Product description: General purpose polystyrene GPPS 1077 is manufactured by continuous mass polymerization of styrene monomer. It has medium heat grade , medium melt strength , good clarity and mechanical strength. Typical application: It is recommended for house ware,containers,drinking cup,table ware,optical parts,plastic bangles, cosmetic packing parts ,stationery products and XPS sheets and plates.
| Properties | Unit | Typical value | Test Method |
| Physical | |||
| Melt flow rate @200°C & 5 kg load | g/10min | 7 | D1238 |
| Mechanical properties | |||
| Tensile strenght | MPa | 52 | D638 |
| Flexural modulus | MPa | 3100 | D790 |
| Charpy impact strength(un notched) | Kj/m² | 8 | D256 |
| Thermal properties | |||
| Vicat softening point @120°C,1 kg(min) | oC | 100 | D1525 |
Note: All mechanical properties measured under standard conditions 50% RH and 23C.