LDPE Singapore Polyolefin G812
LDPE Singapore Polyolefin G812 Resin
Material Introduction: LDPE Singapore Polyolefin G812 is low‑density polyethylene featured with high flowability, high gloss and excellent molding performance, mainly applied for injection‑molding process.
Main Applications
Toys: plastic toy components. Covers: various container lids. Household goods: daily‑use articles and artificial flowers.
Performance Parameters
| Performance Category | Test Item | Test Condition | Test Standard | Test Data | Unit | Remarks & Interpretation |
|---|---|---|---|---|---|---|
| Basic Properties | Density | 23°C | ASTM D792 | 0.917 | g/cm³ | Typical LDPE density range. |
| Melt Flow Rate (MFR) | 190°C/2.16 kg | ASTM D1238 | 35 | g/10 min | High melt flow, good for injection molding for glossy parts. | |
| Mechanical Properties | Tensile Strength at Break | ‑ | ASTM D638 | 9.80 | MPa | Tensile property of resin. |
| Tensile Strength at Break | ‑ | ASTM D638 | 100 | kg/cm² | Unit conversion reference. | |
| Elongation at Break | ‑ | ASTM D638 | 600 | % | Excellent toughness and ductility. | |
| Flexural Modulus | ‑ | ASTM D747 | 180 | MPa | Material rigidity index. | |
| Flexural Modulus | ‑ | ASTM D747 | 1800 | kg/cm² | Unit conversion reference. | |
| Thermal Properties | Melting Temperature | ‑ | Internal Method | 105 | °C | Resin melting peak temperature. |
Injection‑Molding Process Parameters
- Barrel temperature: recommended range 160~300℃ (from feed zone to nozzle), melt temperature generally 220~280℃. (General LDPE reference, consult supplier for exact setting for G812)
- Mold temperature: 20‑50°C. Adjust according to product structure & requirements; low mold temperature shortens cycle time.
- Injection pressure: low‑to‑medium pressure due to superior flowability; adjust according to part geometry, wall thickness and mold design.
- Injection speed: medium‑high speed, realize fast filling and good surface gloss.
- Back pressure: 5‑10 bar for melt homogenization, avoid excessive value.
- Screw speed: moderate rotation speed, prevent material degradation caused by over‑shearing.
- Drying treatment: pre‑drying normally unnecessary. Dry at 60‑70°C for 1‑2 h under humid storage condition.
Disclaimer: All above data is for reference only.
