HDPE Dushanzi Petrochemical HD5502XA
HDPE Dushanzi Petrochemical HD5502XA Resin
Material Introduction: HDPE Dushanzi Petrochemical HD5502XA is a high‑density polyethylene grade for blow‑molded medium‑and‑small‑size containers. Supplied as non‑toxic, tasteless and odorless plastic pellets, it features high rigidity, good chemical resistance and excellent toughness.
Main Applications
Medium‑and‑small‑size containers: bottles and containers below 30 L for chemicals, food and oil products packaging.
Household appliances & non‑pressure pipes: certain household articles and non‑pressure piping.
Other applications: modified grade for 4‑L jerry‑can with handle.
Performance Parameters
| Performance Category | Test Item | Test Method / Condition | Value & Unit | Remarks & Interpretation |
|---|---|---|---|---|
| Basic Properties | Density | ASTM D1505 | 0.954 g/cm³ | HDPE grade with high hardness and good rigidity. |
| Melt Flow Rate (MFR) | ASTM D1238 (190°C/2.16 kg) | 0.2 g/10min | Low MFR delivers high melt strength, ideal for blow‑molding to maintain parison geometry. | |
| Mechanical Properties | Tensile Strength | ASTM D638 | 26 MPa | Indicator of tensile‑deformation resistance. |
| Elongation at Break | ASTM D638 | ＞300 % | Excellent toughness and ductility; withstand large deformation without fracture. |
Blow‑Molding Processing
| Process Item | Parameter | Remarks & Interpretation |
|---|---|---|
| Processing Temperature | 170‑190°C | Typical blow‑molding temperature range |
| Screw Rotation Speed | 24 Hz | Shaft rotation frequency |
| Blowing Time | 38‑40 s | Compressed‑air holding duration |
| Parison Control | Low MFR 0.2 g/10min | High melt strength prevents parison sagging and maintains profile shape. |
Processing Notes
- Melt strength: low melt index provides good melt strength to keep parison dimension stable during blow‑molding.
- Cooling: properly adjust cooling time and temperature for part setting and deformation reduction.
- Mold design: tailor mold structure according to container geometry and volume; take shrinkage rate into consideration.
Disclaimer: All above data is for reference only.
