HDPE ExxonMobil HMA‑016
HDPE ExxonMobil HMA‑016 Resin
Material Introduction: HDPE ExxonMobil HMA‑016 is a high‑density polyethylene grade. It features high gloss, good impact strength and dimensional stability, widely used in injection‑molding applications especially for daily‑consumer goods.
Main Applications
Household plastic articles: water buckets, basins, food containers (refrigerator boxes, storage containers, sealing lids), household kitchenware.
Toys: plastic toy manufacturing.
Packaging applications: certain injection‑molded parts for food‑contact packaging.
Physical Properties
| Performance Category | Test Item | Test Condition | Test Standard | Value / Range | Unit |
|---|---|---|---|---|---|
| Basic Properties | Density | 23℃ | ISO 1183/ASTM D1505 | 0.954‑0.956 | g/cm³ |
| Melt Flow Rate | 190°C / 2.16 kg | ASTM D1238 | 20 | g/10 min | |
| Environmental Stress‑Cracking Resistance | 50°C, 10% Igepal | ASTM D1693 | 2.0‑3.0 | hr | |
| Mechanical Properties | Tensile Yield Stress | ‑ | ISO 527‑2 | 23.0‑23.3 | MPa |
| Yield Elongation | ‑ | ISO 527‑2 | 9.8‑10 | % | |
| Elongation at Break | ‑ | ISO 527‑2 | ＞100 | % | |
| Flexural Modulus | 23℃ | ISO 178 | 900‑970 | MPa | |
| Izod Notched Impact Strength | 23℃ | ISO 180/1A | 4.0 | kJ/m² | |
| Thermal Properties | Heat‑Deflection Temperature | 0.45 MPa, non‑annealed | ISO 75‑2/B | 63.6‑66 | °C |
| Melting Peak Temperature | ‑ | ASTM D3418 | 133 | °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 | 50‑95℃ | Affect cooling rate, crystallinity and surface finish |
| Injection Pressure | 70‑105 MPa | Adjust according to part complexity |
| 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.
