PC Zhejiang Petrochemical G1010‑F
PC Zhejiang Petrochemical G1010‑F
Material Introduction: Injection‑molding grade transparent polycarbonate with UL94‑HB flame retardant rating, which is an off‑spec material in the industry. It delivers high transparency, favorable mechanical properties, good heat resistance and balanced processability. It is widely used in electronic‑electrical products, consumer goods and general‑industrial components, especially for cost‑sensitive applications with basic performance requirements.
Note: Off‑spec materials (also called secondary‑grade materials) are by‑products generated during production. They do not fully meet the standards of prime‑grade materials but still possess usable value.
Main Applications
- Electronic & Electrical Field: Various electrical housings and electronic components. Its high transparency and HB flame‑retardant property improve the safety performance of electrical products.
- Consumer Goods & Industrial Products: Home‑appliance parts, lamp housings, toys, models.
- General Mechanical Components: Shields, covers and frames for parts without extremely strict requirements for surface appearance and mechanical performance.
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) | ISO 1133 (300°C / 1.2 kg) | 11 | g/10 min | |
| Water Absorption (23°C, 24hr) | ISO 62 | 0.40 | % | |
| Molding Shrinkage (Flow Direction, 3.2 mm) | ASTM D955 | 0.5‑0.7 | % | |
| Light Transmittance (1 mm) | GB/T 2410 | ＞90 | % | |
| Mechanical Properties | Tensile Stress (Yield) | ISO 527‑2/1A | 63.0 | MPa |
| Flexural Strength (3.20 mm) | ASTM D790 | 94.0 | MPa | |
| Flexural Modulus | ISO 178 | 2100 | MPa | |
| Tensile Strain at Break | ISO 527‑2/50 | 110 | % | |
| Izod Notched Impact Strength (23°C) | GB/T 1843 | 18 | kJ/m² | |
| Thermal Properties | Heat‑Distortion Temperature (0.45 MPa, Unannealed, 6.4 mm) | ASTM D648 | 119 | °C |
| Heat‑Distortion Temperature (1.80 MPa) | GB/T 1634.1 | 118 | °C | |
| Flame Retardant Performance | UL94 Rating (1.50 mm) | UL 94 | HB | ‑ |
| UL94 Rating (3.00 mm) | UL 94 | HB | ‑ |
Injection Molding Processing Parameters
| Processing Stage | Process Parameter | Suggested Value / Range | Unit | Remarks |
|---|---|---|---|---|
| Pre‑drying | Drying Temperature | 110‑120 | °C | Critical requirement |
| Drying Time | 4‑8 (or longer) | h | Ensure moisture content＜0.02‑0.03% | |
| Moisture Content after Drying | ＜0.02‑0.03 | % | ‑ | |
| Injection Temperature | Rear Barrel Temperature | 240‑260 | °C | General reference range for PC |
| Middle Barrel Temperature | 260‑280 | °C | General reference range for PC | |
| Front Barrel Temperature | 280‑310 | °C | General reference range for PC | |
| Nozzle Temperature | Slightly lower than front‑barrel temperature | °C | ‑ | |
| Melt Temperature | 270‑320 | °C | Avoid overheating degradation | |
| Mold Temperature | 80‑100 | °C | ‑ | |
| Injection Pressure & Speed | Injection Pressure | Adjust according to product and mold | MPa | ‑ |
| Holding Pressure | 50%‑80% of injection pressure | MPa | ‑ | |
| Injection Speed | Medium‑to‑fast | ‑ | Medium‑fast speed is preferred | |
| Other Parameters | Back Pressure | 0.5‑1.0 (5‑10 bar) | MPa | May be reduced if no flow mark or color mixing occurs |
| Screw Speed | Medium‑low | rpm | Prevent excessive shear heat | |
| Vent Depth | ＜0.03‑0.06 | mm | ‑ |
Disclaimer: All above data is for reference only. Actual production shall be subject to real‑product trial molding.
