HDPE Iran Petrochemical 52518
HDPE Iran Petrochemical 52518 Resin
Material Introduction: HDPE Iran Petrochemical 52518 is an injection‑molding grade high‑density polyethylene. It features high flowability, narrow molecular‑weight distribution and favorable mechanical properties. It is widely used in injection‑molding field, especially for thin‑wall articles and daily‑use goods.
Main Applications
Daily‑use household goods: household articles, thin‑wall containers, food containers, toys.
General injection‑molded products: suitable for other general injection‑molding applications due to balanced comprehensive performance.
Physical Properties
| Performance Category | Test Item | Test Condition | Test Standard | Value / Range | Unit |
|---|---|---|---|---|---|
| Basic Properties | Density | 23℃ | ASTM D1505 | 0.950‑0.954 | g/cm³ |
| Melt Flow Rate | 190°C / 2.16 kg | ASTM D1238 | 16‑20 | g/10 min | |
| Mechanical Properties | Flexural Modulus | 23℃ | ASTM D790 | ＞1350 | MPa |
| Izod Notched Impact Strength | 23℃ | ASTM D256A | ＞25 | J/m | |
| Tensile Yield Strength (partial grades) | ‑ | ASTM D638 | 20 | MPa | |
| Elongation at Break (partial grades) | ‑ | ASTM D638 | 900 | % | |
| Shore Hardness (partial grades) | ‑ | ASTM D2240 | 65 | ‑ | |
| Thermal Properties | Vicat Softening Point | ‑ | ASTM D1525 | 122 | °C |
| Melting Point (partial grades) | ‑ | ‑ | 131 | °C |
Injection Molding Parameters
| Processing Parameters | Recommended Range | Remarks |
|---|---|---|
| Barrel Temperature (Rear) | 160‑180℃ | Feeding zone, prevent material bridging |
| Barrel Temperature (Middle) | 180‑220℃ | Compression zone, preliminary melting |
| Barrel Temperature (Front) | 200‑240℃ | Metering zone, melt homogenization |
| Nozzle Temperature | 200‑240℃ | ‑ |
| Mold Temperature | 30‑60℃ | Affect cooling rate, crystallinity and surface finish |
| Injection Pressure | 70‑100 MPa | Adjust according to part complexity and flow length |
| Holding Pressure | 50%‑80% of injection pressure | Reduce shrinkage and sink marks |
| Screw Speed | 50‑100 rpm | Avoid excessive shear heat |
Disclaimer: All above data is for reference only.
