (UL94 V‑0), high transparency, favorable mechanical strength and good heat resistance.
Main Applications
- Electronic & Electrical Equipment: Components requiring strict flame‑retardant performance, such as computer enclosures, cash‑register back covers, power‑adapter housings, instrument housings, charger housings, electronic‑electrical enclosures, industrial electrical equipment, communication devices, etc.
- Lighting Equipment: Lamps and lamp shades requiring high transparency and flame retardancy.
- Outdoor Applications: Suitable for certain outdoor electrical and equipment parts due to UV‑resistance (UL 746C f1 rating).
- Automotive Components: Selected automotive interior parts.
- Other Fields: Home appliances, power tools and other applications.
Physical & Mechanical Properties
| Property Category | Performance Parameter | Test Standard | Value / Range | Unit |
|---|---|---|---|---|
| Physical Properties | Density | ASTM D792 | 1.20 | g/cm³ |
| Melt Mass‑Flow Rate (MFR) | ASTM D1238 (300°C / 1.2 kg) | 10.0 | g/10 min | |
| Water Absorption (23°C, 24hr) | ASTM D570 | ‑ | % | |
| Molding Shrinkage (Flow Direction, 3.20 mm) | ASTM D955 | 0.50‑0.70 | % | |
| Molding Shrinkage (Transverse Direction, 3.20 mm) | ASTM D955 | 0.60 | % | |
| Light Transmittance (2000 μm) | ASTM D1003 | 87.0 | % | |
| Haze (2000 μm) | ASTM D1003 | 1.2 | % | |
| Mechanical Properties | Tensile Strength (Yield) | ASTM D638 | 61.8 | MPa |
| Elongation at Break | ASTM D638 | 100 | % | |
| Flexural Strength | ASTM D790 | 88.3‑90.2 | MPa | |
| Flexural Modulus | ASTM D790 | 2160‑2350 | MPa | |
| Izod Notched Impact Strength (23°C, 0.125 in) | ASTM D256 | 780‑830 | J/m | |
| Rockwell Hardness (R‑scale) | ASTM D785 | 123 | ‑ | |
| Thermal Properties | Heat‑Distortion Temperature (1.8 MPa, Unannealed) | ASTM D648 | 125 | °C |
| Vicat Softening Temperature | ASTM D1525 | 148 | °C | |
| Electrical Properties | (Refer to official TDS for detailed data) | ‑ | ‑ | ‑ |
| Flame Retardant Performance | UL94 Rating (3.00 mm) | UL 94 | V‑0 | ‑ |
| Optical Properties | Light Transmittance (2000 μm) | ASTM D1003 | 87.0 | % |
| Haze (2000 μm) | ASTM D1003 | 1.2 | % |
Injection Molding Processing Parameters
| Processing Stage | Process Parameter | Suggested Value / Range | Unit | Remarks |
|---|---|---|---|---|
| Pre‑drying | Drying Temperature | 120 | °C | Critical requirement |
| Drying Time | 4.0 | h | Ensure moisture content＜0.02% | |
| Injection Temperature | Rear Barrel Temperature | 280‑310 | °C | ‑ |
| Middle Barrel Temperature | 280‑310 | °C | ‑ | |
| Front Barrel Temperature | 280‑310 | °C | ‑ | |
| Nozzle Temperature | 280‑310 | °C | ‑ | |
| Melt Temperature | ‑ | °C | Do not exceed 330°C | |
| Mold Temperature | 70.0‑100 | °C | ‑ | |
| Injection Pressure & Speed | Injection Pressure | Adjust according to product and mold | MPa | General guideline |
| Holding Pressure | 50%‑80% of injection pressure | MPa | General guideline | |
| Injection Speed | Medium‑to‑fast | ‑ | Take advantage of high flowability | |
| Other Parameters | Screw Speed | Medium | rpm | Avoid excessive shear and overheating |
| Back Pressure | Moderate | MPa | Beneficial for melt homogenization |
Disclaimer: All above data is for reference only.
