| About |
|---|
| Borstar® MB9641 is a high-density polyethylene with a narrow molecular weight distribution. The grade has good flow properties. This grade is designed for the injection moulding of articles which require good rigidity and high impact strength, even at very low temperatures. APPLICATIONS Boxes – Crates SPECIAL FEATURES High Stiffness Good impact strength Good flow behavior&& |
| Product Description | |
|---|---|
| Supplier | Borealis AG |
| Generic | HDPE |
| Material Status | Commercial: Active |
| Features | Good Rigidity,High impact resistance,Renewable resources,Good liquidity,Weight distribution,High density,low-temperature impact resistance |
| Availabilitys | Africa & Middle East ,North America,Latin America,Asia Pacific,Europe |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 0.964 | g/cm³ | ISO 1183 |
| Melt Flow Rate | |||
| 190℃，2.16kg | 8.0 | g/10min | ISO 1133 |
| Shrinkage rate | 1.0 to 2.0 | % | ISO 294-4 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shaw’s D | 63 | ISO 868 | |
| Tensile modulus | |||
| injection molding | 1200 | MPa | ISO 527-1-2 |
| tensile strength | |||
| Yield, injection molding | 27.0 | MPa | ISO 527-2/50 |
| Tensile strain | |||
| Yield, injection molding | 18 | % | ISO 527-2/50 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Charpy Notched Impact Strength | ISO 179/1eA | ||
| -20℃ | 6.0 | kJ/m² | ISO 179/1eA |
| 23℃ | 7.0 | kJ/m² | ISO 179/1eA |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 0.45 MPa, unannealed | 77.0 | ℃ | ISO 75-2/B |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Processing (melt) temperature | 210 to 275 | °C | |
| Mold temperature | 10 to 40 | °C | |
| Injection speed | Fast | ||
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Depending on wall thickness and moulding parameters |
| 3. Measured on injection moulded specimens acc. to ISO 1873-2 |
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