Synthos PS GP 171

About
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
GenericPS (GPPS)
Material StatusCommercial: Active
FeaturesLow density,HB
AvailabilitysAsia Pacific

Technical Data
PHYSICALNominal valueUnitTest method
Melt Flow Rate
200℃,5.0kg1.4 to 1.7g/10minISO 1133
Shrinkage rate0.20 to 0.50%Internal Method
Particle size2.50 to 6.00mm

IMPACTNominal valueUnitTest method
Charpy Unnotch Impact strength
23℃18kJ/m²ISO 179/1eU

THERMALNominal valueUnitTest method
Vicat Softening Temp
B50101ISO 306

FLAME CHARACTERISTICSNominal valueUnitTest method
1.60 mmHB UL 94

Supplementary informationNominal valueUnitTest method
Residual Styrene0.035%Internal Method

Process Conditions
injectionNominal valueUnitTest method
ExtrusionNominal valueUnitTest method
Drying temperature  
Hot air dryer80°C
Vacuum dryer70°C
Drying time  
Hot air dryer1.0hr
Vacuum dryer2.0 to 4.0hr
Processing (melt) temperature180 to 280°C
Mold temperature10 to 60°C
Melt temperature200 to 250°C

Notes
1. Typical properties: these are not to be construed as specifications.
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