PC Lotte Chemical PC‑1220
PC Lotte Chemical PC‑1220
Material Introduction: PC Lotte Chemical PC‑1220 is a low‑viscosity general‑purpose polycarbonate resin. It features high transparency and free dyeability. It is odorless, tasteless and harmless to human body, with high flowability, easy‑processing performance, heat resistance and favorable mechanical strength.
Main Applications
- Electronic & Electrical Components: Computer peripherals (keyboards, mice, computer cases, etc.), insulating connectors, coil bobbins, telephone housings, telephone exchangers, signal relays and other communication‑equipment parts. Especially suitable for electronic‑product housings and internal components with fine structures.
- Medical Devices: Medical‑equipment components requiring high precision and transparency.
- Precision Instruments: Instrument parts with strict requirements for dimensional accuracy and surface quality.
- Optical Lighting: Large‑size lamp housings, protective glazings, left‑and‑right eyepiece tubes for optical instruments.
- Food‑Contact Materials: Approved by FDA for food containers, applicable to food‑packaging applications.
Key Characteristics
| Characteristic Category | Description | Reference Data (Test Standard) |
|---|---|---|
| Physical Properties | Low‑viscosity, high‑flowability, easy‑release, transparent | Density: 1.20 g/cm³ (ASTM D792) MFR (300°C/1.2 kg): 22 g/10 min (ASTM D1238) |
| Mechanical Properties | High rigidity, high strength, impact‑resistant | Tensile Yield Strength: 61.8 MPa (ASTM D638) Elongation at Break: ＞100% (ASTM D638) Flexural Modulus: 2350 MPa (ASTM D790) Flexural Yield Strength: 90.2 MPa (ASTM D790) Izod Notched Impact Strength (23°C): 690 J/m (ASTM D256) |
| Thermal Properties | Good heat resistance | HDT (0.45 MPa, unannealed): 139°C (ASTM D648) HDT (1.8 MPa, unannealed): 128°C (ASTM D648) Vicat Softening Temperature: 150°C (ASTM D1525) |
| Optical Properties | High transparency | Light Transmittance: 89.0% (ASTM D1003) Haze: ＜0.80% (ASTM D1003) Refractive Index: 1.585 (ASTM D542) |
| Safety & Certifications | Flame retardancy (UL94 V‑2 @1.6 mm), food‑grade compliance (FDA certification) | ‑ |
| Processing Properties | Injection‑molding 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 | °C |
| Drying Time | 4.0 | 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 | °C | |
| Injection Settings | Back Pressure | 5‑20 | kgf/cm² |
| Screw Speed | 30‑70 | rpm |
Disclaimer: All above data is for reference only.
