About |
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SYNTHOS PS GP 171 is general purpose polystyrene (GPPS) with excellent optical properties, gloss, high heat resistance and mechanical strength. It is a thermoplastic material designed for extrusion, thermoforming and injection moulding. Product has a form of cylindrical granules of diameter 2.5 to 6 mms. APPLICATION Injection moulding is used to produce parts with increased thermal and mechanical resistance. Extrusion is used to produce e.g. shower enclosures panels and biaxially-oriented sheets (BOPS). It is used in the production of lightweight sheets (XPS). It is suitable for blending with high-impact polystyrene (HIPS) and SBS copolymers to increase the thermal resistance of the product e.g. cups for hot drinks. The composition of the polymer meets the requirements of the Health and can therefore be used for the production of articles coming into contact with food.&& |
Product Description | |
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Generic | PS (GPPS) |
Material Status | Commercial: Active |
Features | Low density,HB |
Availabilitys | Asia Pacific |
Technical Data | |||
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PHYSICAL | Nominal value | Unit | Test method |
Melt Flow Rate | |||
200℃,5.0kg | 1.4 to 1.7 | g/10min | ISO 1133 |
Shrinkage rate | 0.20 to 0.50 | % | Internal Method |
Particle size | 2.50 to 6.00 | mm |
IMPACT | Nominal value | Unit | Test method |
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Charpy Unnotch Impact strength | |||
23℃ | 18 | kJ/m² | ISO 179/1eU |
THERMAL | Nominal value | Unit | Test method |
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Vicat Softening Temp | |||
B50 | 101 | ℃ | ISO 306 |
FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
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1.60 mm | HB | UL 94 |
Supplementary information | Nominal value | Unit | Test method |
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Residual Styrene | 0.035 | % | Internal Method |
Process Conditions | |||
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injection | Nominal value | Unit | Test method |
Extrusion | Nominal value | Unit | Test method |
Drying temperature | |||
Hot air dryer | 80 | °C | |
Vacuum dryer | 70 | °C | |
Drying time | |||
Hot air dryer | 1.0 | hr | |
Vacuum dryer | 2.0 to 4.0 | hr | |
Processing (melt) temperature | 180 to 280 | °C | |
Mold temperature | 10 to 60 | °C | |
Melt temperature | 200 to 250 | °C |
Notes |
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1. Typical properties: these are not to be construed as specifications. |
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