PC Lotte Chemical PC‑1070
PC Lotte Chemical PC‑1070
Material Introduction: PC Lotte Chemical PC‑1070 is a high‑viscosity general‑purpose polycarbonate material with outstanding performance. It is well‑recognized for high transparency, excellent impact strength and good heat resistance. It supports free color‑matching, is odorless and tasteless, harmless to human body and complies with hygiene‑safety standards.
Main Applications
- Electronic & Electrical Components: CD discs, switches, household‑appliance housings, signal tubes, telephones and other parts, utilizing its high transparency, favorable electrical properties and flame‑retardant performance.
- Sheet Manufacturing: Single‑layer and multi‑layer composite sheets, corrugated sheets, solid sheets and other products.
- Food Packaging: FDA‑approved for food‑contact applications, such as food containers and bottle caps.
- Optical Field: Liquid‑crystal light‑guide plates, optical lenses and other optical components requiring high transparency and good optical performance.
- Automotive Industry: Automotive components, lamp housings, etc.
- Pipe Extrusion: Plastic pipes.
Key Characteristics
| Characteristic Category | Description | Reference Data (Test Standard) |
|---|---|---|
| Physical Properties | High‑viscosity, high transparency, free dyeability | Density: 1.20 g/cm³ (ASTM D792) MFR (300°C/1.2 kg): 7.0 g/10 min (ASTM D1238) |
| Mechanical Properties | High strength, high modulus of elasticity, superior impact strength | Tensile Yield Strength: 61.8 MPa (ASTM D638) Elongation at Break: ＞100% (ASTM D638) Flexural Yield Strength: 90.2 MPa (ASTM D790) Flexural Modulus: 2350 MPa (ASTM D790) Izod Notched Impact Strength (23°C): 830 J/m (ASTM D256) or 85 kJ/m² |
| Thermal Properties | Good heat resistance | HDT (0.45 MPa, unannealed): 144°C (ASTM D648) HDT (1.8 MPa, unannealed): 133°C (ASTM D648) Vicat Softening Temperature: 153°C (ASTM D1525) |
| Optical Properties | High transparency | Light Transmittance: 89.0% (ASTM D1003) Haze: ＜0.80% (ASTM D1003) Refractive Index: 1.585 (ASTM D542) or 1.59 |
| Safety Properties | Intrinsic flame retardancy, food‑grade compliance (FDA certification) | UL 94: V‑2 (1.60‑1.70 mm) or V‑0 grade |
| Processing Properties | Injection & extrusion grade; sufficient pre‑drying required to prevent hydrolytic degradation | Recommended moisture content ＜0.02% |
Injection Molding Processing Parameters
| Processing Stage | Parameter Item | Suggested Range / Operation Notes | Unit / Remarks |
|---|---|---|---|
| Pre‑drying | Drying Temperature | 120 or 100 | °C |
| Drying Time | 4.0 or 4‑6 (hot‑air drying) | h | |
| Allowable Moisture Content | ＜ 0.02% | Critical requirement | |
| Injection Temperature | Rear Barrel Temperature | 290‑310 | °C |
| Middle Barrel Temperature | 280‑300 | °C | |
| Front Barrel Temperature | 270‑290 | °C | |
| Nozzle Temperature | 280‑300 | °C | |
| Melt Temperature | 290‑310 | °C | |
| Mold Temperature | 60‑90 or 70‑100 | °C | |
| Injection Settings | Injection Pressure | Adjust according to product and mold design (example:1000 kgf/cm²) | MPa or kgf/cm² |
| Back Pressure | 10‑30 | kgf/cm² | |
| Screw Speed | 40‑80 | rpm |
Disclaimer: All above data is for reference only.
