| About |
|---|
| POLYSTYRENE (PS) COMPOUND (CPD) 4440 is a high impact polystyrene for the injection moulding of parts emanding good dimensional stability at high temperatures, particularly boxes, frames, front and back covers for television sets. In addition, the flow properties of this grade make it particularly suitable for the moulding of large parts and for use with techniques such as gas injection. Main Characteristics High impact Applications Covers for electrical equipment. Office automation.&& |
| Product Description | |
|---|---|
| Supplier | TOTAL |
| Generic | PS (HIPS) |
| Material Status | Commercial: Active |
| Features | High impact resistance,Good Dimensional Stability,High liquidity |
| Availabilitys | Europe |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.04 | g/cm³ | ISO 1183 |
| Apparent density | 0.60 | g/cm³ | |
| Melt Flow Rate | |||
| 200℃，5.0kg | 10 | g/10min | ISO 1133 |
| Shrinkage rate | 0.40 to 0.70 | % | |
| Water absorption rate | |||
| Equilibrium, 23 ℃, 50% RH | < 0.10 | % | ISO 62 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Charpy Notched Impact Strength | 10 | kJ/m² | ISO 179-1eA |
| Impact strength of cantilever beam notch | 10 | kJ/m² | ISO 180-1A |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | ISO 75-2/A | ||
| 1.8 MPa, unannealed | 74.0 | ℃ | ISO 75-2/A |
| 1.8 MPa, annealed | 90.0 | ℃ | ISO 75-2/A |
| Vicat Softening Temp | |||
| A50 | 96.0 | ℃ | ISO 306/A50 |
| B50 | 88.0 | ℃ | ISO 306 |
| Linear coefficient of thermal expansion | |||
| MD | 9.1E-5 | 1/℃ |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Surface resistivity | > 1.0E+14 | ohms | IEC 60093 |
| Dielectric strength | 150 | kV/mm |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Rockwell hardness | |||
| R-level | 76 | ISO 2039-2 | |
| Tensile modulus | 2050 | MPa | ISO 527-2 |
| tensile strength | ISO 527-2 | ||
| yield | 25.0 | MPa | ISO 527-2 |
| fracture | 20.0 | MPa | ISO 527-2 |
| Tensile strain | |||
| fracture | 55 | % | ISO 527-2 |
| Bending modulus | 2000 | MPa | ISO 178 |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Based on natural resin |
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