HDPE Iran Petrochemical 60507
HDPE Iran Petrochemical 60507 Resin
Material Introduction: HDPE Iran Petrochemical 60507 is an injection‑molding‑grade high‑density polyethylene. It is supplied as non‑toxic, tasteless, odorless milky‑white pellets, featuring high rigidity, good toughness and narrow molecular‑weight distribution.
Main Applications
Packaging boxes & containers: cargo bins, packing cases, plastic crates, turnover boxes.
Daily‑use goods & industrial components: low‑grade household articles, housings and non‑load‑bearing structural parts.
Performance Parameters
| Performance Category | Test Item | Test Method / Condition | Value & Unit | Remarks & Interpretation |
|---|---|---|---|---|
| Basic Properties | Density | ASTM D‑1505 | 0.958 g/cm³ | HDPE grade with high hardness and good rigidity. |
| Melt Flow Rate (MFR) | ASTM D‑1238 (190°C/2.16 kg) | 6.5‑8.5 g/10min | Good flowability for fast cavity filling in injection molding. Alternative reference value: 7.5 g/10min, data varies from different sources. | |
| Mechanical Properties | Tensile Yield Strength | ASTM D‑638 | ≥30 MPa | High value represents good tensile‑deformation resistance. |
| Tensile Strength at Break | ASTM D‑638 | 13 MPa | Maximum stress the material can sustain before fracture. | |
| Elongation at Break | ASTM D‑638 | 350 % | Good toughness and ductility, tolerates large deformation without fracture. | |
| Flexural Modulus | ASTM D‑790 | ≥1500 MPa | High modulus indicates strong bending‑deformation resistance. Alternative reference value:1500 MPa. | |
| Izod Notched Impact Strength (23°C) | ASTM D‑256/A | ≥36 J/m | Room‑temperature impact resistance. Alternative reference value:36 J/m. | |
| Thermal Properties | Vicat Softening Point | ASTM D‑1525 | ≥127 °C | Indicator of heat resistance, higher value means better thermal stability. Alternative reference value:127 °C. |
| Appearance & Cleanliness | Colored Particles | ‑ | ≤10 pcs/kg | Index for material purity and surface quality; lower value is preferred. |
Injection‑Molding Process Parameters
| Process Parameters | Recommended Range | Remarks & Interpretation (General HDPE characteristics) |
|---|---|---|
| Drying Treatment | Normally not required | HDPE has extremely low moisture absorption (≤0.01%). Drying is unnecessary under normal storage. If stored under high‑humidity conditions, dry at 60‑70°C for 1‑2 hours as precaution. |
| Barrel Temperature | 180‑230 °C | Crystalline polymer; barrel temperature shall be higher than melting point. Typical target temperature around 220℃; lower value for rear zone, higher value for front zone. |
| Mold Temperature | 50‑70 °C | Mold temperature greatly affects crystallization. Higher mold temperature brings higher crystallinity and strength along with larger shrinkage. 10‑20℃ higher than LDPE (LDPE mold temp:30‑45℃). |
| Injection Pressure | 50‑100 MPa | Good flowability; use lower pressure except for thin‑wall long‑flow‑path parts. Lower pressure for simple thick‑wall parts; higher pressure for complex parts. |
| Injection Speed | Medium‑high speed | High flowability supports rapid cavity filling. |
| Holding Pressure | 40%‑60% of injection pressure | Avoid excessive holding pressure and long holding time to reduce internal stress. |
| Back Pressure | 0.5‑1.5 MPa | Low back pressure for melt compaction; excessive back pressure generates extra shear heat. |
| Screw Speed | Medium speed | Prevent excessive shear‑induced heat accumulation. |
Disclaimer: All above data is for reference only.
