PC Chi Mei (Taiwan) PC‑110
PC Chi Mei (Taiwan) PC‑110
Material Introduction: PC Chi Mei (Taiwan) PC‑110 is a medium‑viscosity, general‑purpose, high‑transparency polycarbonate grade. It features high light transmittance, excellent electrical insulation, favorable mechanical strength, good heat resistance and outstanding processing adaptability. It is mainly suitable for injection molding and can also be applied for extrusion.
Main Applications
- Electronic & Electrical Components: Relay housings, capacitor housings, coil bobbins, insulating connectors, telephone housings and parts, switches, etc.
- Automotive Parts: Vehicle indicator‑lamp housings, automotive lamp shades, window panes, instrument‑panel brackets and other components.
- Consumer & Industrial Goods: Home‑appliance parts, chocolate containers, high‑heeled shoe components, toys, tableware, baby bottles, safety lenses, sports equipment and other articles.
- Optical Lighting: Large lamp shades, protective glazing, objective lens barrels for optical instruments.
- Mechanical Equipment: Gears, racks, worm gears, worm shafts, bearings, cams, bolts, as well as shields, covers and frames for mechanical components.
- Medical Devices: Medical cups, tubes, bottles, dental instruments, drug containers, etc. (Note: Shall comply with relevant medical regulations and certification requirements.)
Physical & Mechanical Properties
| Property Category | Performance Parameter | Test Standard | Value / Range | Unit |
|---|---|---|---|---|
| Physical Properties | Density | ISO 1183 | 1.20 | g/cm³ |
| Melt Mass‑Flow Rate (MFR) | ISO 1133 (300°C / 1.2 kg) | 10.0 | g/10 min or cm³/10 min | |
| Water Absorption (23°C, 24hr) | ISO 62 | 0.20 | % | |
| Molding Shrinkage (Flow Direction) | ASTM D955 | 0.50‑0.70 | % | |
| Molding Shrinkage (Transverse Direction) | ASTM D955 | 0.50‑0.70 | % | |
| Light Transmittance (3 mm) | ASTM D1003 | 89.0 | % | |
| Haze (3.2 mm) | ASTM D1003 | ＜0.8 | % | |
| Refractive Index | ASTM D542 | 1.585 | ‑ | |
| Mechanical Properties | Tensile Strength (Yield) | ISO 527‑2 | 65.0 | MPa |
| Tensile Strength (Break) | ISO 527‑2 | 75.0 | MPa | |
| Elongation at Break | ISO 527‑2 | 110‑120 | % | |
| Flexural Strength | ISO 178 | 90.0 | MPa | |
| Flexural Modulus | ISO 178 | 2400 | MPa | |
| Charpy Notched Impact Strength (23°C) | ISO 179/1eA | 75 | kJ/m² | |
| Izod Notched Impact Strength (3.18 mm) | ASTM D256 | 850 | J/m | |
| Rockwell Hardness (M‑scale) | ASTM D785 | M77 | ‑ | |
| Compressive Strength | ASTM D695 | 76.5 | MPa | |
| Thermal Properties | Heat‑Distortion Temperature (1.8 MPa, Unannealed) | ISO 75‑2/Af | 128 | °C |
| Heat‑Distortion Temperature (0.45 MPa, Unannealed) | ISO 75‑2/Bf | 136 | °C | |
| Vicat Softening Temperature (B50) | ISO 306 | 145 | °C | |
| Coefficient of Linear Thermal Expansion (Flow Direction) | ISO 11359‑2 | 6.0‑8.0 × 10⁻⁵ | cm/cm/°C | |
| Thermal Conductivity | ASTM C177 | 0.20 | W/m/K | |
| Electrical Properties | Volume Resistivity | IEC 60093 | 3.0 × 10¹⁶ | Ω·cm |
| Dielectric Strength (1.6 mm) | IEC 60243‑1 | 30 | kV/mm | |
| Relative Dielectric Constant (60 Hz) | IEC 60250 | 2.95 | ‑ | |
| Relative Dielectric Constant (1 MHz) | IEC 60250 | 2.90 | ‑ | |
| Dissipation Factor (60 Hz) | IEC 60250 | 0.0004 | ‑ | |
| Dissipation Factor (1 MHz) | IEC 60250 | 0.009 | ‑ | |
| Arc Resistance | ASTM D495 | 110 | sec | |
| Flame Retardant Performance | UL94 Rating (1.5 mm) | UL 94 | HB | ‑ |
| UL94 Rating (2.5 mm) | UL 94 | V‑2 | ‑ | |
| UL94 Rating (3.0 mm) | UL 94 | V‑2 | ‑ |
Injection Molding Processing Parameters
| Processing Stage | Process Parameter | Suggested Value / Range | Unit | Remarks |
|---|---|---|---|---|
| Pre‑drying | Drying Temperature | 120 | °C | Critical requirement |
| Drying Time | 4‑8 | h | Ensure moisture content＜0.02% | |
| Recommended Dew Point | ＜‑40 °C (dehumidifying dryer recommended) | °C | General PC standard | |
| Injection Temperature | Rear Barrel Temperature | 230‑300 | °C | ‑ |
| Middle Barrel Temperature | 250‑320 | °C | ‑ | |
| Front Barrel Temperature | 250‑310 | °C | ‑ | |
| Nozzle Temperature | Slightly lower than front‑barrel temperature | °C | Usually 5‑10 °C lower | |
| Melt Temperature | 260‑300 | °C | Do not exceed 310°C | |
| Mold Temperature | 70‑120 | °C | ‑ | |
| Injection Pressure & Speed | Injection Pressure (screw‑type) | 60‑100 | MPa | ‑ |
| Holding Pressure | 50%‑80% of injection pressure | MPa | Adjust according to product structure | |
| Injection Speed | Medium‑to‑fast | ‑ | Avoid excessive speed causing shear overheating | |
| Other Parameters | Screw Speed | Medium | rpm | Avoid excessive shear and overheating |
| Back Pressure | 0.3‑0.7 | MPa | Beneficial for melt homogenization | |
| Cushion | 2‑6 | mm | ‑ |
Disclaimer: All above data is for reference only.
