LDPE Yanshan Petrochemical LD608
LDPE Yanshan Petrochemical LD608 Resin
Material Introduction: LDPE Yanshan Petrochemical LD608 is low‑density polyethylene. Widely applied in flexible packaging and molded articles with good transparency, excellent processability and food‑contact compliance.
Main Applications
Film packaging: food packaging bags (bread, agricultural products, fast‑food bags), inner liner bags, composite packaging films, non‑peelable rubber packaging films.
Foamed products: suitable for foam material processing.
Small injection‑molded parts: for small‑size injection articles.
Masterbatch carrier: good compatibility and flowability for color masterbatch and additive masterbatch carrier resin.
Performance Parameters
| Performance Category | Test Item | Test Method / Condition | Test Data / Unit | Remarks & Interpretation |
|---|---|---|---|---|
| Basic Properties | Density | GB/T 1033‑1986 | 0.920 g/cm³ | Typical LDPE density range with low weight. |
| Melt Flow Rate (MFR) | GB/T 3682‑2000 | 6.0 g/10min | Good melt flowability, adaptable to multiple processing technologies. | |
| Mechanical Properties | Tensile Strength | GB/T 1040.2‑2006 | 9 MPa | Sufficient strength for film production, transportation and service. |
| Elongation at Break | GB/T 1040.2‑2006 | 500 % | Good toughness and ductility, resistant to large‑deformation damage. | |
| Optical Properties | Haze | GB/T 2410‑1980 | 7.2 % | Low‑haze feature delivers high film transparency. |
| Film Appearance | Fish‑eye (0.3‑2mm) | GB/T 11115‑1989 | 10 pcs/1200cm² | Film quality indicator; lower value represents better uniformity and fewer impurities. |
| Streaks (≥1cm) | GB/T 11115‑1989 | 0 cm/20m² | Lower value means better film uniformity. | |
| Other Properties | Cleanliness | GB/T 11115‑1989 | 0 points/kg | High‑purity resin quality. |
| Opening Property | ‑ | Easy‑tear | Convenient opening performance for finished films. |
Blown‑Film / Extrusion Processing
Recommended processing temperature range for mainstream extrusion blown‑film: 150‑180 ℃
Injection‑Molding Process Parameters
| Process Parameters | Recommended Range | Remarks & Interpretation |
|---|---|---|
| Drying Treatment | Normally not required | Low‑hygroscopic LDPE for direct use. Dry properly under extremely humid storage condition. |
| Melting Temperature | 180‑280 ℃ | ‑ |
| Mold Temperature | 20‑40 ℃ | ‑ |
| Injection Pressure | Up to 1500 bar | ‑ |
| Holding Pressure | Up to 750 bar | Approx. 50 % of injection pressure. |
| Injection Speed | Fast | Fast‑speed injection is recommended. |
| Runner & Gate | Various types | Multiple runner‑gate structures available; hot‑runner mold is particularly applicable. |
Disclaimer: All above data is for reference only.
