GPPS 1.Best quality goods 2.competitive price 3. Delivery quickly 4.Free samples
GPPS General Purpose Polystyrene Specification: Injection moulding, extrusion, medical usage Uasge: CD box, drink cup, egg box, extrusion package materials, medical articles, vegetable box in refrigerator Our company can provide other materials that suitable for injection moulding, like LDPE injection moulding grade HDPE injection moulding grade LLDPE injection moulding grade PP injection moulding grade PVC injection moulding grade PET injection moulding grade PC injection moulding grade ABS injection moulding grade HIPS injection moulding grade
| Item | Test conditions | Test method | Test data | unit |
| Density | ISO 1183:1987 | 1040 | kg/m3 | |
| Water absorption | ISO 62:1999 | <0.1 | % | |
| Melt flow rate | 200°C/5kg | ISO 1133:1997 | 3.8 | cm3/10min |
| Process shrinkage | ISO 294-4:1997 | 0.4-0.6 | % | |
| Charpy impact strength | 1eU | ISO 179:1993 | 15 | kj/m2 |
| Tensile modulus | 1mm/min | ISO 527-2:1993 | 3300 | MPa |
| Elongation | 50mm/min | ISO 527-2:1993 | 3 | % |
| Tensile strength at break | 50mm/min | ISO 527-2:1993 | 55 | MPa |
| Ball indentation hardness H | 358N/30s | ISO 2039-1:1993 | 150 | N/mm2 |
| Bending strength | 2mm/min | ISO 178:1993 | 100 | MPa |
| HDT | 1.8MPa | ISO 75-2:1993 | 84 | °C |
| Linear coefficient of thermal expansion | (23-80)°C | DIN 53 752 | 0.8-1.0 | K-1 |
| Heat conduction | DIN 52 612 | 0.16 | W/mK | |
| Vicat softening point | B50/oil | ISO 306:1994 | 93 | °C |
| Flame retardance | >1.4mm | UL-Standard 94 | 94HB | Class |
General Purpose Polystyrene
