HDPE Fushun Petrochemical 2911
HDPE Fushun Petrochemical 2911 Resin
Material Introduction: HDPE Fushun Petrochemical 2911 is a high‑density polyethylene grade supplied as non‑toxic, tasteless and odorless milky‑white pellets. It features high rigidity, good toughness and excellent low‑temperature resistance, mainly used for injection‑molded daily‑use articles and industrial products.
Main Applications
Daily‑use goods & furniture: furniture, general containers, thin‑wall containers, turnover boxes, pallets, sports facilities, safety helmets, fish boxes and household articles.
Industrial components: industrial containers and mechanical parts.
Performance Parameters
| Performance Category | Test Item | Test Method / Condition | Value & Unit | Remarks & Interpretation |
|---|---|---|---|---|
| Basic Properties | Density | ASTM D1505 / GB 1003 | 0.960 g/cm³ | HDPE grade with high hardness and good rigidity. |
| Melt Flow Rate (MFR) | ASTM D1238 / GB 3682 (190°C/2.16 kg) | 20 g/10min | High MFR provides excellent flowability, suitable for high‑speed injection molding, especially favorable for thin‑wall part filling. | |
| Mechanical Properties | Tensile Yield Strength | ASTM D638 / GB 1040 | ≥26 MPa / To be confirmed | Indicator of tensile‑deformation resistance. Data varies among sources; refer to latest TDS for official value. |
| Elongation at Break | ASTM D638 / GB 1040 | ≥80% / To be confirmed | Good toughness and ductility. Data varies among sources; refer to latest TDS for official value. | |
| Izod Notched Impact Strength | ASTM D256 | ≥40 J/m / To be confirmed | Indicator of impact resistance. Data varies among sources; refer to latest TDS for official value. | |
| Thermal Properties | Vicat Softening Point | ASTM D1525 | 129 °C | Heat‑resistance indicator; higher temperature represents better thermal stability. |
| Brittleness Temperature | ASTM D746 | ＜‑70 °C | Maintain toughness under ultra‑low temperature with outstanding low‑temperature performance. | |
| Other Properties | Cleanness (Colored Particles) | SH/T 1541 / Internal method | ≤5 pcs/kg / To be confirmed | Purity and appearance indicator; lower value is preferred. Data varies among sources. |
| Cleanness (Impurity Particles) | SH/T 1541 / Internal method | ≤20 pcs/kg / To be confirmed | Same interpretation as above. |
Injection‑Molding Process Parameters
| Process Parameters | Recommended Range | Remarks & Interpretation (General HDPE characteristics) |
|---|---|---|
| Drying Treatment | Normally not required | Extremely low moisture absorption (≤0.01%). Drying is unnecessary under normal conditions. Dry at 60‑70°C for 1‑2 hours as precaution for high‑humidity storage. |
| Barrel Temperature | 180‑230 ℃ | 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 ℃ | Mold temperature greatly affects crystallization. Higher mold temperature brings higher crystallinity and strength together with larger shrinkage. 10‑20℃ higher than LDPE mold temperature. |
| Injection Pressure | 50‑100 MPa | Good flowability; adopt 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 will generate extra shear heat. |
| Screw Speed | Medium speed | Prevent excessive shear‑induced heat accumulation. |
Disclaimer: All above data is for reference only.
