ASTM – D955
General purpose polystyrene GPPS 1115 with the easy flow and good clarity. It is recommended for applications where a specific balance of flow and strength are important. In injection moulding, GPPS 1115 possesses low viscosity at the high shear rates. It is particularly suitable for glossy-layer co-extru-sIOn.
Injection moulding, disposable cups, pen barrels, crisper boxes for refrigerators, food containers, gloss layer co-extrusion, loose fill packaging and it can blend with HIPS.
| PROPERTY | Value | Unit | Test Method |
|---|---|---|---|
| Melt Flow Rate (200°C/5KG) | 9 – 11 | g/10min | ASTM – D1238 |
| Vicat softening point (10N) | 95 | °C | ASTM – D1525 |
| Notched IZOD impact strength (23°C) | 1.5 | KJ/m? | ASTM – D256 |
| Unnotched IZOD impact strength (23°C) | 8 | KJ/m? | ASTM – D256 |
| Tensile strength at break | 42 | MPa | ASTM – D638 |
| Elongation at break | 2.5 | % | ASTM – D638 |
| Tensile Modulus | 2900 | MPa | ASTM – D638 |
| Water absorption | <0.09 | % | ASTM – D570 |
| Moulding shrinkage | 0.4 – 0.8 | % |
